TSLM - M601 Operational & Install Manual
Limiting (EHT) Circuit
The limiting valve or EHT (electro-hydraulic transducer) is used to restrict fuel flow to the engine
when activated. As a precaution we recommend incorporating a LIMIT ENABLE switch as shown
below. This switch allows the pilot to remove any doubt that the TSLM may be activating the EHT
valve when it is not supposed to.
Figure 8 – EHT wiring with Limiter Enable Switch
Alternatively a LIMITER DISABLE switch can be incorporated as shown below.
Figure 9 – EHT wiring with Limiter Disable Switch
06/29/16 © 2016 VR Avionics page 19 of 33
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