User Manual

i800 English Instruction Sheet

Page 3

SIAC

™

(Security Internal Anti Short Circuit)

SIAC

(Security Internal Anti Short Circuit), patent applied for,

provides protection against short circuits between adjacent

primary conductors when clamped around conductors. This

mechanism ensures that the magnetic circuit separates at the

bottom of the jaw prior to the jaw opening at the top.

A detent action produced by SIAC™ can be felt when opening

the jaws. This detent action should always be present in use.

If the jaws open smoothly, service is indicated and the Clamp

should be inspected at the nearest Fluke Service Center. See

“Contacting Fluke”.

Operating Instructions

WX Warning

To avoid electric shock or personal injury when

using the Clamp:

• Ensure that your fingers are behind the tactile

barrier as shown in Figure 1.

• Do not use the Clamp if any part, including the

lead and connector(s), appears to be damaged

or if a malfunction of the instrument is

suspected.

• Clamp around the current carrying conductor

ensuring good contact between the jaw faces.

Center the cable between the Clamp jaws.

Note

The arrow on the labels shows the direction of the

current flow form the source to the lead. In order to have

a correct phase relationship between the primary

current and the clamp output, care must be taken

regarding the direction of current flow.

1. Connect the Clamp output connectors between the

common and the appropriate current input jack of a

suitable meter, then switch the meter on.

2. Select a 20 mA ac or greater current range.

3. Clamp the probe around the current-carrying conductor

to be measured (see Figure 1). Make sure the probe

jaws are tightly closed around the conductor.