6
Sure-Aire™ Flow Monitoring System
2-10 Vdc Output Signal Transmitter
Calibration Procedure
4 to 20 mA/
2-10 Vdc (+)
4 to 20 mA/
2-10 Vdc (-)
Shield
Temperature
Sensor
1
2
3
TB2
4
5
24 Volts
AC or DC
6VA Max
Input Power
Earth Ground
~24 V
~24 V
1
2
3
TB1
Sure-Aire Controller
LCD Touch Display
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
Greenheck
Sure-Aire V 1.00
Output Signal:
2-10v
Exit
Prev
Next
Edit
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
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.
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 Min Value:
1827
Exit
Inc
Dec
Enter
Greenheck
Sure-Aire V 1.00
Transmitter Max Value:
720
Exit
Inc
Dec
Enter
NOTE
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.
®
