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7.2.3 Optional Temperature Compensation
The optional battery temperature compensation automatically adjusts charge
voltage setpoints based on the atmospheric temperature of the control
panel. If enabling this option it is imperative to have the battery bank and
charge controller installed in the same atmospheric environment. The default
compensation factor of is suitable for most lead-acid chemistry batteries. To
disable temperature compensation set the setpoint to zero.
7.2.4 Automatic Voltage Sensing
The MHC2500 charge controller automatically detects 12 volt or 24 volt battery
bank nominal voltage. Upon initial startup battery banks must be fully charged
so that the controller senses the appropriate range. All setpoints in the system
menus are automatically doubled for 24 VDC operation.
7.2.5 Battery Voltage to Customer SCADA
Wiring terminals are included in the control panel to send a battery charge level
signal to a SCADA or similar system. To use this circuit, the control panel must be
supplied with a +24VDC power source on the (+) terminal. The control system
then returns a 4-20 mA signal (0-100% charged) on the (-) terminal.
7.2.6
Specifications
Specifications
MHC2500
Output Current Rating
25A
Nominal Battery Voltage
12 / 24 VDC
Generator Input Voltage
0-60 VAC
Standby Power Consumption
Typical operating power consumption.
1-watts
Maximum Power Consumption
Temporary, during motorized valve modulation only.
45-watts
Charge Algorithm
3-Stage: Bulk/Acceptance/Float
Turbine Start Voltage
11.9 V (Range 10.0 to 16.5 V)
Acceptance Voltage
14.4 V (Range 12.0 to 16.5 V)
Float Voltage
13.2 V (Range 12.0 to 16.5 V)
Equalization Voltage
15.2 V (Range 12.0 to 16.5 V)
Acceptance Time
120 Minutes (Range 5 to 360 minutes)
Equalize Time
120 Minutes (Range 5 to 360 minutes)
Temperature Compensation
Optional compensation adjusts charge voltage setpoints
based on atmospheric temperature of the charge controller.
-4.00 mV/°C/cell correction factor
(Range -0.00 to -5.00 mV/C/cell)
Summary of Contents for M300 Pico
Page 1: ...M300 Pico Hydro System Installation Operations Maintenance Version 2 0 0 1 ...
Page 2: ...Page 2 ...
Page 4: ...Page 4 ...
Page 6: ...Page 6 ...
Page 8: ...Page 8 ...
Page 16: ...Page 16 ...
Page 17: ...Page 17 4 Equipment Installation ...
Page 29: ...Page 29 5 System Operation ...
Page 36: ...Page 36 ...
Page 37: ...Page 37 6 Maintenance ...
Page 39: ...Page 39 7 Appendix ...
Page 48: ...Page 48 7 4 Equipment Drawings and Performance Curves ...