Boiler house Conductivity sensors
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Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2014
TI-P403-45 AB Issue 6
S20 Sensor Chamber and Sensors
Description The Spirax Sarco S20 sensor chamber is fitted with conductivity and temperature sensors used to determine the conductivity of liquids. The use of a temperature sensor enables an accurate measurement to be made when the temperature varies, as in the case of condensate return monitoring systems. The hexagonal in-line sensor chamber is available screwed 1¼" BSP or 1" NPT. Adjacent radial female screwed connections are provided for:
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2.5.5
- CP10 conductivity sensor ( " BSP). - TP20 temperature sensor (¼" BSP).
An additional ¼" BSP (¼" NPT) connection is provided on the other side of the chamber for taking a sample if required. Spirax Sarco can supply a sample cooler for cooling hot samples, or a blanking plug if the connection is not required. Principal features:
S20 sensor chamber
- Allows continuous temperature compensated measurement - Purpose designed sensor chamber for in-line mounting - Simple removal of sensors for cleaning
Limiting conditions The sensor chamber assembly inclusive of sensors is limited to: Maximum pressure 11 bar g Maximum temperature 150 °C Minimum conductivity 10 µS/cm or 10 ppm
CP10 conductivity sensor
TP20 temperature sensor
Materials S20 sensor chamber
Stainless steel
BS 970 303 S31
Body
Stainless steel
BS 970 303 S31
Insulator
PEEK
Pin
Stainless steel
BS 970 303 S31
CP10 conductivity sensor
Seal
PTFE
Disc springs
Stainless steel
DIN 1.4122
Washer
Stainless steel
A2 BS 4320
Body and probe
Stainless steel 316
ASTM A269 Gr. 316
TP20 temperature sensor
Cable insulation
PFA
TI-P403-45 AB Issue 6
S20 Sensor Chamber and Sensors
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