Power Monitoring and Protection

DTS 305 Series

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DTS 305 Series

Measurlogic Power Meters and Transducers DTS 305 Series

Measurlogic Power Meters and Transducers


The DTS 305 Series digital 3 phase power meter and power transducer provides you with unprecedented functionality, flexibility and performance in electrical measurement and control. The powerful DTS 305 is an extremely compact, easy to configure, simple to install IED (Intelligent Electronic Device). With the DTS 305, you only pay for the power meter usage hardware, software and functionality which you require, making this one of the most cost-effective products of its kind available on the market today. The DTS 305 provides the full spectrum of instantaneous and integrated electrical power measurements as well as flexible I/O options. These I/O options offer up to 6 onboard outputs, each of which may be independently ordered as either digital or analog as well as 4 digital I/O relay outputs or status inputs. The DTS 305 is a 3 phase power monitoring device which may be used for 3 or 4 wire systems. This makes the DTS 305 ideal for a wide range of applications from monitoring of power networks, load management to check metering. All of the DTS 305‘s measurements are available via its on-board Ethernet port. These may be viewed using the DTS Display local indication module or the DTS Config software system. The DTS 305 may be operated in stand-alone mode or integrated into a higher order energy management or SCADA system using its second RS-485 port running either Modbus or DNP 3.00 communication protocols.


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  • Auxiliary powered single / three phase energy submeter with auto-topology detection
  • Bi-directional for renewable systems (NET metering)
  • Interfaces with 1A, 5A and “safe” mV and RopeCTs
  • Embedded Ethernet connectivity – Modbus/TCP, BACnet/IP, SNMP or DNP 3.0
  • RS-485 connectivity – Modbus RTU or BACnet MS/TP
  • LonWorks FT-10 communications
  • 6 onboard outputs (digital or isolated analog) – optional
  • 4 digital I/O (pulse outputs or status/counter inputs) – optional
  • Optional remote DTS Display
  • Pulse output standard
  • Color coded pluggable connectivity
  • DIN rail or surface mounting
  • User configurable using DTS Config software
  • User-definable Modbus register area
  • Compatible with energy management and control software suites
  • Integrates seamlessly with AcquiSuite data acquisition server
  • ETL & BTL listed
  • SunSpec Alliance certified
  • Designed and Manufactured in the USA. Complies with the Buy American Provisions of ARRA Section 1605

Measuring Circuits:

Voltage range: 208-480V ac, L-L, 3 or 4 w (690V option):

Rated voltage: 280 V ac L-N / 485 V ac L-L:

Voltage overload: 1.2 x (1.05 x – 690V option):

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

Frequency: 45 to 65 Hz:

Rated current: 1A to 5A isolated 333 mV for mV CT version:

Current overload: 1.5 x for 1A or 5A versions 1.2 x for mV versions:

Current input burden: 0.5 VA @ 5 A:

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 0.5 (ANSI C12.20):

Power Supply:

Voltage: 100-240 or 100-277 Vac/dc, 12 or 24 or 48 Vdc:

Tolerance : -10%, +10%Frequency: 50/60 Hz for AC supply models only:

Burden: 5VA:

Operating temp: -4° to 131℉ (-20° to 55℃):

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

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


Connection: Pluggable terminals:

Case Material: Self-extinguishable, V0 plastic:

Protection: IP40:

Dimensions: 4”(102mm)H x 5.00”(127mm)D x 3.94”(100mm)W:

Weight: 1.25 lbs (0.57 kg):

Communications (Serial):

Connection: 3 way pluggable, screw terminal:

Protocols: Modbus RTU or BACnet MS/TP:

Communications (LonWorks):

Connection: 2 way pluggable, screw terminal:

Protocols: LonWorks FT-10:

Communications (Ethernet):

Connection: RJ45, 10/100Base-T:

Protocols: Modbus TCP or BACNet/IP or SNMP or DNP 3.0 over IP:

Analog Output (Isolated, Bi-directional):

Output Type: 1mA or 7.5 / 10 / 20mA available:

5 / 10Vdc:

Resolution: 16384 points (14 bit):

Max impedance: 500 ohms for a 20mA range:

Pulse / Status Outputs (Optional):

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

Pulse Width: 100 mS 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: 240Vac:

Max Switching Current: 120mA (350mA for 10mS):

Connection: 4x Pin-Pairs (Outputs A – D):

Counter / Status Inputs (Optional):

Type: Dry Contact:

Min Pulse Width: 50mS, Max 10 Pulses per Second:

Max Current/Voltage: 15mA / 18V:

Connection: 4x Pin-Pairs (Inputs A – D):

Standards & Safety:

ETL listing: 4001073:

Conforms to: UL Std 61010.1:

Certified to: CSA Std C22.2 # 61010.1:

EMC: 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 class A:

Other: IEC60688:

Category III – 280Vac / 485Vac: