Extech Instruments 433201, 433202 User Manual

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User's Guide

Microprocessor Calibrator/Thermometer Model 433201 and 433202

Introduction

Congratulations on your purchase of Extech's 433201 (115V) or 433202 (220V) Microprocessor Thermocouple Calibrator/Thermometer. A precision millivolt signal is either input from a thermocouple (“Measure” mode”) or output to another thermocouple device (“Calibrate” mode) and the corresponding temperature, according to standard temperature tables, is displayed on the meter’s 4 digit LED display.

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Specifications

Calibrate & Measure Resolution Accuracy Type J -58 to 1830OF (-50 to 1000OC) Type K -58 to 2498OF (-50 to 1370OC) Type T -184 to 752OF (-120 to 400OC) Type E -58 to 1382OF (-50 to 750OC)

0.1

to 999.9O

above 999.9O

Type C 32 to 4172OF (0 to 2300OC) Type R 32 to 3182OF (0 to 1750OC) Type S 32 to 3182OF (0 to 1750OC) Type N -58 to 2372OF (-50 to 1300OC)

1.0°

±(0.15% rdg + 1.8

For1OC)

Voltage -5.00mV to +55.00mV

10µV ±(10µV + 1 digit) Cold junction compensation 0.03OC/OC (0.02OF/OF) Input impedance 10MΩ Sampling time 4 times / second Display 4 digit LED

Description

1. LED display

2. TYPE button

°C/°

F button

4. COARSE output adjust

5. Battery compartment

6. Output/Input mini connector

7. Measure/Calibrate switch

8. FINE output adjust

9. AC Adaptor connector

10. On/Off switch

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Operation

MEASURING TEMPERATURE

1. Press the red power switch to the ON position.

2. Select the “MEASURE” mode on the side panel slide switch

3. Select the thermocouple type of your measuring probe via the faceplate “TYPE” button. An LED will light above the T/C type selected in the display. Each time the “TYPE” button is pressed the indicator will advance one type.

4. Select

C or °F via the “C/F” button.

5. Insert the thermocouple probe into the sub-miniature female connector on the side panel. Be sure to check that it is inserted with the proper polarity and make sure the proper type is selected in the display.

6. Read the temperature on the LED display.

CALIBRATING THERMOCOUPLE DEVICES

1. Press the red power switch to the “ON” position.

2. Select the “CALIBRATE” mode on the side panel slide switch.

3. Select the thermocouple type of the device to be calibrated via the faceplate “TYPE” button. An LED will light above the T/C type selected in the display. Each time the “TYPE” button is pressed the indicator will advance one type.

4. Select

C or °F via the “C/F” button.

5. Insert the calibration cable into the sub-miniature female connector on the side panel. Be sure to check that it is inserted with the proper polarity and make sure the proper type is selected in the display.

Note: For greater accuracy, especially if there is a difference between the internal temperature of the calibrator and the device under calibration, we recommend that you use a thermocouple cable rather than the copper cable that is supplied with the calibrator. The thermocouple cable must match the thermocouple type of the device under calibration.

6. Connect the other end of the cable to the device to be calibrated.

7. Allow the proper warm up time for the Calibrator and the Device to be calibrated. At least 30 minutes is typically recommended.

8. Adjust to the desired output temperature using the up/down “COARSE” adjustment buttons on the faceplate and the “FINE” adjustment knob on the side panel. The output temperature will be displayed on the LED display. The “COARSE” adjustment has 16 increments and will display “high” or “low” when out of range.

DIRECT mV CALIBRATION and MEASUREMENT

For directly calibrating or measuring thermocouple devices in mV rather than in temperature, press the “TYPE” button until the F or C in the LED display disappears (only the “

” remains). The LED display will now indicate in mV rather than temperature units.

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

Support Hotline (781) 890-7440

Tech support: Ext. 200; Email: support@extech.com Repair/Returns: Ext. 210; Email: repair@extech.com

Website: www.extech.com

BATTERY

WARNING: DO NOT CONNECT THE AC ADAPTOR TO THE METER IF A 9V

ALKALINE BATTERY IS INSTALLED.

For continuous use the AC/DC Adaptor/Recharger.

For portable operation use the 8.4V NiCad battery. Replace batteries using the following procedure:

Close the case and insert a coin or flat screwdriver into the slot at the top of the meter. Snap the cover in the direction of the arrow and then open the cover of the meter. Remove the battery cover and connect the snap terminals to the battery terminals. Close the battery cover firmly.

Charge the battery for 24 to 48 hours before its first use. An overnight charge will enable continuous use for approximately 45 minutes. A full charge will provide one hour of

continuous use. Turning the meter OFF when not in use will prolong battery life. A 9V alkaline battery may be used in place of the rechargeable (8.4V) NiCad battery that

comes with the unit. A flashing “F” or “C” on the LED display indicates a low battery condition.

Warranty

EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies on sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website at www.extech.com

(click on ‘Contact Extech’ and go to ‘Service Department’ to request an RA number). A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied.

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Service Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy.