Badger® Series 340LW BadgerMeter, Inc. Btu Transmitter With LONWORKS® Installation & Operation Manual 872038 Rev.
The Badger Meter Series 340LW Btu Transmitter is an economical, compact device for submetering applications that use the LONWORKS® protocol in an addressable network. The Series 340LW calculates thermal energy using the signal from a flow sensor installed in a closed pipe system, and the signals from two 10kΩ temperature thermistors installed in the systems inlet and outlet points. The flow input may be provided by any Badger Meter sensor and many other pulse or sine wave signal flow sensors.
INSTALLATION Mechanical installation The Badger® Series 340LW transmitter may be surface mounted onto a panel, attached to DIN rails using adapter clips or wall mounted using two optional enclosures. Location Although the Series 340LW device is encapsulated, all wiring connections are made to exposed terminals. The unit should be protected from weather and moisture in accordance with electrical codes and standard trade practices.
the box cover using double-sided adhesive tape. Temperature Sensor Installation The location of the temperature sensors with regard to the flow sensor is important for the accuracy of the energy calculation. Temperature sensor T1 must be located closest to the flow sensor. A distance of 5 pipe diameters will give the greatest accuracy. Always install the temperature sensor downstream of the flow sensor.
Sensor Wiring All flow sensor types connect to the four terminal header labeled “sensor input”. Series 200 Connect the red wire to sensor signal (+), black wire to sensor signal (-) and the bare wire to shield. SDI Series Connect the plus (+) terminal of the sensor to sensor signal (+) on the transmitter and the minus (-) terminal of the sensor to sensor signal (-) on the transmitter. Connect the shield terminal of the sensor to the shield terminal of the transmitter.
Programming in Comm Mode Programming the Badger® Series 340LW is accomplished by installing the Badger Meter programming software on a computer and entering data on templates of the Windows® based program. 1. Load the interface software into the computer. 2. Connect the computer to the Series 340 transmitter with the Badger Meter Model A-301 communications cable to the socket labeled COMM PORT, taking care to properly align the tab on the plug and socket to maintain polarity.
8. Program using diagram below as a reference.
Commisioning: Before the Badger® Series 340LW can be used on the LonWorks network, a network tool must commission it. The 340 LW has a red “Wink” LED and a green “Service” LED. The green “Service” LED has is used to report the commission status. If commissioned, on power-up the green LED turn ON for a few seconds, and then turn off. If not commissioned the green LED will flash at about a ½ Hz rate. If the LED turns ON, then OFF, and then ON steady, contact the factory. Special notes for operation 1.
Node Object #0 (Object Type #0) Mandatory NVs nv1 nvi00Request SNVT_obj_request nv2 nvo00Status SNVT_obj_request nvi00Request types: RQ_NORMAL: for measurement Objects #1-3, updates SNVTs with latest value read from Series 340 RQ_OVERRIDE: for Objects #1 or #2, resets all totals, should be used with authentication to prevent tampering.
Energy Object #2 (Object Type #1) Mandatory NVs nv1 nvo04EnergyRate SNVT_power_f nv2 nvo05EnergyTot_f SNVT_btu_f nv3 nvo06EnergyTot_k SNVT_btu_kilo nv4 nvo07EnergyTot_M SNVT_btu_mega Optional Configuration Properties nc22 nciEnRtMaxSendT SNVT_elapsed_tm nc22 nciEnTotFMaxSendT SNVT_elapsed_tm nc22 nc22 nciEnTotKMaxSendT SNVT_elapsed_tm nciEnTotMMaxSendT SNVT_elapsed_tm Temperature Object #3 (Object Type #1) Mandatory NVs nv1 nvo08Temp1 SNVT_temp_f nv2 nv1 nvo09Temp2 SNVT_temp_f nv3 nvo10D
Communications Status Object #4 (Object Type #1) Mandatory NVs nv1 nvo11CommStatus SNVT_count output SNVT types: flow rate -> SNVT_flow_f -1E38 .. 1E38 I/sec flow total -> SNVT_vol_f 0 .. 1E38 liter SNVT_vol_kilo 0 .. 6,553.5 kiloliters (0.1 lk) energy rate -> SNVT_power_f -1E38 .. 1E38 watts energy total -> Energy, thermal -> SNVT_btu_f 0 .. 1E38 btu SNVT)btu_kilo 0 .. 65,535 kilo btu SNVT_btu_mega 0 .. 65,535 mega btu temps (temp1, temp2, delta T)-> SNVT_temp_f -273.17 ..
SPECIFICATIONS Power Power supply options: 12-35 VDC +/- 5% 12-24 VAC +/- 10% Current Draw: 60 mA @ 12 VDC Storage Temperature -40° C to +85° C -40° F to +185° F Flow Sensor Input All sensors: Excitation voltage 3 wire sensors: 7.9 – 11.4 VDC 270Ω source impedance Pulse type sensors: Signal amplitude: 2.
FACTORY DEFAULTS Serial Number Version Temperature Units Sensor Type K= Offset= Flow Rate Units Flow Total Units Energy Rate Units Energy Total Units Energy Calculation Flow Filter Energy Filter Scaled Pulse Output Units Scaled Pulse Output Units Per Pulse Scaled Pulse Output Pulse Width Default Values n/a n/a °F Pulse 1 0 gpm gallons kBtu/hr Btu absolute 0 0 energy 1 100 Customer Values 13
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Badger® and Data Industrial® are registered trademarks of Badger Meter, Inc. Windows® is a registered trademark of the Microsoft Corporation. LonWorks® is a registered trademark of Echelon Corporation. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specifications without notice, except to the extent an outstanding contractual obligation exists. Please see our website at www.badgermeter.com for specific contacts.
