Extech Instruments EN300 Скачать руководство пользователя | Manualshive

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User's Guide

5 in 1 Environmental Meter

Model: EN300

Anemometer
Humidity Meter
Light Meter
Thermometer
Sound Level Meter

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Содержание EN300

Страница 1: ...User s Guide 5 in 1 Environmental Meter Model EN300 Anemometer Humidity Meter Light Meter Thermometer Sound Level Meter ...

Страница 2: ...ets C I E photopic 4 Type K thermometer uses standard type K NiCr NiAl thermocouple input jack suitable for diverse application type K probes 5 The sound level meter meets IEC 61672 class 2 with A frequency weighting and Fast time response Common Features Built in microprocessor circuit assures excellent performance and accuracy Concise and compact button arrangement for ease of operation Record r...

Страница 3: ...the protection provided by the equipment may be impaired This device is not a toy and must not reach children s hands It contains hazardous objects as well as small parts that the children could swallow In case a child swallows any of them please contact a physician immediately Do not leave batteries and packing material lying around unattended they can be dangerous for children if they use them a...

Страница 4: ...Button 5 Power Button 6 Unit Zero Button 7 Air Speed Sensor 8 Thermocouple Input Socket l 9 RS 232 Output Terminal 10 DC power adaptor socket 11 Max Min Button 12 Function Button 13 C F Button Lux Ft cd Button 14 On rear Battery Compartment Tripod mount Stand 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Страница 5: ...5 The display will show the air velocity and the ambient temperature 6 Allow time for the reading to stabilize and note the values indicated Air velocity may fluctuate slightly Temperature Measurement Thermocouple 1 Plug a type K thermocouple probe into the Thermocouple Input Socket 2 Select the temperature function by pressing Function Button unit the display shows temperature units C or F 3 Cont...

Страница 6: ...ton to switch between Lux or Ft cd 3 The Display will show the light value Zero Offset calibration of Light Function For best results zero the light sensor prior to use in a dark environment To accomplish this completely cover the light sensor and then press the Unit Zero Button The zero point can drift due to environment temperature and battery power change It is recommended that the zero be chec...

Страница 7: ...ded by pressing the Hold Button once Previous recorded Max Min values will be erased and then return to REC function and continue recording Auto Power off To prolong the life of the batteries the instrument has an Auto Power off function The meter will automatically switch off if there are no button presses in any 10 minute period RS232 port The RS232 port is used to send measurement data to a PC ...

Страница 8: ...1 mA Other functions Approx DC 7 5 mA Weight 335 g 0 74 lb battery included Dimension HWD 248 x 70 x 34 mm 9 8 x 2 8 x 1 3 inch Electrical Specifications Anemometer Air velocity Temperature Units Range Res Accuracy ft min 80 to 5910ft min 1 3900ft min 3 F S 3900ft min 4 F S m s 0 4 to 30 0m s 0 1 20m s 3 F S 20m s 4 F S km h 1 4 to 108 0km h 0 1 72km h 3 F S 72km h 4 F S MPH 0 9 to 67 0mile h 0 1 ...

Страница 9: ...Microphone Electret condenser microphone Measurement Range 35 to 130 dB Auto range Resolution 0 1dB Frequency response 31 5Hz to 8 000Hz Weighting A frequency weighting network Time Response Fast Accuracy Meets IEC 61672 class 2 A weight Fast response Note Stated specification tests under the environment RF Field Strength less than 3 V M frequency less than 30 MHz only Note Specification stated fo...

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