Adjustment Procedure
ZS1000-OM-E Rev C
8–3
4. Apply power to the oscilloscope and test equipment.
5. Allow at least 30 minutes warm-up time for the ZS1000 and test
equipment before starting the calibration procedure.
PROCEDURE
A. Adjust Output Zero
1. Connect one end of a BNC cable to the probe end of the ProBus
extension cable. Connect the Precision 50
Ω
Terminator to the other
end of the BNC cable.
2. Connect the banana plugs of the precision 50
Ω
terminator to the
input of the DMM. Make sure the plug corresponding to the BNC
shield (marked ’Ground’) is connected to the
LO
or
COMMON
input
of the DMM. Refer to Figure 8-1 for setup information.
Figure 8-1. Output Zero Voltage Adjustment Setup
3. Select the channel to which the probe and ProBus extender is con-
nected. Set
OFFSET
on the oscilloscope to zero as indicated on the
on-screen display.
4. Set the DMM to read DC Volt on the most sensitive range.
5. Verify that the probe inputs are not connected to any signal.
6. Adjust
OUTPUT ZERO
on the board until the DMM reads
0 V ±100
µ
V. Refer to Figure 8-2 for adjustment location.
Summary of Contents for ZS1000
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