CPM223 PH Transmitter Spare Parts Overview
The CPM223 PH transmitter is widely used in industrial process control, and its spare parts selection directly affects equipment maintenance efficiency and operational stability. This article summarizes the commonly used spare part order numbers, specifications, and applicable scenarios for the CPM223 series transmitters, facilitating quick reference for engineering technicians and procurement personnel.
Spare parts categories include: relay output modules, power modules, housing accessories, mainboards, terminal blocks, communication modules, and software upgrade packages, etc. The following is a detailed list by category.
Relay Output Modules
Relay modules are used to expand the transmitter's digital output capability, supporting various contact configurations and current inputs. When purchasing, pay attention to the number of contacts and whether they include 4-20mA current input.
| Order Number | Specification Description | Remarks |
|---|---|---|
| 51500320 | Relay output module, 2 floating changeover contacts | LIQUISYS-M basic version upgrade |
| 51511446 | Relay module, 2 floating changeover contacts | LIQUISYS-M basic version upgrade |
| 51500321 | Relay output circuit board, 4 floating changeover contacts | LIQUISYS-M basic version upgrade |
| 71129943 | Relay module, 4 dry changeover contacts, with protective coating | Electronics with protective coating |
| 51511447 | Relay module | — |
| 51504304 | Relay output module, 2 contacts + 4-20mA current input | LIQUISYS-M basic version upgrade |
| 51504305 | Relay output module, 4 contacts + 4-20mA current input | LIQUISYS-M basic version upgrade |
Note: If cleaning function (Chemoclean) is required, the 4-relay board (order number 51500321) must be ordered separately.
Power Modules
The CPM2X3 transmitter supports AC and DC power supply. Spare parts include power supply kits and versions with protective coating.
| Order Number | Specification Description |
|---|---|
| 51500317 | CXM2X3 AC power supply kit |
| 71129939 | CXM2X3 AC power supply 100/115/230 V AC, with protective coating |
| 51500318 | CXM2X3 DC power supply kit |
Housing and Mechanical Accessories
Housing accessories are used for mechanical assembly and protection of the transmitter, including side panels, bottom covers, terminal blocks, etc.
| Order Number | Specification Description |
|---|---|
| 51501075 | CXM223 housing assembly kit |
| 51501076 | CXM223 mechanical housing parts kit |
| 51502124 | CXM223 side panel kit |
| 51502513 | CXM223 Profibus DP bottom cover kit |
| 51501086 | CXM223 grounding terminal block kit |
| 51501078 | CXM223 terminal block kit |
| 71071440 | CXM223 front panel + 6 key riser kit |
Mainboards and Communication Modules
The mainboard is the core of the transmitter. Different models support communication protocols such as HART, Profibus PA/DP, etc. When purchasing, confirm the communication type and hardware version.
| Order Number | Specification Description | Remarks |
|---|---|---|
| 51507096 | MKP2 accessory pack, pH input module MEK | — |
| 51518244 | Transmitter module for pH glass electrodes and ORP sensors | — |
| 51514966 | Universal digital transmission spare part | — |
| 71129957 | Digital transmitter housing, CPM2x3 MKD1 transmitter module for Memosens communication, with protective coating | Electronics with protective coating |
| 51501081 | CPM2X3 mainboard I1 kit | — |
| 51501083 | CPM2X3 mainboard I1 HART kit | — |
| 71129949 | CPM2X3 mainboard, 1 current output, with HART, with protective coating | Electronics with protective coating |
| 51501082 | CPM2X3 mainboard I2 kit | — |
| 51501084 | CPM2X3 mainboard I2 HART kit | — |
| 51501085 | CPM2X3 mainboard Profibus PA kit | — |
| 51502503 | CPM2X3 main module Profibus DP kit | — |
| 71134724 | CPM2X3 mainboard, Profibus DP, module name LSCP-DP, hardware 2.10 and above | — |
| 71134732 | Relay module Profibus DP, 2 relays + 1 current input DP connection, hardware 2.10 and above | — |
Terminal Blocks and Connectors
Terminal blocks are used for signal and power connections. Different models correspond to different communication protocols.
| Order Number | Specification Description |
|---|---|
| 51501205 | CUM223 terminal block kit |
| 51501077 | CPM223 terminal block kit |
| 51502125 | CPM223 terminal block Profibus PA kit |
| 51502494 | CPM223 terminal block Profibus DP kit |
| 51501070 | CPM223 coaxial cable plug-in slot with display board kit |
| 50074961 | BNC plug, for connecting pH measuring cable (panel-mounted transmitter) |
| 50047795 | Housing mounting bracket |
Software Upgrade Packages
Software upgrade packages can extend transmitter functions. The instrument serial number must be provided. Some upgrade packages need to be used with hardware modules.
- 51500385: Extended software upgrade package, upgrades LIQUISYS-M basic version to S version (plus package), supports pH, conductivity, temperature, chlorine, oxygen and other parameters. Instrument serial number required.
- 51500963: Cleaning function upgrade package, adds Chemoclean cleaning function. Instrument serial number required. If the 4-relay board is not installed, order 51500321 separately.
Selection and Ordering Notes
- Confirm the transmitter model and hardware version, especially the Profibus DP module requires hardware 2.10 and above.
- Distinguish between basic and upgraded functions, and select relay modules or software upgrade packages as needed.
- Electronics with protective coating are suitable for harsh environments, such as 71129943, 71129939, etc.
- Be sure to provide the instrument serial number when ordering software upgrade packages.
- Terminal blocks must match the communication protocol (HART, Profibus PA/DP).
Correct selection ensures long-term stable operation of the CPM223 PH transmitter and reduces maintenance costs. If in doubt, consult the manufacturer or authorized distributor.