Calibration - Current Output; General; Procedure; Current Output Calibration - Emerson Rosemount Analytical HART 5081-A-HT Instruction Manual

Two-wire chlorine, dissolved oxygen, and ozone transmitter
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MODEL 5081-A
CALIBRATION — CURRENT OUTPUT

14.1 GENERAL

Although the transmitter outputs are calibrated at the factory, they can be trimmed in the field to match the read-
ing from a standard current meter. Both the 4 mA and the 20 mA outputs can be trimmed. During output calibra-
tion the transmitter is in Hold. The output current will go to the value programmed in Section 7.3.

14.2 PROCEDURE

1. Wire an accurate milliammeter as shown in Figure 14-1.
FIGURE 14-1. Current Output Calibration
CALIBRATE
OUtpUt CAL
EXIT
NEXT
ENTER
CALIBRATE
Cur
4
. 000
EXIT
NEXT
ENTER
CALIBRATE
Cur
20 . 00
EXIT
NEXT
ENTER
SECTION 14.0
2. Press CAL on the remote controller.
3. Press NEXT until the OUtPUt CAL submenu appears. Press ENTER.
4. Use the arrow keys to change the display to match the reading from the
milliammeter. Press ENTER.
5. Use the arrow keys to change the display to match the reading from the
milliammeter. Press ENTER. Press RESET to return to the main dis-
play.
SECTION 14.0
CALIBRATION — CURRENT OUTPUT
73

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