1. Negative thermocouple contact

Type “S” & “R” copper alloy 11 3.15mm diam

1. Positive thermocouple contact

Type “S” & “R” pure copper 9.65mm diam.

1. External body

Higher part (O2 neg. contact) steel

1. Insulation part

PTFE material

1. External body

Lower part steel

1. Lock hole 3 mm diam.
2. Wires cable connection

Red color = - thermocouple signal
Black color = + thermocouple signal
White color = O2 - signal
Yellow color = O2 + signal

The cotact block is internally filled with an insulating resin

1.Negative thermocouple contact
Type “S” & “R” copper alloy 11 3.15mm diam

1. Positive thermocouple contact

Type “S” & “R” pure copper 9.65mm diam.

1. External body

Steel or Copper

1. Lock hole 3 mm diam

1. Connection of the insulating cables

Red color = - thermocouple signal
Black color = + thermocouple signal

The cotact block is internally filled with an insulating resin