Danfoss DGS-SC Installation And Operation Manual page 18

Installation and Operation Guide | DGS Modbus
Duration of Reset alarm
Maximum duration of alarm reset before automatic re-enable of external indicators (mute
timeout in minutes) a value of 0 disables ability to mute alarm.
The duration time is set in minutes
Warning limit in %
The warning limit can be set as a percentage of full scale ppm. The full scale ppm can be
viewed in the "Service" group.
Example: If the full scale value is 1000ppm and the sensor should give alarm at 200ppm, the
value is entered as 20%
Warning limit in ppm
The warning limit is entered here as a ppm value.
Enabling of Warning alarm
It is possible to enable a warning alarm to give an early indication of a potential high alarm
limit.
Enables warning alarm when the Warning limit is exceeded
Service
Refrigerant type
Read out of refrigerant (Gas) used for the for the DGS is used for
Gas Full scale in ppm
The full scale ppm value is displayed here
Hours since last calibration
Keeps a count of the number of hours the sensor is powered on. The value is incremented
every hour and after one year the register will exceed 8760 hours and the Calibrate Sensor
alarm is set to indicate that the detector requires testing. The "Reset Cal" is used to reset both
the alarm and the "Burning Hours" timer.
Status of the sensor warm up period
Depending on the sensing technology of the actual DGS unit, it will have a warm-up period of
up to 5 minutes until the measurements are accurate
0 =Ready
1 = Warming Up
Reset calibration counter and warning
Clears calibration due warning and resets the burning hours parameter to zero
0 = Calibration valid
1 = Calibration due
Alarm relay Failsafe configuration
The alarm relay function can be configured to give an alarm when the DGS unit is powered off.
0 = Not failsafe
1 = Failsafe
Enable Manual control
In a service situation it is possible to set the DGS unit in a manual control mode to validate the
installation.
As a pre-caution, the DGS unit automatically changes back from manual control to normal
operation after 10 minutes
Status of the alarm relay
Displays the status of the alarm relay
Can be operated in Manual Control mode
0 = No alarm signal
1 = alarm signal
Status of the buzzer
Displays the status of the buzzer.
Can be operated in Manual Control mode
0 = inactive
1 = active
Status of the red LED
Displays the status of the red LED (unit in alarm condition).
Can be operated in Manual Control mode
0 = off
1 = on
Status of the green LED
Displays the status of the green LED (unit powered ON).
Can be operated in Manual Control mode
0 = off
1 = on
18 | RS8HJ102 |
Reset alarm time
Warning limit %
Warning lim. ppm
Warning Enable
Service
Refrigerant
Fullscale ppm
Burning hours
Startup flag
Reset cal
Relay failsafe
Maunal Control
Alarm Relay
Sounder
Red LED
Green LED
© Danfoss | ADAP-KOOL® | 2016.12