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The Fluke 437-II/BASIC Series II 400Hz Power Quality and Energy Analyzer is designed specifically for the defense and avionics industries. Capable of measuring up to 400 Hz, the 437 II is a must-have for those working in submarines, aircrafts, and other transport applications.
PowerWave data capture
For some users, loads switching is a cause of power quality problems. When loads switch on, the current draw sometimes causes the voltage to drop to a level that causes other equipment to malfunction. The PowerWave function available in the 435 and 437 Series II models enables users to capture voltage, current and frequency signals simultaneously at a high speed to see which interaction is potentially causing problems. PowerWave goes beyond standard power quality measurements; PowerWave’s fast data capture mode enables system dynamics to be characterized.
Waveforms for voltage and current are continuously captured for the specified time, and are displayed on screen in high detail; the power waveform is derived from the data. In addition, half-cycle RMS values for voltage, current, power and frequency can be stored and retrieved for analysis. This feature is particularly useful for testing of standby generation systems and UPS systems where reliable switch-on can be vital.
These UPM calculations are used to quantify the fiscal cost of energy loss caused by power quality issues. The calculations are computed, along with other facility-specific information, by an Energy Loss Calculator that ultimately determines how much money a facility loses due to wasted energy.
Power inverter efficiency
Power inverters take DC current and transform it into AC current, or vice versa. Solar generation systems usually include an inverter that takes the DC energy from the solar cells and converts it to useful AC power. Inverters can lose performance over time and need to be checked. By comparing the input power with the output power you can determine the system efficiency. The 430 series II can measure the efficiency of such inverters by simultaneously measuring the DC and AC power of a system to determine how much power is lost in the conversion process.
Unified Power Measurement Previously, only experts could calculate how much energy was wasted due to power quality issues; utilities could calculate the cost, but the required measurement process was beyond the reach of average electricians. With the new, patented Unified Power function of the 430 Series II, you can use one handheld tool to determine how much power is being wasted, and calculate exactly what the extra consumption costs. Fluke’s patented Unified Power Measurement System provides the most comprehensive view of power available, measuring:
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AutoTrend - Quickly see the trend Unique AutoTrend gives you fast insight into changes over time. Every displayed reading is automatically and continuously recorded without having to set up threshold levels or having to manually start the process. You can quickly view trends in voltage, current, frequency, power, harmonics or flicker on all three phases plus neutral. | |
SystemMonitor - Check performance against EN50160 with ease With a single push of a button, the unique System-Monitor gives you an overview of power system performance, and checks the compliance of incoming power to EN50160 limits or to your own custom specifications. The overview is shown on a single screen, with color-coded bars clearly indicating which parameters fall outside the limits. | |
The System-Monitor overview screen gives instant insight into whether the voltage, harmonics, flicker, frequency and the number of dips and swells fall outside the set limits. A detailed list is given of all events falling outside the set limits. |
Logging function allows you to customize measurement selections and provides instantaneous analysis of user-selectable parameters. | Measure and record power (W), VA and VARs, PF and energy consumption. | Track harmonics up to the 50th, and measure and record THD in accordance with IEC61000-4-7 requirements |
Product specifications | ||||
Model | Measurement range | Resolution | Accuracy | |
Volt | ||||
Vrms (ac+dc) | 434-II | 1 V to 1000 V phase to neutral | 0.1 V | ± 0.5% of nominal voltage**** |
435-II and 437-II | 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 % | |
Vrms½ | 434-II | 1 V to 1000 V phase to neutral | 0.1 V | ± 1% of nominal voltage |
434-II and 435-II | 0.1 V | ± 0.2% of nominal voltage | ||
Vfund | 434-II | 1 V to 1000 V phase to neutral | 0.1 V | ± 0.5% of nominal voltage |
435-II and 437-II | 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 | ||||
Hz | Fluke 434 @ 50 Hz nominal | 42.50 Hz to 57.50 Hz | 0.01 Hz | ± 0.01 Hz |
Fluke 434 @ 60 Hz nominal | 51.00 Hz to 69.00 Hz | 0.01 Hz | ± 0.01 Hz | |
Fluke 435/7 @ 50 Hz nominal | 42.500 Hz to 57.500 Hz | 0.001 Hz | ± 0.01 Hz | |
Fluke 435/7 @ 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 |
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) |
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 |
Included accessories | |
Power options | BC430 Power Adapter International plug adapter set BP290 (Single capacity Li-ion battery) 28Wh (7 hours or more) |
Leads | TL430 Test lead and Alligator clip set |
Color coding | WC100 color coding clips and regional decals |
Flexible current probes | i430flex-TF, 24 inch (61cm) length, 4 clamps |
Memory, Software and PC connection | 8 GB SD card PowerLog on CD (includes operator manuals in PDF format) USB cable A-Bmini |
Carrying case | C1740 Soft Case for 434-II and 435-II C437 Hard Case with rollers for 437-II |