407303 Datasheet, PDF (3/6 Pages) Extech Instruments Corporation. – Heavy Duty Conductivity / Temperature

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. LCD Display indicates Conductivity and Temperature, unit of measure, and other user
alert symbols discussed in this manual
4. Push-buttons:
• POWER – Press to turn the meter ON or OFF
• HOLD – Press to freeze the displayed reading
• C/F – Press to select the temperature unit of measure
• RECORD – Press to begin tracking the MIN/MAX readings
• RECALL – Press to retrieve the MIN/MAX readings
• FACTOR ADJUST – Used with the TEMP button for temperature compensation
• RANGE – Slide switch to manually select the measurement range
• TEMP – Temperature coefficient compensation button
5. Battery compartment (rear) – Remove protective holster to access the compartment
6. LCD contrast adjustment dial – Adjust to desired view setting
7. Sensor top – Conductivity and Temperature sensor reside in sensor top
8. Rubber protective holster – Remove holster to access rear battery compartment
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407303 V3.1 01/06