Pid Bulb - Cal Now; Verifying Pump Operation - MSA SIRIUS Manuel D'instructions

3 Using the SIRIUS Multigas Detector
3.8.1 PID Bulb – Cal Now
This message may appear in the event that the instrument detects a potential problem
with the output of the PID sensor. When this occurs, the best course of action is to clean
the PID bulb (see 7.3 Removing and Cleaning the PID Bulb). This message is not a
replacement for daily bump checks.
WARNING!
If a Sensor Missing, PID Error, Ion Error, PID Failed Span Cal, or PID Comm condition
occurs, stop using the instrument; it can no longer alert you of potential hazards.
1. Leave the area immediately.
2. Turn OFF the instrument if it is ON.
3. Report to the person responsible for maintenance.

3.9 Verifying Pump Operation

1. Turn ON the SIRIUS Multigas Detector.
• The pump motor starts fast and then slows down as the instrument adjusts the
power to run the pump.
2. Once gas readings are displayed, plug the free end of the sampling line or probe.
• The pump motor shuts down and an alarm sounds
• PUMP ALARM will flash on the display
• The readings on the display may change.
3. When the pump inlet, sample line or probe is blocked, the pump alarm must activate.
If the alarm does not activate:
a. Check the sample line and probe for leaks.
b. Once leak is fixed, recheck pump alarm by blocking the flow.
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Figure 6:
PUMP/ALARM
flashing on the display