Astatic 631L User manual

Description
TheAstaticModel631Lisanoisecancellingdynamicmicrophonedesigned
forclosetalking,handheld applications in quality soundinstallationswhere
backgroundnoiseis a problem. Thefrequencyresponse, especially tailored
forvoice communications, providesacrisp, clear,highlyintelligiblesound
with 360 degrees minimization of background noise. A soft lip guard is
positioned to assure proper close talk voice spacing by the operator. The
Model 631L, with modern "tear drop" styling, offers extreme reliability,
convenienthandling, ruggedconstruction andhigh performancefor years
of dependable service.
The dynamic cartridge has a rugged polyester diaphragm which resists
moisture,temperature extremes, mostacids, alkalies andsolvents. Molded
inhighimpactCycolac,theModel631Lcomes with a permanentlyattached,
heavyduty, four conductor, two shielded, coil cord.The631Lhas asimple
tooperate DPDTlong life,trouble freeswitch. TheModel 631L has a low
impedance output and is factory wired normally open. The Model 631L
may be rewired in the field if a line shorting function is desired.
APPLICATIONS
The Astatic Model 631L, because of its' professional sound and rugged
constructionand highly effectivebackground noisereduction capabilities,
is an excellent choice for any application requiring a hand held, noise
cancellingmicrophones for difficult noise environments such asfactories,
airports,restaurants,mills,etc.andfortwo-waycommunicationsintaxicabs,
buses,airplanes, helicopters,construction, police and fire vehicles, etc.
631L
DYNAMIC NOISE CANCELING
MICROPHONE
CommercialAudioProducts

SPECIFICATIONS FOR 631L
TWO-YEARLIMITEDWARRANTY
Omnitronics, LLC. (“ASTATIC”) hereby warrants that this product will be free of defects in material and workmanship for a period of two years
from the date of purchase. In the unlikely event a defect occurs ASTATIC will, at its option, either repair or replace with a new unit of equal or
greater value. You should retain proof of purchase to validate the purchase date and return it with any warranty claim. Return warranty claims
carefully packed, insured and prepaid to the Service Department, 341 Harbor St. • Conneaut, OH 44030.
This warranty excludes exterior finish or appearance, damage from abuse, misuse of the product, use contrary to ASTATIC’s instructions or
unauthorized repair.All implied warranties or merchantability or fitness for a particular purpose are hereby disclaimed and ASTATIC hereby
disclaims liability for incidental, special or consequential damages resulting from the use or unavailability of this product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state. Some states do not allow the
exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above exclusions and
limitations may not apply to you.
Note: No other warranty, written or oral is authorized by Omnitronics, LLC
Specifications
Element:
Dynamicnoise cancelling
Frequency Response:
100to 5000 Hz
Output Level:
-58 dB (0 dB = 1mw / 10 microbars)
-80 dB (0 dB = 1 volt / microbar)
1.0 mV/PA
Impedance:
200 ohms, matches 50 to 1000 ohms
Cable:
Fourconductor,twoshielded, permanentlyattached,
heavy duty, coil cord that extends to 1.8m (6 ft.)
Switch:
Operated by press-to-talk lever, DPDT long life, trouble free switch
withspring return, has smooth feel. Wirednormally open
Housing:
Durablemolded blackCycolac
Dimensions:
100mm(3-15/16") high x 75.4mm (2-3/32) wide x66.7mm (2-5/8")
deep
Weight:
284 grams (10 oz.)
The model 631L may be rewired in the field. If a line-shorting function is
desired, remove the rear housing and add a jumper wire as indicated
46873-26-00/Rev.1/8-5-04/S.W.