Bacharach 3015-4286 manual Front Panel Display and Controls, General Operation

Operation

Front Panel Display and Controls

Display

Screen

ENTER

Press this button to:

1)Clear peak reading

2)Save a function screen’s displayed value

SILENCE / QUIT

Press this button to:

Keypad

Use these buttons to:

1)Enter function mode and then move arrow (>) on screen to the desired function

2)Scroll through data

3)Change a function’s value

MONITOR ON Light (Green)

1)Flashes during warm-up

2)Lights steady during normal operation

SYSTEM FAULT Light (Yellow)

Flashes when any one or more of the faults listed on Page 19 occur

ALARM Light (Red)

Flashes when the detected gas level exceeds any of three preset alarm points

1)Acknowledge a system fault or gas alarm by turning OFF the internal audible alarm and de-energizing the corresponding fault/alarm relay

2)Return to the previous screen without saving data when in the function mode

General Operation

Once the AGMSZ has been installed, set up, and powered ON, the monitor will make measurements in the area being sampled for ammonia gas without further operator intervention. The results of those measurements are shown on the front panel display.

MEASURE 00485pk

45ppm R717

In the example shown above, MEASURE indicates that the AGMSZ is actively monitoring for refrigerant gas, and that currently 45 ppm of R-717 (ammonia gas) is being detected. This display also indicates that a peak measurement of 485 ppm has been made.

An operator can reset the peak value to zero by pressing the ENTER button.

A log of up to 200 previous measurements can be viewed using the PPM LOG function (Page 15).

If the detected gas level exceeds the preset Leak, Spill, or Evacuate alarm point, then the monitor responds by turning ON the front panel ALARM (red) light and energizing the corresponding alarm relay. If the internal audible alarm is turned ON, it too will activate (AUDALRM page 16). Optional external alarm devices can be connected to the alarm relays to alert personnel that a Leak, Spill, or Evacuate alarm condition has occurred (Page 10). Pressing the front panel SILENCE button will acknowledge an alarm and turn OFF all alarm indicators with the exception of the front panel ALARM light. The alarm circuit will reactivate, however, if the alarm condition is not cleared within the time period set by the SILENCE function (Page 17). The ALARM light will turn OFF after the detected gas level goes below the lowest alarm point and after the SILENCE button is pressed.

Instruction 3015-4286 13