Thermocouple Specifications; Cable Insulation; Thermocouple Insulation - BYK-Gardner temp-gard basic Bedienungsanleitung

temp-gard basic Hardware

Thermocouple Specifications

Over the years, 'standard' thermocouples have been developed using materials chosen for
sensitivity (voltage change per temperature change), linearity, (consistency of sensitivity
over the useful temperature range), price and availability. Current standards include types
K, N, R, S and T, each type being identified by the color of the connector. The 'standard'
thermocouple probe for oven operation is the type K.

Cable Insulation

Type Temperature Accuracy of probes supplied by
Range BYK-Gardner
K -150 to +1370 °C Glass Fiber, MI or (0 to +500 °C) ± 1,1 °C or ±0,4%,
PTFE whichever is greater

Thermocouple Insulation

The practical operating temperature of the thermocouple probes is limited by the
temperature characteristics of the cable insulation material.
Insulation Upper Temperature Limit
Glass Fiber, thick +500 °C (932 °F) continuous,
+700 °C (1292 °F) peak
Mineral Insulation (MI) +1250 °C
PTFE +260 °C
Glass Fiber insulated probes are impregnated with a silicone resin binder and suitable for
continuous operation at temperatures up to +500 °C (932 °F), and short term operation at
temperatures up to +700 °C (1292 °F).
PTFE (PTFE=Polytetrafluorethylene) is a robust, flexible, non-stick material suitable for
general purpose use at temperatures up to +260 °C (500 °F). It is the standard insulation
for temp-gard basic probes. It cannot be used when probe cables may be in close
proximity to heating elements.
Attention
PTFE is non-flammable. Temperatures greater than +260 °C will cause a thermal
decomposition of the product and release small amounts of toxic fumes. The most
important decomposition products are:
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