Equipment information
Fluke 845AB Level Meter
Manufacturer:
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Model:
845AB
Date:
1967
Category:
Group:
Description:
High Impedence Voltmeter Null Detector
Information
The Fluke Model 845 High Impedance Voltmeter-Null Detector
allows measurement of dc voltages from one microvolt to 1000
volts dc inl9 ranges. When used as a null detector on the
100 millivolt range and below, the input impedance is 10
megohms- A linear recorder output allows the instrument to
be used for production testing and also as a dc Amplifier
with a maximum gain of 120 db.
1-3. The instrument consists of the line powered Model 845A,
and the line-battery-powered Model 845AB. The instruments
are half-rack in size, and are equipped with resilient feet
and a tilt-up bail for field or bench use. A single
instrument may be mounted in a standard 19 inch rack by
means of metal handle rack adapter kit 881A-102. Two
instruments may be mounted side-by-side in a standard 19
inch rack by means of metal handle rack adapter kit 881A-1Q3.
1-4. ELECTRICAL SPECIFICATIONS
INPUT VOLTAGE RANGE
1 microvolt to 1000 volt dc end scale in nineteen ranges,
using XI and X3 progression.
INPUT RESISTANCE
100 megohms on 300 millivolt range and above.
10 megohms on 100 millivolt range and below.
ACCURACY
±(2% end scale •+ 0.1 microvolt),
MAXIMUM METER NOISE (Input Shorted)
RANGE NOISE (peak-to-peak)
1 microvolt 0. 20 microvolt
3 microvolt 0. 25 microvolt
10 microvolt - 1000 volt 0. 30 microvolt
METER RESPONSE TIME (to 90% of reading)
RANGE TIME
1 microvolt 5 seconds
3 microvolt 3 seconds
10 microvolt - 1000 volt 1-1/2 seconds
Manual Type:
User Manual
Pages:
14
Size:
1.65 Mbytes (1732151 Bytes)
Language:
english
Revision:
Manual-ID:
P/N 294173
Date:
1981 06 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 08 10
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