Milliamp Display For Rtd, Thermocouple, V & Ohms - PIE 525 Plus Operating Instructions Manual

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Operating Instructions
Double Click Menu - mA Display
mA MODE - pressing the knob will cycle through READ,
PWRM, READ%, PWRM% and OFF.
mA DISPLAY (For RTD, T/C, V & OHMS)
> EXIT (3/4) [SOURCE ONLY]
mA MODE OFF READ PWRM READ% PWRM%
HART 250Ω ON OFF
LEAK DETECT OFF ON
READ turns on the mA display and indicates current passing
through the loop proportional to the input of the transmitter
which is controlled by the output of the 525Plus. Choose
READ% to display in percent of 4-20 milliamps.
PWRM is POWER MEASURE which uses the internal loop
supply of the 525Plus to power up the transmitter while
indicating the current passing through the loop proportional to
the input of transmitter which is controlled by the output of the
525Plus. Choose PWRM% to display in percent of 4-20
milliamps.
If PWRM or PWRM% is selected an additional menu
selection of LEAK DETECT will appear. When LEAK
DETECT is turned on the 525Plus will display LEAK and
the amount of current that is uncontrolled in the loop. This may
be due to a faulty transmitter, corrosion causing a bridge to
ground or moisture present at some connection point. When
LEAK DETECT tests a loop with leakage the loop mA
signal will be affected.
HART 250Ω - turn on the 250Ω resistor if you are powering
up a HART transmitter. This provides the loop load required for
HART communication.
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