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Power quality logging is easy with a compact and rugged Fluke power meter
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 included PQ Log software quickly assesses the quality of power at the service entrance, substation, or at the load, according to the latest EN50160 standard.
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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- Plug and play: Setup in minutes with automatic current probe detection and powering
- Installs inside the cabinet: Compact, fully-insulated housing and accessories fit easily in tight spaces next to live power
- Determines the root cause: Included PQ Log software quickly analyzes trends, creates statistical summaries, and generates detailed graphs and tables
- Monitors power for the long-term: Data can be downloaded during recording without interruption
- Measure voltage with premium accuracy: IEC61000-4-30 Class-A compliant voltage accuracy (0.1%)
- Quickly validate quality of power: Assess power quality according to EN50160 power quality standard with statistical overview
- Rugged and reliable: Designed for everyday field use with no moving parts and durable insulated case with two year warranty
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Loggers for every application
The portable Fluke 1740 Series power quality loggers are designed for easy installation and use, anywhere in low- and medium-voltage applications. There are three models to choose from to meet your basic or advanced power logging needs.
Fluke 1743: IP65 water-proof monitor for logging the most common power parameters including V, A, W, VA, VAR, PF, energy, flicker, voltage events, and THD.
Fluke 1744: Includes the same features as the Fluke 1743. In addition to common power parameters, the Fluke 1744 also measures voltage and current harmonics, interharmonics, mains signaling, unbalance, and frequency.
Fluke 1745: Advanced IP50 power quality logger with the same measurement capability as the 1744, plus real-time LCD, five hour UPS.
| Product Feature |
Fluke 1745 |
Fluke 1744 |
Fluke 1743 |
| Measurement of common power parameters: V, A, W, VA, VAR, PF, energy, flicker, voltage events, and THD |
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| Measurement of voltage and current harmonics to the 50th, unbalance, and mains signaling |
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| Dust/water resistance |
IP50 |
IP65 water proof |
IP65 water proof |
| Display |
LED + LCD |
LED |
LED |
| UPS ride-through |
5 hrs |
3s |
3s |
| Dimensions (HxWxD) |
282 x 216 x 74 mm (11.5 x 8.8 x 3 in.) |
170 x 125 x 55 mm (6.9 x 5.1 x 2.2 in.) |
170 x 125 x 55 mm (6.9 x 5.1 x 2.2 in.) |
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| General Data |
| Intrinsic error |
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Refers to the reference conditions and is guaranteed for two years |
| | Warranty | | | Recalibration interval | | | Quality system |
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developed, designed, and manufactured according to DIN ISO 9001 |
| | Reference conditions |
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23 °C ± 2 K; 74 °F ± 2 K , Vm=230 V ± 10%,
50 Hz ± 0.1 Hz or 60 Hz ± 0.1 Hz
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| 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 |
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robust, fully insulated housing and accessories |
| | Protection type |
| Fluke 1745: |
IP50 as per EN 60529 |
| Fluke 1744/1743: |
IP65 as per EN 60529 |
| | Safety |
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IEC/EN 61010-1 600 V CAT III,
300 V CAT IV, pollution degree 2,
double insulation |
| | Type test voltage |
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5.2 kV rms, 50 Hz / 60 Hz, 5 s |
| | EMC |
| Emission: |
IEC/EN 61326-1, EN55022 |
| Immunity: |
IEC/EN 61326-1 |
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| 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:
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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
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| | Current input for clamp |
Input ranges II
L1 or A,
L2 or B, L3 or C, N:
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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 |
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Delta, 2-Element Delta, Wye, Single Phase, Split Single Phase |
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| 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
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| 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
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| 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 |
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LEDs for status and voltage levels
Fluke 1745: LC-display with backlight for voltage, current, active power, phase sequence.
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| | Memory |
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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
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| Events: |
> 13000 |
| Memory model: |
linear, circular |
| | Interface |
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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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| Model Name | Description | Price List | | Fluke 1743 |
Power Quality Logger Memobox
All models include:
- 4 Flexible probes 15/150/1500/3000 A with 2 m cable
- CD-ROM with PQ Log software
- RS232 interface cable and RS232-USB adapter
- Test leads for voltages and power supply
- 4 black dolphin clips
- Color localization kit
- Carrying bag
- Test certificate with measurement values
- Printed English manual
- Multi-language manual CD
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| On Request | | Fluke 1743 Basic |
Power Quality Logger Memobox
Excl. current clamps FS17xx
| On Request | | Fluke 1744 | Power Quality Logger Memobox
| On Request | | Fluke 1744 Basic |
Power Quality Logger Memobox
Excl. current clamps FS17xx
| On Request | | Fluke 1745 | Power Quality Logger Memobox
| On Request |
| Current clamps | Price List | | I1A/10A Clamp PQ3 | I1A/10A Clamp PQ3 3-Phase 1A/10A | On Request | | I1A/10A Clamp PQ4 | I1A/10A Clamp PQ4 | On Request | | I20A/200A Clamp PQ3 | I20A/200A PQ3 3-Phase Clamp | On Request | | I20A/200A Clamp PQ4 | I20A/200A PQ4 Clamp | On Request | | I5A/50A Clamp PQ3 | I5A/50A Clamp PQ3 3-Phase 5A/50A | On Request | | I5A/50A Clamp PQ4 | I5A/50A Clamp PQ4 | On Request |
| Rack Mounts Hardware | Price List | | 1743/44 Poleset | 1743/44 POLESET Mounting Kit for Fluke 1743/1744 | On Request |
| Test Leads | Price List | | VL1735/45 | VL1735/45 Banana 4-Phase voltage lead set for Fluke 1735/45 | On Request |
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