Model DT333-0700
4-Wire mV/TC Dual Transmitter w/USB
Acromag, Inc. Tel: 248-295-0880
- 16 -
http://www.acromag.com
- 16 -
https://www.acromag.com
Quick Overview
–
Windows...
Calibration
Input…
Set the Input Range of the channel to calibrate in the I/O
Config/Test page and be sure to click the
[Send I/O
Config]
button before attempting calibration. In the
Calibration page at left, select the channel and click
[Input Cal Instructions]
to begin input calibration.
When you click
[Zero]
or
[Full Scale]
of the Calibration
Input section, you will be prompted to apply a specific
voltage signal at TB1/TB3 corresponding to your selected
channel/input range. Once you apply this signal, click
[OK]
of the prompt and follow the on-screen
instructions to complete input calibration.
Calibration
Output…
Click the
[Output Cal Instructions]
button to begin
output calibration. You will be prompted to adjust the
input signal to drive the output to its precise output
range zero or full-scale level. Once the output is set to
zero or full-scale, you simply click the corresponding
[Zero]
or
[Full-Scale]
button of Calibration - Output to
set the output range zero or full-scale endpoint.
Calibration Temperature Reference...
This model embeds two very accurate temperature
sensors in the plastic around the input ± terminals at TB1
and TB3 to cold-junction compensate thermocouple
signal wires. To explain, the voltage measured from a
T/C reflects the difference in temperature between each
end. To discern the temperature being sensed, it is
necessary to know the temperature at the other end,
usually referred to as the Cold Junction.
This section calibrates the cold-junction temperature
reference used for cold junction compensation of T/C
input types. Click the
[Instructions]
button to begin
reference calibration and you will be prompted to
connect a TC Type J ice point reference to the input (see
screen at left). Note that you must already have the
Type J TC range calibrated to accomplish CJC calibration.
Factory Settings (in Case of Trouble or for Sanitation)
•
Restore unit to its original factory calibration.
•
Restore unit to its initial factory configuration.
You can click the
“
Restore Factory
”
buttons if you ever
misconfigure or improperly calibrate a transmitter such
that its operation appears erratic, or for sanitation
purposes when decommissioning a module.
Calibration Status (Bottom of Calibration Screen)...
•
Displays communication status messages relative to
the calibration process.
