INTRODUCTION
The DE-097 Speed Sensor is a small DIN Rail Mounted unit intended for standby alternators, generators, and Pumps. It is housed in DIN Rail Mount case with aluminium cover plate. Terminal connections are made via a pluggable 16-way terminal block. The DE-097 provides monitoring of four different engine speeds. Typically these are: Zero Rpm, Starter Cut Out (SCO), Under Speed (US), and Over Speed (OS).
The DE-097 has an LCD Display for indicating the Current Engine RPM, SCO, US, and OS settings. The following settings can be adjusted using the Keypad:
• Zero Rpm
• SCO Rpm
• US Rpm
• OS Rpm
• Number Of Teeth on the Flywheel
• Over Speed Latch (ON or OFF)
NOTE: These settings will not be lost in the event of Power Loss.
Relays are ENERGISED when the Engine RPM is above the respective set speed, and DE-ENERGISED otherwise. When Over Speed Latch is set to “ON”, power must be removed from the unit in order to reset the Over Speed relay. The Zero Rpm setting is used to detect when the engine has stopped – this setting is adjustable and not set to 0 due to irregularity of the Input Signal at Low Engine RPM.
Datasheet DE097.pdf
SPECIFICATIONS
| Supply voltage: | 12 / 24V DC (Specify when ordering) |
| Signal Source: | Magnetic Pickup sensing ring gear rotation. May be paralleled with governor |
| Relay Contacts: | One change over on ZERO RPM |
| One change over on Starter Cut Out | |
| One change over on Under Speed | |
| One change over on Over Speed | |
| Contact Rating: | Change Over contact: 8A Resistive loading, 4A Inductove |
| Indicators: | LEDs for each Relay (LED on when Relay is Energised) |
| Character LCD Display | |
| Programming: | Zero RPM |
| Starter Cut Out | |
| Under Speed | |
| Over Speed | |
| Number of Teeth on Ring gear | |
| Over Speed Latch (ON / OFF) | |
| Controls: | Keypad – INCREASE, OK, DECREASE |
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