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Summary of Contents for Socket & See CB400
- Page 1 CB400 Professional Non-Trip Checkbox Instruction Manual & Specification SS001V2...
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Page 2: Equipment Markings
The Socket and See CB400 is designed to be used by skilled persons in accordance with safe methods of work. If the CB400 is used in a manner not specified by Socket and See, the protection provided by it may be impaired. - Page 3 For checking insulation or continuity functions you can use your own instrument’s test leads to connect your instrument to the corresponding 4mm input terminals on the face of the CB400 if they terminate in a 4mm plug. Alternatively you can use the supplied pair of red and black leads.
- Page 4 3.1 Recording reference values for ongoing accuracy records When using the CB400 to check an instrument for the first time it should be in current calibration. When the first set of tests for any instrument are undertaken.
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Page 5: Continuity Check
The CB400 includes a ‘lead null’ position for the continuity test range. This can be used either to null the leads if the test instrument being checked includes a lead null function or to measure the lead resistance for instruments without this function. - Page 6 ● The same procedure should be followed using the other five check points on the CB400. ● The recorded values are are compared with the reference values to assess the performance of the instrument over time.
- Page 7 ● The measured value obtained is recorded on the test instrument record sheet. ● The same procedure is followed for each of the check points on the CB400 insulation range. ● These same tests may then be repeated for each test voltage if required.
- Page 8 As the CB400 will be used to check the accuracy of the instrument it is strongly advised that: ● Both of the plugs (13A and IEC) used to connect the CB400 to the mains supply and both ends of the test lead used to connect the instrument to the CB400 socket are each inserted and removed several times before undertaking the accuracy check.
- Page 9 SS001V2 ● The test instrument is then switched off or on to disconnected from the CB400 for a period of 5 seconds. If the tester has an on/off switch it should be used in preference to disconnection. ● Use the cursor to select +1Ω position.
- Page 10 Note: The CB400 function for the 1 x I∆n and the 5 x I∆n test has a set operation time of 38mS. So the instrument being checked should display a value. Subject to the instrument manufacturer’s tolerance of 37 - 39mS.
- Page 11 SS001V2 The illumination of the test current LED on the CB400 indicates that the test has been carried out and the instrument output current is acceptable. If the output current from the tester is outside the acceptable range then the tester may still operate the RCD trip but the LED will not light.
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Page 12: Maintenance And Service
RCD test instrument. This is possible because the test of the RCD instrument is carried out within the CB400 unit and is independent of any external influence. The test should be carried out at regular intervals and the results recorded on the ongoing accuracy record sheet for the instrument. -
Page 13: Specification
SS001V2 Specification Function Check Values Accuracy Rating 0.25 MΩ Up to 1000V 0.5 MΩ Up to 1000V 1.0 MΩ Up to 1000V Insulation Test 2.0 MΩ Up to 1000V 10 MΩ Up to 1000V 200 MΩ Up to 1000V 250V @ 0.25 MΩ Output Voltage 3 500V @ 0.5 MΩ... -
Page 14: Ordering Information
Ordering Information Edition Equipment Item Supplier Code Socket and See PDIT360 Part P SOC/PDIT360 insulation tester Socket and See CB400 Professional SOC/CB400 non trip check box Socket and See PDL310 4 in 1 Loop SOC/PDL310 tester Socket and See DL420Plus Loop...
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