COS41 Dissolved Oxygen Sensor Spare Parts Overview
COS41 is a galvanic dissolved oxygen sensor widely used in water and wastewater treatment. To ensure its long-term stable operation, regular replacement of spare parts is essential. This article compiles a list of commonly used spare parts for the COS41, including protective caps, cables, maintenance kits, etc., with detailed specifications and order numbers for quick selection by engineering technicians and procurement personnel.
Spare Parts List and Specifications
Protective Caps
- 71495126: COSxx 8.5 mm aperture cage-type dissolved oxygen sensor protective cap
- 71495128: Kit COSxx standard protective cap
- 71495130: COSxx dissolved oxygen sensor protective cap, suitable for fish farm aquaculture applications
Measuring Cables
- 51506817: Measuring cable, length 7 m, pre-assembled, suitable for COS41 sensors with TOP68 connector
- 51506818: Measuring cable, length 15 m, pre-assembled, suitable for COS41 sensors with TOP68 connector
Maintenance Kits
- COV45-: COS41/COS51x maintenance kit COV45, including membrane cap, O-rings, and other maintenance materials, suitable for Memosens and fixed cable sensors COS51x and COS41
Junction Boxes
- 50003987: Junction box VBM, with 10 high-impedance terminals, protection class IP65, dimensions 125 x 80 x 55 mm (L x W x H)
Calibration Caps and Zero-Point Gel
- 51518599: Calibration cap for COS31/41/51D/61/71
- COY8-: Zero-point gel COY8, for zero-point verification, calibration, and adjustment of oxygen and disinfection sensors, suitable for galvanic and optical sensors, diameters 12, 25, and 40 mm, can be used in laboratory or on-site
Spare Parts Parameter Comparison Table
| Spare Part Name | Order Number | Specification Description |
|---|---|---|
| Cage-type protective cap | 71495126 | 8.5 mm aperture, suitable for COSxx |
| Standard protective cap | 71495128 | Kit COSxx |
| Fish farm aquaculture protective cap | 71495130 | Suitable for COSxx |
| Measuring cable (7m) | 51506817 | Pre-assembled, TOP68 connector, suitable for COS41 |
| Measuring cable (15m) | 51506818 | Pre-assembled, TOP68 connector, suitable for COS41 |
| Maintenance kit | COV45- | Includes membrane cap, O-rings, etc., suitable for COS41/COS51x |
| Junction box | 50003987 | IP65, 10 high-impedance terminals, 125x80x55mm |
| Calibration cap | 51518599 | Suitable for COS31/41/51D/61/71 |
| Zero-point gel | COY8- | For zero-point calibration, diameters 12/25/40mm |
Selection and Ordering Recommendations
When ordering spare parts, be sure to verify the sensor model and connector type. For example, measuring cables must match the TOP68 connector of the COS41 sensor. The maintenance kit COV45- is suitable for both Memosens and fixed cable sensors, but the specific model must be confirmed. For special applications such as fish farm aquaculture, it is recommended to use the dedicated protective cap 71495130.
Regular maintenance can extend sensor life and ensure measurement accuracy. It is recommended to develop a maintenance plan based on operating conditions and stock commonly used spare parts.