DC Current
Verification
This test checks the dc current output performance of the module.
1.
For each channel in the module, connect the DMM as shown in
Figure 4-4. Channel 1 connections are shown in the figure. Connect
the other channels in a similar manner. Set the DMM to measure dc
current.
2.
Set the channel to output each of the following currents:
+0.020
–0.005
+0.015
–0.010
+0.010
–0.015
+0.005
–0.020
0.000
Use the
APPLy
n:CURRent x.xxx
command, where
n
is the
channel number and
x.xxx
is the current to output.
3.
For each current, measure the output current with the DMM, enter it
in the table beginning on page 46, and compare the current output to
the limits shown in the table.
4.
Open the channel output relay by sending the
OUTPut
n OFF
command, where
n
is the channel number.
5.
Change the connections to the next channel and repeat steps 2, 3,
and 4.
6.
Repeat steps 2, 3, 4, and 5 for each channel.
Figure 4-4. DC Current Output Connections (Channel 1)
Chapter 4
Verification Tests 37]
Summary of Contents for E1418A
Page 4: ...Notes 4 HP E1418A 8 16 Channel D A Converter Service Manual Contents ...
Page 8: ...Notes 8 HP E1418A D A Converter Module Service Manual ...
Page 58: ...Notes 58 Verification Tests Chapter 4 ...
Page 66: ...Figure 5 5 Internal Resistor Adjustment Connections 66 Adjustments Chapter 5 ...
Page 81: ...Figure 6 1 8 Channel Disassembly Chapter 6 Service 81 ...
Page 82: ...Figure 6 2 16 Channel Disassembly 82 Service Chapter 6 ...
Page 84: ...Notes 84 Service Chapter 6 ...
Page 90: ...Figure 7 1 HP E1418A Replaceable Parts 90 Replaceable Parts Chapter 7 ...
Page 91: ...Figure 7 2 Common Terminal Module Replaceable Parts Chapter 7 Replaceable Parts 91 ...