Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 66)

Rev. 5/09
-3.28- TFXP
NOTE: The CAL 4MA and CAL 20MA entries should not be used
in an attempt to set the 4-20 mA range. Utilize the FL 4MA and FL
20MA, detailed on page 3.26, for this purpose.
Procedure:
1. Disconnect any wires presently connected to the spring clips on
the end of the 4-20 mA output cable. Connect the ammeter in
series with the spring clips on the end of the 4-20 mA output
cable.
NOTE: Be sure to connect the multimeter test leads for current
measurement. If necessary consult the mulitmeters instruction
manual for the correct procedure to perform a current
measurement.
2. Using the UP/DOWN arrow keys, increase the numerical value
to increase the current in the loop to 4 mA. Decrease the value
to decrease the current in the loop to 4 mA. Typical values
range between 40-80 counts.
3. Reconnect the 4-20 mA output circuitry as required.
Calibration of the 20 mA setting is conducted much the same way
as the 4 mA adjustments.
Procedure:
1. Disconnect any wires presently connected to the spring clips on
the end of the 4-20 mA output cable. Connect the ammeter in
series with the spring clips on the end of the 4-20 mA output
cable.
NOTE: Be sure to connect the multimeter test leads for current
measurement. If necessary consult the mulitmeters instruction
manual for the correct procedure to perform a current
measurement.
2. Using the UP/DOWN arrow keys, increase the numerical value
to increase the current in the loop to 4 mA. Decrease the value
to decrease the current in the loop to 4 mA. Typical values
range between 3700 - 3900 counts.
3. Reconnect the 4-20 mA output circuitry as required.
PART 3 - KEYPAD CONFIGURATION