Vaisala PR-23 Series User Manual

4. Hold down the decimal point key until the DTR has started completely and you see the
main displa
y.
The reset on the display language is temporary and the language returns to original
ne
xt time the DTR is powered o, except if the language is permanently changed
through the display settings menu.
9.1.4 Troubleshooting messages
Table 9 Hardware troubleshooting
Problem Cause Corrective action
Message NO SENS
OR The current in the cable to this
sensor is below 20 mA. Normally
this means that there is no sensor
connected to the cable or that
there is no cable to the DTR. If this
message comes up while a sensor
properly is connected, the most
likely cause of this message is a
fault in the sensor. It is also
possible that the cable is totally
dead for example if it is
accidentally cut through.
See also Diagnostic LED LD1/LD3,
Diagnostic LEDs (page 89). The
concentration display is a dashed
line.
Message NO SIGNAL
Besides the mes
sage, the
concentration display is a dashed
line although a sensor is
connected.
The current in the cable to this
sensor is in the correct range
20 … 60 mA, but no data is coming
in from the sensor. This indicates
that the Sensor processor card is
faulty.
See also Diagnostic LED LD1/LD3,
Diagnostic LEDs (page 89).
Replace the sensor processor card.
PR-23 Series User Guide
IM-EN-PR23-E
92

Vaisala PR-23 Series Specifications

General

Brand	Vaisala
Model	PR-23 Series
Category	Measuring Instruments
Language	English