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Specifications
Electrical
82
Table 13: Tone Definition (Continued)
Audible Indicator
Valid Button Press
Volume Setting
Power Requirements
Fuses
The battery provides at least eight hours of battery life when new and fully charged
with no alarms, no serial data, while using a pulse simulator set for 60 bpm, high
light and low modulation.
Type
Nickel metal hydride
Voltage
9.6 Volts DC, 3.8 AH
Recharge
6 hours
Shelf Life
2 months, new, fully charged battery
After 2 months storage the N-550B will run for 50% of stated
battery life
Parameter
Volume level
Pitch (±30 Hz)
Pulse width (±20 msec)
Pulse repetition interval
(±20 msec) (double burst)
Repetitions
Volume level
Pitch (±30 Hz)
Pulse width (±20 msec)
Pulse repetition interval
(±20 msec) (double burst)
Repetitions
Instrument
100 to 240 volts AC, 25 to 39 volt/amps to be
compliant with IEC 60601
qty 2, 2 A, 250 volts, slow
Battery
Value
Not changeable
784 Hz
30 msec
N/A
1
Adjustable alarm
volume
752 Hz
Infinite
N/A
N/A
-
-
1 sub
clause 10.2.2
-
blow, IEC (5 x 20 mm)
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