Datasheet

ManualsBrandsDanfoss ManualsMeasuringgas detection units - Types GD Basic and Basic+

Electrical connection

12 4

Bus_B

Bus_A

0 V AC/DC

24 V AC/DC

Ackn. -/Test

button T1

Service Tool

Buzzer &

3-light alarm

Analog Output

Status LED

Green/Yellow/Red

GND

JP5*

Open: 4-20mA

Closed: 2-10V AO_01

Jumper

Sensor

Danfoss

148H119_11-2018

Status LED:

GREEN is power on.

- ashing if maintenance needed

YELLOW is an indicator of Error.

- when the sensor head is disconnected or not

the expected type

- AO is activated but nothing connected

- ashing when sensor is in special mode

(e.g. when changing parameters)

RED on alarm, similar to the buzzer & light alarm.

Ackn. -/Test button:

TEST - The button must be pressed

for 20 sec.

- Alarm1 and Alarm2 is simulated, stop on

release

ACKN. - Pressed while Alarm2, the audible

warning switches o and goes back on after

5 min. when the alarm situation is still active.

* JP4 open → AO 4-20 mA (Default)

JP4 closed → AO 2-10 Volt

Analog Output

Sensor

Ackn.-/Test

button T1

Open: 4 – 20mA

Closed: 2 – 10V