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SS002V2
DL 420 Plus
17
Edition Loop Testing Kit
th
Instruction Manual & Specification
Issue
Sn
1

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Summary of Contents for Socket & See DL 420 Plus

  • Page 1 SS002V2 DL 420 Plus Edition Loop Testing Kit Instruction Manual & Specification Issue...
  • Page 2: Equipment Markings

    SS002V2 1. Safety 1.1 Equipment Markings Caution - refer to the instruction manual Construction is double insulated Product should be recycled as electronic waste Conforms to EU standards Measurement Category III is applicable to test and measuring circuits connected after the source of the building’s low-voltage MAINS installation.
  • Page 3 SS002V2 To maintain safety always check the tester on a known correctly wired live socket outlet before and after use. Or use a suitable checkbox such as the Socket and See CB400. Note. The DL420Plus uses an intelligent loop test system that suppresses sudden changes in value (such as voltage spikes).
  • Page 4 SS002V2 1. Loop test function selected 2. PFC - PSC (prospective fault current - prospective short circuit current selected) 3. Loop test mode selected - no trip (default setting) or Hi-I (high current) 4. HANDSFREE operation 5. Ohms symbol 6. Volts (AC) 7.
  • Page 5: Battery Installation

    SS002V2 3.1 Battery Installation Unit requires 4 x AA batteries. Ensure that all test leads are removed before installing batteries. Remove the battery cover on the reverse of the unit. Install the new batteries ensuring correct polarity as indicated. After installing batteries and before use switch on the unit and check for correct operation.
  • Page 6: Mains Voltage Test

    SS002V2 3.2.3 Mains Voltage Test The mains AC voltage will be displayed automatically on the main LCD screen. Check that the voltage is within the correct range 207 - 253 VAC. The indicated voltage can be toggled between L-N (default), L-E and N-E by using the voltage button.
  • Page 7: Handsfree Function

    SS002V2 As the true loop impedance test is a high current measurement it is more accurate than the No trip loop test. It is recommended when measuring (Ze) at the supply side of distribution boards and swithgear on non TT systems. A brief press of the test button will initiate the loop test, after a few seconds the result will be displayed.
  • Page 8 SS002V2 Condition Wiring Supply Terminal Buzzer Number Conditions Socket Wiring Correct None L-E reverse Warble L-N-E Warble miswire L-N reverse Warble L-N-E Warble miswire Faulty N/L-E Warble miswire Faulty N/E Warble miswire Faulty N Warble Faulty N/L-E Warble reverse Faulty E/L-N Warble reverse Faulty E...
  • Page 9: Maintenance And Service

    SS002V2 4. Maintenance and Service If required, clean with a damp cloth and mild detergent. Do not use abrasives or solvents. There are no user serviceable parts. Contact Socket and See for parts and technical assistance. Socket and See Century Road High Carr Business Park Newcastle Staffordshire, UK...
  • Page 10: Specification

    SS002V2 Specification Wiring Test Detects missing E or N (>15kΩ) Detects L-E or L-N swap Detects Network Supply Live - Earth/Neutral reversal by use of Polarity Test Pad. Phase - Neutral voltage measurement +1% + 1V AC Phase - Earth voltage measurement +1% + 1V AC Neutral - Earth voltage measurement +1% + 1V AC Loop Test (No trip mode, 3 wire testing, Phase - Neutral - Earth all connected)
  • Page 11 SS002V2 Specification Continued Overvoltage Category CAT III 300 V 440V AC No damage complete Over Voltage Protection recovery 0ºC to 40ºC Operating Temperature Operating Humidity 80% @ 31ºC to 50% @ 40ºC Safety Compliance BS EN 61010-2-030:2010 Probes GS38 Compliant Dimensions 157mm x 89mm x 39mm Weight...
  • Page 12 SS002V2 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 SOC/DL420Plus testing kit Socket and See PDL234Plus Part P...

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