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2.2
DC Voltage, DC Current, and Resistance
Sourcing
The 2560A is a DC calibrator that sources DC voltage, DC current, and resistance. It also sources
thermoelectromotive force and resistance that simulate those of a temperature sensor. This section
describes the DC voltage, DC current, and resistance sourcing features. For a description of the
thermoelectromotive-force and resistance sourcing features, see section 2.3.
DC Voltage Sourcing
The source range and output current for each voltage range are shown below. The 2560A outputs
the specified DC voltage, within the range limited by the maximum output current, to the load circuit
connected to the output terminals.
Low voltage-current output terminals (OUTPUT 1)
Range
100
mV
1
10
High voltage output terminals (OUTPUT 2 plug-in terminals)
Range
100
V
1000
V
1 If you set the main setting (MAX) to 120% of the range, the main setting (MIN) to 0% of the
range, the divider value n/m to 1, and the deviation to –2%, up to 122.4% of the range can be
generated.
2 Can be output when the source range is between 1% and 120% of the range.
3 In the 100 mV range, the output voltage may drop significantly when the output current exceeds
12 mA. Connect a load that will not cause the output current to exceed 12 mA.
The 2560A can also perform sink operation (see the next page). But it is not defined as part of the
instrument's specifications.
DC Current Sourcing
The source range and output voltage for each current range are shown below. The 2560A outputs
the specified DC current, within the range limited by the maximum output voltage, to the load circuit
connected to the output terminals.
Low voltage-current output terminals (OUTPUT 1)
Range
100
µA
1
mA
10
mA
100
mA
1
Large current output terminals (large binding posts of OUTPUT 2)
Range
10
30
1 If you set the main setting (MAX) to 120% of the range, the main setting (MIN) to 0% of the
range, the divider value n/m to 1, and the deviation to –2%, up to 122.4% of the range can be
generated.
2 Can be output when the source range is between 1% and 120% of the range.
2-2
1
Source Range
Maximum Output Current
±
122.400
mV
V
±
1.22400
V
V
±
12.2400
V
1
Source Range
Maximum Output Current
±
122.400
V
±
1224.00
V
1
Source Range
Maximum Output Voltage
±
122.400
µA
±
1.22400
mA
±
12.2400
mA
±
122.400
mA
A
±
1.22400
A
1
Source Range
Maximum Output Voltage
A
±
12.2400
A
A
0 to
+36.720
A
2
3
12
mA or higher
Approx.
120
mA
Approx.
120
mA
2
Approx.
30
mA
Approx.
10
mA
2
Approx.
30
V
Approx.
30
V
Approx.
30
V
Approx.
30
V
Approx.
10
V
2
Approx.
2
V
Approx.
1.5
V
IM 2560A-01EN
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