BEAMEX MC5 - Adjusting the Current Generation in ET Module (±25 Ma)

Calibration and Adjustment Instructions for MC5 Multifunction Calibrator For Main Firmware Version 1.90
Page 15/16
Adjusting the Current Generation in ET Module (±25 mA)
Quantity: Current
Function/Port: ET: Current Generation
Connect an accurate Digital Multimeter to the calibra-
tor’s terminals highlighted in the adjacent picture.
The lowermost measurement value in the current gen-
eration window is the calibrator’s own feedback meas-
urement of the generated current.
Generation adjustment point ranges, mA
Low: 0
High: 20 … 25
Feedback measurement adjustment point ranges, mA
1: 4.9 … 6
2: 9.9 … 12
3: 20 … 25
Move the field indicator to the uppermost field and enter
zero as the low adjustment point. Enter the current seen
on the Digital Multimeter’s display to Span Reference
Value field in the calibrator. Then generate a current that
is inside the high adjustment point range and enter the
correct value for that point too. Repeat the low and high
adjustments until the current generation is accurate
enough.
DMM
mA
21.999179
Edit Delete OKCancel
17.10.2002 08:59
Current
ET: Current Generation
mA22.000
Measurement mA
Span Reference Value 21.999179_
21.9992
MULTIFUNCTION CALIBRATOR
T/C, Low V
4-w meas
R, RTD
3 & 4-w meas
V, I,
+24V
I
meas/sink
Low V
HART
®
T/C INT. RJ
T/C OR EXT
WIRES ONLY
2-w xmtr
V, ,
?
MEASURE
OUTPUTSENSOR MEASURE & SIMULATE
ET E
Max input:
60 VDC/30 VAC
The feedback measurement need also be adjusted. To adjust it, move the field indicator to the
uppermost field and enter a value within the first feedback measurement adjustment range. En-
ter the current seen on the Digital Multimeter’s display to Span Reference Value field in the cali-
brator. Continue through all the adjustment points.
When ready, select either another Quantity and Function/Port combination or save the adjust-
ment result as described in chapter Saving Adjustment Data on page 16.
Notes.
For feedback measurement adjustment point ranges 1 and 2, only the lowermost value in the current generation win-
dow (the feedback measurement value) is changed.
The feedback measurement adjustment point range 3 is both for the current generation range and the feedback meas-
urement adjustment. Thus both values are updated.