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Fluke 438-II Power Quality and Motor Analyser
  • Fluke 438-II Power Quality and Motor Analyser
  • Fluke 438-II Power Quality and Motor Analyser
  • Fluke 438-II Power Quality and Motor Analyser

Fluke 438-II Power Quality and Motor Analyser

Fluke authorised distributor and calibration house.

Includes: Fluke 438-II, test Lead set, 4 x i430 Thin Flexi Current Probes, Battery, Power Adapter, Soft Carry Case, CD Rom with PowerLog 430-II Software and User Documentation.

4778976
£6,328.00
Tax excluded
Quantity
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The Fluke 438-II Power Quality and Motor Analyser uses innovative algorithms to analyse not only three-phase power quality but also torque, efficiency, and speed to determine system performance and detect overloaded conditions, eliminating the need for motor load sensors.

The Fluke 438-II adds key mechanical measurement capabilities for electric motors to the advanced power quality analysis functions of the Fluke 430 Series II Power Quality Analyzers. Quickly and easily measure and analyse key electrical and mechanical performance parameters such as power, harmonics, unbalance, motor speed, torque and mechanical power without the need of mechanical sensors.

The ideal portable motor analysis test tool, the 438-II can help locate, predict, prevent, and troubleshoot power quality problems in three-phase and single-phase power distribution systems, while giving technicians the mechanical and electrical information they need to effectively evaluate motor performance.

FEATURES

Measure key parameters on direct-on-line motors including torque, RPM, mechanical power and motor efficiency.
Perform dynamic motor analysis by plotting of motor derating factor against load.
Calculate mechanical power and efficiency without the need of mechanical sensors.
Measure electrical power parameters such as voltage, current, power, apparent power, power factor, harmonic distortion and unbalance.
Identify power quality issues such as dips, swells, transients, harmonics and unbalance.
PowerWave data technology captures fast RMS data, and shows half-cycle averages and waveforms.
Waveform capture function captures 100/120 cycles (50/60 Hz) of each event detected event, in all modes, without set-up.
Automatic transient mode captures waveform data at 200 kS/s on all phases simultaneously up to 6 kV.
Fluke Connect® compatible* – view data locally on the instrument, via Fluke Connect mobile app and PowerLog 430-II desktop software.
Safety rated for industrial applications 600 V CAT IV/1000 V CAT III rated for use at the service entrance and downstream.

Fluke 438-II mechanical metering functions

Motor torque
Calculates the amount of rotational force (displayed in lb.ft or Nm) developed by a motor and transmitted to a driven mechanical load. The motor torque is the single most critical variable that characterizes the instantaneous mechanical performance of rotating equipment driven by electric motors.

Motor speed
Provides the instantaneous motor shaft rotational speed. Combined with the motor torque, motor speed provides a snapshot of the mechanical performance of rotating equipment driven by electric motors.

Motor mechanical load
Measures the actual mechanical power (displayed in hp or kW) produced by motors and provides a direct link to overloading conditions without simply basing it on the motor current.

Motor efficiency
Shows the effectiveness of each motor within a machine, assembly line, plant, and/or facility in converting electric power to useful mechanical work. By properly aggregating the efficiencies of a population of motors the total (aggregate) efficiency can be estimated. Comparisons to expected motor efficiencies at observed operating conditions can help quantify the cost associated with motor energy inefficiency.

Electrical motor analysis

The Fluke 438-II provides a complete breakdown of electrical parameters. Prior to beginning motor analysis, it's recommended to make base line power quality measurements to assess the state of harmonics and unbalance on the electrical service output as these two properties can have a serious negative impact, on motor performance.

When in Motor Analysis mode, results are summarized for electrical performance, mechanical performance and derating (according to NEMA recommendations).

The easy to understand four-level color severity scale indicates motor performance in relation to the recommended electrical parameter levels including rated power, power factor, unbalance and harmonics.

Fluke 434-II, 435-II and 437-II users can add these great motor analysis capabilities and features to their existing analysers today with a product upgrade option.

Fluke 438-II Product Video

Fluke VT04 Specifications
Drive Measurement Details
Motor Type 3 phase asynchronous (induction).
Power Source Variable Frequency Drive.
Motor Frequency Range 40Hz to 70Hz.
Over/Under Voltage from Nominal V/f Curve (%) -15% to +15%.
Carrier Frequency Range 2.5kHz–20kHz.
Variable speed drive technology that is covered by the 438-II
Inverter Type VSI only (voltage controlled) *
Control Method V/f control, open-loop vector, closed loop vector, drives with encoders.
Frequency 40 to 70 Hz.
* VSI drives are the most common drives. The alternative CSI drives are used in higher power applications.
Variable speed drive technology NOT covered by the 438-II
Inverter Type CSI (current source inverter).
Motors type Synchronous (DC, stepper, permanent magnet etc.).
Motor Frequency <40 and >70 Hz.
Mechanical specifications
Mechanical measurements can be performed on direct online motors with a 3 wire connection.
Motor measurement
Range Resolution Accuracy Default limit
Mechanical motor

Power
0.7 kW to 746 kW

1 hp to 1000 hp
0.1 kW

0.1 hp
±3% 1

±3% 1
100% = rated power

100% = rated power
Torque 0 Nm to 10 000 Nm

0 lb ft to 10 000 lb ft
0.1 Nm

0.1 lb ft
±5% 1

±5% 1
100% = rated torque

100% = rated torque
rpm 0 rpm to 3600 rpm 1 rpm ±3% 1 100% = rated rpm
Efficiency 0% to 100% 0.10% ±3% 1 NA
Unbalance (NEMA) 0% to 100% 0.10% ±0.15% 5%
Harmonics Voltage
Factor (NEMA)
0 to 0.20 0.1 ±1.5% 0.15
Unbalance Derating
Factor
0.7 to 1.0 0.1 indicative NA
Harmonics Derating
Factor
0.7 to 1.0 0.1 indicative NA
Total NEMA Derating
Factor
0.5 to 1.0 0.1 indicative NA
Notes: Supports motor design types NEMA A, B, C, D & E and IEC type H and N.
Rated torque is calculated from rated power and rated speed.
Update rate of Motor Measurements is 1x per second.
Default Trend duration is 1 week.
1Add 5% error when selecting Motor design type Other
Specification valid for Motor Power > 30% of rated power
Specification valid at stable operating temperature. Run the motor for at least 1 hour at full load
(2-3 hours if the motor is 50 HP or higher) to obtain stable temperature
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 1
Vpk 1 Vpk to 1400 Vpk 1 V 5% of nominal voltage.
Voltage Crest Factor (CF) 1.0 > 2.8 0.01 ±5%.
Vrms½ 0.1 V ±0.2% of nominal voltage.
Vfund 0.1 V ±0.1% of nominal voltage.
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 1 A ±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 1 A ±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 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.
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% 1
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° ±n x 1°.
Flicker
Plt, Pst, Pst (1 min) 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 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 32 GB 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.
Fluke 438-ll warranty Three years (parts and labor) on main instrument, one year on accessories.
1. ±5% if ≥ 1% of nominal voltage ±0.05% of nominal voltage if < 1% of nominal voltage
2. 50Hz/60Hz nominal frequency according to IEC 61000-4-30
3. 400Hz measurements are not supported for Flicker, Mains Signaling and Monitor Mode
4. For nominal voltage 50 V to 500 V.

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Fluke 438-ll Datasheet

PDF Specifications of the Fluke 438-ll Motor & Power Quality Analyser.

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Fluke 438-II Power Quality and Motor Analyser
COMPONENT PARTS DESCRIPTION PART No.
BP291 4800 mAh High Capacity Li-Ion Battery. 3894688
AC285 One pair (red, black) of large alligator clips with nickel-plated steel jaws. 1610159
i30s AC/DC Current Clamp (30 A). 2584935
i400s AC Current Clamp (400 A). 2277202
i5sPQ3 A pack of 3 pieces of the i5s current clamps, specially configured to provide low current accuracy while taking measurements on secondary current transformers. 2457508
HH290 Hanging Hook. 3894844
TLS430 Set includes five test leads and five alligator clips (4 black, 1 green). 2157713

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