Rockwell Automation 937CU-AISTR-DC1 Strain Gauge Converter Installation Instructions - Manual (Page 35)

This setting converts the measured value 0 into 4 mA, the span is converted into 20
mA, interim
values are calculated proportionally.
For values below the measured value 0, the output current decreases linearly to a minimum of 3.8 mA
(-1.25 % of the measurement range). Further underflows cannot be evaluated (output 3.8 mA). If the
span is exceeded, the output current increases linearly to a maximum of 20.5 mA (approx. 103 % of
the measurement range). Further increases cannot be evaluated (output 20.5 mA).
Selected setting 12.20 -/+mA
This setting converts the measured value 0 into -12 mA (i.
e. into 12 mA in the case of changed polarity
at the terminals 7 and 8), the span is converted into +20 mA
(terminal 7 -, terminal 8 +), interim values are calculated proportionally.
For values below the measured value 0, the output current decreases linearly to a minimum of
-12.5 mA (approx. -1.6 % of the measurement range). Further underflows cannot be evaluated (output
12.5 mA). If the span is exceeded, the output current increases linearly to a maximum of 20.5 mA
(approx. 102 % of the measurement range). Further increases cannot be evaluated (output 20.5 mA).
+ 20.5
+ 20.0
0
≈ - 1.6 % 0
100 % = span
≈ 102 %
mA
Measured
- 12.0
- 12.5 value
Bul. 937
C Strain Gauge Converter Installation Instructions
33