Sensor Alert Scan
Displays alert codes for expected sensors. Sensors operating properly will
display NoAlert.
Other Alert Codes
Alert Code
Type
Description
Corrective Action
Missing
ALERT
Transmitter cannot communicate with Sensor
Power cycle system and recheck.
SensAOOR
or
SensBOOR
ALERT
Sensor fault
Replace sensor. Contact Greenheck.
DeltaOOR
ALERT
Sensor Delta Temperature out of range
Contact Greenheck.
TempOOR
RANGE
Temperature measurement out of range
(-20 to 140°F)
Verify application temperature is not outside -20
to 140°F. If Vari-Green appears to be reporting
incorrectly, contact Greenheck.
Disabled
ALERT
Sensor resets abnormally
Power cycle system and recheck.
VelOOR
RANGE
Average velocity exceeds 5000 FPM for ducted
and 10,000 FPM for Fan Inlet
Verify factory set-up information is correct. If
application velocity exceeds 5000 FPM, contact
Greenheck.
4.2 START-UP / OPERATION
After power and signal wiring has been verified in accordance with section
3.4, activate the external 24 VAC / 24 VDC power source.
1. Press the power button located on the bottom left corner of the front
cover to turn the system ON.
2. The display will show a loading bar. After reaching 100%, the display
will indicate which sensors have been discovered for approximately 2
seconds. Then the normal operating screen will be displayed.
The default normal operating screen will display Total Flow on the first
process line, Velocity (average of all enabled sensors) on the second
process line and Temperature (average of all enabled sensors) on the third
process line. Application tagging information is at the bottom of the screen
and is customer configurable.
Sensor Alert Scan
ESC - Leave UP/DN - Scroll
Sensor 1: Disabled
SENSOR
ALERT CODE
FREQ
1
Disabled
41
2
NoAlLert
Total Flow
520 ACFM
417.1 AFPM
Velocity
72.71 F
Temperature
Send/Receive arrows flashing indicates the sensor(s) and transmitter are communicating
normally
Transmitter processor normal
Field Characterization has been turned on
The following icons will always be displayed at the top of the normal operating screen. Press
ENT
to enter
menu screens. Follow instructions in section 4.1 to navigate.
Vari-Green® Transmitter
9
®
