Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3
Page 12 of 13
9.
CBX 1 Second RC Time Constant - Delay Test.
9.1.
Line to Ground: Voltage Accuracy.
9.1.1.
Edit the test parameters for a Delay test:
•
Trigger on POS
•
Delay Test
•
Delay setting: 1 second
•
Line to Ground measurement
9.1.2.
Connect L-G to 1s time constant terminals “A” and “B” of CAL-BOX and an oscilloscope using a
10X or 100X probe.
9.1.3.
Perform a test and confirm the oscilloscope voltage waveform after 1s of Main relay disconnection
measurement corresponds to the CDT-240 (within ±2% of reading ±0.8V).
9.1.4.
Record on section 7 of CAL-Log-001-CDT 240.
9.1.4.1.
Expected value: Voltage level at 1s.
Note:
Compensate for oscilloscope offset.
9.1.4.2.
Tolerance voltage: Waveform value voltage ±2% of reading ±0.8V.
9.1.4.3.
As left voltage: This is the value of the voltage result on the CDT-240.
9.2.
Line to Neutral: Voltage Accuracy.
9.2.1.
Edit the test parameters for a Delay test:
•
Trigger on POS
•
Delay Test
•
Delay setting: 1 second
•
Line to Neutral measurement
9.2.2.
Connect L-N to 1s time constant terminals “A” and “B” of CAL-BOX and an oscilloscope using a
10X or 100X probe.
9.2.3.
Perform a test and confirm the oscilloscope voltage waveform after 1 second of Main relay
disconnection measurement corresponds to the CDT-240 (within ±2% of reading ±0.8V).
9.2.4.
Record on section 7 of CAL-Log-001-CDT 240.
9.2.4.1.
Expected value: Voltage level at 1 second.
Note:
Compensate for oscilloscope offset.
9.2.4.2.
Tolerance voltage: Waveform value voltage ±2% of reading ±0.8V.
9.2.4.3.
As left voltage: This is the value of the voltage result on the CDT-240.
9.3.
Neutral to Ground: Time and Voltage Accuracy.
9.3.1.
Edit the test parameters for a Delay test:
•
Trigger on NEG
•
Delay Test
•
Delay setting: 1 second
•
Neutral to Ground measurement
9.3.2.
Reverse the polarity of the EUT voltage by unplugging the EUT power cord, swap the Line and
Neutral spade lugs on the power connector, and reconnect EUT power, as it shows it in
