User Guide
EMS28 Protection Module
1. Features
• Operates with energise to run or energise to stop fuel solenoids.
• Simple switch closure initiates the starting sequence.
• Manual starting and stopping available from front panel.
• Monitors oil pressure or level and provides shutdown protection.
• Monitors engine temperature and provides shutdown protection.
• Monitors engine speed and provides optional shutdown protection.
• Maintains Engine Running Hours.
• Fully sequenced starting and stopping with retries.
• Displays starting and running sequence on display.
• Run output activates on successful engine start.
• Alarm output in the event of abnormal operation.
• Speed detection directly from Generator, MPU or Alternator output.
• External shutdown for Emergency Stop or pump protection
• Screwless front mounting
0
I
2. Typical applications include:
• Portable gensets
• Diesel pump sets
• Diesel air compressors
• Agricultural and Industrial machinery
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Feature
Specification
Overall Dimensions
110 x 100 x 60mm
Mounting Hole
96 x 96 mm
IP rating
IP66 front, IP55 rear
Supply Voltage
6 V to 32V DC
Nominal 12V or 24V Automotive
Supply Current
Standby
20ma @27.2 Volts, 20ma @13.6 Volts
Running
40ma @27.2 Volts, 20ma @13.6 Volts
Speed Input Sensitivity
0.5-350 Volts Pk
Input reference
0 volts common
Input Frequency Range
10Hz – 5KHz
Speed Sensing Options
50/60Hz AC, MPU, Magneto or alternator
Speed Display Options
RPM/Hz
Displayed frequency range
0 – 9999 RPM
0 – 99.9 Hz
Engine Hours
0 – 99999.9 Hours
Oil pressure sensor type
Switch close on fault
Resistive 10 to 180 Ohms (VDO/Datcon)
Resistive 0 to 90 Ohms (Pricol/Datcon)
Oil Pressure range
500, 750, 1000 KPa
Engine Temperature sensor type
Switch close on fault
Resistive (NTC)
Engine Temperature range
120ºC, 150ºC, 200ºC
Battery Volts measurement
6 to 32 Volts
Alarm output