Fluke 5502A, Руководство оператора

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Introduction and Specifications
Specifications
1
1-9
Specifications
General Specifications
The following tables list the 5502A specifications. All specifications are valid after allowing a warm-up period of
30 minutes, or twice the time the 5502A has been turned off. (For example, if the 5502A 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 tcal
±
5
°
C (tcal is the
ambient temperature when the 5502A 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.
Warmup Time ........................................................ Twice the time since last warmed up, to a maximum of 30 minutes.
Settling Time ......................................................... Less than 5 seconds for all functions and ranges except as noted.
Standard Interfaces .............................................. IEEE-488 (GPIB), RS-232
Temperature
Operating ............................................................ 0
°
C to 50
°
C
Calibration (tcal) .................................................. 15
°
C to 35
°
C
Storage ............................................................... -20
°
C to +70
°
C; The DC current ranges 0 to 1.09999 A and 1.1 A to
2.99999 A are sensitive to storage temperatures above 50
°
C. If the
5502A is stored above 50
°
C for greater than 30 minutes, these ranges
must be re-calibrated. Otherwise, the 90 day and 1 year uncertainties
of these ranges double.
Temperature Coefficient ....................................... Temperature coefficient for temperatures outside of tcal ±5
°
C is 10 %
of the stated specification per
°
C.
Relative Humidity
Operating ............................................................ <80 % to 30
°
C, <70 % to 40
°
C, <40 % to 50
°
C
Storage ............................................................... <95 %, non-condensing. After long periods of storage at high humidity,
a drying-out period (with power on) of at least one week may be
required.
Altitude
Operating ............................................................ 3,050 m (10,000 ft) maximum
Non-operating ..................................................... 12,200 m (40,000 ft) maximum
Safety ..................................................................... Complies with EN/IEC 61010-1:2001, CAN/CSA-C22.2 No.
61010-1-04, ANSI/UL 61010-1:2004;
Output Terminal Electrical Overload Protection Provides reverse-power protection, immediate output disconnection,
and/or fuse protection on the output terminals for all functions. This
protection is for applied external voltages up to
±
300 V peak.
Analog Low Isolation ............................................ 20 V normal operation, 400 V peak transient
EMC ........................................................................ Complies with EN/IEC 61326-1:2006, EN/IEC 61326-2-1:2006 for
controlled EM environments under the following conditions. If used in
areas with Electromagnetic fields of 1 to 3 V/m from 0.08-1GHz,
resistance outputs have a floor adder of 0.508
Ω
Performance not
specified above 3 V/m. This instrument may be susceptible to electro-
static discharge (ESD) to the binding posts. Good static awareness
practices should be followed when handling this and other pieces of
electronic equipment. Additionally this instrument may be susceptible
to electrical fast transients on the mains terminals. If any disturbances
in operation are observed, it is recommended that the rear panel
chassis ground terminal be connected to a known good earth ground
with a low inductance ground strap. Note that a mains power outlet
while providing a suitable ground for protection against electric shock
hazard may not provide an adequate ground to properly drain away
conducted rf disturbances and may in fact be the source of the
disturbance. This instrument was certified for EMC performance with
data I/O cables not in excess of 3m.
Line Power ............................................................. Line Voltage (selectable): 100 V, 120 V, 220 V, 240 V
Line Frequency: 47 Hz to 63 Hz
Line Voltage Variation:
±
10 % about line voltage
setting. For optimal performance at full dual