MUL-605 - Multimeter Steren - Free user manual and instructions

Product Type	Digital Multimeter
Brand	Steren
Model	MUL-605
Dimensions	Approx. 150 x 70 x 30 mm
Weight	Approx. 200 g (with battery)
Power Supply	9V battery (6F22 or equivalent)
Display	LCD, 2000 counts
DC Voltage Range	200 mV, 2 V, 20 V, 200 V, 600 V
AC Voltage Range	200 V, 600 V
DC Current Range	200 µA, 2 mA, 20 mA, 200 mA, 10 A
AC Current Range	200 µA, 2 mA, 20 mA, 200 mA, 10 A
Resistance Range	200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2 MΩ
Additional Functions	Continuity test, diode test, battery test, transistor hFE test
Basic Accuracy (DCV)	±0.5%
Safety Rating	CAT II 600 V
Fuse Protection	F 250 mA / 250 V (for mA range), F 10 A / 250 V (for 10A range)
Maintenance	Clean with dry cloth; avoid moisture and extreme temperatures
Included Accessories	Test leads, 9V battery, user manual
Warranty	1 year
Repairability	Replaceable battery and fuse; test leads sold separately

Frequently Asked Questions - MUL-605 Steren

How do I measure AC voltage?

Set the rotary switch to ACV (V~) range. Insert black lead into COM jack and red lead into VΩmA jack. Connect probes across the source. Read the display.

How do I measure DC current?

Set the rotary switch to DCA (A---) range. Insert black lead into COM jack and red lead into VΩmA (for lower currents) or 10A jack. Connect the meter in series with the circuit.

How do I test continuity?

Set the rotary switch to the continuity (buzzer) symbol. Insert leads into COM and VΩmA. Touch probes together to verify buzzer sounds, then test the circuit.

What does 'OL' on the display mean?

OL stands for Over Load. It indicates the measurement exceeds the selected range. Switch to a higher range or check the input signal.

How do I replace the battery?

Remove the meter from test leads. Turn off the meter. Remove the battery compartment screw on the back. Replace the 9V battery with a new one, observing polarity. Reattach the cover.

What safety precautions should I take?

Always start with the highest range when measuring unknown voltages. Do not exceed 600V relative to ground. Use proper test leads and inspect them for damage. Remove test leads before changing functions.

How do I test a diode?

Set the rotary switch to the diode symbol. Insert black lead into COM and red lead into VΩmA. Connect red to anode and black to cathode. Forward voltage drop (typical 0.4-0.7V) indicates a good diode.

Can I measure temperature with this multimeter?

No, the MUL-605 does not include a temperature measurement function. Use a dedicated thermometer or a multimeter with a thermocouple.

How do I use the hold function?

Press the HOLD button to freeze the current reading on the display. Press it again to release. This helps capture fluctuating values.

What is the maximum input voltage for the resistance range?

Do not apply any voltage when using the resistance function. The internal voltage is low (< 3V). Applying voltage can damage the meter.

USER MANUAL MUL-605 Steren

Technical line drawing of a mechanical device with a red curved arrow indicating rotation or motion (no text or symbols present)

Line drawing of a device with a wall socket and a separate electrical outlet (no text or symbols)

CONEXIÓN A PC

STEREN PRODUCTO EMPACADO S.A. DE C.V.

Before to use the product, please read carefully this manual to avoid any malfunction. The info in this manual is shown as reference. Due to updates can exist differences. Consult our website www.steren.com to obtain the current version of this manual.

CAUTIONS

- The inappropriate use of this multimeter may cause damages, shock hazard or severe injuries.

• Always remove the test cables before to replace the batteries or fuse.

- Check the status of the test cables or the meter before to use it.

- Don't measure voltage that exceed 1000V over fisic ground; may be dangerous.

- Be careful when you take measures over 30 VCA RMS o 60V DC; this voltages may cause shock hazard.

• Always discharge the capacitors and cut the power of the device before to make diode test, resistance or continuity.

- To avoid damages in the meter, do not exceed the maximum limits of the input values that is shown in the specifications.

- Remove the batteries, in case the device won't be used for long periods of time

• This product is NOT a toy: keep it away from children.

- This device cannot be used by people with different abilities, unless they have preparation and supervision.

INDEX

DESCRIPTION 30

Parts 30

Selector knob 32

Symbols in the screen 33

BATTERY PLACEMENT 34

HOW TO USE 35

Voltage measuring 35

Current measuring 36

Resistance measuring 37

Diode test 37

Continuity testing 38

Capacitance measuring 38

Frequency measuring 39

Temperature measuring 39

Non-contact voltage detection (NCV) 40

PC CONNECTION 41

Software installation 41

Driver installation 42

Software use 42

ANOTHER FUNCTIONS 44

MEASURING SPECIFICATIONS 45

Direct current voltage 45

Alternating current voltage 45

DC current 46

AC current 46

Resistance 47

Diode and Continuity 47

Temperature 47

Frequency 48

Capacitance 48

DESCRIPTION

Parts

Test cables (red and black)

Selector knob

Symbol Function
OFF Off
≈ V	Direct current and Alternating current voltage in volts
≈ mV	Direct current and Alternating current voltage in mili volts
NCV Non-contact voltage detection
○)	Continuity
+	Capacitance
+	Diodes
Ω	Resistance
Hz Frequency
°C Temperature in cent	grades
°F Temperature in Fahrenheit
μA ≈	Direct current and Alternating current in micro ampers
mA ≈	Direct current and Alternating current in mli ampers
A ≈	Direct current and Alternating current in ampers

Symbols in the screen

1 PC connection

2 Auto-range active

3 Diodes test

4 Continuity

5 Data hold

6 Relative mode

7 Battery status

8 Retention of minimum value

9 Retention of maximum value

10 Auto-off

11 Duty cycle measuring

12 Degrees: Celsius / Fahrenheit

13 Transistors measuring

14 Resistance unity: Kilo ohms / mega ohms / ohmsFrequency unity: Kilo hertz / mega hertz / hertz

15 Voltage unity: Volts / mili voltsCurrent unity: Micro amper / mili amper / amperCapacitance unity: micro faradio / mili faradio / faradio

16 Alternating current

17 Direct current

18 Non-contact voltage detection

BATTERY PLACEMENT

Ensure that the polarity is right.

Diagram of a device interior with a red curved arrow indicating rotation or movement, showing no text or symbols.

If the - + symbol appears in the screen, means that the battery should be replaced.

HOW TO USE

The high voltage circuits, such as AC and DC, are very dangerous; they must be measured with cautions.
To avoid shock hazard or damage in the meter, performs measures higher than 1 000 VDC or 750VAC RMS.

Voltage measuring

1. Turn the knob to select the voltage type that you want to measure: ≈ V ≈ mV
2. Insert the black connector into the COM terminal; insert the red connector into terminal.
3. Touch with the black tip in the negative side of the circuit; touch with the red tip in the positive side of the circuit.

Press FUNC to change to AC.

Current measuring

Never try to measure current when the voltage between the open circuit and the ground is higher than 250V.
Never place the test cables in parallel with a circuit or component when they are connected to the terminals.

1. Remove the power supply and discharge the capacitors of the circuit.
2. Adjust the knob to current measuring range A / mA / A .
3. Insert the black connector into the COM terminal.

To make a measuring under than 400 mA insert the red connector into A_mA terminal; to measure between 400 mA and 10 A insert it in A terminal.

1. Open the circuit. Connect the tips in the circuit in a way the current to flow through of multimeter (serial connection).
2. Activate the energy in the circuit again.

Press FUNC to change to AC.

Resistance measuring

Ensure that the circuits haven't energy and the capacitors is discharged to avoid electrical hazard or damages in the equipment.

1. Set the knob in position.
2. Press the FUNC button until the symbol (Ω / kΩ / MΩ) appears in the screen.
3. Insert the black connector into the COM terminal; insert the red connector into terminal.
4. Touch the circuit with the tips.

Diode test

Be sure that the circuits have not energy and the capacitors are completely discharged to avoid hazard shock or damages in the equipment.

1. Set the knob in position.
2. Press the FUNC button until the symbol → appears in the screen.
3. Insert the black connector into the COM terminal; insert the red connector into ^V ^+C^+F^- 1Hz terminal.
4. Connect the tips to the semiconductor component: the red to anode and the black to cathode.

Continuity testing

1. Set the knob in position.
2. Press the FUNC button until the symbol 🔊 appears in the screen.
3. Insert the black connector into the COM terminal; insert the red connector into VΩ → °C°F-1Hz terminal.
4. Touch with the tips the circuit or wire that you want to check.

The resistance value will shown in the screen, if the resistance is lower than 30 , the signal will be audible.

Capacitance measuring

Before to make the measuring, ensure that the capacitor is disconnected from any circuit.

1. Set the knob in _^* position.
2. Press the FUNC button until the symbol (n F) appears in the screen.
3. Insert the black connector into the COM terminal; insert the red connector into terminal.
4. Touch the circuit with the tips.

Frequency measuring

To avoid electrical hazard or damages in the multimeter, do not measure frequencies in high voltages (>250V)

1. Set the knob in Hz position.
2. Insert the black connector into the COM terminal; insert the red connector into terminal.
3. Touch the circuit with the tips.
4. Press to measuring the work duty.

Temperature measuring

To avoid shock hazard, do not measure temperature if the input voltage exceed 36 V DC or 36 V AC RMS.

1. Set the knob in °C / °F position.
2. Press the FUNC button to choose the unity temperature
   °C = Centigrades
   °F = Fahrenheit
3. Insert the black connector into the COM terminal; insert the red connector into terminal.
4. Touch with the adapter the piece where you want to measure the temperature; keep the contact until the measure is stabilized.

Non-contact voltage detection (NCV)

1. Set the knob in NCV position.
2. Near the top of the multimeter to the equipment or component that you want to check (wire, contact, socket).

In case of voltage detection, the indicator LED will flash and the equipment will emit an audible signal

The circuit design, the insulation thickness and others variables may cause interference in the detection

The interference sources, as lanterns, engines may cause wrong detection

Line drawing of a washing machine next to an electrical outlet (no text or symbols)

PC CONNECTION

The showed software is not property of Steren; the company is not responsible by the working or updates.

The showed images correspond to a PC with Windows 10. The install process and the working may vary in accord with the OS version used.

Software installation

1. Insert the CD of installation, search and execute the Setup file.
2. If is necessary give installation permissions, click Next.
3. You must accept the terms and conditions. Click Next.

1. Click Next in the followed windows until finish the installation process.

Driver installation

1. Turn on the multimeter and connect it to a PC.
2. Press RELEASE for a few seconds to establish the connection.
3. In the folder CP210x_Windows_Drivers select the corresponding driver to the PC featurings. Twice click to install it.

x64	04/05/2016 07:42 ...	Carpeta de arc
x86	04/05/2016 07:42 ...	Carpeta de arc
CP210xVCPinstaller_x64	28/03/2016 08:38 ...	Aplicación
CP210xVCPInstaller_x86	28/03/2016 08:38 ...	Aplicación
dpinst	28/03/2016 08:32 ...	Documento XM
SLAB_License_Agreement_VCP_Windows	28/03/2016 08:32 ...	Documento de

Software use

1. With the multimeter on and connected, twice click in the direct access created in the desktop.

1. Click START to check the connection and visualizing continuous measurements. Select STOP to finish the measurements.

ANOTHER FUNCTIONS

Relative mode

Allows to measure in relations with a value of stored reference. The visualized value is the difference between the value of reference and the measured value.

Auto-off

If the multimeter remains turn on for 15 minutes without working, it will enter in stand by status and will off to save energy

Max / min reading

Press once to hold in screen the maximum reading (MAX) or minimum (MIN). This reading will be updated when is recorded a new value max or min.

HOLD

After to a measure, press once to hold the reading in the screen.

Background light

Press to turn on the light of the screen.

MEASURING SPECIFICATIONS

Direct current voltage

Range Resolution Accuracy
40mV/60mV 0.01mV
400mV/600mV 0.1mV
4V/6V 0.001V
40V/60V 0.01V
400V/600V 0.1V
1000V 1V ±(1.8% reading)

Input impedance: 10MΩ; Maximum input voltage: 1000V DC

Alternating current voltage

Range Resolution Accuracy
40mV/60mV 0.01mV ±(1.0% reading)
400mV/600mV 0.1mV ±(1.0% reading)
4V/6V 0.001V
40V/60V 0.01V
400V/600V 0.1V
750V 1V ±(1.0% reading)

Input Impedance: 10MΩ / Maximum Input Voltage: 750VAC RMS / Frequency Range: 40-1000 Hz

DC Current

Range Resolution Accuracy
400μA /600μA 0.1μA
4mA/6mA 0.001mA
40mA/60mA 0.01mA
400mA/600mA 0.01mA
4A/6A 0.001A
10A 001mA

Input Impedance: 10MΩ / Maximum Input Voltage: 750V AC RMS

AC Current

Range Resolution Accuracy
400μA /600μA 0.1μA
4mA/6mA 0.001mA
40mA/60mA 0.01mA
400mA/600mA 0.01mA
4A/6A 0.001A
10A 001mA

Overload protection: FF500mA / 1000V fuse for mA range; Fuse FF10A / 500V to 10A Frequency range: 40 \~ 1000Hz

Resistance

Range Resolution Accuracy
400kΩ/600kΩ 0.1 kΩ ±(1,0% lectura)	±(0.8% reading)
4kΩ/6kΩ 0.001 kΩ
40kΩ/60kΩ 0.01 kΩ
400MΩ/600kΩ 0.1 kΩ
4MΩ/6MΩ 0.001 MkΩ
40MΩ/60MΩ 0.01 MkΩ ±(1.2% reading)

Overload protection: 250V DC or 250V AC RMS

Diode and continuity

Range Function
	Approx voltage of diode
	The alarm will emit a sound if the resistance is lower than to 30Ω

Temperature

Range Resolution Accuracy
-20 °C ~ 400 °C	1°C	±(2.0% reading)
-400 °C ~ 1000 °C
0 °F ~ 752 °F 0,01 kΩ	1°F	±(2.0% reading)
752 °F ~ 1832 °F

Overload protection: 250V DC or 250V AC RMS

Frequency

Range Resolution Accuracy
10Hz 0.01Hz ±(1,0% lectura)	±(0.5% reading)
100Hz 0.1Hz
1kHz 0.001kHz
10 kHz 0.01kHz
100kHz 0.1 kHz
1MHz 0.001MHz
10MHz 0.01MHz

Overload protection: 250V DC or 250V AC RMS

Capacitance

Range Resolution Accuracy
10nF 0.01nF ±(1,0% lectura)	±(4.0% reading)
100nF 0.1nF
1μF 0.001μF
10μF 0.01μF
100μF 0.1μF
1mF 1μF	±(5.0% reading)
10mF 10μF
100mF 100μF

Overload protection: 250V DC or 250V AC RMS

SPECIFICATIONS

Input: 9V --- (square battery)

DC voltage range: 60mV – 1 000V

AC voltage range: 60mV – 750V

Resistance: 600-60Mohms

AC current range: 600 uA – 10A

DC current range: 600 uA – 10A

Capacitance range: 10nF-100mF

Frequency range: 10Hz-10MHz

Temperature range: 0-1 000°C

Operating temperature: 0-40 °C

Storing temperature: -10 to 60°C

Consumption: 0.1mW/h

Stand-by power consumption: Not applicable

Specifications may change without notice

STEREN

Product: USB professional digital multitester

Number part: MUL-605

Brand: Steren

This Steren product is warranted under normal usage against defects in workmanship and materials to the original purchaser for one year from the date of purchase.

CONDITIONS

1. This warranty card with all the required information, invoice or purchase ticket, product box or package, and product, must be presented when warranty service is required.
2. If the product is in the warranty time, the company will repair it free of charge.
3. The repairing time will not exceed 30 natural days, from the day the claim was received.
4. Steren sell parts, components, consumables and accessories to customer, as well as warranty service, at any of the addresses mentioned later.

THIS WARRANTY IS VOID IN THE NEXT CASES:

If the product has been damaged by an accident, acts of God, mishandling, leaky batteries, failure to follow enclosed instructions, improper repair by unauthorized personnel, improper safe keeping, among others.

a) The consumer can also claim the warranty service in the purchase establishment.
b) If you lose the warranty card, we can reissue it, if you show the invoice or purchase ticket.

RETAILER INFORMATION

Name of the retailer

Address

Product

Brand

Serial number

Date of delivery

In case your product fails or have questions, please contact your nearest dealer. If you are in Mexico, please call to our Call Center.

01 800 500 9000

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STEREN