Retailer; Functional Principle - Wohler TI 410 Bedienungsanleitung

Functional principle

1.8

Retailer

2 Functional principle
The dew-point indicator shows exhaust gas build-up. Exhaust gas that has been built up
is characterised by an increased humidity and temperature relative to the ambient air. A
possibly likewise presence of CO content has a strong toxic effect, which is why exhaust
gas build-up can be highly dangerous.
To provide a sure detection, the measurement is effected via two independent sensors:
1. measurement of the surface resistance of the sensor plate
2. measurement of the temperature
When a pre-determined resistance of the sensor plate is undercut, an optical and an
acoustic signal is emitted.
The increased temperature of the outflowing exhaust gas is recognized by the fast-
reacting temperature sensor, which is located in a protective position in a hole at the end
of the sensor plate.
For to adapt to the different ambient conditions, the operator can adjust the sensitivity in
four different steps. To attain a high battery life, the instrument switches off automati-
cally after four minutes, when no key has been pressed.
Wöhler Messgeräte Kehrgeräte GmbH
Schützenstr. 41
D-33181 Bad Wünnenberg
Tel.: +49 2953 73-100
Fax: +49 2953 73-250
E-Mail: mgkg@woehler.com
Service-Hotline:
+49 2953 73-211
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