CA80COD Online COD Analyzer Selection Guide
CA80COD is an online COD analyzer using the potassium dichromate method, suitable for various water quality monitoring scenarios. The selection table includes modules for certification, measurement range, housing, power supply, communication, etc. Users can combine configurations according to actual needs. The following is a detailed selection description.
Certification Options
Select the corresponding certification according to the usage environment to ensure compliance and safety.
- AA: Non-explosion-proof occasions
- GR: Non-explosion-proof occasions + EAC
- HR: Non-explosion-proof occasions + CCEP mark
- N6: *CHN Ex db eb pxb IIC T4 Gb (explosion-proof occasions)
- UR: Non-explosion-proof occasions + UKCA mark
Measurement Range Options
CA80COD offers multiple measurement ranges. Users need to choose the appropriate range based on the COD concentration of the water sample.
| Code | Measurement Range | Description |
|---|---|---|
| C0 | 10-500 mg/l O2 | ***COD potassium dichromate method |
| C1 | 10-5000 mg/l O2 | ***COD potassium dichromate method |
| C2 | 40-20000 mg/l O2 | ***COD potassium dichromate method, with internal dilution |
| C3 | 10-5000 mg/l O2 | ***COD potassium dichromate method, with internal dilution (1:4) |
| C4 | 0-500 mg/l O2 | COD potassium dichromate method |
| C5 | 0-5000 mg/l O2 | COD potassium dichromate method |
| C6 | 0-5000 mg/l O2 | COD potassium dichromate method + internal dilution (1:4) |
| C7 | 0-500 mg/l | High chloride version |
| C8 | 0-4000 mg/l | High chloride version |
Sampling Points and Sample Transport
The number of sampling points is fixed at 1, and the sample transport method can be selected as main unit extraction.
- Sampling Points: 1 (1x)
- Sample Transport: C (main unit extraction)
Housing Material Options
Select the housing type according to the installation environment. Special requirements should be noted for outdoor or explosion-proof occasions.
| Code | Description |
|---|---|
| 1 | Open type; plastic ASA-PC |
| 2 | Cabinet type; plastic ASA-PC |
| 3 | With stand cabinet housing; plastic ASA-PC, stand cabinet steel coated |
| 4 | *Second cabinet, steel, plastic coated |
| 5 | With housing type, outdoor version, plastic ASA-PC, 3 m sample tube heating |
| 6 | With housing type, outdoor version, plastic ASA-PC, 5 m sample tube heating |
| 7 | *Second cabinet, 304 stainless steel |
| 9 | Special type, please define TSP number |
Cable Entry and Power Supply
The cable entry type and power supply specifications must comply with on-site power supply conditions.
- Cable Entry: 0 (Metric), 1 (NPT), 2 (G)
- Power Supply: 1 (100...240 VAC ±10%, 50/60 Hz), 3 (100...120 VAC ±10%, 50/60 Hz), 4 (200...240 VAC ±10%, 50/60 Hz), 9 (special type)
Operating Language and Analog Outputs
Preset operating language and expandable analog outputs can be configured according to user needs.
- Preset Operating Language: AA (English), AB (German), AC (French), AD (Spanish), AE (Italian), AF (Dutch), AG (Portuguese), AH (Polish), AI (Russian), AJ (Turkish), AK (Chinese), AL (Japanese), AQ (Vietnamese), AR (Czech)
- Expandable Analog Outputs: E1 (2x 0/4...20mA), E2 (4x 0/4...20mA)
Digital Communication and Sensor Inputs
Digital communication protocols and sensor input types affect system integration and expansion capabilities.
- Digital Communication: FA (PROFIBUS DP, Webserver), FB (Modbus RS485, Webserver), F2 (Modbus TCP, Webserver + optional analog outputs), F3 (Webserver + optional analog outputs), F4 (EtherNet/IP, Webserver + optional analog outputs), F5 (PROFINET, Webserver + optional outputs)
- Digital Sensor Inputs: G1 (1x Memosens), G2 (2x Memosens), G3 (4x Memosens), G4 (1x Memosens, M12 socket), G5 (2x Memosens, M12 socket), G6 (4x Memosens, M12 socket)
Test Certificates and Additional Inputs/Outputs
Test certificates and additional input/output modules are used to meet specific certification and control requirements.
- Test Certificates: KC (*Inspection Certificate EN 10204-3.1), K9 (special type)
- Additional Inputs/Outputs: MB (2x digital; 2x digital), MC (4x digital; 4x digital), MG (2x relay), MH (4x relay), MO (2x analog input 0/4...20mA), M9 (special type)
Installation Accessories and Accessories Included
Installation accessories and accessory packages can simplify on-site installation and pretreatment.
- Installation Accessories: NA (North American power cord), O9 (special type)
- Accessories Included: R1 (Y-type pretreatment with process connection, ID 40mm adhesive connection, straight), R2 (Y-type pretreatment with process connection, 1 1/4" PVC schedule 40 coupling (not selectable)), R3 (filter installation kit, quick fasteners), R9 (special type)
Communication Software and Edge Functions
Communication software and Edge functions support data management and remote monitoring.
- Communication Software: TM (mathematical calculations), T1 (service interface CDI, external), T3 (***field-type Data Manager software, Analysis), T4 (industrial SD card, 1GB), T5 (feedback control), T9 (special type)
- Edge Communication: UC (Ethernet), UE (cellular network/Ethernet)
- Edge Functions: UP (*Netilion - interface)
- Marking: Z1 (TAG, see additional notes)
Selection Notes
When selecting, pay attention to explosion-proof certification, measurement range and dilution options, housing material and installation environment, communication protocol compatibility, etc. It is recommended to consult the manufacturer for complete selection codes and TSP numbers.
