CiDRA SONARtrac HD VF-100 - Manual (Page 44)

Copyright © 2006 CiDRA Corporation Page 8-4
20638-02 Rev 01
Note: On those transmitters installed in Class I Division 2 areas,
cable glands rated for NEMA 4X (minimum rating) must be used. Any
unused cable gland holes must be sealed with NEMA 4X rated hole
plugs. Also, the four cover sealing screws on the transmitter cover
must be securely tightened in order to ensure a proper seal.
WARNING
Transmitter cover screws must be securely tightened and NEMA
4X rated cable glands and hole plugs must be used in Class I
Division 2 applications. Failure to do so may result in violation
of Class I Division 2 certification.
8.4.2 Transmitter Output, Sensor and Sensor Head Connections
The following figure shows the layout of the transmitter terminal strip
board. This board is divided into three sections.
The Section#1 terminal blocks are for transmitter outputs.
The Section #2 terminal blocks are for external sensor inputs
(pressure and temperature).
The Section #3 terminal blocks are for the cable interface to the
sensor head. This consists of 12 twisted pairs of conductors plus a
cable drain wire (shield). For Class I, Division 2 rated versions these
are to be treated as non-incendive field wiring.
Figure 35 Terminal Board Layout
Section #3 Section #1 Section #2