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9600 Accutach
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Measures & displays tachometer output frequency in Hz, RPM or %RPM
The Accutach is a versatile hand-held, battery operated
instrument that can be used in a wide variety of aircraft measurement and
calibration applications.
The following examples show its versatility:
- Measure the rotation of a
turbine rated at 12,000 RPM at 100% that drives a 70Hz tach generator at
100%.
- Measure the speed of a rotor
system rated at 450 RPM at 100% using a magnetic pickup with three single
interrupters and one double interrupter.
- Measure propeller RPM using
the 1-per-rev pulse from a synchrophasor.
The Model 9600 features a microprocessor that measures input
signal period, computes the frequency, controls the display, monitors the
keyboard, and stores settings. The keyboard consists of a power ON key, RESET
key, display LIGHT key, display CONTRAST control, and four MODE keys for data
entry and access to the software menu.
A CHANNEL knob is provided to select up to four input signals
from connector J1 or a single input signal from connector J2. |
Specifications
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Display
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1 Line by 16 Character Liquid Crystal Display, Backlighted
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Input
Frequency Range
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100 to 100,000 PRM, (1.6 to 1600 Hz)
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Accuracy
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0.1% +/- 1 Count
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Display Update Period
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0.6 second, nomial
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Averaging
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Exponential Weighing
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Input Signal Type
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Tach Generator, Magnetic Pickup, TTL
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Maximum Input Signal
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150 V peak AC
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Minimum Input Signal
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0.5 V peak
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Input Selection
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Four inputs from (J1), and one input from (J2)
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Battery
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Four AA size alkaline cells
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Battery Life
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75 hours, nominal (Operating), 1 Year, nominal (Off)
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Auto Shut-Off
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Powers down after two minutes with no input signal, to
save batteries
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Low Battery Indicator
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A warning message is displayed if battery voltage drops
below 4 Volts, nominal
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Operating Temperature
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0 to 50 Degrees C
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Chassis Dimensions
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7.7" x 3.9" x 1.6" (excluding connectors,
knob)
(19.6cm x 9.9cm x 4cm)
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Weight
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1.5 lbs (.68 kg) nominal (including batteries)
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Finish
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Ground support equipment yellow textured paint
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EMI
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Meets MIL-STD-461B
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Turbine Traders
offers calibration and repair for Chadwick-Helmuth 9600 Accutach.
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