Extech Instruments 407355 Manual de instrucciones descargar pdf (Pagina 2)

2 407355 Ver. 1.02 9/99

2. SPECIFICATIONS

Applicable Standards ANSI S1.25-1991 A-weighting; ISO-1999, BS 6402-

1983

Microphone 1/2-inch electret condenser microphone w/ 31” cable

Display Multifunction 4-digit LCD Display

DOSE Range .01 to 9999% DOSE

Criterion Level Selectable 80, 84, 85, 90dB

Threshold Level Selectable 70 to 90dB (1dB Steps )

Exchange Rate Selectable 3, 4, 5, 6dB

High Level Detector 115dBA

Peak Flag 140dBA

Sound level range 70 to 140 dBA

Accuracy ±1.5dB

Frequency Weighting ‘A’ type

Frequency Response 20Hz to 10KHz

Response time Selectable (F) FAST / (S) SLOW

Operating Temp/Humidity 32 to 122

F (0 to 50

C) ,10-90%RH

Storage Temp/Humidity 14 to 140

F (-10 to 60

C) ,10-75%RH

Power supply 4 size ‘AAA’ alkaline batteries; 32 hour battery life

Dimensions 4.2 × 2.4 × 1.3” (106 × 60 × 34mm)

Weight 11.2 oz. (350g)

Accessories Carrying case, screwdriver, batteries, Windows

software, RS-232 cable, 9 pin to 25 pin gender adapter

CE Certification:

CE-mark indicates compliance EMC Directive

EMC

Emission

EN50081-1 (1992): Generic emission standard.

Part 1 : Residential, commercial and light industry

EN50081-2 (1993): Generic emission standard.

Part 2: Industrial environment

CISPR22 (1993): Radio disturbance characteristics of information

technology equipment. Class B Limits

FCC Rules, Part 15: Complies with the Limits for a Class B digital

device

EMC

Immunity

EN50082-1 (1992): Generic immunity standard.

Part 1: Residential, commercial and light industry

RF immunity implies that sound level indications of 70dB or greater will

be affected by no more than ±1.5dB

EN 50082-2 (1995): Generic immunity standard.

Part 2: Industrial environment RF immunity implies that sound level

indications of 70dB or greater will be affected by no more than ±1.5dB

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INSTRUCTION MANUAL 1
Model 407355 1

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Extech Instruments 407355 Manual de instrucciones Pagina 2

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