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2-10 Vdc Output Signal Transmitter
Calibration Procedure
1.0 Test Equipment
1.1 Digital multimeter. Set multimeter to read DC
voltage.
1.2 Make sure Output Signal type is set to 2-10 Vdc.
2.0 Interconnect Wiring
TB1
24 Volts
~24 V
1
AC or DC
~24 V
2
6VA Max
Input Power
3
Earth Ground
TB2
4 to 20 mA/
1
2-10 Vdc (+)
2
4 to 20 mA/
2-10 Vdc (-)
3
Shield
4
Temperature
Sensor
5
2.1 Validate the power is off on the DC power supply
and the Sure-Aire controller.
2.2 Validate the multimeter is set to read DC voltage.
2.3 Interconnect the multimeter (+) probe to TB2 pin 1.
2.4 Interconnect the multimeter (-) probe to TB2 pin 2.
2.5 Apply power to the Sure-Aire controller.
2.6 Press the Setup button on the Touch Panel
Interface.
2.7 Keep pressing the Next button until you reach the
Transmitter Min Value screen.
2.8 Press Edit, then Inc or Dec until the digital
multimeter reads exactly 2.00 Vdc
Greenheck
Sure-Aire V 1.00
Transmitter Min Value:
Exit
Inc
Dec
2.9 Press Enter to store the new value.
2.10 Press Next.
2.11 Transmitter Max Value.
Greenheck
Sure-Aire V 1.00
Transmitter Max Value:
Exit
Inc
Dec
6
Sure-Aire™ Flow Monitoring System
Greenheck
Sure-Aire V 1.00
Output Signal:
2-10v
Exit
Prev
Next
Sure-Aire Controller
LCD Touch Display
1827
Enter
720
Enter
2.12 Press Edit, then Inc or Dec until the digital
multimeter reads exactly 10.00 Vdc.
2.13 Press Enter to store the new value.
2.14 Press Exit to return to the main screen
2.15 2-10 Vdc transmitter calibration completed.
Apply a vacuum to the High Port and the 2-10 Vdc
transmitter will track the span of the pressure range.
i.e. The Sure-Aire controller with a pressure sensor
of 0 - 41.51 in. W.C. installed, 2.00 Vdc = 0 in. W.C.,
10.00 Vdc = 41.52 in. W.C.
Edit
NOTE
®
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