Sigtronics St-8s User manual

igtronics

Sigtronics

…when it counts!

Sigtronics Corporation

178 East Arrow Highway

San Dimas, CA 91773

Phone: 909 305-9399

E-mail: info@sigtronics.com

Web Site: www.sigtronics.com

Model ST-8S

Headset Instructions

The ST-8S series headset is adjusted at the factory for immediate use with all

Sigtronics emergency apparatus intercoms and radio adapters in emergency

vehicles. The headset is equipped with a single plug and a coiled cord.

The head strap is adjustable so you may custom t the headset. Place the headset

over your head and adjust the strap until minimum pressure is felt on the top of

your head. For maximum noise attenuation, the clamping pressure of the head-

band has been set at the factory. Releasing the clamping pressure by bending the

headband is not advised, because loss of attenuation will result.

The microphone boom is fully adjustable and will rotate 180 degrees for use on

the left or right side of the head.

Make sure you are speaking into the side of the mic labeled “Talk” or substantial

loss of gain will occur. Microphone placement should be at the corner of the mouth,

approximately ¼” from the lips.

When you rst connect the headset, turn the volume control on the headset up to

the full clockwise position, then adjust the listening volume with the audio control

of either your radio or intercom as appropriate. If applicable, crew members should

also turn their individual headset 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 headset volume down, if necessary.

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The headset parts may be cleaned with mild soap and water using a soft cloth.

Then dry immediately. Caution: Do Not immerse any part of the headset in water

or any other liquid. Be especially careful not to allow the microphone to become

wet! Exposure to moisture may cause internal corrosion and failure and will void

your manufacturers warranty.

Cleaning will help the headset maintain its “like new” condition for many years.

WINDSCREEN

The microphone windscreen will reduce annoying wind noise and breath pops

picked up by headset microphones. It also protects the microphone element

from dirt and moisture. The windscreen should be washed regularly to maintain

hygiene and avoid clogging. Wash in warm water and mild soap. Rinse thoroughly

and make sure it is completely dry before putting it back on.

To remove the windscreen, carefully grasp the windscreen lightly along its entire

length and remove from the microphone element being careful not to twist the

element itself.

Put the windscreen on the microphone by gently pulling from the open end. Do

not pull it so tightly that it stretches against the end of the microphone.

WARRANTY

Your headset is covered by a limited two-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 particular headset only. Parts lists

for other models are available on our Web Site or can be obtained by contacting

Sigtronics Corporation.

SIGTRONICS ST-8S HEADSET PARTS IDENTIFICATION BREAKDOWN

ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION ITEM P/N DESCRIPTION

1100772 HEADBAND EXTRUSION, 4 IN., ST-8 11 800193 MICROPHONE & FLEX BOOM ASSEMBLY 21 100379 FOAM, SOUND ATTENUATING, RECEIVER COVER, 1/4 INCH

2800220 HEADBAND, METAL, BLACK, WITH GROMMETS, ST-8 12 100597 NUT, HEX, 3/8-24, FLEX BOOM ADAPTER 22 800035 CABLE, HEADSET, STEREO, COILED

310 0411 STRAP, HEADSET, ST-8, BLACK 13 10 0611 WINDSCREEN, MICROPHONE, FOAM, BULK 23 100935 WIRE, #22, JUMPER, HEADSET, 4 INCH

4100451 STUD, ST-8, EAR CUP TO BAND MOUNT 14 90 0111 WINDSCREEN, MICROPHONE, FOAM, PACKAGED 24 100568 STRAIN RELIEF, CABLE

5100108 SCREW, 4 X 1/4, THREAD FORMING 15 100612 O-RING, WINDSCREEN RETAINER, ST-8 25 100769 KNOB, 1/2 INCH, BLACK, TACTICAL

6100742 NUT, HEX, 8-32, LOCKING, BLACK 16 800192 PREAMP 26 100077 POTENTIOMETER

7100252 NUT, HEX, 8-32, LOCKING 17 100369 EAR SEAL, FOAM FILLED 27 100858 RECEIVER AND MOUNT, 300 OHM, MONO

8100978 EAR CUP, PRINTED AND DRILLED, MICROPHONE SIDE 18 100684 FOAM, SOUND ATTENUATING, FOR SLOTTED EAR CUP ONLY 28 100675 OPTIONAL – HEADBAND, METAL, BLACK, LARGE

9100979 EAR CUP, PRINTED AND DRILLED, SLOTTED, NON-MIC SIDE 19 100374 FOAM, SOUND ATTENUATING. NOTCHED, 1/2 INCH 29 100402 OPTIONAL – EAR SEAL, GEL FILLED