Gossen Metrawatt E-Clip 1, E-Clip 2 Operating Instructions

User manual

E-Clip 1 / E-Clip 2

Current Clamps

20 751 208

3-349-447-03

1/12.07

E-Clip 1 / E-Clip 2 Current Clamps

Table of contents

1. WARNINGS ..............................................................................................................2

2. DESCRIPTION OF CURRENT CLAMPS................................................................. 3

3. MAINTENANCE........................................................................................................3

3.1. INSPECTION .............................................................................................................3

3.2. CLEANING................................................................................................................4

3.3. SERVICE AND CALIBRATION .......................................................................................4

4. CURRENT CLAMP OPERATION ............................................................................ 4

4.1. SUBSTITUTE ELECTRIC MODEL FOR CURRENT CLAMPS.................................................4

4.2. TYPICAL APPLICATIONS ............................................................................................. 5

5. SPECIFICATIONS....................................................................................................6

5.1. GENERAL PURPOSE CURRENT CLAMP WITH CURRENT OUTPUT ..................................... 6

5.2. SENSITIVE CURRENT CLAMPS WITH CURRENT OUTPUT ................................................. 6

5.3. GENERAL (ALL TYPES) ..............................................................................................7

1. Warnings

To ensure a high level of operator's safety during using of current clamps the following warnings
have to be considered:

♦ Do not use the current clamp if any damage is noticed!
♦ Do not leave open nodes of the current clamp with current output (E-Clip 1, E-Clip 2)

during measurement to avoid damage and electric shock on secondary side, never
enclose conductor in the jaw unless the clamp is connected to measuring instrument!

♦ Only a competent, authorized person is allowed to carry out service intervention!
♦ Consider all generally known precautions in order to avoid risk of electric shock

while dealing with electric installations!

♦ Do not extend hands over safety barrier to prevent of electric shock! Only handles are

allowed to be touched during measurement!

♦

♦

♦ If the current clamp is used in a manner not specified in this User manual, the

Symbol on the current clamp indicates the possibility to use the current clamp on

non-insulated conductors.

Symbol on the current clamp indicates the possibility of a hazardous live

!

condition if the operator ignores the required safety measures.

provided protection can be impaired!

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E-Clip 1 / E-Clip 2 Current Clamps

2. Description of current clamps

The E-Clip 1and E-Clip 2 are 1000/1 ratio current clamps for measuring alternating currents in
the range from 1 mA to 1000 A (depending on the type).
They can be connected to any power analyzer, energy analyzer, harmonics analyzer,
multimeter, earth resistance meters, electrical installation testers and other measuring
instruments with compatible voltage or current inputs.
In chapter 4 some typical current clamp applications are described.
The current transducer is housed in a plastic case that maintains the protection class defined in
technical specifications. It consists of:

1. Handles,

2. Safety barrier,

3. Conductor opening,

4. Current transformer,

5. Connection with:
a) Safety banana sokets (E-Clip 2),
b) Cable connection (length = 1.5 m) with safety banana terminals

(E-Clip 1),

3. Maintenance

3.1. Inspection

To maintain operator safety and ensure reliability of the current clamp it is good practice to
inspect it on a regular basis. Check that the enclosure and optional connection are without
defects such as scratches or breaks.
Jaw surface must be clean. Pollution on jaw surfaces reduces the current clamp sensitivity.

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