Tel: 886. 909 602 109 Email: [email protected]
www.salukitec.com
96
Voltage Range
≥ 20 V, 4 1/2 digits
Accuracy
≤ 0.005 %
Recommended
KEITHLEY 2100
3. DC Voltage Source
Voltage Range
≥ 10 V
Accuracy
< 10mVpp
Recommended
RIGOL DP831A
4. Feedthrough Terminations
Impedance
50
Ω
Front Panel Display
Test
First, turn on the power switch on the rear panel to start the device. Second,
check whether the display is lighted or not. Third, check whether there are bad
pixels on the display. End the display test.
Keypad Test
After the device is started, press any button and you will hear “Di” sound once.
Then, try to press every button to check whether the display change to the
corresponding setting. Finally, press <Sensitivity> and spin the knob to check
whether the knob is OK.
6.1 Self-Test
The self-test checks the lock-in hardware. This test should be done before any other performance tests.
Device
No external device is required in this test.
Steps
1. Open the power switch on the rear panel to start the lock-in amplifier.
2. Observe the device, and check whether the screen, keyboard and cooling fan is OK.
3. Record the test results in the Performance Test Record.
6.2 DC Offset
This test measures the DC offset of the input.
Device
Connect a 50Ω BNC cable to the A/I input. This shorts the input so the lock-in’s own DC offset will be measured.
Steps
1. Turn the lock-in off and on to restart it.
