Programmable Ampere Hour Controller

Programmable Ampere Hour Controller

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AHC 600 Programmable Ampere Hour Controller


  • Based on state of art latest micro controller technology with Watchdog feature for fail safe operation.
  • Acceptability of various analog inputs from DC Shunt.
  • A high resolution of 20000 counts (max) for Ampere rate & 999999 counts (max) for Ampere hour Totalizer & Batch Counter.
  • Highly informative, user friendly display & keyboard interface with separate indication for Ampere rate, Total & Batch.
  • Relay control action can be programmable.
  • Programmable latch OR non-latch facility for relay & relay indication.
  • User selectable batch quantity, batch counter & reset facility through keyboard & external contacts. 
  • Non-Volatile battery backup memory to store data in case of power failure with configurable power up recovery option.
  • Isolated RS485 communication with MODBUS RTU Protocol
  • Isolated retransmission of process value signal (Optional).
  • Configurable retransmission range setting by users.
  • Flameproof version is available on request.


  • Metal Extrusion,
  • Electroplating,
  • Electro Polishing & Galvanizing,
  • P.C.B. Manufacturing,
  • Battery Charging,
  • Hydro Generations,
  • Electro Dip Painting,
  • D.C. Substation 


Analog Input

0 - 75mvolt from DC Shunt.

Sensor Break

Under Range 1'UndEr', Over range 'ouEr', -oPEn indication for  0-75mV


0 to 20000 (5 digit) counts of Ampere rate configurable as per Second, Min, Hour.
0 to 999999 (6 digit) counts of Ampere Hour  Totalizer.
0 to 999999 (6 digit) Batch counter to know total no. of Batch completed.


Field programmable decimal point selection for Ampere Indication by users.


By 6 keys on front panel.

Alarm Output

1 independent set point for Ampere rate setting.

2 Independent set points for Ampere Hour Totalizer setting

1 independent NO/C/NC contact for Ampere rate indication.

2 independent NO/C/NC contact for Ampere Hour total indication.

1 independent NO/C/NC contact for fail safe operation.

Relay Specification

5Amp. / 250VAC, 5Amp. / 30VDC at resistive load. 

Control Action

L & H, H & VH, L & VL control action facility individual for each relay. 
Auto reset pulse output for Batch application 


5 Digit for 20000 count for Ampere rate indication.
6 Digit for 999999 count for Ampere Hour Totalizer indication.

8 L.E.D.s for RL1, RL2,  RL3, FAULT, PROG, SQR, TX, RX.


Non-Volatile memory to store the Totalizer value, Batch count, in case of power failure with 4 options of power up recovery i.e. No memory recovery, Batch memory recovery, Totalizer memory recovery & All memory recovery.


Provision for Total reset from the panel as well as remote reset from back terminal through potential free contacts input for Totalizer.


230VAC +10% OR 110VAC +10% OR 24VDC.


Panel mounting / Wall mounting for flameproof model.


96(W) X 96(H) X 175(D) in mm. including backside connector.


92(W) X 92(H) in mm.


ABS Plastic, White Color


a) Isolated RS485 Serial port with MODBUS RTU Protocol output for PC interface.
b) Isolated 4 to 20mA retransmission programmable output for recorder or PLC proportional to selective range.
c) Flameproof version is available on request for hazardous application. 


MODBUS RTU Protocol support to update instrument setting through PC. Powerful SCADA software is available.


 Weight : 1.5 Kg.