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Logger, Power supply – Atec Fluke-1740 Series User Manual

Page 6

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6 Fluke Corporation 1740 Series Three-Phase Power Quality Loggers Memobox

Logger

Power supply

Functional Range

88 V to 660 V absolute, 50 Hz/60 Hz
100 V to 350 V dc
Internal fuse: 630 mA T

Power consumption

5 Watts

Ride through

Fluke 1745: Internal battery for typ. > 5 hours ride through with intelligent power

management
Fluke 1743/44: 3 sec Capacitor

Fuse

Power supply fuse can be replaced in service facility only. Supply can be connected in

parallel to measuring inputs (up to 660 V)

Display, indicators

LEDs for status and voltage levels
Fluke 1745: LC-display with backlight for voltage, current, active power, phase sequence.

Memory

Capacity 8 MB Flash-EPROM

Intervals

A function > 1,000 intervals for > 85 days with 10 min intervals
P function > 30,000 intervals for > 1 days with 10 min intervals

Events

> 13,000

Memory model

Linear or circular

Interface

USB and RS 3, 9600 to 115,000 Baud, automatic Baud rate selection, 3-wire

communication

Dimensions

Fluke 1745: 8 mm x 16 mm x 74 mm (115 in x 88 in x 33 in)
Fluke 1743/44: 170 mm x 15 mm x 55 mm (69 in x 51 in x in)

Weight

Fluke 1745: approx. 3 kg (6.5lb)
Fluke 1743/44: approx. kg (435 lb)

Measurement

A/D converter

16 bit, sample rate: 10.4 kHz

Anti-aliasing filter

FIR-Filter, f

C

= 4.9 kHz

Frequency response

Uncertainty < 1 % of Vm for 40 Hz to 500 Hz

Interval length

1, 3, 5, 10, 30 s, 1, 5, 10, 15, 60 minutes

Averaging time for Min/max values

½, 1 mains period, 00 ms, 1 , 3 , 5 s

Time base

Resolution: 10 ms (at 50 Hz), deviation: s/day at 3 °C ± °C (74 °F ± °F)