Pub. 42004-156D
GAI-Tronics P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374
n
800-492-1212
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Fax: 610-775-6540
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TRONICS
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G A I - T R O N I C S ®
A H U B B E L L C O M P A N Y
Model 780-001, 785-001, 7805-001, and
7855-001 Explosion-proof Handset
Stations
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains sensitive
business and technical information that is confidential and proprietary to GAI-Tronics. GAI-Tronics retains
all intellectual property and other rights in or to the information contained herein, and such information may
only be used in connection with the operation of your GAI-Tronics product or system. This manual may not
be disclosed in any form, in whole or in part, directly or indirectly, to any third party.
General Information
GAI-Tronics hazardous area Page/Party
®
handset stations are designed to provide safe and clear
communications in hazardous areas, even in high-noise situations. These models are NRTL certified for
use in the US and Canada for the following areas: Class I, Div. 1, Groups C and D; Class II, Div. 1,
Groups E, F, and G; and Class III, Div. 1.
Each of these models includes a front-panel push button for paging, a 6-foot PVC coil cord, a noise-
canceling microphone for reduced transmission of background noise, and sidetone circuitry to reduce
amplification of the user’s voice and background noise into their earpiece. An electrical safety barrier
mounted inside the housing creates an intrinsically-safe handset. Multi-party stations include a durable
rotary switch for party line selection. The weatherproof stations include a nonmetallic housing with a front
door. This installation manual covers the following models:
Model
Description
780-001
Explosion-proof Handset Station, indoor, 120 V ac, single party
7805-001
Explosion-proof Handset Station, indoor, 120 V ac, multi-party
785-001
Explosion-proof Handset Station, weatherproof, 120 V ac, single party
7855-001
Explosion-proof Handset Station, weatherproof, 120 V ac, multi-party
This manual provides instructions for station placement and mounting. Refer to Pub. 42004-184, 42004-
238, or 42004-239, as applicable, for information detailing how to maintain the explosion-proof integrity
of the stations. The appropriate publication is packed with each station.
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