Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 65)

Rev. 5/09
-3.27- TFXP
4-20 mA
Calibration
Example 1: To span the 4-20 mA output from -100 GPM to +100
GPM, with 12 mA being 0 GPM, set the FL 4MA and FL 20MA
inputs as follows:
FL 4MA = -100.0
FL 20MA = 100.0
Example 2: To span the 4-20 mA output from 0 GPM to +100
GPM, with 12 mA being 50 GPM, set the FL 4MA and FL 20MA
inputs as follows:
FL 4MA = 0.0
FL 20MA = 100.0
The 4-20 mA ISO-MOD is factory calibrated and should not require
adjustment unless it is replaced.
The CAL 4MA entry allows fine adjustments to be made to the
“zero” of the 4-20 mA output. To adjust the 4 mA output, an
ammeter or reliable reference connection to the 4-20 mA output
must be present.
Figure 3.10 — Typical Multimeter Connection
PART 3 - KEYPAD CONFIGURATION