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REPLACEMENT PARTS
The PIRVOLHV is not designed to be repaired in the field.
If a problem should develop, refer to the Troubleshooting
section. If it is determined that the problem is caused by
an electronic defect, the device must be returned to the
factory for repair.
DEVICE REPAIR AND RETURN
Prior to returning devices, contact the nearest local
Detector Electronics office so that a Return Material
Identification (RMI) number can be assigned.
a
written statement describing the malfunction must
accompany the returned device or component to
assist and expedite finding the root cause of the
failure.
Pack the unit properly. Always use sufficient packing
material. Where applicable, use an antistatic bag as
protection from electrostatic discharge.
NOTE
Det-Tronics reserves the right to apply a service
charge for repairing returned product damaged as
a result of improper packaging.
Return all equipment transportation prepaid to the factory
in Minneapolis.
NOTE
It is highly recommended that a complete spare
be kept on hand for field replacement to ensure
continuous protection.
Table 3—Calibration Sequence
Description
Current
LED
Operator action
Normal operation/no gas present
4.0 mA
Off
If the possibility of background gases exists,
purge the sensor with clean air to ensure accurate
calibration.
Initiate calibration
2.2 mA
On steady
Initiate the calibration sequence by holding the
calibration magnet against the side of the termination
box or activating the external calibrate pushbutton for
one second.
Zero calibration complete
2.0 mA
Flashing
Re-apply magnet (or activate switch) for one second.
Span calibration is not required. Device will revert to
live operation using new zero level and original span
level from factory calibration.
Calibration fault indication
1.6 mA
Off
See Troubleshooting Table.
NOTE: Failure to re-apply magnet to set zero level will result in Fault status if span gas is not applied. Span gas is typically
applied at the factory only.
