|
The Data Industrial Series 340N2 Btu transmitter is an economical, compact device for sub-metering applications using Johnson Controls Metasys® Network Companion™ and Facilitator™ Supervisory Systems. The 340N2 calculates thermal energy by measuring liquid flow in a closed pipe system and measuring temperature at inlet and outlet points. The 340N2 requires two 10 kW thermistors for temperature input. The flow input may be provided by any Data Industrial sensor and many other pulse or sine wave signal flow sensors. The onboard microcontroller and digital circuitry make precise measurements and produce accurate, drift-free outputs. The 340N2 is commissioned using Data Industrial Windowsâ based software. Calibration information for the flow sensor, units of measurement and output scaling may be preselected or entered in the field. While the unit is connected to a PC or laptop computer, real-time flow rate and total, temperatures and energy rate and total are available. The Series 340N2 transmitter features two LED’s to verify input and output signals. The primary output for the Series 340N2 is an isolated solid state switch closure that is user programmed for units of energy or flow. The output pulse width is adjustable from 50 mS to 5 sec. The secondary output is the Johnson Controls N2 communications protocol that allows the Series 340N2 to be assigned an address and allow all measurement parameters: inlet and outlet temperature, flow rate, flow total, energy rate and energy total to be transmitted from as many as 255 units on a single 3-wire bus. The Series 340N2 Btu transmitter operates on AC or DC power supplies ranging from 12 to 24 volts. The compact cast epoxy body measures 3.65"(93mm) x 2.95"(75mm) and can be easily mounted on panels, DIN rails or enclosures.
|
Series
340N2