Compliance West CDT-240 Use and care manual

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 1 of 13
SIGN OFF
DATE
ORIGINATOR:
QUALITY ASSURANCE:
DOCUMENT EFFECTIVE DATE:
1.0 TITLE
Calibration procedure for CDT-240.
2.0 PURPOSE
To describe the CDT-240 calibration procedure.
3.0 DEFINITIONS
DMM - Digital Multimeter
CAL-BOX - Calibration Box (00-CDT-CBX)
4.0 PRECAUTIONS
4.1 The CDT-240 tester is capable of generating high voltage. Be very careful to follow all
directions in the procedure.
5.0 MATERIALS/EQUIPMENT NEEDED
5.1 Calibrated DMM (Qty 2) DMM1 for voltage RMS below 50V and the DMM2 for
voltages RMS 50V or greater.
5.2 Calibrated Oscilloscope ( with 10x or 100x probe )
5.3 DC power supply 60V
5.4 BNC cable, 1:1 ratio
5.5 Screwdrivers
6.0 PROCEDURE
6.1 Once a technician has been trained on this procedure by an appropriate person, follow the
directions listed in Appendix 1.
6.2 An appropriate person shall be any technician that has performed the calibration of a
CDT-240 tester and can explain the procedure and safety concerns.
7.0 APPENDICES
7.1 Appendix 1 CDT-240 Factory Calibration Procedure.
8.0 RELATED ITEMS
8.1 CAL-Log-001-CDT 240
8.2 CBX1V Video

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 2 of 13
Appendix 1
CDT-240 Factory Calibration Procedure.
1. Software version verification.
1.1. When you turn on your CDT the version software appears at the booting screen, please verify with
Compliance West the latest version and update it, if applies.
2. Power Supply Voltage.
2.1. Before starting, pull the traveler for the product being calibrated and have a copy ready of CAL-Log-
001-CDT 240, use the specifications given here in the current document instead of mentioned CAL-
Log.
2.2. Plug in the CDT-240 power cord, plug in the EUT power cord to the proper value (90 –260V
50/60Hz), disconnect all the test leads attached to G, L or N outputs, disconnect any power cord
attached to the front panel socket. Turn the unit ON, then perform a relay calibration pressing TEST
once is prompt it on the display. Note that the EUT power source could be grounded or floated.
2.3. Adjust the 5VDC output of the power supply to 5.1VDC (-0/+0.04V) by turning VR1 (orange
potentiometer) on the power supply while measuring the output voltage of the supply TP5 (+5V) to
TP6 (AGND) on the main board, in order to locate VR1 please refer to Figure 1.
Figure 1. VR1 location (Red circle).

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 3 of 13
3. Zero Volt Adjustment (P3).
3.1. Connect the Oscilloscope to the BNC 100:1 output of the CDT-240.
3.2. Set the CDT for the following test:
•Trigger on POS
•Delay Test
•Delay: 3.0 s
•Line to Gnd measurement
3.3. Perform a test if necessary so that the CDT is not armed. The oscilloscope should measure 0V on the
BNC connector we expect to get same as Figure 2, adjust P3 in order to set this value.
Figure 2. Zero output on BNC connector with CDT-240 not armed.
3.4. Disconnect the oscilloscope and connect DMM1 to the BNC connector, as it shows it in Figure 3.
Figure 3. BNC –Center (+) , Outside (-).
3.5. Adjust P3 so that the output is 0.000VDC +/- 2mVDC on DMM1, in order to get an accurate
measurement.
3.6. Record the result on section 1 of CAL-Log-001-CDT 240.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 4 of 13
4. Time Constant Adjustment (P4).
4.1. Connect the L and G front panel test jacks across the RC time constant CAL-BOX, 0.1s terminals “C”
and “D” as shown in Figure 4.
Figure 4. CDT-240 with CAL-BOX attached.
4.2. Set the CDT for the following test (same as previous test):
•Trigger on POS
•Delay Test
•Delay: 3.0 s
•Line to Gnd measurement
4.3. Press TEST once to ARM, and again to perform the test. The test result should be 0.0V (because the
voltage decayed to zero in 3s). Adjust P4 as needed so that the measured voltage is 0.0V (turning the
potentiometer clockwise makes the reading lower, i.e. more negative. Repeat the test multiple times to
verify. The reading may fluctuate +/- 0.8V.
4.4. Edit the test parameters for a negative polarity test:
•Trigger on NEG
•Delay Test
•Delay: 3.0 s
•Line to Gnd measurement
4.5. Verify that the voltage measurement is 0V +/- 0.8V. Adjust P4 as needed.
4.6. Repeat steps 4.2 –4.5 as needed so that the test result is always as close to 0.0V as possible.
4.7. Record both positive (as 4.3) and negative (as 4.5) results on section 3 of CAL-Log-001-CDT 240.
4.8. Disconnect the CAL-BOX.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 5 of 13
5. Internal Voltage Measurement Accuracy (P5 & P2).
5.1. Line to Ground (P5)
5.1.1. Connect the Oscilloscope to the BNC 100:1 output of the CDT-240.
5.1.2. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0 V
•Line to Gnd measurement
5.1.3. Press the test button once to ARM the CDT. You should see a sine wave signal on the oscilloscope
as it shows it in Figure 5.
Figure 5. Sine Wave Output on CDT-240 BNC.
5.1.4. Unplug the EUT power cord and connect a 60VDC power supply to “L” and “G”, confirm the
voltage with DMM2.
5.1.5. Using DMM1, adjust P5 so that the voltage at TP8 to AGND “TP6”is -1/39 of the Power supply
voltage (-1.5385 VDC if the voltage is 60VDC for example). You can see both TP8 & TP6 test
points on Figure 6.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 6 of 13
Figure 6. Internal Voltage Measurement Test Points TP6, TP7 y TP8.
5.1.6. Record the result on section 4 (L-G) of CAL-Log-001-CDT 240.
5.1.6.1.EUT Test Voltage: DMM2 Line to Ground voltage readout.
5.1.6.2.Expected Value:
__
_39
EUT Test Voltage
Expected value =−
5.1.6.3.Tolerance: Expected Value +/-1 % of reading.
5.2. Neutral to Ground (P2)
5.2.1. Connect the 60VDC power supply to “N” and “G”, confirm the voltage with DMM2.
5.2.2. Using DMM1, Adjust P2 so that the voltage at TP7 to AGND “TP6”is -1/39 of the Power supply
voltage (-1.5385VDC if the voltage is 60VDC for example). You can see both TP7 & TP6 test points
on Figure 6.
5.2.3. Record the Neutral to Ground voltage on section 3 (N-G) of CAL-Log-001-CDT 240.
5.2.3.1.EUT Test Voltage: DMM2 Neutral to Ground voltage readout.
5.2.3.2.Expected Value:
__
_39
EUT Test Voltage
Expected value =−
5.2.3.3.Tolerance: Expected Value +/-1 % of reading.
5.3. Line to Neutral (no adjustment - verification only)
5.3.1. Disconnect the DC power supply and plug back the EUT power cord.
5.3.2. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0 V
•Line to Neutral measurement
5.3.3. Press the test button once to ARM the CDT. You should see clean AC on the oscilloscope as it
shows it in Figure 5.
5.3.4. Circle Pass on 3 of CAL-Log-001-CDT 240 if verification was successful.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 7 of 13
6. BNC 100:1 Calibration (P1)
6.1. Line to Ground Calibration.
6.1.1. Disconnect the scope and connect DMM1 Volts AC to the BNC 100:1 connector and DMM2
Volts AC to “L” and “G”.
6.1.2. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0V
•Line to Ground measurement
6.1.3. Press TEST once to ARM the CDT.
6.1.4. Adjust P1 so that the voltage on the BNC connector is 1/100 of the EUT test voltage +/- 1% (input
voltage), 1.20V~ if the EUT voltage is 120V~ for example. To read both meters simultaneously
press the “HOLD” button on both meters at the same time (if available).
6.1.5. Record both input voltage and L-G BNC voltage on section 4 of CAL-Log-001-CDT 240.
6.1.5.1.EUT Test Voltage: EUT input voltage at moment you are performing the test.
6.1.5.2.Expected Value:
__
_100
EUT Test Voltage
Expected value =
6.1.5.3.Tolerance: Expected Value +/-1 % of reading.
6.2. Neutral to Ground - No adjustment, verification only.
6.2.1. 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 Figure 7.
Figure 7. Normal connection (Left), Reverse connection (Right).
L
L
N
N

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 8 of 13
6.2.2. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0V
•Neutral to Ground measurement
6.2.3. Press TEST once to ARM the CDT.
6.2.4. Record both input voltage and N-G BNC voltage on section 4 of CAL-Log-001-CDT 240.
6.2.4.1.EUT Test Voltage: DMM2 Neutral to Ground voltage readout.
6.2.4.2.Expected Value:
__
_100
EUT Test Voltage
Expected value =
6.2.4.3.Tolerance: Expected Value +/-1 % of reading.
6.3. Line to Neutral - No adjustment, verification only.
6.3.1. If the EUT connection is reverse, connect as normal Figure 7.
6.3.2. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0 V
•Line to Neutral measurement
6.3.3. Press TEST once to ARM the CDT.
6.3.4. Record both input voltage and L-N BNC voltage on section 4 of CAL-Log-001-CDT 240.
6.3.4.1.EUT Test Voltage: DMM2 Line to Neutral voltage readout.
6.3.4.2.Expected Value:
__
_100
EUT Test Voltage
Expected value =
6.3.4.3.Tolerance: Expected Value +/-1 % of reading.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 9 of 13
7. Main Relay (off-board): Disconnect at Peak
7.1. All measurements within +5% of maximum (peak) voltage
+5% = + 18.2° from peak (cos-1(.95))
equates to + 0.84 ms for 60 Hz, + 1.01 ms for 50 Hz
7.2. All measurements are positive peak disconnect (POS) unless otherwise specified. An example of a
very accurate disconnect is shown below in Figure 8.
Figure 8. Example of Sine Wave disconnected on peak.
7.3. To be within 5% of the peak, the disconnect needs to occur in the time between the two vertical red
lines shown below in Figure 9 .
Figure 9. Range accepted for disconnect.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 10 of 13
7.4. Accuracy at 120V, 60 Hz input, POS peak.
7.4.1. Connect an oscilloscope to the 100:1 BNC connector on the front panel of the CDT.
7.4.2. Connect the L and G front panel test jacks across the RC time constant CAL-BOX, 1s terminals
“A’ and “B”.
7.4.3. Set the CDT for the following test:
•Trigger on POS
•Voltage Test
•Voltage setting: 50.0 V
•Line to Gnd measurement
7.4.4. Perform three tests and confirm that it disconnects within -5% /+0% of the peak voltage as
specified in section 7.1.
7.4.5. Circle PASS on section 5 of CAL-Log-001-CDT 240 if the verification was successful.
7.4.5.1.Expected Value: Value of previous Positive Sine Wave Peak.
7.4.5.2.Tolerance: Expected Value -5%/+0% of reading.
7.5. Accuracy at 120V, 60Hz input, NEG peak.
7.5.1. Connect a scope to the BNC connector on the front panel of the CDT.
7.5.2. Connect the L and G front panel test jacks across the RC time constant CAL-BOX, 1s terminals
“A’ and “B”.
7.5.3. Set the CDT for the following test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0 V
•Line to Gnd measurement
7.5.4. Perform three tests and confirm that it disconnects within -5%/+0% of peak voltage as specified in
section 7.1.
7.5.5. Circle PASS on section 5 of CAL-Log-001-CDT 240 if the verification was successful.
7.5.5.1.Expected Value: Value of previous positive Sine Wave Peak, as it shown it in Figure 8.
7.5.5.2.Tolerance: Expected Value -5% /+0% of reading.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 11 of 13
8. CBX 1 Second RC Time Constant - Voltage Test.
8.1. Line to Ground: Time Accuracy.
8.1.1. Edit the test parameters for a Voltage test:
•Trigger on POS
•Voltage Test
•Voltage setting: 50.0 V
•Line to Ground measurement
8.1.2. Connect L-G to 1s time constant terminals “A” and “B” of CAL-BOX and also connect an
oscilloscope using a 10X or 100X probe.
8.1.3. Perform a test and disconnect one end of the CAL-BOX after 0.7 –0.9 seconds, see video
CBX1V, confirm the oscilloscope time measurement correspond to the CDT-240 (within +/-
0.01s).
8.1.4. Record on section 6 of CAL-Log-001-CDT 240.
8.1.4.1.Waveform value time: Oscilloscope time measurement from Main relay disconnection
until CBX is unplugged “fast decay”.
8.1.4.2.Tolerance time: Waveform value time +/- 0.01s.
8.1.4.3.As left time: This is the value of the test time result on the CDT-240.
8.2. Neutral to Ground: Voltage Accuracy.
8.2.1. Edit the test parameters for a Voltage test:
•Trigger on NEG
•Voltage Test
•Voltage setting: 50.0 V
•Neutral to Ground measurement
8.2.2. 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 Figure 7.
8.2.3. Connect N-G to 1s time constant terminals “A” and “B” of CAL-BOX and also connect an
oscilloscope using a 10X or 100X probe.
8.2.4. Perform a test without disconnecting the CAL-BOX, confirm the voltage on the waveform
corresponds to CDT-240 Voltage within ±2% of reading ±0.8V.
8.2.5. Record on section 6 of CAL-Log-001-CDT 240.
8.2.5.1.Waveform value voltage: Voltage level at CDT-240 time result. Note: Compensate for
oscilloscope offset.
8.2.5.2.Tolerance voltage: Waveform value voltage ±2% of reading ±0.8V.
8.2.5.3.As left voltage: This is the value of the voltage result on the CDT-240 (50V +0V -0.8V).
8.2.6. Return back the polarity of the EUT to normal connection.

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 Figure
7.

Compliance Products USA, Inc
CAL-Fac-001-MP-CDT 240 Rev 2.3 Page 13 of 13
9.3.3. Connect N-G to 1s time constant terminals “A” and “B” of CAL-BOX and the 100:1 BNC output
to the oscilloscope.
9.3.4. Perform a test and confirm the oscilloscope time measurement corresponds to the CDT-240
(within +/- 0.01s).
9.3.5. Remove the BNC cable and connect to N-G an oscilloscope using a 10X or 100X probe.
9.3.6. 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).
9.3.7. Record on section 7 of CAL-Log-001-CDT 240.
9.3.7.1.As left time: Oscilloscope time measurement from BNC start of square pulse until
voltage decay signal appears.
9.3.7.2.Expected value: Voltage level at 1 second. Note: Compensate for oscilloscope offset.
9.3.7.3.Tolerance voltage: Waveform value voltage ±2% of reading ±0.8V.
9.3.7.4.As left voltage: This is the value of the voltage result on the CDT-240.
9.3.8. Return the polarity of the EUT to normal connection.