DE-3000 IOI 7-17
All rights reserved © ALTRONIC, LLC 2017
7
ning them in a protective conduit or in sheaths where appropriate. In addition, it
is essential that the following practices be adhered to:
A. Never run sensor wires in the same conduit with ignition wiring or other
high energy wiring such as the AC line power.
B. Keep secondary wires to spark plugs and other high voltage wiring at
least eight inches (200mm) away from sensor and sensor wiring.
C. Sensor switches may be connected to any passive device using contacts
such as standard switch gauges, pressure or level switches. DO NOT con-
nect sensor leads to any voltage producing element.
D. In the case of a field conversion, where sensors have previously been
used with Murphy tattletales, it is recommended that the sensors be
checked frequently when the DE system is first put into use. Sensor
contacts may be burned or pitted from past exposure to ignition system
primary voltage. It is advisable to replace such sensors.
E. If it becomes necessary to check sensor switch to panel wiring with an
ohmmeter or other checker, first DISCONNECT the plug-in terminal strips
from the Terminal Module. Applying voltage to the DE-3000 system
through the sensor leads may damage the device. The area should be
tested as non-hazardous before such testing commences.
ANALOG SENSOR WIRING
For each analog monitored point, inputs 01–60, select a transducer - either an
Altronic pressure or temperature transducer listed above or one that outputs a
signal in the range of 0 to 5 Vdc or 0 to 25 mA. Mount as described above. Use
cable assembly 693008-x or similar to wire transducer to the Terminal Module.
An internal 5 volt sensor supply (500 mA. max.) is available to power the Altronic
transducers; See wiring diagrams. If the 5 volt sensor supply exits the panel, it
must be fused with a 0.5 ampere fuse. If 24Vdc powered sensors are used, the
24 volt supply to them must be fused appropriately. Take care not to damage the
insulation when installing and take precautions against later damage from vibra-
tion, abrasion, or liquids in conduits. In addition, it is essential that the following
practices be adhered to:
A. Never run sensor wires in the same conduit with ignition wiring or other
high energy wiring such as AC line power.
B. Keep secondary wires to spark plugs and other high voltage wiring at
least eight inches (200mm) away from sensor and sensor wiring.
6.4 THERMOCOUPLES AND THERMOCOUPLE EXTENSION WIRE
Grounded or ungrounded type J or K thermocouples may be used. Use thermo-
couple extension wire of the same type as the thermocouple probe to connect to
the terminal module. Use stranded thermocouple wire having a moisture-resis-
tant insulation such as PVC; for higher ambient temperatures, Teflon or B-fibre
insulated thermocouple wire is recommended. To ensure that an accurate signal
is transmitted to the device, avoid any added junctions, splices and contact with
other metals. On unused channels, leave the small jumper wire supplied with the
system in place. Take care not to damage the insulation when installing and take
precautions against later damage from vibration, abrasion, or liquids in conduits.
In addition, it is essential that the following practices be adhered to:
A. Never run sensor wires in the same conduit with ignition wiring or other
high energy wiring such as AC line power.
B. Keep secondary wires to spark plugs and other high voltage wiring at
least eight inches (200mm) away from sensor and sensor wiring.
6.5 LUBE/NO-FLOW SENSOR:
Channels 27 and 28 may be used for a lube/no-flow proximity cycle switch as
an option. Wire the sensor according to section 6.3. The Sensor may be wired
as either a N/O or a N/C with a jumper. The DIP switches on the terminal board
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