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Extech Instruments 480823

Extech Instruments 480823
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User's Guide
Electromagnetic Field Meter
Model 480823

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Extech Instruments 480823 Specifications

General IconGeneral
Model480823
Measures (Anemometer)Air Velocity, Air Flow, Temperature
Data HoldYes
Min/MaxYes
CategoryAnemometers
Measurement Range (Moisture)10 to 95%RH
Air Flow Range0 to 999, 900 CFM or CMM
Resolution0.1%RH
Weighting NetworksA, C
Time WeightingFast, Slow
DisplayLCD
Battery Type9V
Power SourceBattery
TypeAnemometer, Hygrometer, Sound Level Meter
Air Velocity Range0.4 to 30.0 m/s; 1.4 to 108.0 km/h; 0.9 to 67.0 mph; 0.8 to 58.3 knots; 80 to 5910 ft/min

Summary

Introduction

Warranty Information

Product Specifications

Display

Features a 0.5" (13mm) 3-1/2 digit LCD with low battery and overload indicators.

Measurement Rate

Takes readings approximately every 0.4 seconds.

Maximum Ranges and Resolution

Measures up to 20µTesla (0.01) or 200mGauss (0.1).

Accuracy

Accuracy is rated at ± (4% + 3 digits) at 50/60Hz.

Frequency Bandwidth

Operates within a 30 to 300Hz frequency bandwidth for single-axis measurements.

Over-range Indication

Displays "1" on the left side of the LCD to indicate an overload condition.

Operating Temperature and Humidity

Functions between 32-122°F (0-50°C), with RH limits of 90% (0-35°C) and 80% (35-50°C).

Power Source

Powered by a standard 9V battery.

Power Consumption

Consumes approximately 3mA DC during operation.

Dimensions

Compact size of 5.2 x 2.8 x 1" (131 x 70 x 25mm).

Weight

Lightweight design at 0.36 lbs. (165g).

Meter Description and Components

LCD Display

The primary digital readout screen for measurements and status.

EMF Sensor

The component that detects and measures electromagnetic fields.

PowerUnits Switch

Controls the device's power and allows selection between Gauss and Tesla units.

Operating the Meter

Switching Units

Set the switch to 'Gauss' or 'Tesla' mode before measurement.

Taking Readings

Slowly move the sensor towards the test device and observe the LCD reading.

Positioning for Measurement

Vary meter angles to observe how positioning affects EMF readings.

Recording Results

Note the highest reading obtained from various measurement positions.

Overload Condition

A '1' on the left of the LCD indicates radiation exceeds meter capability.

EMF Exposure Considerations

Battery Replacement

Calibration and Repair Services

Customer Service Contact

Call 781-890-7440 for service, technical support, or repair information.

Website Resources

Visit www.extech.com for the latest guides, software, and product info.

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