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© Danfoss | DCS (ADAP-KOOL®) | 2018.12

RI8SP202 | 6

Read out the attached Gas sensor type.
1: HFC gr.1

R1234ze, R454c, R1234yf
R1234yf, R454a, R452A
R454b, R513a

2: HFC gr.2

R407F, R416a, R417a
R407A, R422a, R427a
R449A, R437a, R134A
R438a, R422D

3: HFC gr.3

R448A, R125
R404A, R32
R507A, R434a
R410A, R452b 
R407C, R143b

4: CO2
5: Propane (R290)

1

5

N

-

Sensor type

Full scale range

0

32000

HFC: 2000 
CO2: 20000 
R290: 5000

ppm

Full scale ppm

Gas 1 Days until next  calibration

0

32000

HFC: 365 
CO2: 1825 
R290: 182

days

Days till calib

Gas 1 Shows how many %  of Sensitivity remaining   
Note: Value only updated after calibration

0

100

100

%

Rem.sensivity

Status of the critical alarm relay
1:  ON = No alarm signal, Coil under Power - normal 
0: OFF = alarm signal,  Coil depowered,  Alarm Situation 

0

1

0

-

Critical Relay

Status of the Warning Relay
0: OFF= inactive, no Warning active
1:  ON = active Warning, Coil under Power

0

1

0

-

Warning Relay

Status of the buzzer
0: inactive
1: active

0

1

0

-

Buzzer

Gas 2 Days until next  calibration

0

32000

HFC: 365 
CO2: 1825 
R290: 182

days

2:Days til calib

Gas 2 Shows how many %  of Sensitivity remaining   
Note: Value only updated after calibration

0

100

100

%

2:Rem.sensivity

Activates a mode which simulates an alarm. Buzzer, LED and relays all 
activate
1:-> Test function - no alarm generation possible now
Automatically falls back to Off after 15 min.
0: back to Normal mode

0

1

0

-

Test Mode

Analog Output Selction Sensivity
0: zero to full Scale  (e.g (Sensor 0-2000ppm)  0-2000ppm will give 
0-10V)
1: zero to Half Scale (e.g (Sensor 0-2000ppm) 0-1000ppm will give 
0-10V)

0

1

1

-

AOmax = half FS

Analog Output Selection Zero start
0: select 0-10Vor 0-20mA Output signal
1: select 2-10V or 4-20mA Output signal

0

1

0

-

AOmin = 2V/4mA

Alarms

Critical Limit alarm 
0: Alarm not active
1: Alarm, gas limit exceeded and delay expired

0

1

0

-

Critical limit

0: OK
1: Fault. Out of range under test –Overrange or Underrange 

0

1

0

-

Out of range

0: OK, sensor no errors 
1: Fault,  Sensor and Head  failures

0

1

0

-

Wrong SensorType

0: OK, sensor in place 
1: Fault, Sensor out or removed, or wrong sensor placed in

0

1

0

-

Sensor removed

0: OK, Sensor not due for calibration
1: Warning, Due for calibration

0

1

0

-

Calibrate sensor

Summary of Contents for DGS

Page 1: ...as a safety device securing a reaction to a detected high gas concentration If a leakage occurs the DGS will provide alarm functions but it will not solve or take care of the leakage root cause itself Regular Test To maintain product performance and comply with the local requirements the DGS must be tested regularly DGS s are provided with a test button that may be activated to validate the alarm ...

Page 2: ...y 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 Danfoss ...

Page 3: ...r general BMS system set the Modbus address using the DGS Service Tool using password 1234 when prompted See the DGS User Guide for details on operating the DGS Service Tool The Baud Rate is adjusted by jumper JP4 As default the setting is 38 4kBaud For integration with AK SM 720 350 change the setting to 19 2kBaud For more information about data communication see document RC8AC Sensor replacement...

Page 4: ... bottle with pressure regulator and a calibration adapter In doing so the set alarm thresholds are exceeded and all output functions are activated It is necessary to check if the connected output functions are working correctly e g the horn sounds the fan switches on devices shut down By pressing the push button on the horn the horn acknowledgment must be checked After removal of the reference gas...

Page 5: ...y 0 600 0 sec Alarm delay s When set to 1 the audible sounder are reset and the relays if defined Relay rest enable to no alarm indication When the alarm is reset or the time out duration is exceeded the value is reset to 0 Note The alarm condition is not reset only the output indication is reset 0 Alarm outputs not reset 1 Alarm outputs reset buzzer muted and relays reset if configured 0 1 0 Rese...

Page 6: ...on 0 32000 HFC 365 CO2 1825 R290 182 days 2 Days til calib Gas 2 Shows how many of Sensitivity remaining Note Value only updated after calibration 0 100 100 2 Rem sensivity Activates a mode which simulates an alarm Buzzer LED and relays all activate 1 Test function no alarm generation possible now Automatically falls back to Off after 15 min 0 back to Normal mode 0 1 0 Test Mode Analog Output Selc...

Page 7: ...l operation i e alarms are created and cleared 1 Alarms inhibited i e alarm status is not updated e g due to DGS in test mode 0 1 0 Alarm inhibited Critical Limit alarm 0 Alarm not active 1 Alarm gas limit exceeded and delay expired 0 1 0 2 Criti limit 0 OK 1 Fault Out of range under test Overrange or Underrange 0 1 0 2 Out of range 0 OK sensor no errors 1 Fault Sensor and Head failures 0 1 0 2 Wr...

Page 8: ... reached the end of life Carry out calibration routine or replace with a new factory calibrated sensor Yellow AO configured but not connected only 0 20 mA output Check wiring Sensor type does not match DGS specification Check gas type and measuring range Sensor may be disconnected from printed circuit board Check to see sensor is properly connected The sensor has been damaged and needs to be excha...

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