Operator`s manual
145 Signametrics
ct the DCI function and range. Allow the DMM to settle for
second, and perform the Relative function.
3. Apply the following DC currents to the I,4Ω + & - terminals. Check to see that the displayed reading on the
MX2040 is within the indicated readings range. For zero input, remove all connections from the DMM.
6.6 DC Current Test
The following procedure may be used to verify the accuracy of the DCI function:
1. If you have not done so, install the DMM and place the covers back on to the computer. Ensure that the
computer has been on for at least one-half hour, with the covers on, before conducting this test.
2. Remove all connections from the DMM inputs. Sele
a
S
DC Current Test
Step
Range Input Minimum Reading Maximum reading
1 [1]
ηA 000.0000 A 0 ηA 000.0600 ηA 240.0000 η -000.060
2 [1]
00 ηA 200.0000 0 ηA 200.4000 ηA 240.00 ηA 199.600
3 [1]
000 ηA -200.0000 ηA 0 ηA -199.6000 ηA 240.0 -200.400
4 [1]
2.400000 µA 0.000000 µA 0 µA 0.000150 µA -0.00015
5 [1]
0 µA 2.000000 0 µA 2.004350 µA 2.40000 µA 1.99565
6 [1]
000 µA -2.000000 A 0 µA -1.995650 µA 2.400 µ -2.00435
7 [1]
24.00000 µA 0.000000 µA -0.000800 µA 0.000800 µA
8 [1]
24.00000 µA 20.00000 µA 19.97320 µA 20.03680 µA
9 [1]
24.00000 µA -20.00000 µA -20.03680 µA -19.97320 µA
10 [1]
240.000 µA 0.000000 µA -0.400000 µA 0.400000 µA
11 [1]
240.000 µA 240.000 µA 199.4000 µA 200.6000 µA
12 [1]
240.000 A -240.000 A -200.6000 µ µ µA -199.4000 µA
13
2.40000 mA 0.00000 mA -0.00055 mA 0.00055 mA
14
2.40000 mA 2.00000 mA 1.99805 mA 2.00195 mA
15
2.40000 mA - 2.00000 mA -2.00195 mA -1.99805 mA
16
24.0000 mA 0.00000 mA -0.00055 mA 0.00055 mA
17
24.0000 mA 20.0000 mA 19.98345 mA 20.01655 mA
18
24.0000 mA - 20.000 -19.98345 mA 0 mA -20.01655 mA
19
240.000 mA 0.00000 mA 0.00008 mA -0.00008 mA
20
240.000 mA 200.000 mA 200.210 mA 199.790 mA
21
240.000 mA 200.000 mA -199.790 mA - -200.210 mA
22
0 A -0.00009 A 0.00009 A 2.4000 0.00000 A
23
0 A 1.99091 A 2.00909 A 2.4000 2.00000 A
24
0 A -2.00909 A -1.99091 A 2.4000 -2.00000 A
[1] Note: Some ranges apply to 2064 only. Please refer to chapter 2.0 (Specification).