Drawing Number: 21113
Revision: A
OPERATION MANUAL FOR
ICP
®
HIGH PRESSURE SENSORS
Series 108 & 109
5
5.0
OPERATION
Select desired mode of circuit connection and turn
power unit on.
Observe fault monitor meter at the front panel of the
power unit.
Normal operation is indicated by an approximate
midscale reading. Shorted cable or connections are
indicated by a zero reading (red area).
Open cable or connections are indicated by a full-
scale (yellow area) reading.
Allow instrument several minutes to warm up and
thermally stabilize.
When output from the power unit is connected to
readout equipment, a drift in the voltage signal will
be noticed; this is normal. This voltage signal drift is
caused by the charging of the coupling capacitor in
the power unit and will cease within several minutes.
6.0
POLARITY
The 108 & 109 Series are designed to produce a
positive output voltage for increasing pressure at the
diaphragm.
7.0
MAINTENANCE
The small size and sealed construction of the 108 &
109 Series precludes field maintenance and repair.
Contact the factory for further assistance.
ICP
®
is a registered trademark of PCB Piezotronics