Overview
Salinity probe replacement kit
KIT-MPC-SP is a separate catalog listing. Its exact contents and current replacement relationship were not established in this review. Do not treat this SKU as equivalent to SP4 or to a complete MPC conversion kit; the guide below identifies the documented current paths.
Controller & Probe Replacement
Identify the installed controls first
Check the display's revision identifier. Establish MPC-3000 versus MPC-5000 before using a chip-based repair path; a system name alone cannot identify replacement electronics.
MPC-3000
SP4 requires an eligible MPC-5000 conversion. Check voltage, model exclusions and installation requirements in the 12V kit or 24V kit. Santa Cruz, Gulfstream and 380C are excluded by the conversion manual; Monterey remains under review. The conversion kit already includes an SP4 probe.
MPC-5000 chip revision
- B-series or A31: A40 board plus SP4.
- A34 or A35: SP4 with EL-MPC-SPCBA, or A40 board plus SP4.
- A36: SP4; daughterboard may be present or absent.
- A37, A39 or A40: SP4.
- Other or unreadable revision: no confirmed path in this reference.
Spectra Connect
Uses SP4. Check lead reach and installed connections.
View SP4 · View the complete A40 board
EL-MPC-SPCBA is not currently listed in this catalog. The microchip EL-MPC-MC11 is not the complete A40 board specified above.
Legacy probe and cable path
Legacy probe and cable path
Historical documentation identifies this as a probe-and-cable service kit. For an MPC-3000 installation that cannot obtain SP1, use the eligible full MPC-5000 conversion path: 12V conversion or 24V conversion.
