Sigtronics SEH-40 User manual

…when it counts!
Model SEH-40
Headphone Instructions
The SEH-40 series of headphones are adjusted at the factory for
immediate use with all Sigtronics emergency apparatus intercoms
and radio adapters in emergency vehicles. The headphone is
equipped with a single plug and a coiled cord.
The headband is adjustable through a full range of motion, and the
locking nuts may be tightened to allow you to custom fit the head-
phone. Place the headphone over your head and adjust the slides
up until minimum pressure is felt on the top of your head. For max-
imum noise attenuation, the clamping pressure of the headband
has been set at the factory. Releasing the clamping pressure by
bending the headband is not advised, because loss of attenuation
will result.
When you first connect the headphone, turn the volume control on
the headphone up to the full clockwise position, then adjust the lis-
tening volume with the audio control of either your radio or inter-
com as appropriate. If applicable, crew members should also turn
their individual headphone volumes up fully. Doing this allows for
a full range of adjustment for each passenger, since those with the
most acute hearing can turn their headphone volume down, if
necessary.
continued on back…
The headphone parts may be cleaned with mild soap and water
using a soft cloth.Then dry immediately. Caution: Do Not immerse
any part of the headphone in water or any other liquid. Exposure to
moisture may cause internal corrosion and failure and will void your
manufacturers warranty.
Cleaning will help the headphone maintain its “like new” condition
for many years.
WARRANTY
Your headphone is covered by a limited one-year parts and labor
warranty. Please see the enclosed warranty card for details.
You may refer to the parts list on the reverse side, if you choose to
replace parts yourself. The parts list describes parts for this particu-
lar headphone only. Parts lists for other models are available on our
Web Site or can be obtained by contacting Sigtronics Corporation.
Sigtronics Corporation
178 East Arrow Highway
San Dimas, CA 91773
Phone: [phone]
E-mail: [e-mail]
Web Site: www.sigtronics.com

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SIGTRONICS SEH-40 HEADPHONE PARTS IDENTIFICATION BREAKDOWN
ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION
1100049 GROMMET, 5/16 INCH, RUBBER 11 100364 SCREW, 8-32 X 3/8, PHILLIPS HEAD 21 100258 CLIP, HEADBAND GUIDE, PLASTIC
2100063 KNOB, 3/8 INCH, BLACK 12 100366 WIRE, 2 CONDUCTOR, #24, BLACK, 28 INCHES 22 100393 CLIP, ANTI-ROTATION, YOKE, PLASTIC
3100077 POTENTIOMETER 13 100367 YOKE, EAR CUP MOUNT, METAL 23 100383 HEADBAND, METAL, STANDARD
4100079 RECEIVER, 300 OHM, MONO 14 100369 EAR SEAL, FOAM FILLED 24 100384 BRACKET, YOKE SUPPORT WITH TANG
5100108 SCREW, 4-40 X 1/4, THREAD FORMING 15 100370 RECEIVER MOUNT, HEADSET 25 800035 CABLE, HEADSET, STEREO, COILED
6100251 E-RING, EAR CUP TO YOKE RETAINER 16 100221 WIRE, #22, 19 STRAND, 4 INCH 26 800048 HEADBAND , WITH CUSHION, SE-40
7100252 NUT, HEX, 8-32, LOCKING 17 100373 SLIDE, YOKE BRACKET, LONG, NYLON 27 100568 STRAIN RELIEF, CABLE
8100361 EAR CUP, PRINTED AND DRILLED, MIC & NON MIC SIDE 18 100374 FOAM, SOUND ATTENUATING. NOTCHED, 1/2 INCH 28 100257 OPTIONAL – HEADBAND, METAL, LARGE
9100362 CLIP, CROSS-OVER, WIRE, PLASTIC 19 100376 FOAM, SOUND ATTENUATING. RECEIVER HOLE, 1/2 INCH 29 100402 OPTIONAL – EAR SEAL, GEL FILLED
10 100363 SCREW, 8-32 X 1/2, PHILLIPS HEAD 20 100379 FOAM, SOUND ATTENUATING, RECEIVER COVER, 1/4 INCH
3-19-2009
seh-40.pdf