Extech Instruments EA11 User Manual

EA11 V1.1 06/04
3
Meter Description
1. Thermocouple input connector
2. LCD display
3. Max/Min button
4. Power button
5. 0.1° resolution button
6. Data hold button
7. 1° resolution select button
8. C/F units select button
Operation
Connecting thermocouples
1. This meter accepts a K-type thermocouple with spade plugs (sub-miniature type with
one spade wider than the other).
2. Plug the thermocouple into the meter's thermocouple input jack.
Turn Power ON
1. Press the button to turn power on. The meter will perform a short self-test.
2. If a probe is not inserted to the meter, an “OL” indication will appear on the display.
Selecting °C or °F units of measure
Press the °C/°F button to select the desired temperature unit of measure.
Selecting 0.1° or 1° resolution
Press the 0.1° or 1° button to select the desired temperature resolution.
MAX/Min Function
Press the MX/MN button to capture the Minimum (MN) and Maximum (MX) temperature
values. Press and Hold the MX/MN button until the display returns to standard operation to
exit the MX/MN function.
Data Hold
Press the HOLD button to freeze the reading in the display. The 'H' icon will appear on the
top center of the display. Press the HOLD button again to return to normal operation (the
'H' icon will disappear).
Turning Power OFF
Press the button to turn power off.

Extech Instruments EA11 Specifications

General

Type	Digital Thermometer
Weight	5.3oz (150g)
Response Time	1 second
Battery Type	9V alkaline
Resolution	0.1°
Accuracy	±3% of reading or 3°C/5°F
Basic Accuracy	±3% of reading or 3°C/5°F
Display	LCD
Battery	9V
Operating Temperature	32°F to 122°F (0°C to 50°C)
Operating Humidity	<80%RH
Dimensions	110 x 64 x 34mm
Battery Life	Approximately 200 hours

Summary

Product Specifications

General Specifications

Details general specifications including display, input protection, update rate, and power.

Power Supply Details

States the device is powered by 6 AAA batteries.

Operating Temperature Range

Defines the safe operating temperature range from 32-104°F (0-40°C).

Meter Description and Operation

Meter Components

Identifies key components of the thermometer, including connectors, display, and buttons.

Connecting Thermocouples

Instructions on how to connect a K-type thermocouple to the meter's input jack.

Powering On and Off

Unit and Resolution Selection

Max/Min Function

Data Hold Function

Calibration and Support Services

Repair and Calibration Services

Information on Extech's repair, calibration, and NIST certification services.

Customer Support Contact

Provides contact details for technical support and repair/returns.