EXTECH 433201A, 433202A User Guide
User's Guide
Microprocessor Calibrator/Thermometer
Models 433201A and 433202A
Introduction
Congratulations on your purchase of the Extech 433201A (115V) or 433202A (220V)
Microprocessor Thermocouple Calibrator/Thermometer.
In the ‘Measurement’ mode, a millivolt (mV) signal is accepted from a thermocouple and
is displayed on the 4-digit LCD display. A built-in temperature offset feature can be used
to compensate for variations found in standard thermocouples. By adjusting the offset,
measurement accuracy for a particular thermocouple can be optimized for a particular
temperature.
In the ‘Source’ mode, a millivolt signal is output to an external device with the
corresponding temperature (according to standard temperature tables) displayed on the
LCD display. Preset temperature settings (source mode only) according to thermocouple
type are stored in five memory locations for easy recall.
If desired, the meter can be switched to the mV mode where Measurement and Source
values can be displayed in millivolts rather than temperature.
Careful use of this device will provide years of reliable service.
2
433201A V1.5 05/07
Description
1. LCD display – Temperature values can be displayed in
adjustable display can be easily moved to the best viewing angle.
2. POWER/MODE button – Press to power meter on/off and to select the desired
mode of operation. With the meter powered on, momentarily press the
POWER/MODE button (<2 sec) to toggle between MEASURE and SOURCE mode.
In MEASURE mode the meter displays the temperature or mV value for an attached
thermocouple or thermocouple simulator. In the SOURCE mode, the meter outputs
a mV signal.
To power off, press and hold the POWER/MODE button for more than 2 seconds.
3. FINE/COARSE output adjustment buttons – Use the ▼/▲ buttons to set the desired
temperature. Press and hold for COARSE adjustment; momentarily press for FINE
adjustment.
oC/o
4.
F button – Press to select the desired unit of measure
5. TYPE button – Press to select a thermocouple type
6. MEM – In SOURCE MODE, the Memory button provides access to five memory
locations with preset output values depending on which thermocouple type is being
used.
oC/o
F or in millivolts. The
Memory
Location
M1
M2
M3
M4
M5
Type
J, K, C, R, S, N
o
32.0
F
o
(0.0
C)
o
212.0
F
o
(100.0
C)
o
932.0
F
o
(500.0
C)
o
1382.0
F
o
(750.0
C)
o
1832.0
F
o
(1000.0
C)
Type T Type E mV
32.0
(0.0
212.0
(100.0
392.0
(200.0
572.0
(300.0
752.0
(400.0
o
F
o
C)
o
F
o
C)
o
F
o
C)
o
F
o
C),
o
F
o
C)
32.0
(0.0
212.0
(100.0
482.0
(250.0
932.0
(500.0
1382.0
(750.0
o
F
o
C)
o
F
o
C)
o
F
o
C)
o
F
o
C)
o
F
o
C)
10.00mV
25.00mV
40.00mV
50.00mV
0mV
7. Output/Input mini connector – Thermocouples, thermocouple wire, and calibration
cables are connected here.
8. AC adaptor/recharger jack
9. Battery compartment – Houses the supplied 9V Nickel Metal Hydride rechargeable
battery. An alkaline battery can also be used.
10. Neck Strap Posts- Attach the neck-strap to the two posts on the front corners of the
meter.
3
433201A V1.5 05/07
Loading...