TB 1-4920-443-35
Alignment of Automated Data Acquisition System (AEDATS IV)
73. GENERAL INFORMATION
a. This chapter tells how to calibrate the system. Calibration signals should be applied as close to the signal
sources as practical. Recommended calibration equipment and equipment accuracies are listed in Table
75-1. Equivalent equipment is satisfactory. Let the system warm up for 30 minutes prior to conducting a
calibration.
NOTE
Prior to calibrating thermocouples, attach all thermocouple leads on to the test stand,
and calibrate each channel one at a time. If this is not done, thermocouple channels will
appear to drift.
Table 73-1 Calibration Equipment
EQUIPMENT
TYPE/USE
APPLICATION
Eurotron MicroCal 2000+
ANSI Type K thermocouple
calibration of tc channels
or equivalent
simulator* Voltage Reference
calibration of DC voltage and tc
channels
Electro Scientific DB62 or
Decade Resistance
calibration of RTD channels
equivalent
Anadex, Inc.FS-600
Frequency Synthesizer
calibration of frequency and flow
channels
Keithley Instruments 191
Digital Voltmeter
relay output and transducer
w/option 191
excitation tests
b. CALIBRATION PROCEDURES
(1) Using WindowsTM Explorer, located under Start/Program/TCIP, double click the TCIP folder.
(2) Start the program by double-clicking the file named Executive.exe. A startup splash screen,
displaying the program version and licensing agreement, will be displayed for a moment as follows:
Figure 1. Typical TCIP License Screen
(3) If the calibration of a test cell transducer is due, TCIP will display a Calibration Required screen,
similar to Figure 2, until acknowledged by the operator.
Figure 2. Transducers Require Calibration
