Calibration
| Input Range: |
0-100% |
| Output Range: |
4-20mA |
- Open the access lid on the top of the unit (see Top View
Diagram).
- Select the output range using switch 1. The CLOSED
position selects a 10-50mA output. The OPEN position selects a 4-20mA output.
(Switches 2-6 are not used.)
- Connect the input to a potentiometer. Connect the output
loop to a voltage supply and monitor the output current (refer to the terminal
wiring).
- Set the potentiometer to the desired minimum.
- Adjust the coarse zero rotary switch to obtain an output
of either 4mA or 10mA. Adjust the fine zero for exact calibration. Note that it
may be necessary to switch the coarse zero up or down one position.
- Set the potentiometer to the desired maximum and perform
similar adjustments using the coarse and fine span potentiometer.
It may be necessary to repeat steps 4, 5, and 6 for best
accuracy. |
|
Field Mounting
The T752
is designed for installation in industrial field environments. A sealed,
diecast aluminum housing protects against corrosion, moisture, dust and
electrical noise such as radio-frequency (RFI) and electromagnetic (EMI)
interference. All circuit boards are urethane coated for environmental
protection and FM approval.
For protection against extreme moisture, hosedirected water
(NEMA 4) or hazardous environments, use Action’s T805 explosion-proof
housing. The T805 provides a 1/2" and 3/4" FPT port for easy hook-up and
operation in harsh process environments. Model T805 is FM and CSA certified for
use in Class I, Groups B, C & D and Class II, Groups E, F & G hazardous
locations. |
