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Read RTD Sensors
Choose this function to measure temperatures with an RTD
probe, sensor or any devices 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 (Platinum 10, 50, 100,
200, 500 & 1000 Ohm (alpha = 3850), Platinum 100 Ohm (alpha =
3902, 3916, 3926), Copper 10 & 50 Ohm, and Nickel 120 Ohm).
Note: Platinum (Pt) 100Ω
3850 is the most common RTD type.
Connect the PIE 525Plus to the RTD sensor using 2, 3 or 4 wires.
The PIE 525Plus 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 525Plus. This information is useful for
troubleshooting the sensor.
Signals above the maximum scale are limited by protection
circuitry with “OVER RANGE” on the display.
The PIE 525Plus 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 & MIN readings.
Pt 100
α
=3850
°c
MIN
138.51 Ω
100.00
OFF
OVERLOAD
Double Click
Menu
HI
SET
LO
SOURCE
MAX
READ
MIN
READ
Push & Hold
to
Store/Step
Push & Turn
for
Fast Dialing
Diagnostic Thermocouple
RTD & Milliamp Calibrator
2, 3, 4 Wire Detection
Loop Leak Detect ∙ Transmitter Supply
3 2 1
+
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