CP30 Conductivity Probe
Boiler controls and systems > TDS blowdown controls
CP30 Conductivity Probe
The CP30 is a Spirax Sarco conductivity probe for steam boiler TDS monitoring and blowdown control systems. The probe can be cut to the required insertion length and installed in a probe elbow, threaded flange or boiler connection.
Quick facts
Where CP30 fits in TDS blowdown control
CP30 is the conductivity probe route for steam boiler projects that need continuous dissolved-solids measurement as part of automatic TDS blowdown control. It is normally selected with a compatible controller, a suitable mounting point and a blowdown valve package.
Selection and installation checks
Before ordering, confirm the probe length, thread standard, boiler connection, minimum immersion depth and cable route back to the controller. Probe lengths of 500 mm and below may be installed vertically or horizontally; longer probes should be installed vertically.
CP30 supports standard probe lengths of 300 mm, 500 mm, 1000 mm
and 1500 mm. The confirmed connection options are 3/8" BSP and
1/2" NPT, with PN40 pressure rating and maximum boiler pressure of
32 bar g.
Related controller route
If the project is still choosing the controller, return to the TDS blowdown controls family or compare BC3150 and BC3250.
Use the TDS blowdown controls family page when the whole package is still being defined. For controller selection, compare the BC3150 boiler blowdown controller and the BC3250 boiler blowdown controller.
Installation and Maintenance
| Document | Reference | Language | Download |
|---|---|---|---|
| CP30 Conductivity Probe | IM-P403-34 | English | Download |
Continue your CP30 selection route
CP30 selection is normally confirmed with the controller, mounting position, probe length, thread standard and boiler water TDS control target.
Back to the TDS blowdown controls family
Return to the wider TDS blowdown controls route when the project is still comparing controllers, probes and blowdown valve arrangements.
Confirm the controller route
If the system needs automatic TDS blowdown control, continue by comparing BC3150 and BC3250 controllers.
Confirm the controller route
If the system needs automatic TDS blowdown control, continue by comparing BC3150 and BC3250 controllers.