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Forehearth Thermocouples
Benefits:
- Long-lasting operation
- All temperatures are repeatable + 1o
- Lower unit cost
- Reduces cold junction errors
- Ease of installation, maintenance and replacement
BH-F (Engineering) Ltd offers glass manufacturers two thermocouple product options:
simplex and triplex.
Each product is designed to perform in the harsh environment of a glassmaking forehearth,
a design apProach which provides a long-lasting operating life.
The simplex thermocouple is ideal for measuring glass temperature in the forehearth
at the entry point or as a specific control zone sensor.
The triplex thermocouple gives glass manufacturers accurate three-level readings
in both the equalising and entry zones facilitating
rapid temperature homogeneity measurement and control.
Many glass manufacturers join three triplex thermocouples together,
forming a nine-point temperature grid to register forehearth glass homogeneity.
This practice heightens the demand for thermocouples that combine
high performance with modest cost.
Features
- Rugged design gives strong resistance to thermal shock.
- All thermocouples on the same order are made from the same wire melt.
- Calibration certificate.
- Use of precious metal content is minimised.
- Design reduces radiant heat exposure to the termination head.
- Armoured flexible extension cable with plug and junction box is provided with each unit.
Technical Data
| Measurement Range: | 800oC-1700oC continuous(1472oF-3092oF continuous) |
| Element type: | International Standard Type "B" (70% Platinum-30% Rhodium/94% Platinum-6% Rhodium); Type "R" and "S" available on request. |
| Sheath Type: | ODS Platinum supported by an alumina tube |
| Thermocouple Wires: | 0.5mm wire diameter, fully insulated and supported junction. |
| Forehearth Atmosphere: | not suitable for use in a reducing atmosphere |
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