AVG Variable
5.Push AVG button.
6.Push INC button (increase) or DEC button (decrease) until the display matches the desired value.
7.Push SAVE button to store new AVG variable.
To Exit AVG / BLANK Mode
8. Push DONE button twice slowly to get back into normal operation mode.
The Blanking variable is programmed in the same manner, except for step 5 above in which you would push the BLANK button.
4.3 Sample Mode
The Sample Mode feature allows the user to take a measurement using a predefined repeatable method to eliminate user “interpretation” of a gas concentration that is changing. This is similar to a digital scale, for example, so the exact same reading will be taken regardless of who is taking it.
The measuring sequence used in Sample Mode is as follows:
•Draw a Sample for a user programmed sampling time to allow unit to stabilize to the existing gas concentration.
•Measure the gas concentration and average it for a user programmed measuring time.
•Clear the gas concentration to below a user programmed recovery value before allowing another cycle to start. (Unit should be moved to fresh air during the clear time.)
Taking a sample
To take a sample, locate the detector at the desired sample location, and push the SMPL (sample) button on the normal operation screen. The unit will count down the Sample time, followed by the Measure time, at the end of which the average value will be displayed.
Note the displayed sample value. Pushing the CLEAR button will return the unit to the normal operation screen once the gas concentration is below the predefined recovery value. The unit is now ready to take another sample if desired.
Programming sample mode variables
The sample mode variables are Sample, Measure and Clear as described above. The following procedure will change the Sample variable.
To Enter SAMP / MEAS / CLEAR Mode
1.Push power button to turn unit on. Wait for power up sequence to finish (30 seconds).
2.Push and hold the unnamed button (second from left) first, then Push and hold the Menu button. Hold both buttons until the screen goes blank (two seconds). Release both buttons and the unit is now in Programming Mode.
Honeywell | 17 |
