The Firecom 4100 Portable Intercom System has been listed as Intrinsically Safe for use in Class I, II, and III, Division 1, Groups A, B, C, D, E, F, G hazardous locations.
CONFINED SPACE Definition A confined space has all of the following characteristics: • A restricted opening that makes entry and exit difficult • Large enough for an adult to enter completely • Not designed to be occupied Most confined spaces are designed to hold substances such as liquids, gases, and loose materials, or to house equip- ment.
Attendant Headset Port and Volume Control Firecom’s 4100 Portable Intercom System features six independent, full-duplex audio channels designed for continuous hands-free voice communications in confined space and high-noise environments. The six stations include four entrants, an attendant, and an additional monitoring station or accessory port. The system provides constant, real-time communications between all interfaced personnel.
Ground Connection The Firecom 4100 Portable Intercom System is powered by a sealed lead-acid rechargeable battery housed in the base unit. Before you can put the 4100 Portable Intercom System to work, you must charge the battery with a full charge.
Note: When the intercom lid is closed, the system automatically switches off. Connecting Headsets The 4100 Portable Intercom System headset includes heavy-duty cables with locking connectors and alignment features to assure correct wiring. To connect a headset to a cable, visually inspect both connectors for a notch in the female connector and a mating protrusion in the male connector.
Step 4. Alarm Buttons Each Firecom Portable Intercom headset comes with an alarm button. If a headset is plugged into one of the (4) entrant headset ports and the headset alarm button is depressed, a warning light will illuminate on the front panel indicating which entrant has activated their alarm and an audible buzzer will sound (reference figure 2).
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OPERATION AND SYSTEM TEST Entrant Team Alarm Light (4) Places Alarm Test Button Alarm Reset Button Step 6. System Test Headset users should take turns speaking and listening as a group to make sure communication is open between all participants. If one or more participants can not be heard or hear, adjust volumes, check the mute button, or refer to the Troubleshooting in this manual.
24 hours, the battery is unrecoverable. See Charging the Battery in this manual for charging details. • If the problem persists, disconnect the charger and return the unit to Firecom for battery replacement.
Substitution of components, unqualified service or maintenance will impair intrinsic safety. Contact Firecom for intrinsically safe repair services. If a problem persists in a headset or intercom unit, contact Firecom for a Return Merchandise Authorization (RMA) number. Return the headset or intercom for replacement or repair.
WARRANTY Two-Year Limited Warranty to the Original Purchaser Sonetics Corporation warrants to the original purchaser of its products, that they will be free from defects in materials and work- manship, under normal and proper use, for the period of two years from date of purchase. Sonetics Corporation will repair or replace, at its option, any parts showing factory defects during this warranty period, subject to the following provisions.
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