The Data Industrial 340 BN/MB Btu Energy Transmitter from Badger Meter is an economical, compact device for hydronic
sub-metering applications. It uses an RS-485 connection for Modbus® and BACnet communication protocols and a solid state
switch for pulse output representing either flow or energy.
The 340 BN/MB Btu Energy Transmitter calculates thermal energy by integrating the liquid flow in a closed pipe system and
the differential temperature between the supply and return. The 340 BN/MB Btu Energy Transmitter requires one flow sensor
and two temperature sensors.
The temperature sensors can be two-wire 10k Ω Type II Thermistors or 100 or 1000 Ω RTDs that follow the IEC 751 curve.
The flow input may be provided by many of the Data Industrial line of flow sensors and other manufacturers' devices that
generate pulse or sine waves.
The onboard microprocessor and digital circuitry make precise measurements and produce accurate drift-free output. The
340 BN/MB Btu Energy Transmitter is programmed using the Badger Meter Windows® software and a Data Industrial Series
A301 programming cable. Calibration information for the flow sensor, units of measurement, communication protocol
settings and output scaling may be downloaded prior to installation or in the field.
The RS-485 Modbus settings include Baud Rate, Address and RTU/ASCII.
The RS-485 BACnet is an MS/TP slave device and includes Address, Baud Rate, Device Name, Device Instance Number and Max
Master Valve.
While the unit is connected to a PC or laptop computer, real-time flow rate, flow total, both temperature readings, energy rate
and energy total are available.
The 340 BN/MB Btu Energy Transmitter features three LEDs to indicate flow sensor activity, RS-485 activity and pulse output.
The 340 BN/MB Btu Energy Transmitter has an isolated solid state switch closure that is user programmed for units of energy
or flow. The output pulse width is adjustable from 10 ms to 5 sec.
The 340 BN/MB Btu Energy Transmitter operates on AC or DC power supplies ranging from 12 to 24 volts.
The compact cast epoxy body measures 3.65 x 2.95 inches (93 x 75 mm) and can be easily mounted on panels, DIN rails or
enclosures.
INSTALLATION
Mechanical Installation
The 340 BN/MB Btu Energy 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 340 BN/MB Btu Energy Transmitter 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.
In any mounting arrangement, the primary concerns are ease of wiring and attachment of the programming cable.
The unit generates very little heat so no consideration needs to be given to cooling or ventilation.
Page 5 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
Surface Mount Installation
The 340 BN/MB Btu Energy Transmitter may be mounted to the surface of any panel using double-sided adhesive tape or by
attaching fasteners through the holes in the mounting flanges of the unit.
1.60”
(40.6mm)
3.65”
(92.7mm)
Output
2.95”
(74.9mm)
AC L /DC
AC C /DC
Power Out
Signal +
Signal
Shield
1
Temp 2
2
3
3
Temp 1
2
1
+
-
Sensor Input
-
Input LED
Pulse Out -
Data
Industrial
Model: 340 BN/MB
S/N 340-
005100
Pulse Out +
Output LED
D.I.C.
Comm
Port
+
Power In
Btu ENERGY METER
Comm LED
Factory Port
NTPDPU
REF
_
.88”
(22mm)
.60”
(15mm)
.20”
(5mm)
Figure 1: 340 BN/MB Dimensions
Wall Mounting
Optional metal and plastic enclosures are available to mount the 340 BN/MB Btu Energy Transmitter to a wall when no other
enclosure is used. The enclosure is first attached to the wall using fasteners through its mounting holes.
After wiring, the transmitter may be attached to the enclosure with the terminal headers facing in using the slots in the
mounting flanges. As an alternate mounting arrangement, the 340 BN/MB Btu Energy Transmitter may be fastened to the box
cover using double-sided adhesive tape.
5.125"
Top
4.50"
4.50"
Top
4.60"
3.25"4.60"
Side
Side
2.00"
Bottom
2.25"
Figure 2: 340 BN/MB Metal (left) and Plastic (right) Box Dimensions
Page 6 July 2012
Installation & Operation Manual
DIN Rail Mounting
Optional clips snap onto the mounting flanges allowing the 340 BN/MB Btu Energy Transmitter to be attached to DIN 15, 32,
35 mm DIN rail systems.
Figure 3: DIN Rail Mounting
Temperature Sensor Installation
Badger Meter offers several styles of 10k Ω Thermistors and 100 Ω Platinum RTDs in both direct immersion and Thermowells.
The style selected depends on system requirements and pipe size.
Direct Insert
Generally, direct insert sensors are used for smaller pipe sizes.
Figure 4: Direct Insert
Thermowell
Thermowells are recommended for larger pipes that are more difficult to drain for service.
Figure 5: Thermowell
Page 7 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
Hot Tap
For pipes that cannot be drained even for initial installation, we offer a Hot Tap version.
Model THT – available in the 10k Ω Thermistor version only.
Figure 6: Hot Tap
Electrical Installation
All connections to the 340 BN/MB Btu Energy Transmitter are made to screw terminals on removable headers.
Wire
3/32" Flathead
Screwdriver
Series 300
Connector
Figure 7: Side View - Typical Series 300 Removable Connector Wiring
Page 8 July 2012
Installation & Operation Manual
Power Supply Wiring
The 340 BN/MB Btu Energy Transmitter requires 12-24 Volts AC or DC to operate. The power connections are made to the
ORANGE header. The connections are labeled beside the header. Observe the polarity shown on the label.
If a Badger Meter plug-in type power supply (Series A-1026 or A-503) is used, connect the black/white striped wire to the
terminal marked positive (+) and the black wire to the terminal marked negative (–).
DC -
or
AC Common
AC or DC
Power Supply
DC +
or
AC Load
AC L /DC
AC C /DC
Input LED
Power Out
Signal +
Signal
-
Shield
1
Temp 2
2
3
3
Temp 1
2
1
+
-
Sensor Input
Power In
Output LED
Model: 340
S/N 340-
Data
Industrial
Comm LED
Earth
Ground
Output
XXXXXX
Pulse Out -
Pulse Out +
Comm
Port
D.I.C.
REF
_
+
Figure 8: Sample Power Supply Wiring
NOT:NIncluded with every 340 BN/MB Btu Energy Transmitter is a 340IK kit containing a screw, lock washer and nut to
connect the transmitter to earth ground. Connect the earth ground lug of the 340 BN/MB Btu Energy Transmitter to
a solid earth ground with as short a wire as possible. This will help prevent electrical interference from affecting the
transmitter’s normal operation.
Page 9 July 2012
REF
_
Factory Port
NTPDPU
mm
+
-
Power In
AC C /DC
AC L /DC
Output
Pulse Out +
Pulse Out -
Data Industrial® 340 BN/MB BTU Energy Transmitter
Sensor Wiring
All flow sensor types connect to the four terminal headers labeled “Sensor Input.”
Sensor Input
Power Out
Black
or Signal -
Red
or Signal +
Series 200
or SDI Sensor
Shield
(if applicable)
Signal +
Signal
Shield
1
Temp 2
2
3
3
Temp 1
2
1
-
Input LED
Figure 9: Sample Sensor Wiring Diagram
Series 200
Connect the red wire to sensor signal (+), black wire to sensor signal (–) and the bare wire to shield.
SDI Series
Model: 340
S/N 340-
Comm LED
XXXXXX
Co
D.I.C.
Port
+
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.
Other Flow Sensors
The sensor input power out terminal supplies nominal 12V DC excitation voltage for three-wire sensors. Connect sensor signal
(+) and sensor signal (–) wires to transmitter terminals.
The 340 BN/MB Btu Energy Transmitter is very versatile and can accept both pulse and zero crossing sine wave flow sensors.
Excitation voltage is also provided for three-wire powered sensors (Example: hall effect, of Badger Meter Series 4000).
See the Programming section page 14 for configuration instructions.
Page 10 July 2012
Installation & Operation Manual
Temperature Element Wiring
Appropriate wire types and proper shielding is required for accurate temperature readings.
Since Btu calculations are based on Delta T cable, in order to maintain a balanced system, T1 and T2 wire runs should be kept
to approximately the same length, not to exceed 500 feet.
Thermistors
Badger Meter thermistors are not polarity-sensitive, therefore, wire color is unimportant. The thermistor located in the same
pipe as the flow sensor, termed temperature sensor T1, should be connected to terminals 2 and 3 on terminal block
Temp 1. The thermistor located in the other pipe, termed temperature sensor T2, should be connected to terminals 2 and 3 on
terminal block Temp 2. As shown in the thermistor wiring diagram (Figure 10), a jumper must be installed between terminals
1 and 3 for both the T1 and T2 input terminals. These terminals 1 and 3 are used for lead resistance compensation when 100
three-wire RTDs are used and must be jumpered when not used.
1
Temp 2
2
3
3
Jumpers
Temp 1
2
Return
Supply
1
T2
10KΩ
T1
Thermistors
Figure 10: Thermistor Wiring Diagram
Resistance Temperature Detectors (RTDs)
Badger Meter RTDs are three-wire devices. Two of the wires are the same color and interchangeable. One wire is
current-carrying and connects to terminal #3, and the other is used for lead compensation and is connected to terminal #1.
The single color lead is attached to terminal 2. The RTD located in the same pipe as the flow sensor, temperature sensor T1,
should be connected to terminal block Temp 1. The RTD located in the other pipe line, temperature sensor T2, should be
connected to terminal block Temp 2.
1
Temp 2
2
3
3
Temp 1
2
1
Return
Supply
T2
100Ω RTDs or 1000Ω RTDs
T1
Figure 11: RTD Wiring Diagram
Pulse Output Wiring
The 340 BN/MB Btu Energy Transmitter has solid-state switch output rated for a maximum sinking current of 100 mA at 36V
DC. In most cases the pulse out (+) terminal of the 340 BN/MB Btu Energy Transmitter will connect to the input pulse (+) and
the pulse out (–) terminal to the input pulse (–) of the receiving device. Although labeled +/–, the pulse output is not actually
polarity sensitive and can switch low level AC loads if required.
These terminals are located on a separate two-terminal removable header on the 340 BN/MB Btu Energy Transmitter, labeled
“Output.”
Page 11 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
NOTE:
maximum sinking current
is 100 mA @ 36 VDC
Output
Pulse Out -
Pulse Input
Device
(-)(+)
Pulse Out +
AC L /DC
+
Power In
Output LED
AC C /DC
-
Figure 12: Sample Pulse Output Wiring Diagram
Connecting the RS-485 Buss
As shown in the Sample Pulse Output Wiring Diagram, the position of jumpers on each 340 BN/MB Btu Energy Transmitter
and wiring between each transmitter and the RS-485 network are different depending on where the transmitter is installed,
that is, its nodal position. For all but the final transmitter in a string, the three jumpers NT, PU and PD should be in the open
position, and only the (+) and (–) network terminals should be connected to the RS-485 buss. For the final 340 BN/MB Btu
Energy Transmitter in a Modbus network, the three jumpers NT, PU and PD should be in the closed position, and all three
network terminals, (+), (–) and REF, should be connected to the Modbus buss.
NOT:NThe 340 BN/MB Btu Energy Transmitter default Modbus or BACnet polling address must be changed before it is
introduced into an existing network to avoid possible address conflicts. Please refer to programming instructions in
the previous section.
Figure 13: Sample Wiring Diagram to Modbus Network
NOTE 1: Biasing, circuitry and resistors for PU, PD and NT terminals are integral parts of the 340 BN/MB Btu Energy
Transmitter.
NOTE 2: For the final 340 BN/MB Btu Energy Transmitter in a given RS-485 network string, NT, PU and PD jumpers should be
in the closed position. Otherwise, NT, PU and PD should be in the open position.
NOTE 3: For the final 340 BN/MB Btu Energy Transmitter in an RS-485 string, all three network terminals, (+), (-) and REF,
should be connected to the buss. Otherwise, connect only terminals (+) and (-) to the buss.
Page 12 July 2012
Installation & Operation Manual
Connection to the RS-485 network should not be made until the 340 BN/MB Btu Energy Transmitter has been configured per
the instructions in "Programming" on page 14.
See RS-485 Network Configuration on page 19.
Communications Cable Wiring
Field configuration requires a Data Industrial programming kit (consisting of a custom cable and software) and a PC running
Windows 9x, ME, NT, 2000 or Windows 7. In order to connect, the 340 BN/MB Btu Energy Transmitter must be powered, and
the Data Industrial Series A301 cable must be connected to the 340 BN/MB Btu Energy Transmitter COM port connector and
an available 9-pin COM port on a computer. USB to COM Port adapters can be used if the DB9 COM port is not available.
NOT:NThe Data Industrial A301 Cable will work with all Series 300 products. However the older version of the cable (A300)
does not have sufficient bandwidth to work with the 340 BN/MB Btu Energy Transmitters.
Badger Meter provides free programming software updates via the Internet for all Series 300 products. Go to
www.badgermeter.com. Software updates can be found in the Industrial/Impeller/Transmitter section.
Output
Pulse Out -
AC L /DC
AC C /DC
Power Out
Signal +
Signal
-
Shield
Input LED
1
Temp 2
2
3
3
Temp 1
2
1
Power In
+
-
Btu ENERGY METER
Sensor Input
Model: 340 BN/MB
S/N 340-
Comm LED
Pulse Out +
Output LED
Data
Industrial
005100
D.I.C.
Comm
Port
+
Factory Port
DIC COM Port
D.I.C. Comm Port
NTPDPU
REF
_
Figure 14: Location of the DIC COM Port
Page 13 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
PROGRAMMING
Connecting Via DIC COM Port
Programming the 340 BN/MB Btu Energy Transmitter is accomplished by installing 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. Power the 340 BN/MB Btu Energy Transmitter with 12-24V AC/DC.
3. Connect the computer to the transmitter with the Data Industrial Series A-301 communications cable to the socket
labeled “D.I.C. COM port”, taking care to properly align the tab on the plug and socket to maintain polarity. Connect
the DB9 connector of the Data Industrial Series A301 communications cable to a PC COM port that has the 340
software installed. If a DB9 COM port is not available, a USB to COM Port Adapter may be purchased locally.
4. Open the program and from the Device tab and select 340 as shown in the dialog box below.
Figure 15: Select 340
5. After the 340 device has been selected, select the Type, 340BN/MB.
Figure 16: Device Type
Page 14 July 2012
Installation & Operation Manual
6. Once 340BN/MB has been selected, the appropriate COM port can be selected from the Conguration tab.
Figure 17: Select Set COM Port
Figure 18: Select the COM Port
7. If the COM and Device type have been properly selected, the “---” will be replaced with values.
NOT:NIf this does not occur, communication has not been established and you cannot continue to the next step. If it does
not connect automatically try clicking on Poll Now.
Page 15 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
NOT:NIf communication still does not occur and you are using a DB9 to COM 1 or COM2, try using a USB to COM adapter.
This will usually create a new COM port that was not previously listed. Windows Device Manager can be helpful in
determining the actual COM ports that are available.
Figure 19: Device Manager
Select this new port created by the adapter and the screen should change as shown (Figure 20). Notice that the “---“
are replaced with values. This confirms normal communications.
Figure 20: Screen Change
Page 16 July 2012
Installation & Operation Manual
8. When communication has been conrmed, click on the Parameters button. The Parameters screen is displayed.
Figure 21: Parameters Screen
9. From this screen set up the following:
1. Flow Sensor Type, Scaling and Units
2. Temperature Sensor Type, Units, Mode and Zeroing
3. Energy Calculation Units of Measure
4. Filter Coefficients (Flow and Energy averaging for reading stability)
5. Scaled Pulse Output Resolution and Pulse Width
6. RS-485 Network Configuration (BACnet or Modbus)
10. Be sure to press Send before leaving this page to save any wanted changes.
Refresh rereads the unit and refreshes the screen. Defaults will restore all factory settings. Exit returns to the Main
Screen.
Figure 22: Parameter Screen Buttons
Page 17 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
Flow Sensor Section
Figure 23: Pulse or Sine
For most Data Industrial sensors, the sensor type is “Pulse”, and the “K” and “Offset” values can be found in the respective Flow
Sensor Manual.
“Sine” is used for zero-crossing flow sensors (some turbine meters, etc.)
Several flow rate and flow total units of measure can be selected from the pull-down menu.
Temperature Sensor Section
Figure 24: Sensor Attributes
First choose the Sensor Type (10K Ω Thermistor, 100 Ω RTD, or 1K RTD).
The Calc(ulation) Mode has three selections. Initially, it is best to choose “Absolute.” In this mode the Energy Rate and Total will
be calculated as a positive value regardless of the direction of energy flow.
In the T1>T2 Mode, energy will only be calculated if the T1 sensor is warmer than the T2 sensor. If T1 is cooler than T2, the
energy rate will remain at 0.0 and the energy total will not increase.
In the T1<T2 Mode, energy will only be calculated if the T1 sensor is cooler than the T2 sensor.
The T1= and T2= are simply for reference to indicate the current temperature readings.
This is useful in using the zeroing feature explained on page 19.
Page 18 July 2012
Installation & Operation Manual
The Zero Temp Diff is a very powerful feature in this product which allows any inaccuracies of drift in the temperature
sensors, or the 340 BN/MB Btu Energy Transmitter temperature measurements, to be cancelled out.
This correction can be either manually typed in or if the temperature sensors are known to be at exactly the same
temperature, the Zero Temp Diff button can be used to automatically zero the difference between the two readings. To
correct for any erroneous entries, simply manually type 0.0 in both fields.
This feature must be used with caution. If used incorrectly, the temperature readings will be incorrect and the energy rates
and totals will also be in error.
Energy Calculation
Figure 25: Rate and Total Units
Select the units of measure for energy rate and total from the pull-down menus.
Filter Coecients
Figure 26: Filter Coefficients
For most applications leave the default setting of 5. If the flow rate or energy rates are unstable for some reason (from a
disturbed flow profile, for example) this value can be increased as needed.
Pulse Output
Figure 27: Flow or Energy
The pulse output can represent either flow or energy. Units will be the same as selected in the previous sections.
Pulse width and pulse resolution will be selected based on the requirements of the receiving device and system requirements.
Page 19 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
RS-485 Network Congurations
The RS-485 Section can be configured in three ways:
•Pulse Out Only – RS-485-OFF
•Modbus
•BACnet
The following sections explain each in detail.
RS-485 Network Configuration – Pulse Out Only
Figure 28: Pulse Out Only Option
If the Modbus or BACnet communications are not going to be used, the Pulse Out Only setting can be selected. This will
disable the RS-485 Network.
RS-485 Network Configuration – Modbus
Figure 29: Modbus Option
Select Modbus, to access the Modbus pull down menus.
Select the Address, Bit Rate (Baud Rate) and Mode (RTU or ASCII).
The 340 BN/MB Btu Energy Transmitter uses IEEE 754 Float - Data Located in “Holding Registers.”
The 340BN/MB Data Format is “Float 32” where the Data is stored across two “Holding Registers”.
In the case of Temperature 1, the Upper Byte is stored in Register 40002, and the Lower Byte is stored in Register 40001,
sometimes referred to as an ABCD to CDAB format. This is done to permit backwards compatibility with older 16-bit systems.
For example, a temperature of 53.36° F when converted to IEEE 754 is “425570A4.” So in the case of the 340BN/MB,
Register # 40001 = 70A4 Hex and Register # 40002 = 4255 Hex. See the table on the next page for additional information.
Page 20 July 2012
Modbus Register Map
Installation & Operation Manual
Model 340BN/MB Register Map
Register NameAddressData TypeRead/Write
Temperature 1 40001 + 40002IEEE 754 FloatRead Only
Temperature 240003 + 40004IEEE 754 FloatRead Only
Flow Input (Hz)40005 + 40006IEEE 754 FloatRead Only
Total Flow40007 + 40008IEEE 754 FloatRead Only
Total Energy40009 + 40010IEEE 754 FloatRead Only
Flow Rate40011 + 40012IEEE 754 FloatRead Only
Energy Rate40013 + 40014IEEE 754 FloatRead Only
K Factor40015 + 40016IEEE 754 FloatRead Only
Offset40017 + 40018IEEE 754 FloatRead Only
Temp Calc Mode40019 + 40020IEEE 754 FloatRead Only
Flow Filter Coef40021 + 40022IEEE 754 FloatRead Only
Temp Filter Coef40023 + 40024IEEE 754 FloatRead Only
Specific Heat40025 + 40026IEEE 754 FloatRead Only
Fluid Density40027 + 40028IEEE 754 FloatRead Only
T1 A Coefficient40029 + 40030IEEE 754 FloatRead Only
T1 B Coefficient40031 + 40032IEEE 754 FloatRead Only
T1 C Coefficient40033 + 40034IEEE 754 FloatRead Only
Temp 1 Offset40035 + 40036IEEE 754 FloatRead Only
T1 A Coefficient40037 + 40038IEEE 754 FloatRead Only
T1 B Coefficient40039+ 40040IEEE 754 FloatRead Only
T1 C Coefficient40041 + 40042IEEE 754 FloatRead Only
Temp 1 Offset40043 + 40044IEEE 754 FloatRead Only
Page 21 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
RS-485 Network Configuration – BACnet
Figure 30: BACnet Option
Select BACnet to access the BACnet pull down menus.
Select the Bit Rate (BAUD rate) to match other devices on the network.
BACnet Device Name can be set to help identify this device and location.
BACnet Device ID (Incidence #) is a unique number that identifies this device on the network. Typically, the first part of the number is the same as the network #, and the last two characters are the same as the Address.
NOT:NThis is not a requirement, but can help in system planning.
BACnet Object Map
DescriptionIDName
Analog InputAN1TempInFALSEº C, º F
Analog InputAN2TempOutFALSEº C, º F
Analog InputAN3FreqInFALSEHz
Analog InputAN4VolFlowFALSE
Analog InputAN5EnrgyFlowFALSE
Analog ValueAV1TotalVolFALSEgallons, liters, ft3, m
ProductModel NumberProtocol RevisionSoftware VersionFirmware Version
340 BN/MBB340BN135-2001Rev 1.00
Vendor Information
Badger Meter, Inc
6116 E 15th Street
Tulsa, OK 74112
www.badgermeter.com
Product Description
The 340 BN/MB Btu Energy Transmitter is a low cost, ow and temperature sensor interface used in submetering applications. An
additional communication design feature provides connectivity for BACnet® MS/TP.
The Configuration Software has an RS-485 test program.
Although it uses Modbus settings, it is testing RS-485 communication.
The test requires connection to a COM port using the Data Industrial A302-20 RS 485 to RS-232 convertor cable. This cable can
also be helpful with other diagnostics programs and devices that use an RS-232 port to communicate.
When testing the RS-485 network, it is sometimes helpful to connect to some other location instead of directly to the 340
BN/MB Btu Energy Transmitter. When testing in this way the RS-485 end connector can be removed, and the wires can be
connected directly to the RS-485 pairs.
The following table may be helpful to make connections.
302 Cable w/RS-485 End340 BN/MB340 N2Series 3000
RedRS-485 +N2 +RS-485B
WhiteRS-485 –N2 –RS-485A
BlackREFREFRS-485 Gnd
When the RS-485 Test button is selected the following screens appear:
Figure 32: Test Screens
Page 24 July 2012
Installation & Operation Manual
Factory Default Settings
The table below is a list of factory default setting for all 340BN/MB variables. These settings can be changed by accessing the
parameters to best fit your application, and if desired, recorded in the table for future reference.
DescriptionDefault ValueCustomer Value
Flow Sensor TypePulse
"K" Offset1
"Offset" Value0
Flow Rategpm
Flow Totalgallons
Temperatureº F
Energy Calculationabsolute
Temperature Sensor Typethermistor
Energy RatekBtu/hr
Energy TotalBtu
Flow Filter Coefficient5
Energy Filter Coefficient1
Energy Filter Coefficient1
MS/TP Address1
MS/TP Baud Rate9600
BACnet Device #—
BACnet Max Master127
Page 25 July 2012
Data Industrial® 340 BN/MB BTU Energy Transmitter
SPECIFICATIONS
POWER
Power supply options:
12…35V DC
12…24V AC
Current draw:
115 mA max. @ 12V DC
FLOW SENSOR INPUT
Pulse type sensors
Signal amplitude:
2.5V DC threshold
Signal limits:
Vin < 12V (DC or AC peak)
Frequency:
4…10000 Hz
Pull-up:
2k to 15V DC
Sine wave sensors
Signal amplitude:
30 mV p-p threshold
Signal limits:
Vin < 12V (DC or AC peak)
Frequency:
4…10000 Hz
Excitation voltage 3-wire sensors
7.0V DC to 11.4 V DC 500 source impedance
TEMPERATURE SENSOR INPUT
2 required:
10k Ω thermistor, 2 wire, type II,10k Ω, @ 25°C
100 Ω RTD, Platinum three wire,
1000 Ω RTD, Platinum, two or three wire
RTDs follow IEC 751 DIN Curve
PULSE OUTPUT
Pulse width:
Programmable 10 ms to 5 sec. in 50 ms steps
Pulse frequency:
Max of 10 Hz at 50 ms pulse width programmable to scaling
requirements of connected device (Flow or Energy)
Opto-isolated solid state switch
Operating voltage range:
0 to ± 45V (DC or AC peak)
Closed (on) state:
Load Current - 700 mA max.
over operating temperature range
Open (off) state - leakage @ 70ºC
<1µA @ 45V (DC or AC peak)
OPERATING TEMPERATURE
0…70° C
32…158° F
Storage Temperature
– 40…85° C
– 40…185° F
WEIGHT
4.8 oz with connector headers installed
SENSOR CALIBRATION
Badger Meter –
Use K and Offset provided in sensor owner’s manual
Requires PC or laptop running Windows® XP, Vista or
Windows 7
Data Industrial 340 BN/MB Programming Kit A301-20
containing software and programming cable