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

Brand	Sauermann
Model	CT 50
Product type	Portable multifunction measuring device
Category	Measuring equipment
Protection rating	IP54
Operating temperature	0 to +50 °C
Storage temperature	-20 to +80 °C
Maximum operating altitude	2000 m
Power supply	2 AAA LR03 1.5 V batteries
Battery life / Auto-off	20 minutes of inactivity
Main functions	Measurement of temperature, relative humidity, CO, air speed, pressure, light
Measurable speed type	Contact (Cont) or Optical (Optic)
Hold (freeze measurement)	Yes
Manual autozero	Yes (on MP 50, MP 51)
Unit change	Yes (depending on model)
HM 50 self-test	Via cap with contact pads
Out-of-range display	Flashing above, "---" below
Maintenance and cleaning	Clean the tips if necessary, replace used batteries
Safety	Risk of explosion if incorrect battery type, follow recycling instructions
Included accessories	Hot wire probe (VT 50), self-test cap (HM 50), pressure tubes (MP 50/51)
Repairability	Spare parts available (tips, batteries), prioritize repair and donation
Approximate weight	200 g (with batteries)
Dimensions (L x W x H)	180 x 70 x 35 mm

Frequently Asked Questions - CT 50 Sauermann

How to turn the CT 50 on and off?

Press the On/Off/Hold button briefly to turn it on. To turn off, press and hold the same button or wait for auto-off after 20 minutes of inactivity.

How to freeze a measurement on the screen?

Briefly press the On/Off/Hold button during a measurement. The screen displays Hold and the value is frozen. Press again to return to normal mode.

How to change the measurement unit on the CT 50?

Turn on the device, press and hold the Select button until the unit flashes. Use short presses to choose the desired unit, then press and hold to confirm.

How to choose between contact and optical speed on the CT 50?

Turn on the device, press and hold Select. Cont or Optic flashes. Press briefly to switch, then press and hold to confirm.

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

This means the measurement is below the minimum range. For example, for the HM 50 moisture meter, this corresponds to < 10% for wood type 1, < 9% for wood type 2, and < 0.1% for plaster, brick, and concrete.

How to perform manual autozero on MP 50/51?

Remove the pressure tubes, then press and hold the Select button. The device performs an autozero and returns to the measurement display.

What batteries to use and how to replace them?

Use two AAA LR03 1.5 V batteries. Open the battery compartment at the back, replace the used batteries, then close the compartment. Caution: do not use other battery types (risk of explosion).

How to test the HM 50 moisture meter's proper functioning?

Remove the cap and turn it over. Press Select to choose the material type, then place both tips on the cap's contact pads. The displayed value should correspond to the reference resistance (e.g., 1 MΩ gives 30.8% for wood type 1). If different, clean the tips.

What to do if the device does not turn on?

Check that the batteries are correctly installed and not used. If the problem persists, clean the battery contacts or replace them.

Where to find the complete manual for the CT 50?

The manual is available for free download on the notice-facile.com website in the section dedicated to the Sauermann CT 50 model.

USER MANUAL CT 50 Sauermann

Abstract geometric network diagram with interconnected nodes and lines (no text or symbols)

Five black-and-white photo displays of thermoseters with digital displays and a humidity gauge, arranged in a row (no visible text or labels)

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.

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

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

9. Cambio de pilas

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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