Power Monitoring and Protection

DTS 307 Series

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DTS 307 Series

Measurlogic Power Meters and Transducers DTS 307 Series

Measurlogic Power Meters and Transducers


The DTS 307 Series is unique in that it has one of the smallest foot-prints of any submeter on the market, with dimensions of 3.11”(79mm) D x 4.25”(108mm) H x 1.38”(35mm) W. Along with a ultra-compact DIN rail design, the DTS 307 requires no external power source to operate and comes with color coded, pluggable connectivity. This meter can function in either a single, split or three phase environment and is equipped with auto-topology detection. It is certified to ANSI C12.20 Class 0.2 (Revenue Grade) providing the most accurate data acquisition available. The DTS 307 works with all “safe” 333mV current transformers and comes with on-board CT Reverse Algorithms for automatic correction of in-proper field mounted CTs. For remote configurability, all our DTS Series of meters are offered with our free DTS Config software platform; where you can conveniently choose from over 200 parameters at the frequency you require. The DTS Series of meters come with a User-definable Modbus register area. The DTS 307 supports these protocols, Modbus RTU and BACnet MS/TP; additionally, there is a Pulse (kWh) version. Also, if in the future, you decide to integrate renewable energy sources, the DTS 307 will conveniently operate as a Bi-directional NET meter. The DTS 307 is SunSpec Alliance certified and easily integrates with Building Automation Systems and Energy Monitoring Software. All the DTS Series is designed and manufactured in the USA and complies with the Buy American Provisions of ARRA Section 1605.


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  • Line powered single / three phase energy sub-meter with auto-topology detection
  • Ultra-Compact DIN rail design : 3.11” L x 1.38” W x 4.25” H
  • UL Listed, CE, FCC Part 15 Class B
  • Class 0.2 Energy Meter** (ANSI C12.20) – “Revenue grade”
  • 208-480 Vac (1P 2W, 1P 3W, 3P 4W)
  • Interfaces with “safe” mV and RopeCTs
  • RS-485 and/or Pulse (kWh) connectivity
  • Modbus RTU or BACnet MS/TP
  • Bi-directional for renewable systems (NET metering)
  • Color coded, pluggable connectivity
  • User configurable using DTS Config software
  • User-definable Modbus register area
  • Compatible with most Energy Management Software
  • SunSpec Alliance certified, BTL Listed
  • Designed and Manufactured in the USA. Complies with the Buy American Provisions of ARRA Section
  • Also available in a OEM board level format

Measuring Circuits:

Voltage range: 208-480V ac, L-L (CAT III):

120-300V ac L-N (CAT III):

Voltage overload: 1.2 x:

Voltage burden: <0.1 VA @ 280 V ac L-N:

Frequency: 45 to 65 Hz:

Rated current: 333 mV or model dependent:

Current overload: 1.2 x:

Power overload: 1.2 x:


Voltage: 0.5%, <0.2% typical (80-120%):

Current: 0.5%, <0.2% typical (10-120%):

Power: 0.5%, <0.2% typical (10-120%):

Power Factor: 0.5% (between 0.5 and 1.0):

Energy:** Class 0.2 (ANSI C12.20):

Voltage Supply:

Voltage: Powered from Phase A & B or Phase A & Neutral (model dependent):

Frequency: 50/60 Hz:

Burden: <2VA:

Low Voltage AC/DC Auxiliary Option:

Voltage options: 12-24Vdc or 24Vac:

Tolerance: ±10%:

Burden: <2VA:

Isolation: Must be powered from a Class 2 IEC 60950 isolated power supply:

Mechanical Connection:

Pluggable screw terminals suitable for 12AWG stranded wire (2.5mm2):

Case Material: Self-extinguishable, V0 plastic:

Protection: Nema 1 (IP40):

Dimensions: 4.25”(108mm) H x 3.11”(79mm) D x 1.38”(35mm) W:

Weight: 0.5lb (0.23 kg):


Operating temp: -4° to 158℉ (-20° to 70℃):

Storage temp: -40° to 185℉ (-40° to 85℃):

Humidity: 5 to 95% R.H. non-condensing:

Communications (Serial):

Connection: 3 way pluggable, screw terminal:

Protocols: Modbus RTU (SunSpec Certified) or BACnet MS/TP (BACnet Listed):

Pulse Output (Optional):

Type: Potential Free, N.O. Solid State Relay:

Pulse Width: 100mS default:

Min 50 mS, User configurable up to 10 Seconds:

Max 10 Pulses per Second:

Pulse Rate: 1 Pulse / 1 kWh default, User configurable:

Max On-Resistance: 30 ohm:

Max switching voltage: 50Vdc or 30Vac:

Max switching current: 120mA (350mA for 10mS):

Connection: Isolated Pin-Pair:

Standards & Safety:

UL listing: E488290:

Conforms to: UL Std 61010.1 3rd Edition, May 11, 2012, Revised July 15, 2015:

Certified to: CAN/CSA C22.2 # 61010.1-12 3rd Edition, Revision dated July 2015, IEC 61010-2-030: 2010 (First Edition):

EMC: IEC 61326-1 (2012) Ed 2, IEC 61000-3-2, IEC 61000-3-3, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11:

FCC: CISPR 11 Group1 Class B / FCC Part 15 Class B:

Other: Measurement Category III – 300Vac L-N / 520Vac L-L: