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The Multi-Trans Smart Ecosystem (MTSE) has been engineered to provide a cost effective solution for accurate (±0.50%F.S.) airflow measurement of up to three systems; perfect for air handling or rooftop units requiring supply fan array, return fan array, and outside air intake monitoring. 

The MTSE can receive pressure signals from each fan’s existing piezometer ring airflow measurement sensors provided by the fan manufacturer or from field installed airflow sensors. 

The MTSE can simultaneously measure up to four differential pressure points such as pressure drop across filters to aid in HVAC filter replacement, duct static pressure, and plenum pressure.

The summed (total) airflow rate of the individual arrays and the outside air intake ventilation rate is indicated on a 3.5-inch, Human-Machine-Interface (HMI) touch screen; individual airflow rate of each fan in an array is also accessible via touchscreen menus. 

The total airflow rate of each array is available to the Building Management System (BMS) via dedicated field selectable 0 to 10 VDC or 4 to 20 mA analog outputs and via field selectable BACnet®-MS/TP Master or Modbus® RTU Slave network communications.

The MTSE can accept a temperature input signal for each system (up to 3 total) for air temperature indication and air density compensation for standard or actual airflow calculations.
Features
  • Local display of each fan’s airflow rate as well as the total airflow rate for each array 
  • Measurement of min and max OA flow rate for economizing 
  • Field Selectable Modbus RTU Slave & BACnet®-MS/TP Master Communication, Standard 
  • Standard impact resistant, flame retardant Polycarbonate NEMA 4X and IP66 rated enclosure
  • ±0.50% F.S. Accuracy 
  • Super-K Factor to eliminate need for individual manufacturer’s fan coefficients or area factors 
  • Calibrated using NIST Traceable Reference Standards 
  • Easy and intuitive 3.5-inch touchscreen display 
  • Software updates via MicroSD 
  • True AutoZero (optional) 
  • User defined high and low airflow alarm visual and BMS/BAS indication

Specifications

Accuracy

  • ± 0.50 % of Full Scale

Flow Summation

  • Up to (3) Unique Systems (i.e. SA/RA/OA)

Flow Sensing Points

  • Up to (10) Unique Transducers

Pressure Sensing Points

  • Up to 4 Transducers (i.e. Filter Loading)

Power Supply

  • 20-28 Vac/dc

Enclosure

  • NEMA 4X (Standard)

Display

  • 3-1/2” Capacitive Color Touchscreen

Communication

  • BACnet MS/TP or Modbus RTU (Field Selectable)

Zeroing

  • Menu Based (Standard)
  • Auto-Zero (Optional)

Temperature Limits

  • Operating: -4° F to 158° F (-20° C to 70° C)
  • Storage Temperature -40° F to 257° F (-40° C to 125° C)

Analog Outputs

  • (3) 12-bit Analog Outputs
  • Field Selectable 0-10 V and 4-20 mA
  • Overvoltage and Overcurrent Protected

Analog Inputs

  • (3) 12-bit Analog Inputs
  • Field Selectable 0-5 V, 0-10 V and 4-20 mA

Digital Outputs

  • (2) Open Collector Digital Outputs

Digital Inputs

  • (2) Dry Contact Digital Inputs

Power Consumption

  • 8.5 Watts, 15.3 VA Max.

Documentation

Product Specifications

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