User guide

Chapter
5
51
Calibrating the Analog Input Module
This chapter describes how you calibrate the module.
Your input module is calibrated at the factory. We recommend that you
recalibrate it every year to maintain accuracy. If for some reason you can
not calibrate the module, return it to Allen-Bradley Company for
recalibration. The mailing address is:
Allen-Bradley Company
Industrial Computer Group
747 Alpha Drive
Highland Heights, Ohio 44143
We recommend the following equipment for calibrating the module:
Equipment: Description/Source:
precision
voltage
source
+10V
, 0.1mV resolution minimum
Analog 3100, Data Precision 8200, or equivalent
digital voltmeter
5 1/2 digit, 0.01% accuracy minimum
Keithley 191, Fluke 8300A, or equivalent
sealant T
orque Seal" by Organic Products or equivalent
alignment tool
P/N 35F616, for potentiometer adjustment,
Newark Electronics or equivalent
industrial terminal
cat. no. 1770T3 with cable (cat. no. 1772TC) for
PLC2 family processors
cat. no. 1770T4 with cable (cat. no. 1775CAT) for
PLC3 family processors
cat. no. 1784T50 for PLC5/15 processors
Chapter Objective
Service Information
Calibration Equipment