Introduction
32 Agilent 240/280 Series AA User’s Guide
Power
System unit Required supply voltage Rating
240 AA 100 VAC +10% -5%
120, 220 or 240 VAC ±10%
230 VAC +14% -6%
230 VAC +6% -14%
50 or 60 Hz ±1 Hz
170 VA
280 AA 100 VAC +10% -5%
120, 220 or 240 VAC ±10%
230 VAC +14% -6%
230 VAC +6% -14%
50 or 60 Hz ±1 Hz
230 VA
Zeeman version
240Z AA 208-240 VAC ± 10 %
50 or 60 Hz ± 1 Hz
3500 VA **
280Z AA 208-240 VAC ± 10 %
50 or 60 Hz ± 1 Hz
3500 VA **
GTA accessory power supply 208, 220 or 240 VAC ± 10%
230 VAC + 14% - 6%
230 VAC + 6% - 14%
50 or 60 Hz ± 1 Hz
3500 VA **
** In normal operation, the Zeeman and GTA units draw surge
currents in excess of the nominal rating. Power supplies to these
units must be isolated from other supplies to the system and should
include delayed action protection devices such as circuit breakers or
motor start fuses.
Surges in the Zeeman instrument occur in the “read” cycle during
atomization and may be up to 28 A for up to 10 seconds in any
1 to 2 minute period.
Surges in the GTA accessory depend on the choice of ramp rate and
programmed temperature and may be up to 35 A for approximately
1 second, reducing to about 20 A for up to 10 seconds, perhaps
repeating every 1 to 2 minutes.
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