Instruction manual

Special Appendix for ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
A-2 Special Instructions for Class I, Division 2 Revised Feb-2013
7. The UL listed nonincendive ControlWave GFC Plus may include
radio/modem communications (listed on the model specification)
that is used in conjunction with a 5W, 12V, 7AH lead acid battery
system. Connection to the radio or modem is approved as a
nonincendive circuit, so that Division 2 wiring methods are not
required.
WARNING
EXPLOSION HAZARD
Do not disconnect solar power from the battery
or any other power connections within the
ControlWave GFC Plus enclosure or any power
connections to optional items such as
radio/modem, or cabling to the display/keypad
unless the area is known to be nonhazardous.
WARNING
EXPLOSION HAZARD
Substitution of components may impair
suitability for use in Class I, Division 2
environments.
WARNING
EXPLOSION HAZARD
The area must be known to be nonhazardous
before servicing/replacing the unit and before
installing or removing I/O wiring.
WARNING
EXPLOSION HAZARD
Do NOT disconnect equipment unless power
has been disconnected and the area is known
to be non-hazardous.
Table A-1. Module/Board Customer Wiring Connectors
Module/Item Connector Wiring Notes
CPU/System Controller board TB1: 6-pin terminal block Solar power: User wired *
Primary power: Factory/User wired *
Auxiliary output: Factory/User wired *
CPU/System Controller board TB3: COM2, 8-pin
terminal block RS-232
Remote comm. port: For radio or external
network comm. Refer to model spec. and
item 6 of this document. When used for
network comm. use Div 2 wiring methods.
If COM2 is used in conjunction with a
radio/modem refer to item 7 of this
document.
CPU/System Controller board TB4: COM3, 5-pin
terminal block RS-232/RS-
485
RS-232/485 comm. port: For external
network comm. Refer to model spec. and
item 6 of this document.
CPU/System Controller board TB5: 4-pin terminal block Pulse input field wiring: Field I/O wiring