Distech Controls GS-2CDD02K Series User Manual

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<MENU>
Press to advance to next menu item.
Only if Temperature Sensor option installed
Temp
Units °C
The Temp Units setting is used to select °C or °F display of temperature. Use <UP> or <DOWN> to
select. The selection will also control available setpoint ranges if the setpoint option is installed.
Factory default is °C.
<MENU>
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Display
CO2 ppm
Display is used to control what information is displayed on the LCD. The selections depend on the
installed options. Use <UP> or <DOWN> to select either CO
2
ppm, Temp, CO
2
+Temp, Rotate or
None. Factory default is CO
2
ppm. For a basic CO2 only device, the selection is limited to CO
2
ppm
or None.
CO
2
ppm: Only the actual ppm value of the CO
2
reading will be displayed
Temp: Only temperature is displayed (°C or °F depends on units setting)
CO
2
& Temp: CO
2
ppm and temperature both displayed at the same time
Rotate: All available sensor readings rotate at 2 second intervals
None: No measurement information is displayed in normal mode, the menu will still display in Setup
Menu mode
<MENU>
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BackLite
Auto
The BackLite setting is used to control how the LCD backlight functions. Use <UP> or <DOWN> to
select either Auto, Off or On. Auto means the backlight only lights when a menu is accessed or when
the setpoint is activated (ie: when a key is pressed), Off means the backlight is always off and On
means it is always on. Factory default is Auto.
Only if Temperature Sensor option installed
T Offset
0.0 °C
The T Offset value allows calibration of the temperature value displayed on the LCD. Units (°C/°F)
follow the Temp Units setting. Use <UP> or <DOWN> to add
or subtract an offset from the
temperature value. The range is -5.0 to 5.0 °C or -9.0 to 9.0 °F in 0.1° increments. Factory default is
0.0 °C.
<MENU>
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Only if Relay option installed
Relay SP
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.
<MENU>
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Relay SP
1000 pmm
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.
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
1000 ppm
CO
2
Low
1000 ppm
500 to 9000 ppm
1000 ppm
<MENU>
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Relay Hy
50 ppm
or
Relay Hy
0.5 °C
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 (setpoint + 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).
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>
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Distech Controls GS-2CDD02K Series Specifications

General

Brand	Distech Controls
Model	GS-2CDD02K Series
Category	Transmitter
Language	English