B&K 2250 Light Manual do Utilizador descarregar pdf (Página 55)

Hand-held Analyzer Type 2250 –

Instruction Manual

4.15 Power Supply

4.15.1 External Power to Instrument

Supply Voltage: 8 – 24 V DC, ripple voltage < 20 mV

Current requirement: min. 1.5 amp.

Power consumption: < 2.5 Watt

Connector (at cable): Lemo type FFA.00, positive at center pin.

4.15.2 External AC Main Supply Adapter

Part No.: ZG 0426

Supply Voltage: 100 – 120/200 – 240 VAC; 47 – 63 Hz

Connector: 2–pin IEC 320

4.15.3 External AC Main Charger (Optional Accessory)

Part No.: ZG 0444

Supply Voltage: 90 – 264 VAC; 47 – 63 Hz

Connector: 2–pin IEC 320

4.15.4 Battery for Type 2250

Part No.: QB 0061 Rechargeable Li-Ion battery

Voltage: 3.7 V

Capacity: 4800 mAh

4.15.5 Battery Lifetime

Typically: > 8 hours. However, if the instrument is used in low temperatures or there is extensive use

of the display backlight, this may reduce the time.

Battery Indicator: Remaining battery capacity may be read out in % or in time.

Battery Fuel Gauge: The battery is equipped with a built-in fuel gauge, which continuously measures

and stores the actual battery capacity.

Charge time: In instrument, 7 hours from empty. With external charger ZG 0444 (optional accessory),

5 hours.

Note: It is not recommended to charge the battery at temperatures below 0ºC or over 50ºC (32ºF to

122ºF). Doing this will reduce the battery lifetime.

4.16 Warm-up Time

Warm-up time: < 1 minute after reaching equilibrium with the ambient environment and switching on

power.

4.17 Real-time Clock

Nominal drift: < 12 seconds over a 24-hour period

BE171211.book Page 50 Thursday, May 27, 2004 1:01 PM

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B&K 2250 Light Manual do Utilizador Página 55