Practical Instrument Electronics 422 - Manual (Page 4)

Page 4
Practical Instrument Electronics
82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • [email protected] • www.piecal.com
SOURCE
Choose this function to provide a simulated thermocouple signal into controllers, temperature
transmitters, indicators or any input devices that measure thermocouple sensors.
1) Disconnect the thermocouple sensor from the
device to be calibrated.
2) Select “ SOURCE” with slide switch w .
3) Connect a thermocouple wire (matching the type
of wire to sensor being simulated) with miniature
male T/C connector or bare leads under the
brass screws to the inputs of the device being
calibrated, making sure to check polarity. Millivolt
outputs (without cold junction) may be connect-
ed with a copper (white) miniature T/C connector
or the banana jacks with copper wire.
The output is adjusted in 0.1° (or 0.001 mV)
increments by turning the knob
e while the
EZ-CHECK™ switch q is in the “HI”, “LO” or “SET”
position. Press and turn the knob for faster dialing
with 10° (or 0.100 mV) increments.
The OVERLOAD indicator will light if excessive
voltage or current is detected by the calibrator.
Sourcing Thermocouple
AUTOMATED THERMOCOUPLE
CALIBRATOR
J‐T‐E‐K‐R‐S‐B‐N‐G‐C‐D‐L‐U‐P‐mV
READ
SOURCE
HI
SET
LO
MAX
READ
MIN
OVERLOAD
Push & Hold
to
Store/Step
Push & Turn
for
Fast Dialing
Double Click
for Options
OFF
HI TYPE K
22.4°C
17.332mV
°C
422.1
T/C
+ -
READ
Choose this function to measure temperatures with a thermocouple probe or sensor.
1) Disconnect the thermocouple sensor from any other device.
2) Select “
READ” with slide switch w .
3) Place the EZ-CHECK switch into the READ position.
4) Connect a thermocouple probe (matching the type of wire to sensor being measured) with min-
iature male T/C connector or bare wire under the brass screws to the sensor. Millivolt outputs
(without cold junction) are connected with a copper (white) miniature thermocouple connector or
to the banana jacks with cooper wire.
The PIECAL 422 measures the temperature signal and constantly updates the display with the
current temperature reading. Move the EZ-CHECK switch to MAX to see the highest temperature
reading and to MIN to see the lowest temperature reading. Press and hold the knob
e to clear the
MAX and MIN readings.
The OVERLOAD indicator will light if excessive voltage or current is detected by the calibrator.
Reading Thermocouple Sensors
Warranty
Our equipment is warranted against defective material and workmanship (excluding batteries) for a
period of three years from the date of shipment. Claims under warranty can be made by returning
the equipment prepaid to our factory. The equipment will be repaired, replaced or adjusted at our
option. The liability of Practical Instrument Electronics (PIE) is restricted to that given under our
warranty. No responsibility is accepted for damage, loss or other expense incurred through sale or
use of our equipment. Under no condition shall Practical Instrument Electronics, Inc. be liable for any
special, incidental or consequential damage.