IVIE IE-10A, Owner'S And Operator'S Manual

Page: 54 / 88

ARCHITECT'S AND ENGINEER'S I CATIONS
The a u d i o spectrum a n a l y z e r s h a l l be capable o f o c t a v e bandwidth, r e a l -
t i m e a n a l y s i s o f t h e a u d i o spectrum. The a n a l y z e r s h a l l be capable o f
measuring sound p r e s s u r e l e v e l s w i t h e i t h e r an ANSI "A" weighted o r
A N S I
" C " w e i g h t e d reading.
The a n a l y z e r s h a l l have a s e l f c o n t a i n e d omnidi r e c t i onal condenser
microphone. Measurements through t h e microphone s h a l l be c a l i b r a t e d i n
dB-SPL f o r o c t a v e bandwidth a n a l y s i s , i n SPL f o r A weighted SPL
measurements, and i n SPL f o r C w e i g h t e d SPL measurements o v e r t h e
r a n g e o f 40 t o 146 dB-SPL.
The a n a l y z e r s h a l l have an e x t e r n a l s i g n a l i n p u t j a c k . Measurement o f
s i g n a l s t h r o u g h t h e e x t e r n a l i n p u t s h a l l be c a l i b r a t e d f r o m -110 t o
+
9 The a n a l y z e r s h a l l be capable o f measuring s i g n a l s up t o +49
RMS) u s i n g o p t i o n a l accessories.
The a n a l y z e r s h a l l be capable o f making o c t a v e bandwidth measurements
w i t h two s e l e c t a b l e d e t e c t o r response times.
The f a s t d e t e c t o r t i m e
s h a l l be s u i t a b l e f o r s i g n a l m o n i t o r i n g , and t h e slow d e t e c t o r response
t i m e s h a l l be s u i t a b l e f o r p i n k n o i s e a v e r a g i n g .
The a n a l y z e r s h a l l have a dynamic d i s p l a y range o f up t o and
s h a l l . have s e l e c t a b l e r e s o l u t i o n s o f
1, 2 o r 3 dB. The d i s p l a y b r i l l i a n c e
s h a l l a d j u s t a u t o m a t i c a l l y f o r ambient i g h t i n g c o n d i and t h e
g r a t i c u l e s h a l l i g h t l y i n darkened environments.
The a n a l y z e r s h a l l be capable o f b o t h b a t t e r y on from f a s t- charge
Ni-Cad b a t t e r i e s , and AC o p e r a t i o n f r o m 115 VAC and 230 VAC 50-60 Hz
l i n e s . I t
s h a l l possess a b a t t e r y s t a t u s i n d i c a t o r t o warn o f low
b a t t e r y c o n d i t i o n .
The a n a l y z e r s h a l l have a p r e c i s i o n p r e a m p l i f i e r w i t h a f l a t n e s s o f
+/-
dB and g a i n of
-
80 dB a d j u s t a b l e i n 10 dB s t e p s , and s h a l l have a
THD of 0.1% o r l e s s f o r a 2 Vrms o u t p u t .
The a n a l y z e r s h a l l be hand- held and must weigh l e s s t h a n 16 ozs. The
case of t h e a n a l y z e r s h a l l be aluminum f u s i o n bonded w i t h n y l o n .
The a n a l y z e r s h a l l be t h e Audio Spectrum A n a l y z e r manufactured by
I v i e E l e c t r o n i c s I n c o r p o r a t e d .
page 49