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Extech Instruments 407303 User Manual
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Extech Instruments 407303 User Manual

Extech Instruments 407303 User Manual

Heavy duty conductivity/temperature meter
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User's Guide
Heavy Duty Conductivity / Temperature
Model 407303
Introduction
Congratulations on your purchase of Extech's Conductivity/ Temperature Meter. This
meter offers a dual display for Conductivity and Temperature, a Conductivity Cell
calibration adjustment, temperature compensation, and a RS-232 PC Interface. This meter
is shipped fully tested and calibrated and with proper use will provide years of reliable
service.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
Back to the Extech 407303 Product Page

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Summary of Contents for Extech Instruments 407303

  • Page 1 Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 User's Guide Visit us at www.TestEquipmentDepot.com Back to the Extech 407303 Product Page Heavy Duty Conductivity / Temperature Model 407303 Introduction Congratulations on your purchase of Extech’s Conductivity/ Temperature Meter. This meter offers a dual display for Conductivity and Temperature, a Conductivity Cell calibration adjustment, temperature compensation, and a RS-232 PC Interface.

  • Page 2: Specifications

    Specifications Circuit Custom LSI microprocessor circuit Display Dual function 2000 count LCD with contrast adjust Measurement units Conductivity in Siemens (µS and mS); Temperature in Data hold Freezes displayed value Sensor Structure Remote Conductivity Sensor: 1K Carbon rod type Temperature sensor: Precision thermistor Temperature 0 to 5% per °C over the range of 32 to 140°F (0 to 60°C) compensation adjust...

  • Page 3: Meter Description

    Meter Description 1. Sensor input plug – The plug is keyed so that it can only be inserted one way into the sensor jack at top of meter 2. RS-232 PC Interface jack – For use with Model 407001 Data acquisition software and interface cable kit 3.

  • Page 4: Operation

    Operation Connecting the Sensor 1. Remove the protective sheath from the sensor tip before use. Retain the sheath for sensor storage. 2. The sensor connects to the input jack at the top of the meter. The sensor jack is keyed, thereby allowing the sensor plug to be inserted from only one direction.

  • Page 5: Conductivity Calibration

    Data Hold To freeze the LCD display, press the HOLD button. The 'DH' display icon will appear on the LCD when the meter is in the Data Hold mode. Press HOLD again to return to normal operation (the 'DH' icon will switch off). MIN/MAX/AVG Record/Recall Mode 1.

  • Page 6: Battery Replacement

    RS-232 PC Interface This meter is equipped with an RS-232 PC Interface jack. The jack is located at the top of the meter next to the sensor input jack. The interface is intended for use with the data acquisition software and hardware kit. For more information contact Extech or refer to the Software User Manual.