VAL Avionics NAV 2000 Instalační příručka Strana 163

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SV-EMS-220/221 Installation and Configuration
SkyView System Installation Guide - Revision R 7-55
Coolant Pressure Sensor
The coolant pressure sensor may be connected to any general purpose input pin on the SV-EMS-
220/221’s D37.
Kavlico Brand Dynon-Supplied Brand Fluid Pressure Sensors (101716-000)
Mount the pressure sensor to a fixed location using an Adel clamp or other secure method such
as using a transducer mounting block on the firewall. Unlike Dynon’s older fluid pressure
sensors, the Kavlico sensor has a dedicated ground wire, eliminating the need to use the sensor
case as ground. Next, connect the sensor to the coolant line using appropriate hoses and
fittings. Its pressure port has a 1/8-27 NPT pipe thread fitting; you may need adapters to
connect to the pressure port on your engine. Locate (or drill and tap) the pressure port along
the coolant line. This port must have a pressure fitting with a restrictor hole in it. This restrictor
hole ensures that, in the event of a sensor failure, coolant leakage rate is minimized, allowing
time for an emergency landing.
Connect the red wire to SV-EMS-220/221 D37 pin 18 (white/red). This connection may be
shared with other sensors, depending on your installation.
Connect the green wire to SV-EMS-220/221 D37 general purpose input of your choosing.
Connect the black wire to Ground. Any the black ground wires on the SV-EMS-220/221 D37
harness are suitable for this purpose.
Legacy Dynon-Supplied Coolant Pressure Sensor (100411-000)
The Dynon-supplied coolant pressure sensor is a 0-30 psi sensor (Dynon P/N 100411-000). First,
mount the pressure sensor to a fixed location using an Adel clamp or other secure method. The
pressure sensor must not be installed directly to the engine due to potential vibration
problems. Next, connect the sensor to the coolant line using appropriate hoses and fittings. Its
pressure port has a 1/8-27 NPT pipe thread fitting; you may need adapters to connect to the
pressure port on your engine. Locate (or drill and tap) the pressure port along the coolant line.
This port must have a pressure fitting with a restrictor hole in it. This restrictor hole ensures
that, in the event of a sensor failure, coolant leakage rate is minimized, allowing time for an
emergency landing.
Crimp a standard ¼” female Faston onto one of the grounds coming from the SV-EMS-
220/221’s EMS 37-pin Main Sensor Harness. Crimp another ¼” female Faston onto the wire that
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