Bacharach HGM-SZ Specifications download pdf (Page 25)

Single Zone Gas Monitor

P/N: 3015-4256 Rev 13 21

SPILLLVL – Sets the Spill Alarm level, adjustable from no lower than

the Leak Alarm level to a maximum value of 500 ppm, but not higher

than the Evacuate Alarm level. Factory default is 300 ppm. Refer to

Appendix for recommended alarm settings for other gases. Use the

Keypad to set the desired Spill Alarm level, and then press ENTER to

save that level and return to the previous screen.

EVACLVL – Sets the Evacuate Alarm level, adjustable from no lower

than the Spill Alarm level to 9999 ppm. Factory default is 500 ppm.

Refer to Appendix for recommended alarm settings for other gases. Use

the Keypad to set the desired spill level alarm level, and then press

ENTER to save that level and return to the previous screen.

LOG INT – Sets the interval at which measurements are logged to

memory from 1 to 9999 minutes. Factory default is 10 minutes. Note that

the logged measurements can be viewed using the PPM LOG function.

Use the Keypad to enter the desired value, and then press ENTER to

save that value and return to the previous screen.

LOOP – Adjusts the loop factor of the 4–20 mA current loop. Factory

default is 0.016 mA per ppm, which provides an output range of 0 ppm

(4 mA) to 1,000 ppm (20 mA). Use the Keypad to set the desired loop

factor, and then press ENTER to save that value and return to the

previous screen.

To facilitate loop zero and span checking, note that when the LOOP

function is selected the loop output is set to 20 mA, and upon exiting this

function the loop output is set to 4 mA.

AUDALRM – Allows the monitor’s internal audible alarm to be

associated with any function of the monitoring system. Factory default is

OFF. Use the Keypad to select the desired audible alarm function, and

then press ENTER to save that value and return to the previous screen.

Audible Alarm Settings: OFF, ANY ALARM, SYSTEM FAULT, LEAK ALARM,

SPILL ALARM, EVAC ALARM, MONITOR STOPPED

NOTE: MONITOR STOPPED indicates there is a critical

system fault, and the monitor is no longer functioning

correctly.

CLOCK – Sets the monitor’s date and time. Use the Keypad to enter

the correct date and time, and then press ENTER to save those values

and return to the previous screen. Note that time is displayed in a

24 hour format, while the date is displayed as mm/dd/yy.

SILENCE – Used to enter a length of time for which the internal

audible alarm and the external alarm are turned OFF when the front

panel SILENCE button is pressed. The factory default is 300 seconds

(5 minutes). If the cause of the alarm/fault has not been cleared at the

end of this time period, the internal audible alarm and the external alarm

device are reactivated. Use the Keypad to enter the desired time period,

and then press ENTER to save that value and return to the previous

screen.

SILENCE TIMEOUT

0300 sec

SET DATE & TIME

11/10/10 15:30

AUDIBLE ALARM IS

OFF

EDIT LOOP FACTOR

0.016 ma/PPM

LOG INTERVAL IS

0010 min

EDIT EVAC LEVEL

0500 PPM

EDIT SPILL LEVEL

0300 PPM

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Bacharach HGM-SZ Specifications Page 25

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