CUE21 Turbidity Meter Spare Parts List and Selection Guide

CUE21 Turbidity Meter Spare Parts Overview

CUE21 is an industrial instrument used for continuous turbidity measurement, widely applied in water treatment, chemical, and environmental monitoring fields. To ensure measurement accuracy and equipment lifespan, timely replacement of original spare parts is crucial. This article compiles the list of maintenance spare parts and accessories for CUE21 and compatible models, including order numbers, specifications, and purposes, facilitating quick selection by engineering personnel and procurement.

Core Maintenance Spare Parts

Electronic Modules and Junction Boxes

The electronic module is the core component of turbidity measurement, responsible for signal processing and light source driving. The on-site junction box provides power access and protection, ensuring stable operation of the transmitter. The following are key maintenance spare parts parameters:

Note: After replacing the electronic module, recalibration is required to ensure measurement accuracy.

Desiccants and Fittings

Desiccants are used to absorb moisture inside the instrument to prevent condensation on optical components; fittings are used to connect the flow cell and piping. Both are routine maintenance consumables.

• 51518578: CUE21/CUE22 desiccant, refill pack, turbidity measurement accessory
• 51518579: CUE21/CUE22 fittings, turbidity measurement accessory

Cleaning and Calibration Accessories

Ultrasonic Cleaning Glass Tube

The ultrasonic cleaning glass tube effectively removes deposits on the glass surface, reducing manual cleaning frequency. Order number 51518576, suitable for CUE21/CUE22, belongs to turbidity measurement accessories.

Calibration Kit

The calibration kit contains ready-to-use standard solutions for quick calibration of the instrument. Order number 51518580, suitable for CUE21/CUE23/CUE24, standard solution concentrations include 0.02 NTU, 10 NTU, and 1000 NTU.

• 0.02 NTU: Low range calibration point
• 10 NTU: Medium range calibration point
• 1000 NTU: High range calibration point

Flow Cell and Adjustment Components

Flow Chamber and O-ring

The flow chamber is used to suppress bubble interference and ensure measurement stability. The O-ring is used for sealing to prevent leakage. Related spare parts are as follows:

• 51518575: CUE21/CUE22 flow chamber, used for bubble suppression, turbidity measurement accessory
• 71267830: O-ring

Pressure Regulator and Flow Regulator

The pressure regulator and flow regulator are used to control sample flow rate and pressure, ensuring consistent measurement conditions. Order numbers 71085512 (pressure regulator CUE21/22) and 71267825 (flow cell flow regulator).

Spare Parts Selection Recommendations

To ensure long-term stable operation of the turbidity measurement system, it is recommended to stock consumable parts in advance according to the maintenance cycle. The following are common selection references:

Summary: The spare parts system of the CUE21 turbidity meter covers multiple aspects including electronics, mechanics, optics, and calibration. Proper selection of original spare parts can extend instrument lifespan and reduce downtime risk. Users are advised to formulate a spare parts inventory plan based on actual working conditions.