Fluke 1560 Black Stack User Manual

11 2564 Thermistor Scanner Module
This section explains the features and operation of the optional 2564 Thermis
-
tor Scanner Module.
11.1 Description
The 2564 Thermistor Scanner Module is an add-on module that allows the
1560 to measure temperature with up to eight thermistors. It accepts nearly ev
-
ery type of thermistor sensor with either two, three, or four wires. It uses very
small excitation currents to minimize sensor self-heating. The excitation current
alternates polarity to minimize the effects of thermoelectric offsets. Up to eight
sensors can be connected to the 2564 simultaneously and measured alternately.
11.2 Specifications
Resistance range
0to1M
Ω
Resistance accuracy, one-year
1
0to2k Ω
2to100k Ω
100 k Ω to1M Ω
0.2 Ω
100 ppm of reading
300 ppm of reading
Resistance accuracy, short-term
1, 2
0to2k Ω
2to100k Ω
100 k Ω to1M Ω
0.15 Ω
75 ppm of reading
250 ppm of reading
Temparature accuracy, one-year (with 10k Ω , α =0.04 sensor;
not including sensor uncertainty)
1
0°C
25°C
50°C
75°C
100°C
±0.0025°C
±0.0025°C
±0.0025°C
±0.003°C
±0.006°C
Temperature coefficient 2.5 ppm/°C
Excitation current
2, 10
μ A; automatically selected: 1 Hz
Maximum lead resistance
100
Ω
Sample time 2 seconds
Number of channels 8
Recommended operating temperature range
1
18 to 28°C (64 to 82°F)
Absolute operating temperature range 5 to 35°C (40 to 95°F)
Weight 2.5 lbs. (1.1 kg.)
1
The accuracy specifications apply within the recommended operating temperature range. Accuracy limits
are increased by a factor of the temperature coefficient outside this range.
2
Short-term accuracy includes nonlinearity and noise uncertainties. It does not include drift or calibration
uncertainties.
139
11 2564 Thermistor Scanner Module
Description

Fluke 1560 Black Stack Specifications

General

Brand	Fluke
Model	1560 Black Stack
Category	Thermometer
Language	English