Millennium Enterprises AD-ST1400-25, MLP-A/AR user manual Operate, Scrolling 8-character display

Net Safety Monitoring Inc.

STEP 4 — OPERATE

The Controller faceplate contains most functional elements of the user interface. Below is a description of that functionality.

Figure 12: Controller Functionality

Magnetic Reed Switch - provides non-intrusive access for programming, calibrating and resetting.

-Place magnet against Housing (where indicated) for less than one second to initiate a basic system reset (clear a latched alarm) and make selections.

-Place magnet against Housing (where indicated) and hold to program, view current settings and calibrate.

Refer to "Magnetic Reed Switch" on page 12 for further information.

ON/OFF Switch - used to turn Controller on and off. Housing must be removed to access.

Pull Here knob - unscrew the two screws and pull to remove faceplate. Removal allows access to PCBs. The faceplate remains attached by the ribbon cable.

Scrolling 8-character display -

provides various status messages and prompts. Refer to "Status LEDs, Display Messages and Current Loop" on page 11.

				Pull
				Here
C
al/				Status
R		et
Mag
	es
On Si	n	et		Red
de
				Slow Flash:
			Calibration/Setup	Gas present
				Cal or Fault
				Flast flash :
	On		-Hold Cal/Reset or	Solid:
			magnet until countdown	Overrange
			is zero (~10 sec)	Green
			-Follow instruction on
			display	Short Blips:
				Normal
				operation.
	Off			No gas
				present

Power

Current O/P Check

Pull

Connect current probes to meter jacks and read mA output

Pull Here knob - unscrew the two screws and gently pull to remove faceplate. Removal allows access to terminal boards. The faceplate remains attached by the ribbon cable.

Status Light (Red and Green) - indicates status of unit. Refer to "Status LEDs, Display Messages and Current Loop" on page 11 for detailed explanation of states/status.

Calibration Button - provides intrusive access for programming, calibrating and resetting.

Current Test Jacks - to take current loop measurements use the following procedure:

-Insert your current meter leads into the Test Jacks.

-Set external devices to bypass, if necessary, to avoid unwanted alarm response

-Review current loop measurements.

Refer to "Current Loop Measurement (Test Jacks)" on page 12 and Table 2, "Status LEDs, Display Messages and Current Loop", on page 11.

-Push for less than one second to initiate a basic system reset (clear a latched gas alarm) and make selections.

-Push and hold to program, view current settings and calibrate.

Refer to "Calibration Button" on page 11 for further information.

MLP-A/AR/AD-ST1400-25 10