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STEP 2: WIRING DIAGRAMS
For CE compliance a properly grounded shielding cable is
required.
1) Unscrew the strain relief and route the cable(s).
2) Connect the wires as shown in figure 2a.
3) Tighten the strain relief.
Figure 2a - Wiring diagram
Output 0/2...5/10 V
Output 0/2...5/10 V
+ Power Supply
24VDC / 24VAC
NOTE! When using long connection wires it may be necessary to use a
separate GND wire for voltage output current to prevent measurement
distortion. The need for an extra GND wire depends on the cross sec-
tion and length of the used connection wires. If long and/or small cross
section wires are used, supply current and wire resistance may gener-
ate a voltage drop in the common GND wire resulting in a distorted
output measurement.
Figure 2b - Wiring diagram: Extra GND wire
Output 0/2...5/10 V
Output 0/2...5/10 V
V
V
+ Power Supply
Copyright HK Instruments 2017
CO
2
T
24 V
GND
CO
2
T
24 V
24VDC / 24VAC
GND
STEP 3: CONFIGURATION
Configuration of the CDT2000 Duct series device consists of:
Configuration menu options. (Display versions only.)
Press the select button to accept changes. Move to the next set-
ting by pressing the down button.
1) Activate the device Menu by pushing the select button for 2
seconds.
2) Select the CO
low limit for output band: 0...1900 ppm.
2
CO
OUT MIN
2
400 CO
ppm
2
3) Select the CO
high limit for output band: 500...2000 ppm.
2
CO
OUT MAX
2
2000 CO
2
4) Select the temperature low limit for output band: 0...45.0 °C or
32...112 °F.
TE OUT MIN
0.0 °C
5) Select the temperature high limit for output band: 5...50.0 °C
or 42...122 °F.
TE OUT MAX
50.0 °C
6) Select the output maximum voltage: 5 V / 10 V.
MAX OUTPUT V
10 V
7) Select the output minimum voltage: 0 V / 2 V.
MIN OUTPUT V
0 V
8) Push the select button to exit menu.
SELECT
EXIT MENU
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SELECT
UP
DOWN
SELECT
ppm
UP
DOWN
SELECT
UP
DOWN
SELECT
UP
DOWN
SELECT
UP
DOWN
SELECT
UP
DOWN
SELECT
Installation version 5.0 2017
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