Measurement and Verification (power monitoring) System - 3 Phase - KIT-MV-3P

The HOBO Measurement & Verification System is a self-contained kit making it convenient and economical for energy performance contractors, energy consultants, and building energy managers to track the performance of building systems, such as packaged HVAC units, and verify the impact of energy efficiency improvements.

The Measurement & Verification System contains a 4-channel logger, kWh transducers, 50 and 200 Amp current transducers, voltage input leads, software, and accessories for single (KIT-MV-1P) or three phase (KIT-MV-3P) circuit energy monitoring applications, all contained in a rugged carrying case.

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This HOBO Measurement & Verification System can be used to measure AC voltages from (nominal) 120 to 140 phase to neutral and (nominal) 208 to 240 phase to phase. Electrical service types applicable are:

• 120 VAC/208-240 VAC Three-Phase Four-Wire Wye with Neutral
• 208-240 VAC Three-Phase Three-Wire Delta without Neutral

The system can also be used for the following Single-Phase service types by installing a jumper.

• 120 VAC Single-Phase Two-Wire with Neutral
• 120 VAC/240 VAC Single-Phase Three-Wire with Neutral
• 120-240 VAC Single-Phase Two-Wire without Neutral

The Measurement & Verification System contains the following items which are pre-assembled to save time:

• H21-002 - HOBO® Micro Station Data Logger
• S-UCC-M001 - Electronic Switch Pulse Input Adapter - 1 meter
• T-MAG-SCT-050 X3- Three 0 - 50 AMP Split-core AC Current Transformer -0.75” Opening
• T-MAG-SCT-200 X3- Three 0 - 200 AMP Split-core AC Current Transformer - 1.25” Opening
• T-WNB-3D-240 - WattNode 208/240 VAC 3-phase Delta kWh Transducer
• WNB-LEAD-set
• 85-CASE –MV (customized carrying case - not sold separately)
• ADAPT-SER-USB (USB cables - A Keyspan USB-to-serial adaptor for use with all RS-232 serial devices and a PC 3.5 Interface Cable for PC computers - Keyspan CD)
• 85-Screwdriver-1 (Onset screwdriver - not sold separately)
• 05-6POS-BLOCK-D (extra WattNode CT terminal block for other CTs that maybe purchased - not sold separately)
• HOBOware Pro software disc
• Manual

For a list of additional compatible sensors for the Measurement & Verification System, click here.

Note: The included H21-002 data logger is capable of accepting other 3rd party sensors - for a complete list of H21-002 compatible sensors, please see the H21-002 product page.

The KIT-MV-3P Kit is for use in Indoor environments

The KIT-MV-3P Kit supports the following measurements : Kilowatt Hours (kWh), Kilowatts (kW)

H21-002 - HOBO Micro Station Data Logger

• Operating Range: -20° to 50°C (-4° to 122°F) with alkaline batteries, -40° to 70°C (-40° to 158°F) with lithium batteries
• Sensor Inputs: Up to four smart sensors (including multiple-parameter sensors)
• Communication: 3.5 mm serial port
• Dimensions: 8.9 cm H x 11.4 cm D x 5.4 cm W (3.5 x 4.5 x 2.125 inches)
• Weight: 0.36 kg (0.8 lb)
• Memory: 512K nonvolatile flash data storage
• Memory Modes: Stop when full, wrap around when full
• Operational Indicators: Seven lights provide logging and sensor network status
• Logging Interval: 1 second to 18 hours, user-specified interval
• Battery Life: 1 year typical use (up to 4 sensors with 1 minute or longer logging
  interval)
• Battery Type: Four standard AA alkaline batteries included (for operating conditions -20° to 50°C [-4° to 122°F]); optional AA lithium batteries available for operating conditions of -40° to 70°C (-40° to 158°F)
• Time Accuracy: 0 to 2 seconds for the first data point and ±5 seconds per week at
  25°C (77°F)
• Data Type: Supports measurement averaging based on availability of
  supporting data from sensor
• Logger Start Modes: Immediate, push-button, or delayed start options
• Data Communication: Current reading while logging, offload while logging, or offload
  when stopped
• Environmental Rating: Weatherproof, with Gore^TM Vent for deployment in harsh weather conditions
• Mounting: Mount vertically on flat surface 18 cm (3.5 inches) or wider; optional mast mounting kit for use on 4.1 cm (1 5/8 inches) diameter masts
• Enclosure Access: Cover secured by four screws
• Sensor Network Cable Length: 100 m (328 ft) maximum

S-UCC-M001 - Electronic Switch Pulse Input Adapter - 1 meter

• Maximum Input Frequency: 120 Hz (120 pulses per second)
• Measurement Range: 0 – 65,533 pulses per logging interval
• Resolution: 1 pulse
• Lockout time: 45 µs ± 10%
• Recommended Input Type: Electronic solid state switch closure or CMOS-level digital output (example: FET, opto-FET or open collector)
• Preferred Switch State: Active low input Normally open
• Edge Detection: Falling edge, Schmitt Trigger buffer (logic levels: low ≤ 0.6 V, high ≥ 2.7 V)
• Minimum Pulse Width: 1 ms
• Input/Output Impedance: 100 KΩ
• Open Circuit Input Voltage: 3.3 V
• Maximum Input Voltage: 3.6 V
• User Connection: 24 AWG wires, 2 leads: white(+), black(-)
• Operating Temperature Range: -40° to 75°C (-40° to 167°F)
• Overall Cable Length: 1 m (3.3 ft.)
• Housing: Weatherproof PVC housing protects input adapter electronics
• Housing Dimensions: 14 x 0.95 cm (5.5 x 0.375 in.)
• Weight: 310 g (11 oz.)
• Bits per Sample 16
• Number of Data Channels: 1
• Measurement Averaging Option: No (reports the number of pulses over the logging interval)

T-MAG-SCT-050 - 0 - 50 AMP Split-core AC Current Transformer -0.75” Opening

• Measurement ranges: 0-50 Amps AC
• Accuracy: ±1% (from 10% to 130% of rated current)
• Voltage rating: 600VAC
• Phase angle: <2 degrees (valid for 70A or higher)
• Output signal to FlexSmart TRMS Module: 0.333V at rated current
• Number of data channels: 1
• Quality construction:
• UL recognized
• 0.75” Opening
• Epoxy encapsulated housing
• Leads – 8-ft twisted pair, 22 AWGG
• Snap closing/opening
• Internal precision burden resistor

T-MAG-SCT-200 - 0 - 200 AMP Split-core AC Current Transformer - 1.25” Opening

• Measurement ranges: 0-200 Amps AC
• Accuracy: ±1% (from 10% to 130% of rated current)
• Voltage rating: 600VAC
• Phase angle: <2 degrees (valid for 70A or higher)
• Output signal to FlexSmart TRMS Module: 0.333V at rated current
• Number of data channels: 1
• Quality construction:
• UL recognized
• 1.25” Opening
• Epoxy encapsulated housing
• Leads – 8-ft twisted pair, 22 AWGG
• Snap closing/opening
• Internal precision burden resistor

T-WNB-3D-240 - WattNode 208/240 VAC 3-phase Delta kWh Transducer

• Delta or Wye Configuration ranges: 208, 480 Volts AC
  • 1 Phase 2 Wire 208V (No neutral)
  • 1 Phase 2 Wire 240V (No neutral)
  • 1 Phase 3 Wire 120V/240V
  • 3 Phase 3 Wire 208V (No neutral)
  • 3 Phase 4 Wire 120V/208V
• Rating: FCC Class A
• Operating: voltage range: ±20% of nominal
• Frequency: 60 Hz
• CT input: 0-0.5 VAC operating, 3 VAC maximum
• Accuracy: ±0.45% of reading + 0.05% FS through 25th harmonic (dependent on CT used and line variation accuracy could be 1.5% to 4% of reading)
• Enclosure: high impact, UL rated ABS plastic
• Connectors: UL, CSA recognized, detachable screw terminals (14 AWG), 600V
• Operating temp range: -30 to 60°C (-22 to 140°F)
• Operating humidity range: 0 to 90% RH, non-condensing
• Dimensions: 8.5 cm x 14.3 cm x 3.8 cm (3.3 in. x 5.6 in. x 1.5 in.)
• Weight: 295 g (10.4 oz.)
• Number of data channels: 2