CM 10PV - Multimeter BENNING - Free user manual and instructions
Find the device manual for free CM 10PV BENNING in PDF.
| Product Type | True RMS Digital Clamp Multimeter |
| Brand | BENNING |
| Model | CM 10 PV |
| Dimensions (L x W x H) | 240 x 86 x 48 mm |
| Weight (with batteries) | 445 g |
| Power Supply | 2 x 1.5 V LR6 (AA) batteries |
| Battery Life | Approx. 200 hours (without backlight or Bluetooth) |
| Display | LCD 6000 counts, 15 mm height |
| Measurable Voltages (AC/DC) | Up to 1000 V (via TA PV adapter: 1500 V AC / 2000 V DC) |
| Measurable Currents (AC/DC) | Up to 600 A (clamp), microamps up to 4000 µA |
| Resistance | Up to 600 kΩ |
| Capacitance | Up to 1000 µF |
| Frequency | Up to 10 kHz |
| Temperature | -40 °C to +400 °C (with type K probe) |
| Special Functions | Continuity test with buzzer and LED, diode test, non-contact voltage indicator (VoltSense), inrush current measurement (INRUSH), low-pass filter (HFR) |
| Connectivity | Bluetooth 4.0 LE for transmission to smartphone/tablet |
| Data Logger | Up to 4000 values, automatic or manual |
| Measurement Categories | CAT IV 600 V, CAT III 1000 V |
| Protection Rating | IP30 |
| Maintenance | Clean with a dry cloth, no solvents |
| Included Accessories | Test leads, alligator clips, TA PV adapter, carrying case, temperature probe, batteries |
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USER MANUAL CM 10PV BENNING
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Technical diagram of a digital multimeter with labeled components and measurement setup, including a dial-up meter and a pressure gauge.Fig. 10: Voltage indicator with buzzer and LED
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Technical line drawing of a handheld device with internal components and battery pack (no text or symbols)natural_image
Diagram showing a waveform with zigzag patterns before and after an arrow, ending with a smooth curve (no text or symbols)4
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| Phase | Current (A) | | ----------- | ----------- | | Motor Aus | 0.6A | | Trigger-punkt | 30.0A | | Motor Ein | 10.0A |text_image
LOG 2 Sec Press >2Sec LOG V HOLD LOG- DC/ AC voltage measurements
- DC/ AC current measurements
- resistance measurements
- continuity and diode tests
- capacity measurement
- frequency measurement
- temperature measurement
Table of contents
- User instructions
- Safety instructions
- Scope of delivery
- Device description
- General information
5.1 General information
5.2 Data logger functions
5.2.1 Setting the data logger
5.2.2 Automatic storage (LOG)
5.2.3 Manual storage (SAVE)
5.3 Data transmission to the smartphone/tablet - Ambient conditions
- Electrical specifications
- Measuring with the BENNING CM 10-PV
- Maintenance
- Technical data of measuring accessories
- Environmental note
1. User instructions
This operating manual is intended for
- skilled electricians and
- electrotechnically trained personnel.
The BENNING CM 10-PV is intended for measurements under dry ambient conditions. It must not be used in electrical circuits with a nominal voltage higher than 1000 VAC/DC (see section 6 „Ambient conditions“ for details). When using the BENNING TA PV measuring adapter, the nominal voltage range increases to 1500 VAC/2000 VDC (see section 8.2.2 „Voltage measurement (switch position PV)“ and section 10 „Technical data of measuring accessories“ for details).
The following symbols are used in this operating manual and on the BENNING CM10-PV:
Application around and removal from HAZARDOUS LIVE conductors is permitted.
Warning of electrical danger!
Indicates instructions which must be followed to avoid danger to persons.
Attention! Must comply with documentation!
This symbol indicates that the information provided in the operating manual must be complied with in order to avoid risks.
Measuring category II is applicable to testing and measuring circuits CAT II which are directly connected to user connections (sockets and similar connections) of the low-voltage mains installation.
Measuring category III is applicable to testing and measuring circuits CAT III connected to the distribution circuit of the low-voltage mains installation of a building.
Measuring category IV is applicable to testing and measuring circuits CAT IV connected to the feed-in point of the low-voltage mains installation of a building.
This symbol on the BENNING CM 10-PV indicates that the BENNING CM 10-PV is equipped with protective insulation (protection class II).
Please observe the operating manual!
This symbol on the BENNING CM 10-PV means that the BENNING CM 10-PV complies with the EU directives.
This symbol appears on the display to indicate a discharged battery.
This symbol indicates the "diode-testing" application.
This symbol designates the „continuity test“ field. The buzzer is intended for acoustic result output.
This symbol marks the range "capacity testing".
(DC) Direct voltage or current.
(AC) Alternating voltage or current
Ground (voltage against ground)
2. Safety instructions
The instrument is built and tested in accordance with
DIN VDE 0411 Part 1/ EN 61010-1
DIN VDE 0411 Part 2-032/EN 61010-2-032
DIN VDE 0411 Part 2-033/EN 61010-2-033
DIN VDE 0411 Part 031/EN 61010-031
and has left the factory in perfectly safe technical condition.
To preserve this condition and to ensure safe operation of the device, the user must observe the notes and warnings given in these instructions at all times. Improper handling and non-observance of the warnings might involve severe injuries or danger to life.
WARNING! Be extremely careful when working with bare conductors or main line carrier! Contact with live conductors will cause an electric shock!
The BENNING CM 10-PV must be used in electrical circuits of overvoltage category III with a conductor for a maximum of 1000 V to earth only or of overvoltage category IV with a conductor for a maximum of 600 V to earth only.
Only use suitable measuring leads for this. With measurements within measurement category III or measurement category IV, the projecting conductive part of a contact tip of the measuring leads must not be longer than 4 mm.
Prior to carrying out measurements within measurement category III and measurement category IV, the push-on caps provided with the set and marked with CAT III and CAT IV must be pushed onto the contact tips. The purpose of this measure is user protection.
Please observe that work on live parts and electrical components of all kinds is dangerous! Even low voltages of 30 V AC and 60 V DC may be dangerous to human life!
For voltage measurements on PV systems with system voltages of up to 1500 V DC, use the BENNING TA PV measuring adapter and the switch position "PV" of the BENNING CM 10-PV only.
The measuring adapter reduces the voltage applied to the BENNING CM 10-PV and is to be used exclusively for the BENNING CM 10-PV!
Electrical danger!
The measuring adapter BENNING TA PV must be used in electrical circuits of overvoltage category II with a conductor for a maximum of 1000 V AC/ 1500 V DC to earth, overvoltage category III with a conductor for a maximum of 1000 V to earth only or of overvolt age category IV with a conductor for a maximum of 600 V to earth only.
In order to prevent any danger, always measure a present voltage first without low-pass filter (without high-frequency suppression) to detect a dangerous voltage.
Before starting the current clamp multimeter, always check the device as well as all measuring leads for damages.
If it can be assumed that safe operation is no longer possible, switch the device off immediately and secure it against unintended operation.
Safe operation can be assumed to be no longer possible, if
- the device or the measuring leads exhibit visible damages,
- the device no longer works,
- the device has been stored under unfavourable conditions for a longer period of time,
- the device was exposed to extraordinary stress during transport, or
- if the device or the measuring leads are exposed to moisture.
In order to prevent danger
- do not touch the bare contact tips of the measuring leads,
- plug the measuring leads into the correspondingly marked measuring sockets of the multimeter and check them for tight fit.
Maintenance:
Do not open the multimeter, because it contains no components which can be repaired by the user. Repair and service must be carried out by qualified personnel only!
Cleaning:
Regularly wipe the housing by means of a dry cloth and cleaning agent. Do not use any polishing agents or solvents!
3. Scope of delivery
The scope of delivery of the BENNING CM 10-PV comprises:
3.1 One BENNING CM 10-PV
3.2 Two safety measuring lead, red/ black (L = 1.4 m) (part no. 044145)
3.3 Two safety crocodile clips, red/ black, 4 mm plug-in technology
3.4 One BENNING TA PV measuring adapter (item no. 10217846)
3.5 One compact protection carrying case
3.6 One wire temperature sensor, type K
3.7 Two 1.5 V batteries (type AA/ IEC LR6) for initial assembly is integrated into the device
3.8 One operating manual
Note on optional accessory:
- Flexible AC current transformer BENNING CFlex 1 (part no. 044068)
Alternating current ranges: 30 A/ 300A/ 3000 A
- Temperature probe (K-type) made of V4A tube
application: insertion probe for soft-plastic materials, liquids, gas and air
measuring range: - 196 °C up to 800 °C
dimensions: length = 210 mm, tube length = 120 mm, tube diameter
$$ = 3 \mathrm{mm}, \mathrm{V} 4 \mathrm{A} (\mathrm{P}. \text { n o . } 0 4 4 1 2 1) $$
Parts subject to wear:
- The BENNING CM 10-PV is supplied by means of two integrated 1.5 V batteries (AA/ IEC LR6).
- With the protective caps being attached, the safety measuring leads mentioned above (tested accessories, item no. 044145) comply with CAT III 1000 V/CAT IV 600 V and are approved for a current of 10 A.
- The BENNING TA PV measuring adapter mentioned above (tested accessories, item no. 10217846) complies with CAT II 1000 V AC/1500 V DC, and with the protective caps being attached it complies to CAT III 1000 V/CAT IV 600 V.
4. Device description
See figure 1: Device front
The display and operating elements shown in figure 1 are designated as follows:
① Measuring clamp, for clamping on the single-wire live conductor,
② Bulge for current clamp, protects against contact with conductor,
3 LED (red) for voltage indicator and continuity test
4 Opening lever, for opening and closing the current clamp, for activation of the measuring point illumination
5 HOLD/ZERO key, measured value storage respectively ZERO for null balance (ADC)
6 Rotary switch, for selecting the measuring function,
⑦ Bluetooth® key, for activation of the Bluetooth® interface, resp. LOG function
⑧ HFR key, to enable the high-frequency suppression (low-pass filter), or IN-RUSH function
9 MIN/MAX-key, storage of highest and lowest measurement value, resp. Volt-sense function
10 MODE key (blue), for selecting the measuring function/secondary function, resp. display illumination
11 Digital display, for the measurement value and display for overrange indication
⑫ Polarity indication,
13 Battery condition indicator,
14 COM jack, common jack for voltage/ microampere/ resistance/ frequency/ capacity/ temperature measurements, continuity tests and diode tests
15 Jack + (positive ^1 ), for V, A, , Hz, F, ^ C
16 BENNING TA PV measuring adapter
1) This is what the automatic polarity indication for DC current and DC voltage refers to
5. General information of the digital current clamp multimeter
5.1 General information
5.1.1 The digital display ⑪ is designed as a 4 digit liquid crystal indicator with 15 mm digit height and decimal point. The highest value displayed is 6000.
5.1.2 The polarity indication 12 functions automatically. Only a polarity contrary to the socket definition is indicated as “-”.
5.1.3 The range overload will be displayed with "OL" or "-OL".
Attention: No indication and prior warning in the event of an overload condition! A exceeding of dangerous contact voltage (> 60 V DC/ 30 V AC rms) is indicated by an additional flashing symbol „(⚡)“.
5.1.4 The BENNING CM 10-PV confirms each button press with a signal sound. Invalid button presses are confirmed by a double signal sound.
5.1.5 The nominal measurement rate of the BENNING CM 10-PV is 3 measurements per second (sec) for the digital display.
5.1.6 The BENNING CM 10-PV is switched on and off by the rotating switch ⑥. Switch-off position "OFF".
5.1.7 The "HOLD/ZERO" key ⑤ has two functions:
HOLD key function:
Press the HOLD/ZER5 to store the measuring result. At the same time, the digital display 11 shows the "HOLD" symbol. If the measured value exceeds the stored value by 50 digits, the change of the measured value is indicated by the display flashing and an acoustic signal. (Changes of measured values between AC and DC voltage / current will not be recognized). Press the key again to switch the device back to the measuring mode.
ZERO key function:
For null balance in case of current measurements with the A DC function. For this, remove the BENNING CM 10-PV from all live conductors and press the HOLD/ ZERO key ⑤ for 2 seconds until the "ZERO" symbol is displayed.
5.1.8 The Bluetooth ^® key ⑦ has two functions:
Bluetooth® interface:
Enables the Bluetooth ^® interface with the “✗” symbol being shown on the LC display ⑪ at the same time. Press the key again to disable the Bluetooth ^® interface.
LOG function (data logger/measured value memory):
Press the key for approx. 2 seconds to enable the LOG function with the "LOG" symbol being shown on the digital display ⑪ at the same time. See section 5.2
5.1.9 The HFR key ⑧ has two functions:
HFR function (low pass filter):
The HFR function is intended for connecting a low-pass filter (high-fre-
quency suppression) in the V_AC and A_AC functions in order to filter out high-frequency pulses e. g. at pulsed motor drives. "HFR" symbol on the LC display ⑪. The limiting frequency (-3 dB) of the filter is fg = 800 Hz. When reaching the limiting frequency fg, the displayed value is lower by a factor of 0.707 than the actual value without filter. Press the key again to switch back to normal operating mode.
without HFR (without low-pass filter)
with HFR (with low-pass filter)
natural_image
Diagram showing a waveform transitioning from a high-frequency oscillation to a low-frequency sinusoidal signal, with no text or symbols present.
In order to prevent any danger, always measure a present voltage first without low-pass filter (high-frequency suppression) to detect a dangerous voltage.
INRUSH function (inrush current measurement):
In measuring mode “A AC”, press the HFR key 8 for approx. 2 seconds to enable the inrush current measurement. At the same time, the digital display 11 shows the symbol. Press the key again to select a suitable measuring range. The INRUSH function initiates a measuring process for 100 milliseconds after a trigger current is applied. The averaged value of this time period is displayed. Press the key 8 for approx. 2 seconds to switch back to the measuring mode.
Trigger current: (> 0.5 A in the 60 A measuring range, > 5 A in the 600 A measuring range)
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| Time Segment | Current (A) | | ------------ | ----------- | | trigger point | 30.0A | | on | 10.0A |5.1.10 The MIN/ MAX key ⑨ has two functions:
MAX/MIN function:
The MIN/MAX function automatically records and stores the highest and the lowest measured value. By pressing the key again, the following values are displayed: "MAX/MIN" displays the current measured value, "MAX" displays the highest value stored and "MIN" displays the lowest value stored. Press the HOLD/ZERO key ⑤ to pause the MIN/MAX function. Press the key for approx. 2 seconds to switch back to normal operating mode.
Voltage indicator function:
Press the key for approx. 2 seconds to enable the voltage indicator function (VoltSense) for non-contact detection of an alternating field (see section 8.10).
5.1.11 The MODE key (blue) ⑩ has two functions:
Press the MODE key (Blue) select the secondary or third function of the rotary switch position.
Press the key for approx. 2 seconds to enable or disable the display illumination.
5.1.12 The BENNING CM 10-PV switches off automatically after approx. 20 minutes (APO, Auto-Power-Off). It switches on again if the rotary switch is switched on from switch position "OFF" or if a key is pressed. The switch-off time can be set (see section 5.1.13).
5.1.13 The BENNING CM 10-PV offers individual setting possibilities. To change a setting, press one of the following keys and simultaneously switch on the BENNING CM 10-PV from the "OFF" position.
| MODE key (blue) 10: | Setting the APO time to 5/10/20 min. or switching off the APO function, “OFF” is shown on the display. Each time the key is pressed again, the value changes. |
| MIN/MAX key 9: | Unit of temperature in °C or °F |
| HOLD/ZERO key 5: | Displaying all display symbols |
| HFR 8 | Displaying the firmware version |
5.1.14 Temperature coefficient of the measured value: 0.2 x (stated measuring accuracy)/°C < 18 °C or > 28 °C, related to the value for the reference temperature of 23 °C.
5.1.15 The BENNING CM 10-PV is supplied by means of two 1.5 V batteries (IEC LR6/AA).
5.1.16 The battery indication ^13 continuously shows the remaining battery capacity via a maximum of three segments. When switched on, the device additionally displays the battery status “Full” (full), “HALF” (half) or “Lo” (low).
As soon as all segments of the battery symbol have disappeared and the battery symbol is flashing, the batteries must be replaced by new ones immediately in order to prevent danger for persons caused by incorrect measurements.
5.1.17 The battery life is approximately 200 hours without using the display illumination and the Bluetooth® function (alkaline battery).
5.1.18 Dimensions of the BENNING CM 10-PV: (L x W x H) = 240 x 86 x 48 mm Weight: 445 g with batteries
5.1.19 Current clamp opening: 37 mm
5.1.20 The safety measuring leads supplied are expressly suited for the rated voltage and the rated current of the BENNING CM 10-PV.
5.1.21 The BENNING CM 10-PV supports wireless data transmission via the Bluetooth® 4.0 standard to an Android or IOS device (smartphone/tablet).
5.2 Data logger functions
The data logger (LOG) allows the automatic and manual storage of series of measurements with a predefined measuring interval (sampling rate) and up to 4000 measured values. The measuring interval can be set from 1 s to 60 s. The measured values can be read out later via Bluetooth ^® for further processing.
5.2.1 Setting the data logger
To set the data logger, press the Bluetooth® key ⑦ and simultaneously switch on the BENNING CM 10-PV via the rotary switch ⑥. The current setting is shown by a symbol on the digital display ⑪. As soon as the symbol appears, press the Bluetooth® key ⑦ repeatedly to select from the following functions:
Symbol: Function:
| „LOG“ | Automatic storage with predefined measuring interval |
| „SAVE“ | Manual storage by pressing a key |
| „CLR“ | Deleting the internal measured value memory |
A selected function will be automatically accepted after 2 seconds and remains permanently stored.
flowchart
graph TD
A["Press"] --> B["OFF"]
B --> C{Display}
C -->|Press| D["OK"]
C -->|Press| E["SRRUE"]
E --> F["OK"]
E --> G["PRS"]
G --> H["OK"]
H --> I["PRS"]
I --> J["OK"]
5.2.2 Automatic storage (LOG)
Set the data logger to automatic storage „LOG“ with predefined measuring interval according to section 5.2.1. To enable the data logger, press the Bluetooth® key ⑦ for 2 seconds until the „LOG“ symbol and the set measuring interval are shown on the digital display ⑪. As soon as the measuring interval is shown, directly press the Bluetooth® key ⑦ to set the measuring interval to 1 s, 5 s, 10 s, 30 s or 60 s.
After having selected the desired measuring interval, the data logger starts storing measured values in the internal memory automatically after 2 seconds. If the data logger is enabled, the symbol "LOG" is flashing. Press the Bluetooth® key for 2 seconds to stop the data logger.
Note:
Each start of the data logger „LOG“ deletes the internal memory and thus all stored measured values.
flowchart
graph TD
A["Device 1"] -->|Log 2 Sec| B["Press >2 Sec"]
B --> C{Press}
C -->|Log 60 Sec| D["Press"]
C -->|Log 60 Sec| E["Press"]
D --> F["Wait 2 Sec"]
E --> F
5.2.3 Manual storage (SAVE)
Set the data logger to manual storage "SAVE" by pressing a key according to section 5.2.1. To enable the data logger, press the Bluetooth® key ⑦ for 2 seconds until the „LOG“ symbol on the digital display ⑪ flashes. Each time the HOLD key ⑤ is pressed, the current measured value is stored in the internal memory and the corresponding storage location number is briefly shown on the digital display ⑪. Manual storage is stopped by pressing the Bluetooth® key ⑦ for 2 seconds.
Note:
The first start of the manual storage "SAVE" deletes the internal memory and thus all stored measured values of the data logger "LOG". The manual storage "SAVE" can then be started and stopped several times. The measured values are continuously stored in the internal memory at the storage locations 0001 to 4000.
text_image
LOG 2 Sec Press >2Sec LOG V HOLD LOG
flowchart
graph TD
A["Device with LOG/2 Sec"] -->|Press >2Sec| B["Display with LOG"]
B --> C["Hold Logic"]
C --> D["Display with LOG"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#cfc,stroke:#333
style D fill:#fcc,stroke:#333
5.3 Data transmission to the smartphone/tablet
The BENNING CM 10-PV is provided with a Bluetooth Low Energy 4.0 interface for real-time wireless transmission of measured values to an Android or IOS device.
The "BENNING MM-CM Link" app required for this is available in the Google Play Store and in the Apple App Store.
Google Playstore App Store
The "BENNING MM-CM Link" app offers i.a. the following functions:
- Displaying of the measured values in real time and storage as CSV file.
- Download of the data logger LOG (up to 4,000 measured values) from the BENNINGCM10-PV.
To activate the Bluetooth® interface, press the Bluetooth® key 7 at the BENNING CM 10-PV (symbol ✕ flashes). As soon as a Bluetooth® connection is established, the symbol “✗” is displayed permanently.
Range in open space: approx. 10 m
6. Ambient conditions
- The BENNING CM 10-PV is intended for making measurements in dry environment.
- Maximum barometric elevation for making measurements: 2000 m,
- Overvoltage category / installation category of the BENNING CM 10-PV: IEC 60664/ IEC 61010 → 600 V category IV; 1000 V category III
- Contamination class: 2,
- Protection class: IP 30 (DIN VDE 0470-1, IEC/ EN 60529)
IP 30 means: Protection against access to dangerous parts and protection against solid impurities of a diameter >2.5 mm, (3 - first index). No protection against water, (0 - second index).
- Operating temperature and relative humidity:
For operating temperatures from 0 °C to 30 °C: relative air humidity lower than 80 %,
For operating temperatures from 31 °C to 40 °C: relative air humidity lower than 75 %,
For operating temperatures from 41 °C to 50 °C: relative air humidity lower than 45 %.
- Storage temperature: The BENNING CM 10-PV can be stored at temperatures between - 10 °C and + 60 °C, at a relative air humidity lower than 80 % without batteries.
7. Electrical specifications
Note: The measuring precision is specified as the sum of
- a relative fraction of the measured value and
- a number of digits (counting steps of the least significant digit).
This specified measuring precision is valid for temperatures in the range from 18 °C to 28 °C and relative humidity less than 80 %. The stated accuracy is specified for 1 % to 100 % of the final measuring range value.
Additional specifications for AC functions:
The measuring value is gained and indicated as effective value (True RMS, AC coupling). In case of non-sinusoidal curves, the indicating value becomes inaccu-
rate. Thus, an additional error occurs for the following crest factors:
crest factor from 1.0 to 2.0 additional error + 3.0 %
crest factor from 2.0 to 2.5 additional error + 5.0 %
crest factor from 2.5 to 3.0 additional error + 7.0 %
Maximum crest factor of the measuring signal:
crest faktor 3.0 @ 3000 digits
crest faktor 2.0 @ 4500 digits
crest faktor 1.5 @ 6000 digits
Measured values < 20 digits are set to 0 on the digital display ⑪.
Square-wave signals are not specified.
HFR function (low-pass filter)
additional error for functions V_AC , A_AC and (flexible AC current transformer)
± 4 % with regard to the specified measuring accuracy (45 Hz to 200 Hz)
Limiting frequency fg (- 3 dB): 800 Hz
7.1 Voltage ranges (V AC, V DC)
| Function Measuring range | Resolution Measurement accuracy | ||
| V AC | 600.0 V1000 V | 0.1 V1 V | ± (1.0 % + 7 digits), 45 Hz - 400 Hz, sine |
| V DC | 600.0 mV 0.1 mV ± (0.7 % + 7 digits) | ||
| 600.0 V1000 V | 0.1 V1 V | ± (0.7 % + 4 digits) | |
Overload protection: 1000 VAC/DC
Input resistance: DC: 10 MΩ, AC: 10 MΩ II < 100 pF
7.2 Voltage ranges (PV) via BENNING TA PV measuring adapter
| Function Measuring range | Resolution Measurement accuracy | ||
| PV V DC | 600.0 V2000 V | 0.1 V1 V | ± (2.0 % + 7 digits) |
| PV V AC | 600.0 V1500 V | 0.1 V1 V | ± (2.0 % + 7 digits). 45 Hz - 400 Hz. sine |
Overload protection: 1000 VAC/DC
Input resistance: DC: 10 MΩ, AC: 10 MΩ II < 100 pF
7.3 Current ranges (A AC/DC)
| Function Measuring range | Resolution Measurement accuracy | ||
| A AC [1][2] | 60.00 A | 0.01 A | ± 2.0 % + 7 digits |
| 600.0 A | 0.1 A | ||
| A DC [1] | 60.00 A | 0.01 A | ± 2.0 % + 7 digits |
| 600.0 A | 0.1 A | ||
[1] Measured values below < 5 A, plus 10 digits
[2] Frequency > 100 Hz, plus 1 %
Overload protection: 600 A AC/DC
Frequency range: 45 Hz - 400 Hz (sine)
Positioning error: ± 1 % of the measured value
7.3.1 Microampere current ranges ( A_AC/DC )
| Function Measuring range | Resolution Measurement accuracy | ||
| A_AC/DC | 400.0 A 4000 A | 0.1 A 1 A | ± 1.0 % + 5 digits |
Overload protection: 1000 VAC/DC
Input resistance: ca. 3 kΩ
Frequency range: 45 Hz - 400 Hz (sine)
7.3.2 INRUSH function (inrush current measurement)
additional error for functions A_AC and (flexible AC current transformer)
± 3 % with regard to the specified measuring accuracy
Average time: 100 ms
Trigger current: > 0.5 A eff in the 60 A measuring range, > 5 A eff in the 600 A measuring range
7.4 Resistance measuring ranges (Ω), continuity and diode testing
| Function Measuring range | Resolution Measurement accuracy* | ||
| 600.0 Ω 0.1 Ω ± 0.9 % + 7 digits | |||
| Resistance | 6.000 kΩ 0.001 kΩ | ± 0.9 % + 4 digits | |
| 60.00 kΩ 0.01 kΩ | |||
| 600.0 kΩ 0.1 kΩ | |||
| Continuity 600.0 Ω 0.1 Ω ± 0.9 % + 7 digits | |||
| Diode 1.500 V 0.001 V ± 0.9 % + 4 digits | |||
* Before the measurement, a possible offset must be determined by short-circuiting the measuring leads and subtracting them from the measured value.
Overload protection: 1000 V _AC/DC
Max. open circuit-voltage: approx. 1.8 V
The built-in buzzer sounds when resistance is less than 20 Ω to 200 Ω.
Response time: < 100 ms
Acoustic indication: 2.7 kHz
7.5 Capacity ranges (μF)
Conditions: Capacitors discharged and connected in accordance with the polarity stated.
| Measuring range | Resolution | Measurement accuracy |
| 100.0 μF | 0.1 μF | ± 1.9 % + 4 digits |
| 1000 μF | 1 μF |
Overload protection: 1000 V _AC/DC
7.6 Frequency ranges (Hz)
| Measuring range | Resolution | Measurement accuracy |
| 100.00 Hz | 0.01 Hz | ± 0.3 % + 5 digits |
| 1000.0 Hz | 0.1 Hz | |
| 10.000 kHz | 0.001 kHz |
Overload protection: 1000 V AC/DC , 600 A AC/DC
Minimum sensitivity:
5 V _eff for V AC range (1 Hz - 10 kHz)
8 A _eff for A AC range (1 Hz - 1 kHz)
Min. frequency: 1 Hz
7.7 Temperature range (°C/°F)
Overload protection: 1000 V _AC/DC
| Measuring range | Resolution | Measurement accuracy* |
| -40 °C - +400 °C | 0.1 °C | ± (1% + 22 digits) |
| -40 °F - +752 °F | 0.1 °F | ± (1% + 38 digits) |
* The measuring accuracy of the K-type temperature sensor has to be added to the specified measuring accuracy.
Wire temperature sensor (type K): Measuring range: - 60 °C to 200 °C
Measurement accuracy: ± 2 °C
The measuring accuracy applies to stable ambient temperatures <±1 ^ . After
a change of the ambient temperature of ±2 ^ , the measuring accuracy data will apply after 2 hour.
7.8 Measuring input of flexible AC current transformer (☐)
| Measuring range (1 mV/ 1 A) Resolution Measurement accuracy [1] | ||
| 300.0 A 0.1 A | ± 1.5 % + 5 digits (45 Hz - 400 Hz) | |
| 3000 A 1 A | ||
[1] The measuring accuracy of the flexible current transformer BENNING CFlex 1 (item no. 044068) has not been taken into consideration.
Overload protection: 1000 VAC/DC
8. Measuring with the BENNING CM 10-PV
8.1 Preparation for measuring
Store and use the BENNING CM 10-PV only under the correct temperature conditions stated. Always avoid longer exposure to sunlight.
- Check the rated voltage and rated current stated on the safety measuring leads. The safety measuring leads supplied with the unit are suitable for the rated voltage and current of the BENNING CM 10-PV.
- Check the insulation of the safety measuring leads. If the insulation is damaged in any way, do not use the leads.
- Check the continuity of the safety measuring leads. If the conductor in the safety measuring lead is interrupted, do not use the leads.
- Before selecting another function with the rotating switch ⑥, always disconnect the safety measuring leads from the measuring point.
- Sources of strong current in the vicinity of the BENNING CM 10-PV may cause unstable or incorrect readings.
8.2 Voltage/ frequency measurement
Do not exceed the maximum permitted voltage with respect to earth potential!
Please observe the overvoltage category of the electric circuit! Attach the protective caps (CAT III/IV) to the contact tips before making measurements in circuits of overvoltage category CAT III or IV.
Electrical danger!
The highest voltage that may be applied to the jacks
- COM jack 14,
- jack + 15
of the BENNING CM 10-PV against ground is 600 V CAT IV/ 1000 V CAT III.
8.2.1 Voltage/ frequency measurement (switch position: , V\~ V=
- Use the rotary switch ⑥ to select the required function V or V on BENNING CM 10-PV.
- Connect the black safety measuring lead to the COM jack 14 of the BENNING CM 10-PV.
- Connect the red safety measuring lead to the jack + 15 of the BENNING CM 10-PV.
- Bring the safety measuring leads into contact with the measuring points and read the measured value on the digital display ⑪ of the BENNING CM 10-PV.
- In the function, the MODE key (blue) can be used for switching over to frequency measurement (Hz).
- In the function, the MODE key (blue) can be used for switching over to the mV range.
see fig. 2: Direct voltage measurement
see fig. 3: Alternating voltage measurement (frequency measurement)
8.2.2 Voltage measurement (switch position PV) using the BENNING TA PV measuring adapter
For voltage measurements on PV systems with system voltages of up to 1500 V DC, use the BENNING TA PV measuring adapter and the switch position "PV" of the BENNING CM 10-PV only.
The measuring adapter reduces the voltage applied to the BENNING CM 10-PV and is to be used exclusively for the BENNING CM 10-PV! Electrical danger!
- Insert the BENNING TA PV measuring adapter into the COM jack N and the +jack O.
- Use the rotary switch 6 to select the required function PV on BENNING CM 10-PV.
- The DC coupling mode is automatically preselected and can be set to the AC coupling mode using the MODE key (blue) ^J , if necessary.
- Bring the safety measuring leads into contact with the measuring points and read the measured value on the digital display K of the BENNING CM10-PV.
Note:
If the PV measuring range is selected without the BENNING TA PV measuring adapter being inserted, or if an incorrect measuring range is selected with the BENNING TA PV measuring adapter being inserted, an acoustic signal is emitted and the „Prob“ symbol is shown on the digital display K.
An acoustic signal is emitted if the wrong coupling mode (e.g. AC instead of DC) is selected in the PV measuring range and a DC voltage greater than 30 V is contacted via the BENNING TA PV measuring adapter. The incorrectly set coupling mode is indicated in this case by a flashing symbol „DC“ and „ ^7 “.
The same applies to an AC application with incorrectly set DC coupling type. An acoustic signal is emitted and a flashing "AC" symbol and "," is shown on the digital display.
see fig. 4: PV voltage measurement using the BENNING TA PV measuring adapter
8.3 Current/ frequency measurement (switch position ^H )
Do not apply any voltage to the input jacks N and O of the BENNING CM 10-PV! Any possibly connected safety measuring leads have to be removed.
- Use the rotary switch 6 to select the required function Hz and press the MODE key (blue) J to select the coupling mode on BENNING CM 10-PV.
- Press the "ZERO" button 5 (2s) to set the BENNING CM 10-PV to the starting point (only DC coupling mode).
- Operate opening lever 4, clamp 1 single wire live conductor centrally by means of the BENNING CM 10-PV current probe.
- In the A\~ function, the MODE key (blue) J can be used for switching over to frequency measurement (Hz).
- Read off the digital display unit K.
see fig. 5: Direct/ alternating current measurement (frequency measurement)
8.3.1 Microampere current measurement (switch position: A )
- Use the rotary switch 6 to select the required function the MODE key (blue) J can be used to select the coupling mode on BENNING CM 10-PV.
- Connect the black safety measuring lead to the COM jack N of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + O of the BENNING CM10-PV.
- Bring the safety measuring leads into contact with the measuring points and read the measured value on the digital display K of the BENNING CM10-PV.
see fig. 6: Microampere direct/ alternating current measurement
8.4 Resistance measurement (switch position 10)
- Use the rotary switch 6 to select the required function on BENNING CM10-PV.
- Connect the black safety measuring lead to the COM jack N of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + O of the BENNING CM10-PV.
- Bring the safety measuring leads into contact with the measuring points and read the measured value on the digital display K of the BENNING CM10-PV.
see fig. 7: Resistance measurement/ continuity and diode test/ capacitance measurement
8.5 Continuity test with buzzer and LED (switch position
- Use the rotary switch 6 to select the required function on BENNING CM10-PV.
- Connect the black safety measuring lead to the COM jack N of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + O of the BENNING
CM10-PV.
- Press the MODE key (blue) 10 to enable the continuity test with buzzer/LED.
- Bring the safety measuring leads into contact with the measuring points. If the line resistance between the COM jack 14 and the jack 15 falls below a value between 20 Ω and 200 Ω, the integrated buzzer of the BENNING CM 10-PV sounds and the red LED 3 lights up.
see fig. 7: Resistance measurement/ continuity and diode test/ capacitance measurement
8.6 Capacitance measurement (switch position
Discharge capacitors fully before measurement! Never apply voltage to the sockets for capacitance measurement as this may cause irreparable damage to the unit. A damaged unit may represent an electrical hazard!
- Use the rotary switch ⑥ to select the required function on BENNING CM10-PV.
- Determine the polarity of the capacitor and discharge it completely.
- Connect the black safety measuring lead to the COM jack 14 of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + 15 of the BENNING CM10-PV.
- Press the MODE key (blue) 10 twice to enable the capacity measurement function.
- Contact the discharged capacitor with the safety measuring leads observing correct polarity. Read the measurement value on the digital display ^11 of the BENNINGCM10-PV.
see fig. 7: Resistance measurement/ continuity and diode test/ capacitance measurement
8.7 Diode test (switch position
- Use the rotary switch ⑥ to select the required function on BENNING CM10-PV.
- Connect the black safety measuring lead to the COM jack 14 of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + 15 of the BENNING CM10-PV.
- Press the MODE key (blue) 10 3 times to enable the diode test.
- Bring the safety measuring leads into contact with the measuring points and read the measured value on the digital display ⑪ of the BENNING CM10-PV.
- For a normal silicone diode located in flow direction, the flow voltage between 0.400 V and 0.800 V is displayed. If "000" appears in the display, there may be a short circuit in the diode, "OL" indicates an interruption inside the diode.
- For a diode applied in reverse direction, „OL“ is displayed. If the diode is defective, „000“ or other values are displayed.
see fig. 7: Resistance measurement/ continuity and diode test/ capacitance measurement
8.8 Temperature measurement (switch position ⑧)
- Use the rotary switch 6 to select the required function 8 on BENNING CM10-PV.
- Press the blue key 10 to switch over to °F or °C.
- Connect the temperature sensor correctly to the COM jack COM 14 and jack 15; observe polarity.
- Place the contact point (end of the sensor lead) on the point to be measured. Read the measurement value on the digital display 11 of the BENNING CM10-PV.
see fig. 8: Temperature measurement
8.9 Current measurement with the flexible AC current transformer BENNING CFlex 1 (switch position)
- Use the rotary switch ⑥ to select the required function ⚙ on BENNING CM 10-PV.
- Connect the black safety measuring lead to the COM jack 14 of the BENNING CM 10-PV.
- Connect the red safety measuring lead to the jack + 15 of the BENNING CM 10-PV.
-
Select the 3,000 A (1 mV/A) measuring range at the AC current transformer BENNING CFlex 1.
-
Clamp the single-wire live conductor centrally by means of the flexible measuring loop.
- Read the measurement value displayed in the digital display ⑪.
see fig. 9: Current measurement with the flexible AC current transformer BENNING CFlex 1
8.10 Voltage indicator
The voltage indicator function is not intended for testing the absence of voltage. Even without an indication or acoustic signal, a dangerous contact voltage might be applied. Electrical danger!
- Use the rotary switch ⑥ to select the required function Von BENNING CM10-PV.
- Press and hold the MIN/MAX key ⑨ for 2 seconds to enable the voltage indicator (VoltSense) until the “/” symbol on the digital display ⑪ flashes. Press the MIN/MAX key ⑨ to switch over to Hi (high sensitivity) or Lo (low sensitivity).
- The voltage indicator function does not need any measuring leads (non-contact detection of an alternating field). The detector is located on the top side of the BENNING CM 10-PV. In case of a phase voltage being localized, an acoustic signal is emitted and the red LED ③ on the top side of the device lights. An indication is shown in earthed AC mains only!
Practical hint:
Interruptions (cable breaks) in cables lying around openly such as e.g. cable reels, fairy lights etc. can be traced from the feeding point (phase) to the point of interruption.
Functional range: ≥ 230 V
8.10.1 Phase test
- Connect the black safety measuring lead to the COM jack 14 of the BENNING CM10-PV.
- Connect the red safety measuring lead to the jack + 15 of the BENNING CM10-PV.
- Use the rotary switch ⑥ to select the required function Von BENNING CM10-PV.
- Press and hold the MIN/MAX key ⑨ for 2 seconds to enable the voltage indicator (VoltSense) until the “/” symbol on the digital display ⑪ flashes. Press the MIN/MAX key ⑨ to switch over to Hi (high sensitivity) or Lo (low sensitivity).
- Connect the red safety measuring lead with the measuring point (system part).
- If an acoustic signal is emitted and the red LED ③ lights, the phase of an earthed alternating voltage is applied to this measuring point (system part). see fig. 10: Voltage indicator with buzzer and LED
9. Maintenance
Before opening the BENNING CM 10-PV, strictly observe that the device is free of voltage! Electrical danger!
Working on the opened BENNING CM 10-PV under voltage must be carried out by skilled electricians special precautions for the prevention of accidents only!
Make sure that the BENNING CM 10-PV is free of voltage as described below before opening the device:
- First, remove both safety measuring leads from the object to be measured.
- Then, remove both safety measuring leads from the BENNING CM 10-PV.
- Turn the rotary switch ⑥ to the switch setting "OFF".
9.1 Securing the device
Under certain circumstances, safe operation of the BENNING CM 10-PV might no longer be ensured, e.g. in case of:
- visible damage of the housing,
- incorrect measuring results,
- recognizable consequences of prolonged storage under inadmissible conditions and
- recognizable consequences of extraordinary stress due to transport.
In such cases, immediately switch off the BENNING CM 10-PV, disconnect it from the measuring points and secure it against further use.
9.2 Cleaning
Clean the exterior of the device with a clean dry cloth (exception: special cleaning wipers). Do not use any solvents and/or abrasives to clean the device. Make sure that the battery compartment and the battery contacts are not contaminated by leaking battery electrolyte.
If there are electrolyte contamination or white deposits in the area of the battery or the battery compartment, clean these areas as well by means of a dry cloth.
9.3 Battery replacement
Before opening the BENNING CM 10-PV, strictly observe that the device is free of voltage! Electrical danger!
The BENNING CM 10-PV is supplied by means of two integrated 1.5 V batteries (AA/ IEC LR6). Battery replacement (see fig. 11) is required as soon as all segments of the battery symbol ☐ on the digital display ⑪ have disappeared and the battery symbol is flashing.
Proceed as follows to replace the battery:
- Disconnect the safety measuring leads from the measuring circuit.
- Remove the safety measuring leads from the BENNING CM 10-PV.
- Turn the rotary switch ⑥ to the switch setting "OFF".
- Lay the BENNING CM 10-PV face down and release the screws of the battery compartment cover.
- Lift the battery compartment cover to remove it from the housing.
- Remove the discharged battery from the battery compartment.
- Insert the new batteries into the battery compartment observing correct polarity.
- Place the battery comparment cover onto the bottom part and tighten the screw.
See fig. 11: Battery replacement
Make your contribution for environmental protection! Do not dispose of discharged batteries via the household waste. Instead, return them to a collecting point for discharged batteries or spezial waste. Please look for information in your community's facilities.
9.4 Calibration
Benning guarantees compliance with the technical and accuracy specifications stated in the operating manual for the first 12 months after the delivery date. To maintain accuracy of the measuring results, the device must be recalibrated in regular intervals by our factory service. We recommend recalibrating the device once a year. For this purpose, send the device to the following address:
10. Technical data of measuring accessories
- Standard: EN 61010-031
- Maximum rated voltage (operating voltage) of the BENNING TA PV measuring adapter (item no. 10217846) for test and measuring electrical circuits, which are not directly connected to the mains: 1500 VAC/ 2000 VDC
- Maximum rated voltage to earth ( ± ) and measuring category for test and measuring electrical circuits, which are directly connected to the mains:
Safety measuring lead (part no. 044145)
With push-on caps: 1000 V CAT III, 600 V CAT IV
Without push-on caps: 1000 V CAT II
Maximum rated current: 10 A
BENNING TA PV measuring adapter (item no. 10217846):
With push-on caps: 1000 V CAT III, 600 V CAT IV
Without push-on caps: 1000 VAC CAT II/ 1500 VDC CAT II
- Length: 1.4 m
- Protection class II ( □), continuous double or reinforced insulation
- Contamination class: 2
- Ambient conditions:
Maximum barometric height for measurements: 2000 m
Temperature: 0 °C to + 50 °C, humidity 50 % to 80 %
- Only use the test leads if in perfect and clean condition as well as according
to this manual, since the protection provided could otherwise be impaired.
- Replace the measuring lead if the insulation is damaged or the conductor/connector is interrupted.
- Do not touch the bare contact tips of the measuring leads. Only touch the area behind the grip limit intended for your hands!
- Insert the bent terminals into the testing or measuring device.
11. Environmental note
At the end of product life, dispose of the unserviceable device via appropriate collecting facilities provided in your community.
Notice d'emploi BENNINGCM10-PV
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LOG 2 Sec Press >2Sec LOG V HOLD LOGBluetooth®-interface:
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