Greenlee IPM-300 Manual De Instrucciones página 15

Operation (cont'd)
Calibrate Milliamp Inputs
Select the Source mode by pressing the SOURCE/READ button until "SOURCE" appears on the
display.
Display: mA, mA% (percent of 4 mA to 20 mA)
This function provides an output from 0.00 mA to 24.00 mA. The compliance voltage is a
nominal 25 VDC to provide the driving power to the milliamp receivers.
The normal industrial process control loop current range is 4 mA to 20 mA (0% to 100%).
Intermediate points are as follows:
Current 0 mA
Percent –25%
1. Turn the Selector knob to mA.
2. Connect the black and red leads to the meter as shown.
3. Repeatedly press the RANGE/TYPE button until "SOURCE" and "mA" or "SOURCE" and
"% mA" appear on the display.
4. Disconnect one or both input wires from the device to be calibrated.
5. Connect the red lead of the meter to the plus (+) input of the device and the black lead to
the minus (-).
6. With the toggle switch at SET, adjust the output to the desired value.
7. Flip the toggle switch to HI or LO to use the stored values. See the Storing Output Values
section to change the stored values.
Milliamp
Receiver Input
Controller
Transmitter
Computer
Logger
I/P
DCS
All manuals and user guides at all-guides.com
4 mA 8 mA
0% 24%
12 mA 16 mA
50% 75%
1
5V MAX
!
INPUT
!
45V
MAX
INPUT
2
IPM-300
20 mA 24 mA
100% 125%
4 5
!
300V
MAX
INPUT
45V MAX
!
INPUT
T/C
– +
3
15