The 3540 FC Three-Phase Power Monitor is a compact device to monitor key electrical parameters at three-phase machinery (or equipment) and stream data to the Fluke Connect® Cloud. The measurement data is available on any connected device using Fluke Connect mobile app or Fluke Connect® Condition Monitoring software.
Graphs are available to show the trends and fluctuations of the measurements during the monitoring period. Alarm settings notify users immediately when measurement values are outside specified
thresholds.
Monitoring the electrical parameters like current and distortion can reveal how the machinery (or equipment) is performing, for example:
A baseline current or load at a critical pump is trending dangerously close to the motor’s maximum current rating, taking service factor into account.
The total power at an induction furnace appears to be fluctuating abnormally during a curing cycle.
Determining how often a submersible or hydraulic pump is cycling on/off to maintain flow or pressures, in some cases simply validates their is power to the pump.
Measures single or three phase loads; voltage, current and frequency; power including active power, non-active power, and power factor; and total harmonic distortion
Remote access to measurements via the Fluke Connect Condition Monitoring software
Graphs show trends and fluctuations of the measurements during the monitoring period; and alarm settings notify users when measurement values are outside user-set thresholds
3540 FC Three-Phase Power Monitor is portable, wireless, battery powered, and easy to install
The Monitor includes a mode to log measurements when no connection to the Fluke Connect® Cloud is available. You can transfer Logged data with the Fluke Connect mobile app.
The total number of measurements depends on the selected topology (wiring configurations), like wye, delta, or split phase.
4.3-inch active matrix color TFT, 480 pixels x 272 pixels, resistive touch panel
Warranty
3540 FC and built-in power supply
2 years (battery not included)
Accessories
1 year
Calibration cycle
2 years
Dimensions (wxhxd)
3540 FC
19.8 cm x 16.7 cm x 5.5 cm (7.8 in x 6.6 in x 2.2 in)
Detachable power supply
13.0 cm x 13.0 cm x 4.5 cm (5.1 in x 5.1 in x 1.8 in)
3540 FC with power supply attached
19.8 cm x 16.7 cm x 9 cm (7.8 in x 6.6 in x 4.0 in)
Weight
3540 FC
1.1kg (2.5 lb)
Power Supply
Tamper protection
Kensington lock
Environmental specifications
Operating temperature
O °C to 45 °C (32 °F to 113 °F)
Storage temperature
<20 °C to +60 °C (-4 °C to +140 °F), with battery: -20 °C to +50 °C (-4 °F to +122 °F)
Operating humidity
<10 °C (<50 °F) non condensing
10 °C to 30 °C (50 °F to 86 °F) ≤95 %
30 °C to 40 °C (86 °F to 104 °F) ≤75 %
40 °C to 45 °C (104 °F to 113 °F) ≤45 %
Operating altitude
2000 m (6,500 ft) (up to 4,000 m derate to 1000 V CAT II/600 V CAT III/300 V CAT IV)
Storage altitude
12,000 m (39,000 ft)
IP rating
IEC 60529:IP50, in connected condition with protection caps in place
Vibration
MIL-T-28800E, Type 3, Class III, Style B
Safety
IEC 61010-1
IEC mains input
Overvoltage Category II, Pollution Degree 2
Voltage terminals
Overvoltage Category IV, Pollution Degree 2
Electromagnetic compatibility (EMC)
International
IEC 61326-1: Industrial
Korea (KCC)
Class A Equipment (Industrial Broadcasting & Communication Equipment)
USA (FCC)
47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.
Wireless radio with adapter
Frequency range
2412 MHz to 2462 MHz
Output power
<100 mW
Electrical specifications
Single and Three Phase Topologies
Wiring configurations
1-Φ, 1-Φ IT, Split phase, 3-Φ wye, 3-Φ wye IT, 3-Φ wye balanced, 3-Φ delta, 3-Φ Aron/Blondel (2-element delta), 3-Φ delta open leg, 3-Φ high leg delta, 3-Φ delta balanced. Currents only (load studies)
Voltage inputs
Number of inputs
4 (3 phases and neutral)
Maximum input voltage
1000 Vrms (1700 Vpk) phase to neutral
Input impedence
10 MΩ each phase to neutral
Bandwidth
42.5 Hz to 3.5 kHz
Scaling
1:1, variable
Current inputs
Number of inputs
3, mode selected automatically for attached sensor
Current sensor output voltage
Clamp
500 mVrms / 50 mVrms; CF 2.8
Rogowski coil
150 mVrms/15 mVrms at 50 Hz, 180 mVrms/18 mVrms at 60 Hz; CF 4; all at nominal probe range
Bandwidth (-3 dB)
42.5 Hz to 3.5 kHz
Scaling
1:1 and variable
Data acquisition
Resolution
16-bit synchronous sampling
Sampling frequency
10.24 kHz at 50/60Hz, synchronized to mains frequency
Input signal frequency
Mains 50/60 Hz (42.5 to 69 Hz)
Data storage
Internal flash memory (not user replaceable)
Memory size
Typical 1 offline logging session of 1 week with 1 second intervals. The number of possible logging sessions and logging period depends on user requirements.
Measured parameters
Voltage, current, frequency, THD V, THD A, power, power factor, fundamental power, DPF
Averaging interval
1 s
Total harmonic distortion
THD for voltage and current is calculated on 25 harmonics
Calculated min/max values times
Voltage
Full cycle RMS (20 ms at 50 Hz, 16.7 ms at 60 HZ)
Current
Half cycle RMS (10 ms at 50 Hz, 8.3 ms at 60 Hz)
Power
200 ms
Interfaces
USB-A
Firmware updates, max. supply current: 120 mA
WiFi
Supported modes
Direct connection and connection to infrastructure
Security
WPA2-AES with pre-shared key
Power supply
Voltage range
nominal 100 V to 500 V (85 V min to 550 V max) using safety plug input
Mains power
nominal 100 V to 240 V (85 V min to 265 V max) using IEC 60320 C7 input
Power consumption
Maximum 50 VA (max. 15 VA when powered using IEC 60320 input)
Standby power
<0.3 W only when powered using IEC 60320 input
Efficiency
≥ 68.2 % (in accordance with energy efficiency regulations)
CAN - en 
US 
