Boiler house Level controls
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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 2020
TI-P693-19 EMM Issue 1
CP40 Conductivity Probe
Description The Spirax Sarco CP40 conductivity probe is used in conjunction with a controller to measure the conductivity (or TDS) of water, usually in a steam boiler for the purpose of monitoring and controlling blowdown. The probe may be installed in a Spirax Sarco probe elbow, a screwed flange, or directly in a boiler connection. The CP40 is supplied in four nominal tip lengths, and is cut to the exact length required prior to installation. A DIN 43650 cable socket with Pg 11 cable gland is supplied with the unit. Principal features:
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- Conductivity probe for use with blowdown controllers. - Suitable for use in steam boilers up to 32 bar g, 239 ° C. - All wetted parts in austenitic stainless steel/PTFE. - Easily cut to length.
Caution: The probe is not suitable for outside installation without additional environmental protection. Available tip lengths mm (inches) 300 (11.8), 500 (19.7), 1 000 (39.4) and 1 500 (59). Pressure/temperature limits Nominal pressure rating PN40 Maximum boiler pressure 32 bar g (464 psi g) Maximum operating temperature 239 ° C (462 ° F) Maximum ambient temperature 70 ° C (158 ° F) Designed for a maximum cold hydraulic test pressure of: 60 bar g (870 psi g) Technical data Minimum distance from boiler tubes 20 mm ( ¾ ") Minimum immersion depth (Vertically installed probes) 100 mm (4") Maximum cable length (probe to controller) See controller IMI Minimum conductivity 10 µS/cm or 5 ppm Degree of protection IP54
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