sauermann 50 Serie Guía Rápida página 2

Quick Start Guide
English
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
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
• Available units for MP 51: mmH
• 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.
Select
0, kPa, in Wg, mbar, mmHg, daPa.
2
On/Off/Hold
0, inWg, daPa.
2
Sensing
element
(velocity)
Sensing
element
(temperature)
Protection tube
of the sensing
element (1)
Redpoint: landmark
Airflow direction
Bottom of the
hotwire probe