© Danfoss | DCS (ADAP-KOOL®) | 2018.12
RI8SP202 | 2
Danfoss Gas Sensor DGS
Status LED / B&L: 
GREEN is power on.
-   flashing if maintenance needed 
YELLOW is an indicator of Error. 
- the sensor head is disconnected or not the 
expected type 
- AO configured as 0-20mA but no current is running
- flashing when sensor is in special mode (e.g. when 
changing parameters with the service tool) 
- Supply voltage out of range
RED is an indication of alarm due to gas 
concentration level.
 
The Buzzer & Light behaves identical to the status 
LED. 
Ackn. -/Test button / DI_01:
TEST - The button must be pressed for 8 sec.
-  Critical and warning alarm is simulated and AO 
goes to max. (10V/20mA), stop on release. 
ACKN. - if pressed during critical alarm, as default* 
the relays and buzzer goes out of alarm condition 
and goes back on after 5 minutes if the alarm 
situation is still active. 
* the duration and whether to include the relay 
status with this function or not is user defined
DI_01 (terminals 1 and 2) is a dry-contact (potential-
free) behaving identically to the Ackn./Test button.
DC-supply for external Strobe&Horn
Whether the DGS is powered by 24Vdc or 24Vac, 
a 24Vdc power supply (max. 50mA) is available 
between terminals 1 and 5 on connector x1
Jumpers
* JP4 open → 19200 Baud
  JP4 closed → 38400 Baud (default)
* JP5 open → AO 0-20 mA
  JP5 closed → AO 0-10 Volt (default)
Note: the DGS must be power cycled before any change to 
JP4 take effect.
Cable Gland opening
148H126_01-2018
Hole punching for Cable gland:
1. Select the location for the safest cable entry.
2. Use a sharp screwdriver and a small hammer.
3. Place the screwdriver and hammer with precision 
    while moving the screwdriver within a small area
    until the plastic is penetrated.
Continue precision punching with small movements 
until the round piece can be pulled out by your 
fingers.
Remove potential burrs and secure flat surfaces. 
Install the Cable gland according to the enclosed guide.
2
3
JP5
5
 
4
 
2
 
1
 
not used
GND
 
AO_01
 
DI_01
 
S&H supply
 
x1
 
open: 0-20mA
closed: 0-10V
LED
Yellow/Green/Red
1
2
3
1
2
3
x6
 
x5
 
Rel. 3
Rel. 1
x4
 
 
4
 
3
 
2
 
1
 
not used
 
JP3
JP2
JP1
x3
 
 
Ackn.-/Test
button
Sensor 1
Sensor 2
Tool
x9
x2
x8
B&L
JP4
Danfoss
80Z790.1
open: 19200 Baud
closed: 38400 Baud
B-
Modbus
A+
 
-
+
(critical)
(warning)