26
SYSTEM
allows the Input to be simulated. Two choices are available, FIXED is
a fixed value, RAMP varies the signal across the 4-20 mA range, from the
lowest value to the highest value and back, activating and deactivating relays
if present. The RAMP has two adjustments the Ramp period, 30 seconds to 2
minutes and Duration; 1 cycle, 5, 10, 20, 30 minutes.
RELAYS
allows individual relays, #1, #2, and #3 to be activated and deactivated
4-20 mA
allows the output to be simulated from 4.00 mA to 20.00 mA.
3.2.6
F
AULT
S
CREENS
Fault
Definition
Recommendation
Memory Error
AN ERROR WAS FOUND
WITH THE MEMORY OF
THE MICROCONTROLLER
RETURN TO FACTORY
FOR SERVICE
Input Voltage OOT
POWER IS OUT OF
TOLERANCE
CHECK WIRING TO
THE TRANSMITTER
+12V OOT
ONBOARD 12V IS
OUT OF TOLERANCE
RETURN TO FACTORY
FOR SERVICE
+3.3V OOT
ONBOARD 3.3V IS
OUT OF TOLERANCE
RETURN TO FACTORY
FOR SERVICE
Loss of Comm
COMMUNICATION WITH
THE SENSOR WAS LOST
CHECK WIRING TO
THE SENSOR
No Sensor
NO SENSOR WAS FOUND
AT START-UP
CHECK WIRING TO
THE SENSOR
Cal Failed
SENSOR CALIBRATION
FAILED
1) CLEAN SENSING TIP
2) VERIFY SOLUTIONS
3) DO NOT LEAVE
UNATTENDED
4) RE-CALIBRATE
Relay 1 Expired
RELAY 1 TIME
ON EXPIRED
1) CHECK SENSOR OP
2) CHECK AUX EQUIP
A) PUMPS
B) TANKS
Relay 2 Expired
RELAY 2 TIME
ON EXPIRED
1) CHECK SENSOR OP
2) CHECK AUX EQUIP
A) PUMPS
B) TANKS
Relay 3 Expired
RELAY 3 TIME
ON EXPIRED
1) CHECK SENSOR OP
2) CHECK AUX EQUIP
A) PUMPS
B) TANKS
3.3
OUTPUT
CONFIGURATION
GUIDE
Install and wire the T80 Transmitter as described in Sections 2.1 and 2.2 above.
Connect the sensor to the transmitter as described in Section 2.2 above.
Supply power to the Model T80 transmitter.
Verify the proper measurement type is displayed, pH and TCl
2
. The sensor automatically uploads the measured
parameter, the calibration data and the range of measurement to the transmitter. The default configuration of
the 4-20 mA output is the range of the sensor, 0-14 pH for pH sensors and 0.00 -20.00 ppm for Total Chlorine. To
change the 4-20 mA range, follow the instructions in Section 3.3.1 below.