Detail CEM DT8820 4 IN 1 ENVIRONMENT METER
The 4 in 1 digital Multi-Function Environment Meter has been designed to combine the functions of Sound Level Meter, Light Meter, Humidity Meter, and Temperature Meter. It is an ideal Multi-Function Environment Meter Instrument with scores of practical applications for professional and home use.
The Sound Level function can be used to measure noise in factories, schools, offices, airports, home, etc., checking acoustics of studios, auditoriums and hi-fi installations. The Light function is used to measure illuminance in the field. It is fully cosine corrected for the angular incidence of light. The light sensitive component used in the meter is a very Stable, long life silicon diode. The Humidity/ Temperature is for use a humidity/ semiconductor sensor and K type thermocouple.
Specifications:
Display: Large 1999 counts LCD display with function of Lux , x10 Lux, C, F, % RH and dB, A & dB , C & dB, Lo & dB, Hi & dB, MAX HOLD, DATA HOLD indication.
Polarity: 80 Automatic, ( -) negative polarity indication.
Over-range: " OL" mark indication.
Low battery indication: The " BAT" is displayed when the battery voltage drops below the operating level.
Measurement rate: 1.5 times per second, nominal.
Storage temperature: -10 C to 60 C( 14 F to 140 F) at relative humidity
Auto Power Off: Meter automatically shuts down after approx.10 minutes of inactivity.
Power: One standard 9V, NEDA1604 or 6F22 battery.
Sound Level
Measurement range:
A LO ( low) ? Weighting: 35-100 dB
A HI ( High) - Weighting: 65-130 dB
C LO ( low) ? Weighting: 35-100 dB
C HI ( High) - Weighting: 65-130 dB
Resolution: 0.1 dB
Typical instrument frequency range: 30Hz-10KHz
Frequency Weighting: A, C ? weighting
Accuracy: 3.5 dB at 94 dB sound level, 1KHZ sine wave.
Illumination
Measuring Range: 20, 200, 2000, 20, 000lux
( 20, 000lux range reading x10)
Accuracy: rdg 510 dgts
Repeatability: 2.
Humidity/ Temperature
Measurement Range:
Humidity 25 ^ 95 RH
Temperature 50.0 C -4 F~ -20.0 C~ 122 F
( K-type) 200.0 C -20 C~ -20.0 C~ 750 C;
-4.0 F~ 200 F, -4 F~ 1400 F
Resolution: 0.1RH, 0.1 C, 1 C/ 0.1 F, 1 F.
Humidity: RH ( at 25 C, 35 ^ 95 5RH)
Response time of the humidity sensor: ^ approx. 6min.
Temperature:
3% rdg 2 C( at-20.0 C+ 200.0 C)
3.5% rdg 2 C( at-20.0 C^ + 75 0 C)
3% rdg 2 F( at-4.0 F^ + 200.0 F)
3.5% rdg 2 F( at-4 F^ + 1400 F)
Input Protection: 60V dc or 24V ac rms.
Size( HxWxD) : 251x63.8X40mm
Weight: 250g
Accessories:
Gift box with carrying case, batteries and user manual, K-type temperature probe, humidity probe, light probe.
Tampilkan Lebih Banyak