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Practical Instrument Electronics
Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Operating Instructions
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 820PM to the inputs
of the device using 2, 3 or 4 wires. For 2 Wire RTDs connect the read lead into
jack (1) and the black lead into jack (2). For 3 wire RTDs add a black lead
plugged into jack (3) and for 4 wire RTDs add a red lead plugged into jack (4).
Signals above the maximum scale are limited by protection circuitry with “OVER
RANGE” on the display and the red OVERLOAD LED lit.
The PIE 820PM 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.
MAX
READ
MIN
READ
5
6
-
+
-
3 2
-2
OFF
HI
SET
LO
SOURCE
Pt 100
α
=3850 °F
LO
820.1
1
+
-
2
-
3
Hz SYNC
PRACTICAL INSTRUMENT ELECTRONICS
MODEL 820PM
Process Calibrator
mA · V ∙ TC · Ω · RTD · Hz
Double Click
Menu
Push & Turn for
Fast Dialing
Push & Hold to
Store/Step
piecal.com
EZ-CHECK™
All mA∙ Read V
TC
Source & Read mV
Hz
Source V
RTD • Ohms
OVERLOAD
4
1
+
+1
