Practical instrument electronics, Basic operation – Practical Instrument Electronics 520B User Manual

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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

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EZ-CHECK™ SWITCH

SOURCE: Instantly output two preset thermocouple
temperatures by moving the EZ-CHECK™ switch to
the

“LO” position or “HI” position. For fast three

point checks select the

“DIAL” position. The

PIECAL 520B/521B will remember the last
“DIAL” value, even with the power off.
These values can easily be changed to suit the
calibration requirements. The temperatures stored in
the HI and LO positions are also used for Auto
Stepping.

SOURCE/OFF/READ Switch

Select “

SOURCE” to output in °C, °F, or millivolts.

Select “

READ” to read a thermocouple sensor

or millivolts.

EZ-DIAL™ KNOB

SOURCE: Turn the knob to adjust the output
level. Turn clockwise to increase the output,
counter clockwise to decrease the output in 0.1°
steps at a time. Push down and turn the
EZ-DIAL knob for faster dialing.
Press and hold the knob for two seconds to store
desired EZ-Check™ HI/LO points in SOURCE
mode.

Double click the knob to get into the PIECAL
520B/521B Configuration Mode. Use
configuration to select °C or °F, T/C Type (521
Only) and Auto Off On/Off.

CHANGING BATTERIES
Low battery is indicated by

“BAT” on the display.

Approximately one to four hours of typical
operation remain before the PIECAL 520B/521B
will automatically turn off. To change the batteries;
remove the optional rubber boot, remove the
battery door from the back of the unit by sliding
the door downward. This allows access to the
battery compartment. Replace with four (4) “AA”
1.5V batteries being careful to check the polarity.
Replace the battery door and replace the boot. All
stored configuration options (T/C Type,
EZ-CHECK Memories, etc., are reset to factory
settings when the batteries are removed.

Note: Alkaline batteries are supplied and
recommended for maximum battery life and
performance.

Basic Operation

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