Extech Instruments EX540 Guia do Utilizador descarregar pdf (Página 17)

17 EX540-EU-EN V1.4-3/11

Enclosure Double molded, waterproof (IP67)

Shock (Drop Test) 2 meters (6.5 feet)

Diode Test Test current of 0.9mA maximum, open circuit voltage 2.8V DC

typical

Storage capacity 9999 records

RF transmit distance 10 meters (approx)

Transmitter Frequency 915MHz

Continuity Check Audible signal will sound if the resistance is less than 35Ω

(approx.), test current <0.35mA

Peak Captures peaks >1ms

Temperature Sensor Requires type K thermocouple

Input Impedance >10MΩ VDC & >9MΩ VAC

AC Response True rms

ACV Bandwidth 50Hz to 1000Hz

Crest Factor ≤3 at full scale up to 500V, decreasing linearly to ≤1.5 at 1000V

Display 40,000 count, backlit, liquid crystal with bargraph

Overrange indication “OL” is displayed

Auto Power Off 15 minutes (approximately) with disable feature

Polarity Automatic (no indication for positive); Minus (-) sign for negative

Measurement Rate 2 times per second, nominal

Low Battery Indication “

” is displayed if battery voltage drops below operating

voltage

Battery One 9 volt (NEDA 1604) battery

Fuses mA, µA ranges; 0.5A/1000V ceramic fast blow

A range; 10A/1000V ceramic fast blow

Operating Temperature 5ºC to 40ºC (41ºF to 104ºF)

Storage Temperature -20

C to 60

C (-4

F to 140

Operating Humidity Max 80% up to 31ºC (87ºF) decreasing linearly to 50% at 40ºC

(104ºF)

Storage Humidity <80%

Operating Altitude 2000meters (7000ft) maximum.

Weight 342g (0.753lb) (includes holster).

Size 187 x 81 x 50mm (7.36” x 3.2” x 2.0”) (includes holster)

Safety This meter is intended for origin of installation use and protected,

against the users, by double insulation per EN61010-1 and

IEC61010-1 2

Edition (2001) to Category IV 600V and Category

III 1000V; Pollution Degree 2.

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