Practical Instrument Electronics 830 - Manual (Page 36)

Page 34
Read RTD Sensors
Choose this function to measure temperatures with an RTD
probe, sensor or any device that output an RTD signal.
Move the power switch w to READ then Double Click the
EZ-DIAL knob to get into the 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.
Connect the PIE 830 to the RTD sensor using 2, 3 or 4 wires. The
PIE 830 automatically detects how many wires are connected
using a patented circuit and indicates each wire that is connected.
Any wires that are not connected or broken are indicated by the
830. This information is useful for troubleshooting the sensor.
Signals above the maximum scale are limited by protection
circuitry with “OVER RANGE” flashed on the display and the red
OVERLOAD LED lit.
The PIE 830 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.
83.0
°C
2 1 + - 3 RTD -
Pt 100
α
=3850