Setting Pump Stall Threshold Values - Static Method - Honeywell AreaRAE Plus User Manual

AreaRAE Plus & AreaRAE Pro User's Guide
Important! When you are done setting thresholds, exit Diagnostic Mode and test the instrument before
actual use.
Setting Pump Stall Threshold Values – Static Method
19.4.4
Use the following values for reference when using the Static method to adjust the pump stall threshold
values:
Vacuum
Flow rate
Idle (I)
Block
Stall Setting
Stall High Threshold Setting – Static Method
In Diagnostic Mode, press the [MODE] key repeatedly until the "Pump" screen is displayed. "High"
should be highlighted. Otherwise, press [Y/+] to select the "High" value.

The Idle value (shown as a value for "I") should be 150 to 250. Record the value.

Block the inlet, and record the value after it goes up.

The blocked value minus the Idle (Unblocked) value should be greater than 100 counts: (Blocked
value – Unblocked value) > 100.

If it is greater than 100, then the pump is working correctly and tubing leading from the inlet is not
leaking.

To calculate the best High value, first add the Blocked and Unblocked values and divide by 2:
(Blocked value + Unblocked value) / 2 = correct Stall High value.

Press [N/-] to advance to the next Pump screen.

Use the [Y/+] and [N/-] keys to increase or decrease the high value input the results of your
calculation.

Press [MODE] to register that value.
Low Speed
≤ -2.5in Hg
>200 cc/min
100 to 200 counts
(Block-Idle) > 100 counts
(Idle + Block)/2
101
High Speed
≤ -10in Hg
>400 cc/min
150 to 250 counts
(Block-idle) > 100 counts
(Idle + Block)/2