46
±198.0 cents with ±0.005 cents accuracy throughout the scale.
C AL I B R A T I O N A C C U R A C Y :
Built-in 440.00 Hz crystal frequency standard for self-calibration, accurate to ±0.001 cents.
D I S PL A Y S :
Liquid crystal displays (LCD) for NOTE, OCTAVE and CENTS, Rotating light-emitting-diode (LED)
display for continuous analog FLAT or SHARP tuning indicator. Separate LED wide-range
sharp/flat indicator.
S T R E T C H C AL C U LA T O R :
Built-in stretch calculator with automatic selection of NOTE, OCTAVE and CENTS settings.
MEM O R Y M O D E :
Standard with the ability to memorize 122 complete 88-note tunings.
MEA S U R E M O D E :
Computer measures unknown pitch of a note automatically and displays cents deviation.
MI C R O P H O N E :
Built-in high-fidelity electret microphone. No external microphone required.
T EM P E R A T U R E D R IF T :
Less than ±0.01 cents in temperatures from 40
ϒ
F to 100
ϒ
F.
B A T T E R Y :
Rechargeable nickel-metal hydride (NiMH) battery with sixty to eighty hours of operation per
charge. Will recharge in 6 to 7 hours and has a long life expectancy. Accu-Tuner may be battery
operated or plugged into an AC line. Automatic shut down to conserve battery power after 30
minutes.
S I Z E & W E I G H T : 7.25" wide, 2" high and 4.5" deep. Weight 2.0 lbs.
INPUT/OUTPUT JACKS
U S B : Used to offload and load tunings into the Accu-Tuner IV, also for updating the operating
system.
A U D I O I N : Input for high-level audio signals from electronic pianos and organs.
MA G I N : Input for low-level audio signals, from magnetic pickups and similar devices.
FLT R O U T : Filtered audio output at pitch selected by NOTE, OCTAVE and CENTS settings.
O S C O U T : Oscillator output for broadcasting an oboe-like tone at pitch selected by NOTE,
OCTAVE and CENTS settings. (Use Speaker/Amplifier listed below.)
N O T E S W I T C H : Input for the foot pedal or thumb switch used to advance or decrement NOTE
setting by single semitones.
B A T C H G R : Input for battery charger plug.
ACCESS ORIES
AL UM I N U M C A S E S :
Inside Dimensions:
Size Width Depth
Height
Large 17.5” 12.25” 6.0”
Medium 15.25” 9.25”
6.5”
Small 12.5” 9.75” 4.75”
