Practical Instrument Electronics 820-ELITE - Manual (Page 29)

Page 27
Read RTD Sensors
Choose this function to measure temperatures with an RTD
probe or sensor.
Move the power switch w to READ then Double Click the
EZ-DIAL knob to get into the Double Click Menu. Turn the knob
to scroll through the settings and press the knob to make your
selection. Select RTD for the FUNCTION, °F or °C for the UNITS
and RTD (Choose from one of Platinum 100Ω, or 1000Ω, Copper
10Ω or 50Ω, Nickel 120Ω or 110Ω curves). Note: Pt 100Ω 3850
is the most common RTD type. You must also select the WIRE
MODE for 2W, 3W or 4W to match the 2, 3 or 4 wires on the RTD
sensor.
Disconnect all wires from the sensor and connect the PIE
820-ELITE to the inputs of the device using 2, 3 or 4 wires.
Signals above the maximum scale are limited by protection
circuitry with “OVERRANGE” flashed on the display and the red
OVERLOAD LED lit.
The PIE 820-ELITE measures the input signal and constantly
updates the display with the current reading. Move the
EZ-CHECK switch
q to MAX to see the highest reading and to
MIN to see the lowest reading. Press and hold the knob e to
clear the MAX and MIN readings.
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
READ
Pt 100
α
=3850 °F
820.1
3W 2W 1W
^ ^ ^
mA ∙ V ∙ pH ∙ TC ∙ Ω ∙ RTD ∙ Freq ∙ Pressure