9.1.3 Extern
9.1.3.1 Standard type
The standard type has 4 pins. You can use pin 3 and 4 to connect an external Warning Light or
Beeper to indicate a Dangerous condition.
There is an internal Relay whose contact is connected to the plug “Extern”.
An external power source and a Warning Light or Beeper may be connected to pins 3 and 4 to
indicate a Dangerous condition. See: Example for connecting an external warning device below.
Use the working contact between Pin 3 and Pin 4, maximum Load 240VAC 2A.
The contact is open when the system is Safe.
The contact is closed when the system is Unsafe.
Pins 1 and 2 on the Extern connector: These pins are for Raytech Service use.
Do not connect anything to these pins!
Standard type with 4 pins:
Connector in the instrument
Lemo: ERA.1E.304.CLL
RAN: 40894
Extern
Lemo: FFA.1E.304.CLAC60
RAN: 40895
Instruction Manual Winding Resistance Meter
Type WR100 / WR50 / WR14
Page 104 of 139
