5520A
Service Manual
1-6
1-8. Specifications
The following tables list the 5520A specifications. All specifications are valid after
allowing a warm-up period of 30 minutes, or twice the time the 5520A has been turned
off. (For example, if the 5520A has been turned off for 5 minutes, the warm-up period is
10 minutes.)
All specifications apply for the temperature and time period indicated. For temperatures
outside of t
cal
±5 °C (t
cal
is the ambient temperature when the 5520A was calibrated), the
temperature coefficient as stated in the General Specifications must be applied.
The specifications also assume the Calibrator is zeroed every seven days or whenever the
ambient temperature changes more than 5 °C. The tightest ohms specifications are
maintained with a zero cal every 12 hours within ±1 °C of use.
Also see additional specifications later in this chapter for information on extended
specifications for ac voltage and current. The dimensional outline for the 5520A
Calibrator is shown in Figure 1-3.
POWER
I
O
0•
123
456
789
ENTER
M
k
m
VHz
FIELD
EDIT
/
+
F
OPR EARTH EXGRD SCOPE MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡CA
MULT
x
DIV
÷
MODES
MORE
STBY
43.2 cm (17 in)
47.0 cm (18.5 in) 6.4 cm
(2.5 in)
For Cable
Access
17.8 cm
(7 in)
HI
LO
TRIG
GUARD
TC
20A
NORMAL AUX
5520A CALIBRATOR
SCOPE
OUT
V, , ,
RTD
A, -SENSE,
AUX V
20V PK MAX
20V PK MAX
nn032f.eps
Figure 1-3. 5520A Calibrator Dimensional Outline