Honeywell MultiRAE Series User Manual

Stall Low Threshold Setting - Static
In Diagnostic Mode, press the [MODE] key until the “Pump” screen is displayed. Shown are the
Stall High and Stall Low values. “Low” should be highlighted. Press [Y/+] to select the Stall Low
(low-speed) value.
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The Idle (shown as a value for “I”) value should be 100 to 200. Record the value.
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Block the inlet and record the value after it goes up.
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The blocked value minus the idle (unblocked) value should be greater than 100 counts:
(Blocked value – Unblocked value) > 100
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If it is greater than 100, then the pump is working correctly and tubing leading from the
inlet is not leaking.
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To set the Stall Low value, first add the blocked and unblocked values and divide by 2:
(Blocked value + Unblocked value) / 2 = correct Stall Low value
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Then, using the [Y/+] and [N/-] keys, set the Stall Low value to this number.
Verifying the Stall Low Setting - Static
Exit Diagnostic Mode. In Normal Mode, block the inlet. The pump should stall after a few
seconds, sending the instrument into alarm. This tells you that the pump’s Stall Low setting is
correct.
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If the gas inlet is blocked but the pump does not shut down, or the pump shuts down too
easily with a slight blockage, the pump stall threshold value may be set too high or too
low.
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If the pump does not stall and send the instrument into alarm, then there may be a leak
in the gas inlet or the pump is weak or defective and should be replaced.
Important! When you are done setting thresholds, exit Diagnostic Mode and test the instrument
before actual use.
Honeywell MultiRAE Series™ 164 User Manual

Honeywell MultiRAE Series Specifications

General

Brand	Honeywell
Model	MultiRAE Series
Category	Gas Detectors
Language	English