| Heating |
The heating element is wound around the stainless
steel pressure braiding; the heating element is then
covered with a glass fibre-insulating layer. A
nickel-plated copper braiding is wound over the
insulation; this also acts as a safety earth. |
| Thermocouple |
The thermocouple sensor is placed in contact with
the stainless steel pressure braiding below the
heating element. The standard temperature sensor
fitted is Fe-CuNi, "J" type. Other types of sensor can
be fitted on request, e.g. NiCr-Ni or PT100. |
| Insulation |
Several layers of glass fibre insulation cover the
heating element and thermocouple. This in turn is
covered with a silicone foam layer, which offers a
high degree of thermal insulation and a 'warm to
touch' property, reducing hand and arm skin burns. |
| External layer |
An external polyamide braiding protection helps to
protect the insulation from scuffs and abrasions. For
additional protection a stainless steel braiding is
available. |
| Connections |
The standard heating hose are supplied with a
single cable 1.5M long and a 7-pin DIN plug. The plug
comprises of single phase to pin 1 or 2, a neutral
supply to pins 3 or 4. Pins 5 and 6 are thermocouple
pins. Centre pin7, is the earth pin. A panel-mounted
socket can be supplied to enable simple connection to
the spare tool zone temperature controller. |
| End Fittings |
The end fitting or threaded connector are
available in metric and BSP threads. There are also
two styles of connectors Plain Flanged End and
Universal Conical 60º (female) |
