Fluke 2180A - Manual (Page 11)

2180A
Table 1-4. General Specifications (cont)
OPERATING TEMPERATURE
0 to 50°C
(Y2009: Oto 40°C)
TEMPERATURE COEFFICIENT
±15 ppm/°C from 25°C
ACCURACY vs WIRE LENGTH
No lead resistance error 4-wire RTD's if R 2
adjustment on the RTD Input Module Is
used. Otherwise, 0.04°C/i2 resistance of any
RTD EXCITATION CURRENT
Nominal 0.5 mA.
one input lead if R
2
is not adjusted.
COMMON MODE VOLTAGE
DISPLAY
F or C, switch-selectable, 7-segment LEDs 1.1 cm
high
350V dc, 250V ac rms max.
NORMAL MODE REJECTION
RESOLUTION
0.01 below 204 C for platinum RTD's, automatically
shifting to 0.1° above 204°C (93°C for nickel RTD's).
If readings are decreasing, shift Is at 77°C for platinum,
66°C for nickel.
>90 dB at DC, 50, 60, and 400 Hz ±0.1%.
RESPONSE TIME
1 second typical.
MEASUREMENT METHOD ZERO DRIFT
Dual slope integration, under microcomputer control.
100 ms integration period, three readings per second.
A/D Resolution is 100,000 counts at full-scale.
Automatic zero correction.
RTD TYPES
LINEARIZATION TECHNIQUES
Computer algorithm, 4th order curve fit.
100S2 385 Pt (DIN), 390 Pt, 3916 Pt, 392 Pt,
100S2NÌ (DIN), lOnCU.
COMMON MODE REJECTION
>160 dB at DC, 50, 60, and 400 Hz ±0.1% with 100i2
unbalance at inputs.
VOLTAGE RANGE (CALIBRATION ONLY)
No annunciator or decimal point.
99999 m V full scale (switch S2 in AUTO), resolution 1
¡A/
999990 m V full scale (switch S2 in .1), resolution 10 m V
SAFETY
Protection Class 1
Relates solely to insulation or grounding properties
defined in lEC 348.
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