GAI-Tronics DEX-101 Hazardous Area Driller's Intercom Station - Manual (Page 13)

Pub. 42004-679L2G
M ODEL DEX-10 X AND DEX-20 X D RILLER ’ S I NTERCOM S TATIONS Page 12 of 13
f:\standard ioms - current release\42004 instr. manuals\42004-679l2g.doc
07/13
Maintenance
General Information
If you experience additional problems, please contact the GAI-Tronics Field Service Department at
1-800-492-1212 and follow the voice prompts.
In order to ensure explosion-proof integrity, repairs to this equipment are to be made ONLY by the
GAI-Tronics Field Service Department and/or factory-authorized personnel. Factory-authorized
personnel must reseal the unit by first checking that all flange surfaces are free of gouges or
scratches. Apply a light coating of Killark “LUBG” lubricant to all flanged surfaces before closing.
Install the bolts and tighten to 30 ft-lbs.
WARNING
Always remove power to this station and any associated equipment before beginning any
maintenance.
Troubleshooting
Problem Possible Solution
Low speaker volume Increase the actual and/or maximum volume settings in the configuration.
Refer to the “Volume Configuration” section of the Central Manual for
details.
High speaker volume Decrease the actual and/or maximum volume settings in the configuration.
Refer to the “Volume Configuration” section of the Central Manual for
details.
No speaker output Set the station’s attendant contacts OUT 1 to be active while the conversation
is active and when the loudspeaker is active. Refer to the “Attendant
Contacts Configuration” section of the Central Manual for details.
No beacon contact Verify the station’s attendant contacts OUT 2 are active for the desired
condition. Refer to the “Attendant Contacts Configuration” section of the
Central Switch manual for details.
Feedback 1. Point the station speakers in opposite directions.
2. Reduce the speaker volume of the stations. Refer to the “Volume
Configuration” section of the Central Switch manual for details.
3. Increase the distance between stations.
4. Change the mode of operation from duplex to simplex. Refer to the
“Simplex Configuration” section of the Central Switch manual for details.
5. Two stations can be barred from communication. Refer to the
“Protection against Feedback Configuration” section of the Central
Switch manual for details.