Teledyne PS200 Series, Operation & Maintenance Manual, Page: 37 / 58

PS200
PORTABLE GAS MONITOR
WARNINGS & FAULTS
64171, Rev. 11/December 2019 5-3
5. 3 .2. ZERO FAULT – DURING OPERATION
If ZERO FAULT is displayed during instrument operation, then:
• Leave the monitor ON for 30-60 minutes
• Switch OFF then ON
• If ZERO FAULT persists, recalibrate the monitor
• If ZERO FAULT still persists, return the monitor to an approved service/repair facility
5. 4 . Sensor Faults
If a sensor fault is detected, the backlight illuminates red, audible/visual alarms are activated, and a
wrench symbol is shown next to the faulty sensor.
5. 4 .1. SENSOR FAULT - LEL OR O
2
If a sensor fault is detected for LEL or O
2
, as illustrated in Figure 5-6: LEL SENSOR FAULT , return
the monitor to an approved service/repair facility.
Figure 5-6: LEL SENSOR FAULT
5. 4 .2. SENSOR FAULT - CO OR H
2
S
If a sensor fault is detected for CO or H
2
S, as illustrated in Figure 5-7: CO/H
2
S SENSOR FAULT ,
allow the monitor to run in clean air for 20 minutes. If the fault persists, return the monitor to an
approved service/repair facility.
Figure 5-7: CO/H
2
S SENSOR FAULT
5. 5 . Flow Fault (Pumped Monitors Only)
If a sample fault exists, the monitor displays a FLOW FAULT warning, as shown in Figure 5-8:
FLOW FAULT . The display will be red and both the audible alarm and red LED’s will be activated.