PIECAL 520B & 521B
Thermocouple Source
Operating Instructions
PIECAL 520B & 521B
Thermocouple Source
Operating Instructions
(Shown without optional boot)
Product Description
• Easy to use
With the PIECAL 520B/521B you can check & calibrate all your thermocouple instruments.
• Take it without into the shop, plant or field
Carry it without worry - protect it with an optional 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 520B/521B works
with the thermocouples you use including types J, T, E, K, R, S, B, N, G, C, D, L (J-DIN), U
(T-DIN) and Platinel II. 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.
• 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.
99 Washington Street
Visit us at www.TestEquipmentDepot.com
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
THE RMO COUP LE SOUR CE
HI
322.1
TYPE K °C
TYP ES
J‐ T‐ E‐ K‐ R‐ S‐ B‐N ‐G ‐C ‐D ‐L ‐U ‐P ‐m V
SOURCE
HI
SET
OFF
LO
Push & Turn
Fast Dialing
Push & Hold
to Store
Double Click
for Options
Basic Operation
for
w SOURCE/OFF/READ Switch
Select “SOURCE” to output in °C, °F, or millivolts.
Select “READ” to read a thermocouple sensor
or millivolts.
e 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.
(Optional Boot Shown)
q EZ-CHECK™ SWITCH
SOURCE: Instantly output two preset thermocouple
temperatures by moving the EZ-CHECK™ switch to
the “LO” position or “HI” position.
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.
For fast three
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.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
Page 2
Configuration
Configure the Calibrator
Move w POWER SWITCH to “SOURCE” or
“READ”.
MODEL 51#B V#.##
DOUBLE CLICK
EZ-DIAL KNOB
FOR CONFIGURATION
Setup
Double click the
unit is on and the following displays will appear
for 15 seconds:
> EXIT 15
TEMP UNITS °C
T/C K
AUTO OFF ON
e DIAL KNOB at any time the
EXIT MENU - exits this menu immediately and
saves any changes. Menu will automatically exit
after 15 seconds of inactivity (countdown timer is
displayed).
TEMP UNITS - pressing the knob will toggle
between °C and °F.
T/C 520: pressing the knob will toggle between the
factory configured T/C Type and mV.
521: pressing the knob will cycle through T/C
types J, T, E, K, R, S, B, N, G, C, D, L (J-DIN), U
(T-DIN), Platinel II and mV.
AUTO OFF - If AUTO OFF is ON, the unit will
turn off after 30 minutes of inactivity to save
battery life. If AUTO OFF is OFF the unit will stay
on until the POWER SWITCH is moved to the off
position.
Turn the e DIAL KNOB to move through the
menu. Press the e DIAL KNOB to toggle
between OFF and ON or to scroll through the
settings.
Connections
Simulating thermocouples requires the use of
thermocouple or extension grade thermocouple
wire.
Plug thermocouple wires into the female
miniature thermocouple connector mounted in
the top end of the housing.
The PIECAL 520B/521B has two banana jacks
mounted in the top end of the housing. These
are not temperature compensated and are to be
used only for millivolt signals.
Note: All settings are remembered even with the
power off. Removing the batteries resets the
values to factory defaults.
Thermocouple Wire
Device
Requiring
Calibration
THE RMOC OUP LE S OUR CE
HI
322.1
TYPE K °C
TYP ES
J‐ T‐ E‐ K‐ R‐S ‐B ‐N ‐G ‐C ‐D ‐L ‐U ‐P ‐m V
SOURCE
HI
SET
OFF
LO
Push & Turn
for
Fast Dialing
Push & Hold
to
Store/Ramp
Double Click
for Options
(Optional Boot Shown)
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