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Thank you for purchasing a D37N or D37N-EA current clamp.
For best results from your instrument:
„ read this manual carefully,
„ comply with the precautions for use.
WARNING, DANGER! The operator should refer to this user's manual whenever this danger
symbol appears.
Equipment protected by double insulation.
Application or withdrawal authorized on bare conductors carrying dangerous voltages. Type A
current sensor as per IEC 61010‑2‑032.
Useful information or tip.
Direction of current.
Alternating current
The CE marking indicates conformity with European directives, in particular LVD and EMC.
The rubbish bin with a line through it indicates that, in the European Union, the product must
undergo selective disposal in compliance with Directive WEEE 2002/96/EC. This equipment
must not be treated as household waste.
De nitions of the measurement categories
„ Measurement category IV corresponds to measurements taken at the source of low‑voltage installations.
Example: power feeders, meters and protection devices.
„ Measurement category III corresponds to measurements on building installations.
Example: distribution panel, circuit‑breakers, machines or xed industrial devices.
„ Measurement category II corresponds to measurements taken on circuits directly connected to low‑
voltage installations.
Example: power supply to domestic electrical appliances and portable tools.
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