Practical Instrument Electronics 820-ELITE - Manual (Page 19)

Page 17
The PIE 820-ELITE is
supplying the loop voltage.
There is a control loop
error. This may be a
transmitter (set for upscale
burnout) with a bad or
missing sensor, or a short
in the loop. The PIE 820-ELITE is
supplying the loop voltage.
A calibrated transmitter is
limiting the loop current to
12.00 mA. An additional
0.28 mA is not controlled
by the transmitter and is
leaking somewhere in the
loop.
LEAK ERROR =
OVER RANGE
PWR MEAS LEAK ERROR = 00.28
12.280
mA
PWR MEAS
Typical Error Conditions
READ
SOURCE
HI
SET
LO
OFF
MAX
READ
MIN
READ
OVERLOAD Hz SYNC
Double Click
Menu
Push & Turn
for
Fast Dialing
Push & Hold
to
Store/Step
mA ∙ V ∙ pH ∙ TC ∙ Ω ∙ RTD ∙ Freq ∙ Pressure
12.280
PWR MEAS
LEAK ERROR = 00.28
mA
Typical
2-Wire
Transmitter
+ IN - REF +OUT-
Transmitter Input
Sensor
Process Signal
Simulated Input
12.280
PROCESS
INDICATOR
Using Ground Leak Detection