8-14 WF1946B
8.7 General items
z Input/output ground
The ground of FUNCTION OUT, SYNC OUT, EXT AM IN and EXT ADD IN are floating from the
chassis, within 1 channel these four signal input/output grounds are common.
Signal ground withstand voltage: ± 42 Vpeak, 30 Vrms (DC to 20 kHz, continuous) Individually for CH1
and CH2.
All other signal input/output grounds are connected to the chassis.
z Power supply
Power supply voltage range AC100 V/ 115 V/ 230 V
Power supply frequency range 50/60 Hz ± 2 Hz
Power supply fuse Time lag 2 A (100 V/ 115 V) or time lag 1 A (230 V)
250 V, φ5.2×20 mm
Power consumption 100 VA and below
Over voltage cat. II
z Cooling
Forced-air cooling, rear exhaust
z Setup condition
Horizontal (Within 10 °)
z Environmental conditions
Ambient temperature and humidity range
Performance guarantee + 5 to +35ﾟC, 5 to 85%RH (no condensation at an absolute humidity of 1
to 25 g/m
3
)
Storage −10 to +50ﾟC, 5 to 95%RH (no condensation at an absolute humidity of
1 to 29 g/m
3
)
Pollution degree 2
z Insulation resistance
20 MΩ and more (DC 500 V, power input lines versus chassis).
z Withstand voltage
AC 1500 V (power input lines versus chassis).
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