CCM253 Spare Parts List Overview

CCM253 is the core model of the LIQUISYS-M series transmitters, with a wide variety of spare parts and upgrade kits. Based on the official spare parts list, this article organizes key order numbers, specifications, and applications for quick reference by engineering technicians and procurement personnel. All spare parts are suitable for the LIQUISYS-M basic version or extended version, and some require the instrument serial number.

CCM253 Transmitter Appearance

Relay and Output Modules

Relay Output Modules

Used to expand the relay output capability of the LIQUISYS-M basic version, supporting floating changeover contacts. Common models are as follows:

Order NumberSpecificationDescription
51500320Relay Output Module2 floating changeover contacts
51511446Relay Module2 floating changeover contacts
51500321Relay Output Circuit Board4 floating changeover contacts
51511447Relay Module4 floating changeover contacts
51504304Relay Output Module2 contacts + 4-20mA current input
51504305Relay Output Module4 contacts + 4-20mA current input

Note: Some modules need to be used with the main module; please confirm compatibility during selection.

Profibus Relay Module

71134732 is a Profibus DP relay module, including 1 relay module, 2 relays, and 1 current input DP connection, requiring hardware version 2.10 or above. This module is suitable for Profibus DP network expansion.

CCM2x3 Main Module Kits

The main module is the core processing unit of the transmitter, and different models support different communication protocols and input types. Common kits are listed in the table below:

Order NumberSpecificationDescription
51502467Kit CCM2x3 Main ModuleCentral module I1
51502497Kit CCM2x3 Main ModuleCentral module I1 HART
51502468Kit CCM2x3 Main ModuleCentral module I2
51502496Kit CCM2x3 Main ModuleCentral module I2 HART
51502495Kit CCM2X3 Main ModuleCentral module Profibus PA
51502498Kit CCM2X3 Main ModuleCentral module Profibus DP
71134731Kit CCM2x3: Central Processing UnitCentral processing unit

When selecting the main module, it must be determined according to the fieldbus type (HART, Profibus PA/DP) and the number of input channels.

Power Supply and Transmitter Kits

Power Supply Modules

  • 51500317: CXM2X3 AC Power Kit
  • 51500318: CXM2X3 DC Power Kit

Transmitter Kits

  • 51502466: KIT MKC1 MEK Transmitter Cl wo pH non Ex
  • 51502465: Kit MKC1 MEK Transmitter Cl+pH non Ex

These kits are suitable for chloride and pH measurement in non-explosion-proof environments.

CXM253 Housing and Mounting Parts

The housing and internal mounting parts ensure the mechanical protection and connection reliability of the transmitter. Common spare parts are as follows:

  • 51501068: KIT CXM253 Instrument Panel (Housing Cover)
  • 71071446: Kit CxM253 Front Membrane + 6 Key Lifters
  • 51501073: CXM253 Internal Mounting Parts
  • 51502184: Transmitter Connection Head
  • 51501072: CXM253 Mounting Base Plate
  • 51501069: Mounting Hinge
  • 51501079: CXM223 Terminal Block Power
  • 51501074: CXM253 Flat Cable
CXM253 Housing Parts

Installation Accessories and Upgrade Kits

Installation Accessories

50086842: LIQUISYS Transmitter Column Mounting Kit, used to mount field transmitters on horizontal or vertical pipes (max diameter 60mm), material is stainless steel V2A.

Software and Function Upgrade Packages

Upgrade packages can extend transmitter functions and require the instrument serial number. Common upgrade packages are as follows:

  • 51500385: "Extended Software" upgrade package, upgrades LIQUISYS-M basic version to S version (plus-package), supporting pH, conductivity, temperature, chlorine, oxygen, and other parameters.
  • 51500963: "Cleaning Function" upgrade package, adds Chemoclean cleaning function. If the 4-relay board is not installed, 51500321 must be ordered separately.
  • 51502460: pH measurement upgrade package, used to upgrade the basic version Liquisys S CCM2X3-EK to pH or ORP measurement.
  • 51503526: pH measurement upgrade package, used to upgrade Liquisys S CCM2X3-ES to pH or ORP measurement.

Important Note: When ordering upgrade packages, the instrument serial number must be provided to ensure compatibility.

Selection and Procurement Recommendations

  1. Confirm the transmitter model and hardware version, and verify spare part compatibility.
  2. Select the corresponding transmitter kit or upgrade package according to the measurement parameters (pH, conductivity, chlorine, etc.).
  3. If relay output expansion is needed, select the module based on the number of contacts and current input requirements.
  4. When upgrading software functions, prepare the instrument serial number in advance.
  5. Refer to the order numbers during procurement to avoid confusion between similar specifications.

Through this spare parts list, the required components can be quickly located, improving maintenance efficiency.