Transmitters
340LW Series Lonworks Btu Transmitter
The Data Industrial Series 340LW Btu transmitter is an economical, compact device for sub-metering applications requiring addressable network output capabilities using the LONWORKS® protocol.
Series 340LW
Programmable Btu Transmitter
The Data Industrial Series 340LW Btu Transmitter is an economical, compact device for sub-metering applications that communicate via a LONWORKS® network.
The 340LW calculates thermal energy using the signal from a flow sensor installed in a closed pipe system, and the signals from two 10kW temperature thermistors installed in the systems inlet and outlet points. 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 340LW is commissioned using Data Industrial Windows® based software. Calibration information for the flow sensor, type and pipe size 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 340LW Transmitter features three LED’s to verify, sensor input "signal" and LONWORKS® "service" and "wink".
The Series 340LW communicates via a single two wire buss. Data such as flow rate, temperature of either thermistor, energy rate, flow total, temperature differential, or energy total is transmitted in SI units using Standard Network Variable Types (SNVT's).
The Series 340LW 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.
Literature
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Programming software
Programming software is available and will only work with the optional A301-20 programming cable.
DI Product Software: Ver 3.06 for Windows Xp/Vista (updated 4/4/2008)