Fluke 1744 Three Phase Power Quality Logger Memobox

Description

The Fluke 1740 Series three-phase power quality loggers are everyday power meters for technicians who troubleshoot and analyze power quality issues. Capable of simultaneously logging up to 500 power parameters for up to 85 days and monitoring for events, these power loggers help uncover intermittent and hard-to-find power quality issues.

The Fluke 1744 includes the same features as the Fluke 1743 but can measure voltage and current harmonics, interharmonics, mains signaling, unbalance and frequency.
The Fluke 1744 is a powerful three-phase power quality logger capable of logging the most common power parameters you'll need for power quality monitoring such as V, A, W, VA, VAR, Power Factor, Energy, Flicker, Voltage and THD.

 

Features

  • Class A Compliance
  • Class A Compliant
  • Datalogging
  • Display leds
  • Display led indicators
  • Included CT Rating 15a/150a /3000a
  • Included CT Type flexible
  • Included CTs 4x 3000a flexible cts
  • Line Power
  • Min/Max/Avg
  • Number Included CTs 4
  • Report Generator
  • Root Cause Analysis
  • Single Phase
  • Software
  • Statistical Analysis
  • Three Phase
  • Transient Event Capture
  • Transient Events
  • True RMS
  • User Defined Logging

Fluke 1744 Applications

  • Disturbance analysis – Uncover root cause of equipment malfunction for later mitigation and predictive maintenance
  • Quality of service compliance – Validate incoming power quality at the service entrance
  • Power quality studies – Assess baseline power quality to validate compatibility with critical systems before installation
  • Load studies – Verify electrical system capacity before adding loads
  • Energy and power quality assessment – Validate performance of facility improvements by quantifying energy consumption, power factor, and general power quality before and after improvements
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Specifications

General Data

Intrinsic error

 

 Refers to the reference conditions and is guaranteed for two years

Warranty

 

 2 years

Recalibration interval

 

 2 years recommended

Quality system

 

 developed, designed, and manufactured according to DIN ISO 9001

Reference conditions

 

 23 °C ± 2 K; 74 °F ± 2 K , Vm=230 V ± 10%, 50 Hz ± 0.1 Hz or 60 Hz ± 0.1 Hz

Phase sequence:

 L1, L2, L3

Interval length:

 10 minutes

Wye connection:

 (L1, L2, L3 to N)

Power supply:

 88 V … 265 V AC

Environment conditions

Working temp. range:

 -10 °C to 55°C; 14 °F to 131°F

Operating temp. range:

 0 °C to 35°C; 32 °F to 95°F

Storage temp. range:

 -20 °C to 60°C; -4 °F to 140°F

Reference temp. range:

 23 °C ± 2 K; 74 °F ± 2 K

Relative humidity:

 Fluke 1745: Class B2 acc. IEC 60654-1
Fluke 1744/43: Class C2 acc. IEC 60654-1

Housing

 

 robust, fully insulated housing and accessories

Protection type

Fluke 1745:

 IP50 as per EN 60529

Fluke 1744/1743:

 IP65 as per EN 60529

Safety

 

 IEC/EN 61010-1 600 V CAT III, 300 V CAT IV, pollution degree 2, double insulation

Type test voltage

 

 5.2 kV rms, 50 Hz / 60 Hz, 5 s

EMC

Emission:

 IEC/EN 61326-1, EN55022

Immunity:

 IEC/EN 61326-1

 

Voltage and Current Measurement

Input voltage

Input range VI P-N:

 max 480 V AC

Input range VI P-P:

 max 830 V AC

Max. overload voltage:

 1.2 VI

Input range selection:

 By job programming

Connections:

 P-P or P-N, 1- or 3-phase

Nominal voltage VN:

 <= 999 kV with PTs and ratio

Input resistance:

 App. 820 kΩ per chan. Lx-N Single phase (L1 or A, L2 or B, L3 or C connected): app. 300 kΩ

Intrinsic uncenrtainty:

 0.1 % of VI

Voltage transformer:

 Ratio: <999 kV / VI

Ration selection:

 By job programming

Current input with Flexi Set

Input ranges II L1 or A, L2 or B, L3 or C, N:

 15 A / 150 A / 1500 A / 3000 A ac

Measuring range:

 0.75 A … 3000 A ac

Intrinsic uncertainty:

 < 2 % of II

Position influence:

 Max. ± 2 % of measured value – for distance conductor to meas. head > 30 mm

Stray field influence:

 < ± 2 A ac for Iext=500 A ac and distance to measuring head > 200 mm

Temperature coefficient:

 < 0.05 % / K

Current transformer:

 Ratio <= 999 kA / II

Ratio selection:

 By job programming

Connection:

 3-phase, 3-phase +N, 2 phase L1 or A and L3 or C (2 W-meter-method) 7 pole connector

Current input for clamp

Input ranges II L1 or A,
L2 or B, L3 or C, N:

 0.5 V nominal (for II) 1.4 Vpeak

Intrinsic uncertainty:

 < 0.3 % of II

Max. overload:

 10 V ac

Input resistance:

 App. 8.2 kΩ

Current transformer:

 Ratio Ω 999 kA / II

Power systems

 

 Delta, 2-Element Delta, Wye, Single Phase, Split Single Phase

 

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 > 12000 intervals for > 85 days with 10 min intervals
P function > 30000 intervals for > 212 days with 10 min intervals

Events:

 > 13000

Memory model:

 linear, circular

Interface

 

 RS 232, 9600…115 000 Baud, automatic Baud rate selection, 3-wire communication

Dimensions

Fluke 1745:

 282 mm x 216 mm x 74 mm (115in x 88in x 33in)

Fluke 1743/1744:

 170 mm x 125 mm x 55 mm (69in x 51in x 22in)

Weight

Fluke 1745:

 approx. 3 kg

Fluke 1744/1743:

 approx. 2 kg

Measurement

A/D converter:

 16 bit, sample rate: 10.24 kHz

Anti-aliasing filter:

 FIR-Filter, fc =4.9 kHz

Frequency response:

 Uncertainty < 1 % of Vm for 40 Hz to 2500 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, 200 ms,1 , 3 , 5 s

Time base:

 Resolution: 10 ms (at 50 Hz), deviation: 2s/day at 23 °C; 74 °F ± 2 K

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