PIE PIECAL 322 Operating Instructions Manual
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PIE PIECAL 322 Operating Instructions Manual

Automated thermocouple calibrator
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• Easy to use
With the PIECAL 322 you can check & calibrate all your
thermocouple instruments and measure thermocouple
sensors.
• Take it with you into the shop, plant or field
Carry it without worry - it comes protected with a rubber
boot and rugged, low profile switches. Easy to operate
even in the dark areas of the plant with the backlit display.
• Calibrate directly in temperature (°C & °F)
Stop carrying around a millivolt source and thermocouple
tables. The PIECAL 322 works with the thermocouples
you use including types J, T, E and K. Easily set any value
quickly to within 0.1° with the adjustable digital
potentiometer "DIAL" plus store any three temperatures
for instant recall with the EZ-CHECK™ switch.
• Calibrate quickly with automatic output stepping
Choose between 2, 3, 5, 11 steps and ramp to
automatically increment the output in 100%, 50%, 25%,
10% of span or continuously ramp between span and
zero. Select the step time to match your system from 5, 6,
7, 8, 9, 10, 15, 20, 25, 30 and 60 seconds.
• Compatible with all process instruments
Connect directly to the thermocouple inputs of smart
transmitters, PLCs, DCS and multichannel recorders and
verify their outputs or displays.
• Measure Thermocouple Sensors
Trouble shoot sensor connections and find broken wires. The PIECAL 322 measures the
thermocouple in degrees C or F.
• Calibration Lab Accurate & Stable
The internal cold junction thermistor is accurate to ±0.1°C and is traceable to NIST. The sensor
is thermally bonded to an isothermal mass which includes brass blocks with screw terminals for
connection of bare thermocouple wires along with a miniature thermocouple connector for fast
Connections. The circuitry uses an extremely stable voltage reference and low drift components
which make the PIECAL 322 more accurate than most other handheld and benchtop
thermocouple calibrators.
82 East Main Street Suite 3.14 • Webster, NY 14580 Tel: 585.872.9350 • Fax: 585.872.2638 • sales@piecal.com • www.piecal.com
Copyright © 2017 All rights reserved • 322-9002 - Rev I 3 May 2017
Automated Thermocouple Calibrator
Automated Thermocouple Calibrator
Operating Instructions
Operating Instructions

Product Description

Practical Instrument Electronics
Model 322
Model 322
Page 1

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Summary of Contents for PIE PIECAL 322

  • Page 1 PLCs, DCS and multichannel recorders and verify their outputs or displays. • Measure Thermocouple Sensors Trouble shoot sensor connections and find broken wires. The PIECAL 322 measures the thermocouple in degrees C or F. • Calibration Lab Accurate & Stable The internal cold junction thermistor is accurate to ±0.1°C and is traceable to NIST.
  • Page 2 EZ-CHECK™ SWITCH SOURCE: Instantly output two preset thermocouple Double click the knob to get into the PIECAL 322 temperatures by moving the EZ-CHECK™ switch to Configuration Mode. Use configuration to select the “LO” position or “HI” position. For fast three °C or °F, T/C Type, Backlight On/Off, Step Size,...
  • Page 3 Move (default). CJC should only be turned off if an “READ”. external cold junction compensator or ice bath is used with the PIECAL 322. DOUBLE CLICK EZ-DIAL KNOB AUTO OFF - If AUTO OFF is ON, the unit will FOR CONFIGURATION turn off after 30 minutes of inactivity to save V#.##...
  • Page 4 (without cold junction) are connected with a copper (white) miniature thermocouple connector or to the banana jacks with cooper wire. The PIECAL 322 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.
  • Page 5 Storing EZ-CHECK Outputs STORING HI and LO EZ-CHECK Outputs Choose this function to provide a simulated thermocouple signal into controllers, temperature transmitters, indicators or any other input device that measure thermocouple sensors. 1) Store your high (SPAN) output temperature by moving the EZ-CHECK switch to the HI position and turn the EZ-Dial knob until the desired temperature is on the display.
  • Page 6 Thermocouple Ranges & Accuracies Based on ≤ ± (0.008 % of Reading + 0.006 mV) Degrees C Accuracy Degrees F Accuracy ISA/ANSI Type Range Range Material Color -200.0 to -180.0 ±0.3° -328.0 to -292.0 ±0.5° +Iron White -Connstantan -180.0 to -50.0 ±0.2°...
  • Page 7 PIECAL 322 Specifications Unless otherwise indicated all specifications (except Cold Junction) are rated from a nominal 23 °C, 70 % RH for 1 year from calibration General Accuracy ±(0.008% of Reading + 0.006 mV) Cold Junction Compensation ±0.1 °C - Thermistor traceable to NIST for 11 years Millivolt Range -13.000 to 80.000 mV...
  • Page 8 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.

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