Det-Tronics PIRECL Infrared Hydrocarbon Gas Detector PointWatch Eclipse - Manual (Page 61)

H-1 95-8526 14.2
Appendix H
eAGle QUAntUM preMier coMpAtiBle eclipse
instAllAtion AnD WirinG
The Eagle Quantum Premier (EQP) version of the Model PIRECL PointWatch Eclipse uses the identical installation
procedure, device location guidelines, and power supply requirements as described in the “Installation” section of this
manual. Refer to the EQP version wiring diagram for specific wiring termination guidance.
An important difference in EQP applications is that LON network cabling will be routed both in and out from the the EQP
Eclipse enclosure, so this requirement should be anticipated and planned for during EQP Eclipse installation.
ImpoRtANt
Det-Tronics recommends the use of shielded cable (required by ATEX) to prevent external electromagnetic
interference from affecting field devices.
ImpoRtANt
For best fault isolation performance, the maximum LON wiring length should not exceed 1600 feet (500 meters).
ImpoRtANt
Be sure that selected cable meets all job specifications. The use of other cable types can degrade system
operation. If necessary, consult factory for further suggested cable types.
Table H-1—LON Maximum cable Lengths
Note: *use the same type of cable in each wiring segment between
network extenders.
**Maximum wire lengths represent the linear wire distance of
LON communications wiring between network extenders.
The maximum wire lengths given in Table C-1 are based upon
the cable’s physical and electrical characteristics.
lon cable
(Manufacturer and part no.)* Maximum length**
Feet Meters
Belden 8719 6,500 2,000
Belden 8471 6,500 2,000
FSI 0050-000006-00-NPLFP 6,500 2,000
Technor BFOU 4,900 1,500
Level IV, 22 AWG 4,500 1,370