Badger Meter 340 Specifications
Transmitters
Series 340 BN/MB Btu Energy Transmitter
DESCRIPTION
The 340 BN/MB Btu Energy Transmitter from Badger Meter® is an
economical, compact device for sub-metering applications using
the BACnet or Modbus® communications protocol.
The 340 BN/MB Btu Energy Transmitter calculates thermal
energy using the signal from a flow sensor installed in a hydronic
heating or chilled water system, and the signals from two 10 kΩ
temperature thermistors, 100 Ω RTDs or 1000 Ω RTDs installed
in the system’s 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 on-board microcontroller and circuitry make precise
measurements and produce accurate, drift-free outputs. The
340 BN/MB Btu Energy Transmitter is programmed using
Badger Meter Windows®-based software. Calibration information
for the flow sensor type and pipe size may be preselected or
entered by the user in the field. While the unit is connected to a PC
or laptop computer, real-time flow rate, flow total, temperatures,
energy rate and energy total are available.
340 BN/MB Ordering Matrix
EXAMPLE: 340 BN/MB — xx
SERIES
Btu Energy Transmitter w/
340 BN/MB
output
OPTIONS
Transmitter Only 00
With Metal Enclosure 02
With Plastic Enclosure 03
With DIN Rail Mounting Clips 04
The 340 BN/MB Btu Energy Transmitter features three indicator
LEDs to verify the sensor input signal, network link and
pulse output.
The 340 BN/MB Btu Energy Transmitter communicates via RS485.
The compact cast body measures 3.65 × 2.95 inches (93 × 75 mm)
and can be easily mounted on panels, DIN rails or enclosures.
1.60 in.
(40.6 mm)
2.95 in.
(74.9 mm)
3.65 in.
(92.7 mm)
Output
Pulse Out -
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
Power In
Btu ENERGY METER
Model: 340 BN/MB
S/N 340-
Comm LED
Pulse Out +
Output LED
Data
Industrial
005100
D.I.C.
Comm
Port
+
Figure 1: Overall dimensions
0.88 in.
(22 mm)
Factory Port
0.60 in.
(15 mm)
NT PDPU
REF
_
0.20 in.
(5 mm)
XMT-DS-01661-EN-05 (March 2018)
Product Data Sheet
Transmitters, Series 340 BN/MB Btu Energy Transmitter
Side
5.125 in.
(130 mm)
3.25 in.
(82 mm)
4.60 in.
(117 mm)
4.60 in. (117 mm)
Top
Side
2.25 in.
(57 mm)
)
SPECIFICATIONS
Power
Power supply
Current draw: 115 mA max. at 12V DC
Flow Sensor Input
Pulse Type Sensors:
Signal amplitude 2.5V DC threshold
Signal limits Vin < 12V (DC or AC peak)
Frequency range 4…1000 Hz
Sine Wave Sensors:
Signal amplitude 30 mV p-p threshold
Signal limits Vin < 12V (DC or AC peak)
Frequency 4…1000 Hz
Power Out Terminal 15V DC ± 1V DC @ 500 Ω source Impedance
Temperature Sensor (2 of same type required) Input
• 10k Ω thermistor, 2 wire, type II, 10k Ω @ 25° C (77° F)
• 100 Ω platinum RTD, DIN calibration curve, conforms to IEC-751 Standard
• 1000 Ω platinum RTD, DIN calibration curve, conforms to IEC-751 Standard
Calibration range of measurement 0…150° C (32…302° F)
Communication Port
Pulse Output
• Isolated solid-state switch in any standard or custom total units
• Adjustable 50 ms to 1.0 second pulse output width in 50 ms increments
Maximum sinking current: 100 mA @ 36V DC
Temperature
Operating 0…70° C (32…158° F)
Weight 4.8 oz with connector headers installed
Sensor Calibration
Badger Meter Use K and offset values provided in sensor manual
Other Sensors
Units of Measure
Flow Measurement:
Energy Measurement:
Temperature Measurement Fahrenheit, Centigrade
Programming
• Requires PC or laptop running Windows 2000, XP, Vista or Windows 7
• Data Industrial 340BN/MB Programming Kit A-301-20 containing software and
Data Industrial Series programming cable is required for programming and setup
12…24V AC
12…35V DC
Pull-up: 15V DC @ 2k Ω source Impedance
RS-485 with termination, pull-up and
pull-down jumpers
Storage – 40…85° C (– 40…185° F)
Check with respected manufacturer of flow sensor
and with factory
gpm, gph, l/sec, l/min, l/hr, ft3/sec, ft3/min, ft3/hr, m3/
Rate
sec, m3/min, m3/hr
Gallons, Gallons X 100, Gallons X 1000, Liters, Cubic
Total
Feet, Cubic Meters
Rate kBtu/min, kBtu/hr, kW, MW, hp, tons
Total Btu, kBtu, MBtu, kWh, MWh, kJ, MJ
Figure 2: Plastic enclosure dimensions
Top
4.50 in. (114 mm)
Side
Figure 3: Metal enclosure dimensions
4.50 in.
(114 mm
2.00 in.
(50 mm)
Control. Manage. Optimize.
Data Industrial is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their respective entities. Due to continuous
research, product improvements and enhancements, Badger Meter reserves the right to change product or system specications without notice, except to the extent an
outstanding contractual obligation exists. © 2018 Badger Meter, Inc. All rights reserved.
www.badgermeter.com
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