![PIE PIE 830PM Скачать руководство пользователя страница 11](http://html1.mh-extra.com/html/pie/pie-830pm/pie-830pm_manual_1555584011.webp)
Page 9
Practical Instrument Electronics
Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Operating Instructions
MODE - pressing the knob will cycle through OFF, LINEAR, NONLINEAR. When
setup to read pressure SQ ROOT replaces NONLINEAR.
LINEAR turns on the mA display and regulates the loop current linear with the
input signal. For thermocouples & RTDs this is linear relative to the temperature
between zero and span of the sensor input. This mimics the operation of a
digital temperature transmitter or other linearizing transmitters.
NONLINEAR (applies only to thermocouples and RTDs) turns on the mA
display and regulates the loop current linear with base units (millivolts or
ohms) of zero and span of the sensor input. This mimics the operation of an
analog temperature transmitter without linearizing.
SQ ROOT turns on the mA display and regulates the loop current with square
root extraction of zero and span of the pressure module input. This mimics the
operation of a differential pressure transmitter setup for square root extraction.
BURNOUT selects the failure mode of the calibrator when the input signal is lost or
beyond the input scale.
Down sets the output to 1.0 mA and UP to 21.5 mA when
sensor failure is detected.
LOOPSCOPE turns on the Loop Diagnostic display which simultaneously
indicates the current, voltage and resistance of the loop. When enabled the
LOOPSCOPE also indicates errors by flashing the LED and writing diagnostic
messages on the display. Messages include
LOW LOOP VOLT, HIGH LOOP
VOLT and HIGH LOOP IMPED. With LOOPSCOPE on the 830PM occasionally
performs a test on the loop. During this short test the loop mA signal will be
affected.