A wide range of high quality controllers for various power applications

SmartGen HMT300 Multifunctional Transmitter

* All prices on this website are retail in USD on EXW incoterms


Technical Parameters:
Monitor Interface  RS485
DC Supply  DC(8-35)V
Case Dimensions(mm)  107.6*89.7*60.7
Panel Cutout(mm)  35mm guide rail or M4 screw
Operating Temp.  (-30~+70)˚C
Weight  0.30kg

Product Overview:
HMT300 multifunctional transmitter integrates digital, intelligent and network technology, which is used for collecting voltage, current, power and frequency and outputting related actions if data errors occur, for the purpose of protecting the device.

HMT300 multifunctional transmitter adopts micro-processor technology, which makes it possible to precisely do parameter measuring, fixed value adjustment, set value adjusting etc. All parameters can be configured on front panel or through RS485 port via PC. It can be widely used for all types of power distribution devices with compact structure, simple wirings and high reliability.


1.RS485 communication port: through which data measuring and parameter setting can be done for the module on PC with software.

2.Protections for over/under voltage, over/under frequency, reverse power, over power and over current.

3.Current detection alarm makes it possible to do 3 times over current detection and corresponding alarms.

4.With voltage harmonic test function, each phase voltage harmonic distortion rate and 3-31 times harmonic can be tested.

5.With current harmonic test function, each phase current harmonic distortion rate and 3-31 times harmonic can be tested.

6.Suitable for 3-phase 4-wire, 3-phase 3-wire, single phase 2-wire, and 2-phase 3-wire systems with frequency 50/60Hz;

7.Collects and shows gen 3-phase voltage, 3-phase current, frequency and power parameters.


  Line voltage (Uab, Ubc, and Uca)

  Phase voltage (Ua, Ub, and Uc)

  Frequency  Hz


  Current    Ia, Ib, Ic                                A (unit)

  Each phase and total active power  P                kW (unit)

  Each phase and total reactive power  Q              kvar (unit)

  Each phase and average power factor  PF                                  

8.Parameter setting function: parameters can be modified and stored in internal FLASH memory and cannot be lost even in case of power outage; all of them can be adjusted on front panel of the controller.

9.With -20mA~+20mA/-10V~+10V analog output function, corresponding data can be turned into analog data for output.

10.Wide power supply range DC(8~35)V, which is suitable for different power voltage environments.

11.All parameters apply digital adjustment, getting rid of conventional analog modulation with normal potentiometer, improving wholesome reliability and stability.

12.Module is mounted with the 35mm guide rail.

Why SmartGen?

  • More than 200,000 units yearly
  •  19 years of successful business
  • More than 50 offices worldwide
  • Almost 200 technology patents
  • ISO, GM and CCSR certificates
  • High quality and low prices
  •  Wide variety of generator parts


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