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3.3. Display Screens
3.3.1. Initial Power Up
When the SZ monitor is first powered up all front panel lights are turned
ON, and a splash screen appears showing the monitor's firmware
revision level. After a brief moment the Warm Up screen is display
along with the front panel MONITOR ON light (green) blinking.
The monitor takes 15 minutes to warm up; after which, the MONITOR
ON light glows steadily and the Data Display screen is displayed.
3.3.2. Data Display Screen
During normal operation, the Data Display screen shows when the
monitor is performing the following three functions:
MEASURE indicates that the monitor is actively measuring for selected
gas. In the example screens shown above, the monitor is currently
detecting 0 ppm of R-134A (refrigerant gas), and that a peak
measurement of 485 ppm has occurred.
To reset the peak value to zero, press the ENTER button.
PURGE is displayed when the monitor is resetting its infrared detector
to a baseline of 0 ppm using fresh (zero) air that is being drawn in
through the Purge Air Inlet Port. This purging process is performed on
an "as needed" basis, which is normally once every 6 to 8 minutes.
PRES CHK is displayed when the monitor is performing an atmospheric pressure check, which is done to
ensure the accuracy of the gas measurement under varying atmospheric conditions. This pressure check
is performed every 30 minutes.
3.3.3. Function Screens
The Function screens are used to display stored data and to set up the monitor.
From the Data Display screen, press any Keypad button to display the first Function Menu screen.
Next, use the Keypad buttons to move the arrow (>) on the display until it is next to the desired function,
and then press the ENTER button to select that function.
>PPM LOG FAULTS
ALARMS
Once a function has been selected, use the Keypad to scroll through the displayed data or to change a
parameter associated with that function. Press ENTER to save newly entered parameters. Press the
QUIT button to return to the previous screen without saving.
Note that if no buttons are pressed within 90 seconds after selecting a function, the monitor returns to the
Data Display screen.
P/N: 3015-4256 Rev 13
>LOG INT AUDALRM
DIAGNOS
LOOP
>GASTYPE SPILLVL
LEAKLVL EVACLVL
WARM UP
MEASURE
PURGE
PRES CHK 00485pk
>P-CHK
CLOCK
>SILENCE ZONETMP
SQUELCH CAL
Single Zone Gas Monitor
BACHARACH
VERSION x.xx
00485pk
0ppm R134A
00485pk
0ppm R134A
0ppm R134A
19
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