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Practical Instrument Electronics
Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
Operating Instructions
Source Frequency
Choose this function to provide a frequency signal into any input devices that
measure frequency.
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 FREQ for the FUNCTION and
20KHZ, 10000HZ, 1000HZ or 2000CPM for the RANGE.
Disconnect all input wires from the devices to be calibrated and connect the PIE
820PM to the input of the device matching polarity. Connect the Red lead from
jack (1) to the plus (+) input and black lead from jack (2) to the minus (-) input.
The green HZ SYNC LED pulses in synch with the output pulses and may be
used to calibrate optical pickups. The output signal is a zero crossing square
wave with a fixed amplitude of 6 V peak-to-peak from -1 and + 5 V.
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 1 count increments by turning the knob
e
. Press and turn the knob
for faster dialing with 100 count increments.
MAX
READ
MIN
READ
5
6
-
+
-
3 2
-2
Frequency Receiver Input
Flowmeter
Transmitter
Computer
Logger
Controller
DCS
OFF
HI
SET
LO
SOURCE
KHz
20.000
HI
2
+
-
1
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
