sauermann LV 50 Portable Handheld Thermo Anemometer User Guide
- June 13, 2024
- sauermann
Table of Contents
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
LV 50 Portable Handheld Thermo Anemometer
Class 50 portables
These portable instruments are used to measure the following parameters:
temperature, relative humidity, CO, pressure, air velocity and light.
- 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.
Keys
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, mmH2 0, inWg, daPa.
- Available units for MP 51: mmH2 0, 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%
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.
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.
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.
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.
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 |
| 1 MΩ | 30.8% ±1% |
Materials humidity
| Wood | plaster | Brick and concrete |
|---|---|---|
| Moisture content | State of the wood | Moisture content |
| Moisture content | State of the brick/concrete | |
| < 15% | Dry | < 2% |
| From 15 to 30% | Moist | From 2 to 4% |
| > 30% | High moisture | > 4% |
Replace the batteries
The device is turned off.
Open the battery door located on the back of the device.
Replace old batteries with AAA LR03 1.5 V batteries.
Replace the battery door.
There is a risk of explosion if batteries are replaced with batteries of the
incorrect type.
Dispose of used batteries according to the instructions.
Self-extinguishing
The device automatically turns off after 20 minutes of non-use.
Download the data sheet
Sauermann UK
Units 7-9, Trident Business Park Amy Johnson Way
Blackpool – FY4 2RP
T. +44 (0) 870 950 6378
F. +44 (0) 870 950 6379
info.uk@sauermanngroup.com
Customer service portal
Use our Customer service portal to contact us
https://sauermann-en.custhelp.com
Test Equipment Depot – 800.517.8431
–TestEquipmentDepot.com
QSG – Class 50 portables – 07/10/22 – Non-contractual document
We reserve the right to modify the characteristics of our products without
prior notice
Documents / Resources
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