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Type 340 N2 Metasys Btu Transmitter
Brand: Badger MeterThe 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...158 °F (-25...70 °C)
- Storage: –40…185 °F (-40...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