Fluke 8845A, User Manual

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8845A/8846A
Users Manual
1-22
Diode Test
Test Current ............................................................ 100
μ
A or 1 mA
Response Time....................................................... 300 samples/sec with audible tone.
Accuracy is given as
±
(% measur % of range)
Range
24 Hour
(23
±
1
°
C)
90 Days
(23
±
5
°
C)
1 Year
(23
±
5
°
C)
Temperature
Coefficient/
°
C
Outside 18 to 28
°
C
5.0000 V 0.002 + 0.002 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002
10.0000 V 0.002 + 0.001 0.008 + 0.002 0.01 + 0.002 0.001 + 0.002
Measurement Rates (IEEE488[4])
Measurements/Second
[1]
Function Digits Setting
Integration Time
60 Hz (50 Hz)
8845A 8846A
6½ 100 NPLC 1.67 (2) s 0.6 (0.5) 0.6 (0.5)
6½ 10 NPLC 167 (200) ms 6 (5) 6 (5)
5½ 1 NPLC 16.7 (20) ms 60 (50) 60 (50)
5½ 0.2 NPLC 3.3 ms 270 270
DC Volts, DC Current, and
Resistance
4½ 0.02 NPLC 500 us 995 995
6½ 3 Hz 0.47 0.47
6½ 20 Hz 1.64 1.64
AC Voltage and AC Current
[2]
6½ 200 Hz
[3]
4.5 4.5
6½ 1 s 1 1
5½ 100 ms 9.8 9.8
Frequency and Period
4½ 10 ms 80 80
Capacitance 6½ NA 2
[1] Typical measurement rates with auto-zero off, delay = 0, display off, auto range off and math off.
[2] Maximum measurement rates for 0.01 % of ac step. When dc input varies, additional settling delay is required.
[3] For remote operation or external trigger using default settling delay
[4] Speeds available in OutG SW 1.0.700.18 or higher. Note that the measurements rates for RS232 can vary depending on the
baud rate chosen. If the baud rate selected is 115,200, the maximum measurement rate is 711 measurement/s. The LAN bus
has a maximum measurement rate of 963 measurement/s.