Agilent Technologies Multiple Channel Controller 85330A - Manual (Page 39)

85330A Multiple Channel Controller 2-9
Performance Verification
Verifying the Multiple Channel Controller
Counter Pulse Delay
Test The following test determines if the on-board counter is operating correctly.
1. Connect BNC cables between the SRC1 TRIG, RCVR READY
connectors and the oscilloscope as shown in Figure 2-3 on page 2-10 .
2. On the oscilloscope press:
[RECALL] [1]
[TRIG] {Source 2} {Adjust: 1.5v} { } (+ E dge}
[TIMEBASE] {1 us/Div} {Delay: 4 us} {Ref: Centr}
[SAVE] [2]
3. Press the following on the multiple channel controller:
[Clear Instr] [Select Instr] {85330A} {RESET} [More] {TEST} {COUNTER}
4. Press the following on the multiple channel controller:
[4] [Return]
5. The negative edge of the displayed pulse should be 4
±
1 microseconds.
To use the scope measurement feature, press: [
∆
t
∆
v] {
∆
t Marker: ON}.
Rotate the front panel knob until the vertical marker line intersects the
negative edge of the pulse. Note that the Start Marker reading will be the
pulse delay. See
Figure 2-4 on page 2-10 for more information.
6. On the oscilloscope press:
[TIME BASE] {1 us/Div} {Delay: 1000 us} [CLEAR DISPLAY]
7. Press the following on the multiple channel controller:
[1] [0] [0] [0] [Return]
8. The negative edge of the displayed pulse should be 1,000
±
1 microseconds.
To use the scope measurement feature, press: [
∆
t
∆
v] {
∆
t Marker: ON}.
Rotate the front panel knob until the vertical marker line intersects the
negative edge of the pulse. Note that the Start Marker reading will be the
pulse delay. See
Figure 2-4 for more information.
9. On the oscilloscope press:
[TIME BASE] {2 us/Div} {Delay: 15 ms} [CLEAR DISPLAY]
10. Press the following on the multiple channel controller:
[1] [5] [0] [0] [0] [Return]
11. The negative edge of the displayed pulse should be 15
± 0.
001
milliseconds.
To use the scope measurement feature, press: [
∆
t
∆
v] {
∆
t Marker: ON}.
Rotate the front panel knob until the vertical marker line intersects the