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Type 340 N2 Metasys Btu Transmitter

Brand: Badger Meter

The Series 340N2 BTU transmitter is an economical, compact device for sub-metering applications using Johnson Controls Metasys Network Companion™ and Facilitator™ Supervisory Systems.

An economical, compact device for sub-metering applications using Johnson Controls Metasys® Network Companion and Facilitator Supervision System.

Calculates thermal energy in a closed pipe hydronic system by integrating the flow and temperature inputs.
Features
  • On-board microcontroller and digital circuitry make precise measurements and produce accurate, drift-free outputs
  • Accepts the signal from any Data Industrial raw pulse flow sensor, as well as many other pulse and sine wave devices
  • Calculates thermal energy by measuring liquid flow in a closed pipe hydronic system by integrating the flow and temperature inputs

Specifications

Brand

Flow Sensor Input - All Sensors

  • Separate Excitation Voltage is provided for Three-wire Sensors 7.9…11.4 Vdc with 270 Ω Source Impedance

N2 Output

  • RS-485 Output Compliant with EIA/TIA-485 Standards

Power - Current Draw

  • 60 mA at 12 VDC

Power Supply Options

  • 12 to 35 Vdc ± 5 % | 12 to 24 Vac ± 10 %

Pulse Output - Closed (On) State

  • Load Current, 700 mA max. over Operating Temperature Range
  • On-Resistance, 700 mΩ max. over Operating Temperature Range

Pulse Output - Open (Off) State

  • Leakage at 1580° F (70° C) < 1 μA at 60 V (DC or AC peak)

Pulse Output - Operating Voltage Range

  • 0…± 60 V (DC or AC peak)

Pulse Type Sensors - Frequency

  • 0.4…1.0 kHz

Pulse Type Sensors - Pull-up

  • Up to 9.1 VDC @ 2 kΩ

Pulse Type Sensors - Signal Limits

  • Vin < 35 V (DC or AC peak)

Pulse Type Sensors - Signal Amplitude

  • 2.5 VDC Threshold

Sine Wave Sensors - Frequency

  • 0.4…1.0 kHz

Sine Wave Sensors - Signal Amplitude

  • 10 mV p-p Threshold

Sine Wave Sensors - Signal Limits

  • Vin < 35 V (DC or AC peak)

Temperature Sensor Input

  • Two required: 10 kΩ Thermistor, 2-wire, Type II, 10 kΩ at 77° F (25° C)

Temperature

  • Operating: -20 to 158° F (-25 to 70° C)
  • Storage: -40 to 185° F (-40 to 85° C)

Weight

  • 4.8 oz with Headers Installed

Sensor Calibration

  • Data Industrial: Use K and Offset Values provided in Sensor Owners Manual
  • Other Sensors: Check with Factory

Units of Measure - Flow

  • Rate: gpm, gph, l/sec, l/min, l/hr, ft³/sec, ft³/min, ft³/hr, m³/sec, m³/min, m³/hr
  • Total: gallons, liters, cubic feet, cubic meters

Units of Measure - Energy

  • Rate: kBtu/min, kBtu/hr, kW, MW, hp, tons
  • Total: Btu, kBtu, MBtu, kWh, MWh, kJ, MJ

Temperature Units

  • Fahrenheit | Centigrade

Programming

  • Requires PC or Laptop running Windows 7, XP or Vista and A302-20 Programming Kit

Accessories

  • A302-20 Programming Kit

  • Building Design, HVAC & Plumbing
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