CO 50 - Measuring equipment Sauermann - Free user manual and instructions

Product type	Portable carbon monoxide detector
Brand	Sauermann
Model	CO 50
Category	Measuring equipment
Main function	Measurement of CO concentration in air
Sensor	Electrochemical with 5-second preheating
CO measurement range	Not specified in the manual
Power supply	2 AAA LR03 1.5 V batteries
Protection rating	IP54
Operating temperature	0 to +50 °C
Storage temperature	-20 to +80 °C
Operating humidity	Non-condensing
Maximum altitude	2000 m
Display	LCD screen
Buttons	Selection, On/Off/Hold
Hold function	Freeze measurement
Unit change	Possible by long press on Selection
Auto power-off	After 20 minutes of inactivity
Battery replacement	Battery compartment at the back
Safety	Risk of explosion if incorrect batteries
Recycling	Device, accessories and batteries recyclable
Included accessories	Not specified
Warranty	Not specified

Frequently Asked Questions - CO 50 Sauermann

How to turn on the CO 50 detector?

Briefly press the 'On/Off/Hold' button. The device displays its name then performs a 5-second preheating countdown before displaying the CO measurement.

How to freeze a measurement?

Briefly press the 'On/Off/Hold' button during measurement. 'Hold' appears and the measurement is frozen. Press again to exit.

How to change the CO measurement unit?

Long press the 'Selection' button until the unit flashes, then briefly press to choose the desired unit. Confirm with another long press.

What to do if the device displays '---'?

This means the measurement is below the minimum range. For CO, it indicates a very low or zero concentration.

What is the recommended storage temperature?

From -20°C to +80°C. If the device has been stored outside its operating range (0-50°C), wait 10 minutes before using it.

How to change the batteries?

Turn off the device, open the battery compartment at the back, replace the used batteries with AAA LR03 1.5 V batteries, then close the compartment.

Does the device turn off automatically?

Yes, after 20 minutes of inactivity.

What does the 5-second countdown at startup mean?

It is the preheating time of the CO sensor. Wait for the countdown to end for a reliable measurement.

What is the protection rating of the CO 50?

IP54, which protects against water splashes and dust.

How to know if the device is working correctly?

Turn it on, wait for preheating, then check that the displayed measurement is consistent with the environment. For a specific self-test, refer to the manual.

USER MANUAL CO 50 Sauermann

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CLASS 50 PORTABLES

CO 50, CT 50, HD 50, HM 50, LV 50, LX 50, MP 50, MP 51, MP 55, VT 50

Quick Start Guide

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Quick Start Guide

Class 50 portables

These portable instruments are used to measure the following parameters: temperature, relative humidity, CO, pressure, air velocity and light.

1. Operating temperature, protection of the instruments and information about storage

Conditions of use (°C/%RH/m): from 0 to +50 °C. In non-condensing conditions. From 0 to 2000 m.

Protection: IP54

Storage temperature: HD 50, LX 50: from -20 to +70 °C. CT 50, CO 50, HM 50, LV 50, MP 50, MP 51, MP 55, VT 50: from -20 to +80 °C. If the instrument is stored outside the operating temperature (for example in a van, a warehouse...), please wait for 10 minutes in its operating temperature before start using it.

1. Keys

Select

On/Off/Hold

2. Take a measurement

VT 50: before using the instrument with the hotwire probe, please lower the protection tube (1) of the sensing element.

VT 50: always use the hotwire probe with the red point in front of flow.

Switch on the instrument by pressing briefly on "On/Off/Hold".

The instrument displays its name then the measurement.

Sensing element (temperature) Sensing element (velocity) Airflow direction Protection tube of the sensing element (1) Redpoint: landmark Bottom of the hotwire probe

CO 50: the instrument displays its name then a 5 second countdown. This count corresponds to the preheating time of the sensor. At the end of the countdown, the measured value of CO is displayed.

MP 50, MP 51: the instrument displays its name then an autozero is performed. At the end of the autozero, the measured value displays.

Press briefly on "Select" to switch measurement parameter display.

MP 50, MP 51, MP 55: press briefly and successively on "Select" to change the unit.

• Available units for MP 50: Pa, mmH 2 O, inWg, daPa.
• Available units for MP 51: mmH 2 O, kPa, in Wg, mbar, mmHg, daPa.
• Available units for MP 55: mbar, mmHg, hPa.

HM 50: press briefly on "Select" to select a type of material.

Press the spikes in the material to be measured.

When a measurement is over-range, above the maximum range, the value flashes.

Below the minimum range, the value is no more measurable and the device indicates "---", it means that for:

• Wood type 1: the measurement is < than 10%
• Wood type 2: the measurement is < than 9%
- Plaster, brick and concrete: the measurement is < than 0.1%

3. Carry out a manual autozero (MP 50, MP 51)

During measurement:

Remove pressure tubes. Carry out a long press on "Select".

The instrument makes an autozero then returns to the measurement display.

4. Hold the measurement

During measurement, press briefly on "On/Off/Hold" to hold measurement: "Hold" appears on the screen and measurements are fixed.

CO 50, HD 50, HM 50, LX 50, MP 55, VT 50: press briefly on "Select" to move from one parameter to the other.

Press again briefly on "On/Off/Hold" to exit the Hold function.

6. Change the unit

The instrument is on.

CO 50, CT 50, HD 50, LX 50:

Carry out a long press on "Select" to change the unit.

Press briefly on "Select" to select the required unit of measurement.

Carry out a long press on "Select" to confirm the unit and return to the normal measuring mode.

VT 50:

Change the air velocity unit:

Press briefly on "Select" up to display the air velocity.

Carry out a long press on "Select" to change the air velocity unit.

Press briefly on "Select" to select the required unit of measurement.

Carry out a long press on "Select" to confirm the unit and return to the normal measuring mode.

Change the temperature unit:

Press briefly on "Select" up to display the temperature.

Carry out a long press on "Select" to change the temperature unit.

Press briefly on "Select" to select the required unit of measurement.

Carry out a long press on "Select" to confirm the unit and return to the normal measuring mode.

7. Select the velocity type: contact or optical (CT 50)

The instrument is on.

Carry out a long press on "Select": "Cont" or "Optic" flashes.

Press briefly on "Select" to select contact velocity ("Cont") or optical velocity ("Optic").

Carry out a long press on "Select" to confirm.

8. Perform a self-test (HM 50)

Turn the instrument on. Remove the cap and turn the cap.

Press "Select" to select the type of material to verify.

Press the 2 pins of the instrument into the contact plugs of the cap.

Read the value indicated by the instrument:

- If the indicated value matches with the given value in the table below, the instrument runs properly.

- If the indicated value does not match with the given value in the table below, clean the tips and carry out a new self-test. If the value is still wrong, change the pins. If it does not work, please contact the after sales service.

Resistance	Material
	Wood type 1 Wood type 2 Plaster Brick and concrete
1 MΩ 30.8% ±1% 27.5% ±1% 4.6% ±1% 5.2% ±1%

Materials humidity

Wood

Moisture content	State of the wood
< 15% Dry
From 15 to 30% Moist
> 30% High moisture

Plaster

Moisture content	State of the plaster
< 2% Dry
From 2 to 4% Moist
> 4% High moisture

Brick and concrete

Moisture content	State of the brick/concrete
< 2% Dry
From 2 to 4% Moist
> 4% High moisture

HMI 501 4.5 Hz H3

9. Batteries replacement

The instrument is OFF.

Remove the front part at the back of the instrument.

Replace used batteries by new batteries AAA LR03 1.5 V.

Replace the front.

To ensure safety, replace batteries with the same type.

Not doing so might lead to explosion. Dispose of used batteries according to instructions.

10. Auto shut-off

The instrument switches off if it is not used during 20 minutes.

Guide rapide

Portables classe 50

HMI 4.5 Hz H3 HMI 50

HMI 501 4.5 Hz H3

9. 更换电池

更换电池前, 先关闭设备。

拆除背部的电池盖板。

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