Practical instrument electronics, Sourcing thermocouple storing ez-check outputs – Practical Instrument Electronics 520B User Manual

Page 4

Practical Instrument Electronics

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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

3) Connect a thermocouple wire (matching the type

of wire to sensor being simulated) with miniature
male T/C connector to the inputs of the device
being calibrated, making sure to check polarity.
Millivolt outputs (without cold junction) may be
connected 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

while the

EZ-CHECK™ switch

is in the “HI”, “LO” or “SET”

position. Press and turn the knob for faster dialing
with 10° (or 0.100) increments.

Sourcing Thermocouple

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. Press and hold the

EZ-Dial knob until

STORED appears to store the value. Release the EZ-Dial knob.

2) Store your low (ZERO) output temperature by moving the EZ-CHECK switch to the

LO position

and turn the

EZ-Dial knob until the desired temperature is on the display. Press and hold the

EZ-Dial knob until

STORED appears to store the value. Release the EZ-Dial knob.

3) Instantly output your SPAN and ZERO temperature outputs by moving the EZ-CHECK switch

between HI and LO. You may also select any third temperature output (such as mid-range) using
the SET position on the EZ-CHECK switch.

TYPE K °C

OFF

Push & Hold

to Store

Push & Turn

for

Fast Dialing

Double Click

for Options

THERMOCOUPLE SOURCE

SOURCE

SET

J‐T‐E‐K‐R‐S‐B‐N‐G‐C‐D‐L‐U‐P‐mV

TYPES

322.1

(Optional Boot Shown)

This manual is related to the following products:

521B