- 400 Hz Measurement: By increasing the power frequency to 400 Hz, transformers and motors can be much smaller and lighter than at 50 or 60 Hz, which is an advantage in aircrafts, submarines, space crafts, and other military equipment and hand-held tools. The 437 II model captures power quality measurements for these types of avionic and military systems.
- Power Inverter Efficiency: Simultaneously measure AC output power and DC input power for power electronics systems using optional DC clamp.
- PowerWave Data Capture: Capture fast RMS data, show half-cycle and waveforms to characterize electrical system dynamics (generator start-ups, UPS switching etc.).
- Energy Loss Calculator: Classic active and reactive power measurements, unbalance and harmonic power, are quantified to pinpoint the fiscal costs of energy losses.
- Troubleshoot Real-Time: Analyze the trends using the cursors and zoom tools.
- Highest Safety Rating in the Undustry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance.
- Measure all Three Phases and Neutral: With included four flexible current probes with enhanced thin flex design to fit into the tightest places.
- Automatic Trending: Every measurement is always automatically recorded, without any set-up.
- System-Monitor: Ten power quality parameters on one screen according to EN50160 power quality standard.
- Logger Function: Configure for any test condition with memory for up to 600 parameters at user defined intervals.
- View Graphs and Generate Reports: With included analysis software.
- Battery Life: Seven hours operating time per charge on Li-ion battery pack.
SPECIFICATION
| Product Specifications | ||||
| Volt | Model | Measurement Range | Resolution | Accuracy |
| Vrms (ac+dc) | 1 V to 1000 V phase to neutral | 0.01 V | ± 0.1% of nominal voltage**** | |
| Vpk | 1 Vpk to 1400 Vpk | 1 V | 5% of nominal voltage | |
| Voltage Crest Factor (CF) | 1.0 > 2.8 | 0.01 | ± 5 % | |
| Vfund | 0.1 V | ± 0.1% of nominal voltage | ||
| Amps (accuracy excluding clamp accuracy) | ||||
| Amps (ac+dc) | i430-Flex 1x | 5 A to 6000 A | 1 A | ± 0.5% ± 5 counts |
| i430-Flex 10x | 0.5 A to 600 A | 0.1 A | ± 0.5% ± 5 counts | |
| 1mV/A 1x | 5 A to 2000 A | 1A | ± 0.5% ± 5 counts | |
| 1mV/A 10x | 0.5 A A to 200 A (ac only) | 0.1 A | ± 0.5% ± 5 counts | |
| Apk | i430-Flex | 8400 Apk | 1 Arms | ± 5 % |
| 1mV/A | 5500 Apk | 1 Arms | ± 5 % | |
| A Crest Factor (CF) | 1 to 10 | 0.01 | ± 5 % | |
| Amps½ | i430-Flex 1x | 5 A to 6000 A | 1 A | ± 1% ± 10 counts |
| i430-Flex 10x | 0.5 A to 600 A | 0.1 A | ± 1% ± 10 counts | |
| 1mV/A 1x | 5 A to 2000 A | 1A | ± 1% ± 10 counts | |
| 1mV/A 10x | 0.5 A A to 200 A (ac only) | 0.1 A | ± 1% ± 10 counts | |
| Afund | i430-Flex 1x | 5 A to 6000 A | 1 A | ± 0.5% ± 5 counts |
| i430-Flex 10x | 0.5 A to 600 A | 0.1 A | ± 0.5% ± 5 counts | |
| 1mV/A 1x | 5 A to 2000 A | 1A | ± 0.5% ± 5 counts | |
| 1mV/A 10x | 0.5 A A to 200 A (ac only) | 0.1 A | ± 0.5% ± 5 counts | |
| Hz | ||||
| Fluke 437 @ 50 Hz nominal | 42.500 Hz to 57.500 Hz | 0.001 Hz | ± 0.01 Hz | |
| Fluke 437 @ 60 Hz nominal | 51.000 Hz to 69.000 Hz | 0.001 Hz | ± 0.01 Hz | |
| Fluke 437 @ 400 Hz nominal | 340.0 Hz to 460.0 Hz | 0.1 Hz | ± 0.1 Hz | |
| Power | ||||
| Watts (VA, var) | i430-Flex | max 6000 MW | 0.1 W to 1 MW | ± 1% ± 10 counts |
| 1 mV/A | max 2000 MW | 0.1 W to 1 MW | ± 1% ± 10 counts | |
| Power Factor (Cos j/DPF) | 0 to 1 | 0.001 | ± 0.1% @ nominal load conditions | |
| Energy | ||||
| kWh (kVAh, kvarh) | i430-Flex 10x | Depends on clamp scaling and V nominal | ± 1% ± 10 counts | |
| Energy Loss | i430-Flex 10x | Depends on clamp scaling and V nominal | ± 1% ± 10 counts Excluding line resistance accuracy | |
| Harmonics | ||||
| Harmonic Order (n) | DC, 1 to 50 Grouping: Harmonic groups according to IEC 61000-4-7 | |||
| Inter-Harmonic Order (n) | OFF, 1 to 50 Grouping: Harmonic and Interharmonic subgroups according to IEC 61000-4-7 | |||
| Volts % | f | 0.0 % to 100 % | 0.1 % | ± 0.1% ± n x 0.1 % |
| r | 0.0 % to 100 % | 0.1 % | ± 0.1% ± n x 0.4 % | |
| Absolute | 0.0 to 1000 V | 0.1 V | ± 5% * | |
| THD | 0.0 % to 100 % | 0.1 % | ± 2.5 % | |
| Amps % | f | 0.0 % to 100 % | 0.1 % | ± 0.1% ± n x 0.1% |
| r | 0.0 % to 100 % | 0.1 % | ± 0.1% ± n x 0.4 % | |
| Absolute | 0.0 to 600 A | 0.1 A | ± 5% ± 5 counts | |
| THD | 0.0 % to 100 % | 0.1 % | ± 2.5 % | |
| Watts % | f or r | 0.0 % to 100 % | 0.1 % | ± n x 2% |
| Absolute | Depends on clamp scaling and V nominal | — | ± 5% ± n x 2 % ± 10 counts | |
| THD | 0.0 % to 100 % | 0.1 % | ± 5 % | |
| Phase Angle | -360° to +0° | 1° | ± n x 1° | |
| Flicker | ||||
| Plt, Pst, Pst (1min) Pinst | 0.00 to 20.00 | 0.01 | ± 5 % | |
| Unbalance | ||||
| Volts % | 0.0 % to 20.0 % | 0.1 % | ± 0.1 % | |
| Amps % | 0.0 % to 20.0 % | 0.1% | ± 1 % | |
| Mains Signaling | ||||
| Threshold Levels | Threshold, limits and signaling duration is programable for two signaling frequencies | — | — | |
| Signaling Frequency | 60 Hz to 3000 Hz | 0.1 Hz | ||
| Relative V% | 0 % to 100 % | 0.10 % | ± 0.4 % | |
| Absolute V3s (3 second avg.) | 0.0 V to 1000 V | 0.1 V | ± 5 % of nominal voltage | |
| General Specifications | ||||
| Case | Design Rugged, shock proof with integrated protective holster Drip and dust proof IP51 according to IEC60529 when used in tilt stand position Shock and vibration Shock 30 g, vibration: 3 g sinusoid, random 0.03 g 2 /Hz according to MIL-PRF-28800F Class 2 | |||
| Display | Brightness: 200 cd/m 2 typ. using power adapter, 90 cd/m 2 typical using battery power Size: 127 mm x 88 mm (153 mm/6.0 in diagonal) LCD Resolution: 320 x 240 pixels Contrast and brightness: user-adjustable, temperature compensated | |||
| Memory | 8GB SD card (SDHC compliant, FAT32 formatted) standard, upto 32GB optionally Screen save and multiple data memories for storing data including recordings (dependent on memory size) | |||
| Real-Time Clock | Time and date stamp for Trend mode, Transient display, System Monitor and event capture | |||
| Environmental | ||||
| Operating Temperature | 0 °C ~ +40 °C; +40 °C ~ +50 °C excl. battery | |||
| Storage Temperature | -20 °C ~ +60 °C | |||
| Humidity | +10 °C ~ +30 °C: 95% RH non-condensing +30 °C ~ +40 °C: 75% RH non-condensing +40 °C ~ +50 °C: 45% RH non-condensing |
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| Maximum Operating Altitude | Up to 2,000 m (6666 ft) for CAT IV 600 V, CAT III 1000 V Up to 3,000 m (10,000 ft) for CAT III 600 V, CAT II 1000 V Maximum storage altitude 12 km (40,000 ft) |
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| Electro-Magnetic-Compatibility (EMC) | EN 61326 (2005-12) for emission and immunity | |||
| Interfaces | Mini-USB-B, Isolated USB port for PC connectivity SD card slot accessible behind instrument battery | |||
| Warranty | Three years (parts and labor) on main instrument, one year on accessories | |||
| View full family specifications » | ||||
| * | ± 5 % if ≥ 1 % of nominal voltage ± 0.05 % of nominal voltage if < 1% of nominal voltage | |||
| ** | 50Hz/60Hz nominal frequency according to IEC 61000-4-30 | |||
| *** | 400Hz measurements are not supported for Flicker, Mains Signaling and Monitor Mode | |||
| **** | For nominal voltage 50 V to 500 V | |||