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Practical Instrument Electronics
Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Operating Instructions
Source RTD
Choose this function to provide a simulated RTD signal into controllers,
temperature transmitters, indicators or any input devices that measure RTD
sensors.
Move the power switch
w
to SOURCE 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.
Disconnect all sensor wires from the devices to be calibrated and connect the
PIE 820PM to the inputs of the device using 2, 3 or 4 wires. For 2 Wire RTDs
connect the red 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).
Instantly output your SPAN and ZERO output settings by moving the EZ-CHECK
switch between HI and LO. You may also select any third output setting (such as
mid-range) using the SET position on the EZ-CHECK switch. The output is
adjusted in 0.1° increments by turning the knob
e
. Press and turn the knob for
faster dialing with 10.0° increments.
MAX
READ
MIN
READ
5
6
-
+
-
3 2
-2
Instrument with RTD Input
Controller
Temperature Transmitter
Temperature Indicator
Temperature Trip or Alarm
OFF
HI
SET
LO
SOURCE
Pt 100
α
=3850 °C
LO
820.0
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
