Service And Maintenance; Calibration Frequency; Visual Inspection; Condensation Prevention Packet - Teledyne 700 IR Series Instruction Manual

5

Service and Maintenance

5.1

Calibration Frequency

Gas detectors are safety devices. TELEDYNE OLDHAM SIMTRONICS recommends the regular
testing of fixed gas detection installations. This type of test consists of applying calibration gas at
a sufficient concentration to trigger the pre-set alarms. It is to be understood that this test is in no
way a replacement for a detector calibration. The bump tests frequency depends on the
application. Upon initial installation and commissioning, close frequency tests should be
performed, weekly to monthly. Test results should be recorded and reviewed to determine a
suitable calibration interval; however, it must not exceed one year. The general manager should
put safety procedures in place on-site. TELEDYNE OLDHAM SIMTRONICS cannot be held
responsible for their enforcement.
5.2

Visual Inspection

The Detector should be inspected annually. Inspect for signs of corrosion, pitting, and water
damage. During visual inspection, the Splash Guard should be inspected to insure that it is not
blocked. Examine the porous 316SS flame arrestor within the detector's bottom housing for signs
of physical blockage or severe corrosion. Also, inspect inside the Junction Box for signs of water
accumulation or Terminal Block corrosion.
5.3

Condensation Prevention Packet

A moisture condensation packet should be installed in every explosion proof Junction Box. The
moisture condensation prevention packet will prevent the internal volume of the J-Box from
condensing and accumulating moisture due to day-night humidity changes. This packet should be
replaced annually. Teledyne Oldham Simtronics's PN is DET-960-202200-000.
NP700IRIMEN
Revision E.0
INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO
700 IR Series
2
GASES
USER MANUAL
35