Page 6
Only if
Relay
option Installed
Relay SP
1000 ppm
Relay Hy
50 ppm
Relay
Dly 0min
Relay
Test OFF
Relay SP
26
°
C
Relay Hy
0.5
°
C
The relay setpoint depends on the relay assignment set previously. Use <UP>
or <DOWN> to change the setting within the limits as shown in the table.
Note that only the one previous selection will be available. Note that a high
alarm activates when the measurement exceeds the setpoint and a low alarm
activates when the measurement goes below the setpoint. Use <MENU> to
save and advance.
The Relay Hysteresis will depend on how the relay is assigned. Units will either
be in ppm for CO
2
or °C/°F for temperature.
Use <UP> or <DOWN> to change the Relay Hysteresis within the limits as
shown in the table.
Note that a high alarm resets when the measurement goes below (setpoint
- hysteresis) and a low alarm resets when the measurement goes above
(se hysteresis). Note the value is somewhat dependent on the setpoint
(ie: if the CO
2
setpoint is 500 ppm then the hysteresis cannot be 500 ppm).
Use <UP> or <DOWN> to change the Relay Delay time within the limits. The
delay time may be set from 0 to 9 minutes in 1 minute increments to prevent
false alarms. The default is 0 minutes (no delay).
Use <UP> or <DOWN> to toggle the relay ON or OFF to test the relay
operation. Press <MENU> to reset to OFF and advance.
or
or
12. RELAY SETPOINT
13. RELAY HYSTERESIS
14. RELAY DELAY
15. RELAY TEST
RELAY ASSIGNMENT
DEFAULT SETPOINT
SETPOINT RANGE
RESOLUTION
Temp High
26.0°C / 79.0°F
5.0 to 40.0°C / 40.0 to 100.0°F 0.5°
Temp Low
15.0°C / 59.0°F
5.0 to 40.0°C / 40.0 to 100.0°F 0.5°
CO
2
High
1000 ppm
500 to 9000 ppm
100 ppm
CO
2
Low
1000 ppm
500 to 9000 ppm
100 ppm
RELAY ASSIGNMENT
DEFAULT SETPOINT
SETPOINT RANGE
RESOLUTION
Temp High or Low
0.5°C/F
0.2 to 5.0°C/F
0.1°C/F
CO
2
High or Low
50 ppm
25 to 500 ppm
25 ppm
<MENU>
Press to advance to next menu item
<MENU>
Press to advance to next menu item
<MENU>
Press to advance to next menu item
<MENU>
Press to advance to next menu item
<MENU>
Press to advance to next menu item
Only if
Relay
option Installed
Relay
CO2
The Relay setting allows the relay alarm to be assigned to either CO
2
High,
CO
2
Low, Temp Hi or Temp Low as applicable. Use <UP> or <DOWN> to select.
Factory default is CO
2
High. If the temperature sensor is not installed then the
options will not be available.
11. RELAY
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IN-GE-CD2RMCXXX-04