SUNTEX - COD-9100 Online COD Analyzer

Reliable and User-Friendly, for a wide range COD measurement

 

The All-New COD-9100 is an all range online COD analyzer which is applicable for both inlet and effluent stage of industrial & municipal wastewater treatment, tap water and ground water. The unique liquid dosing design reduces cross contamination risk and ensures the measurement reliability. It also greatly increases the durability of the pump and tubing and thus reduces maintenance workload. The convenient touch screen HMI provides full process information, convenient settings, historical data, trend curve, and allows downloading via a USB drive. The COD-9100 is a state-of-art instrument that optimizes the quality of your online COD measurements.

  • • User-friendly interface with graphical display—quick and intuitive operations
  • • Human-Machine Interface equipped with graphical procedure illustrations
  • • Automatic display and estimation of residual reagent volume
  • • Up to 10,000 sets of historical measurement—downloadable via USB drive
  • • Programmable settings measuring steps, feed, waste discharge, and heating duration
  • • Automatic residual reagent discharge and self-clean before starting new measurements
  • • Unique liquid dosing design—reagents and wastes do not contact the peristaltic pump tubing;  increase lifespan and avoid sample cross contamination
  • • Automatic light intensity compensation enhances measurement stability 
  • • Security protection: real-time leak detection, lockable door, automatic error-shutdown,  password protection, and self-analysis
  • • Program controlled external sample dosing pump—prevents constant running and extends pump lifespan
  • • Built-in water sample filter
  • • Recovers and continues previous settings following power outage
  • • Wheels and detachable units for ease of movement
  • • Acid-resistant PFA on reagent tubing paths

Model

COD-9100

Measuring Mode

COD / ABS / Temperature

COD Range

0~200 mg/L,  5~1000 mg/L,  50~2500mg/L,  100~5000 mg/L,  ( 500~10,000 mg/L optional)
Different ranges can be measured by changing the ratio of reagent to the water sample

Resolution

0.1 mg/L

Accuracy

                                                        <100 mg/L:  <±10 mg/L

>100 mg/L:  <±10 % of measuring values

Measuring accuracy can be increased by raising the water sample ratio

Repeatability

<±5% of measuring values

Principle

Closed Rapid Digestion Spectrophotometry---Potassium Dichromate method

Ambient Conditions

Temperature: 5~50°C; Humidity: <90% (without condensation)

Display

10 inch of HMI with color touch screen display
Transmitter with large LCM display

Languages

English/ Traditional Chinese/ Simplified Chinese

Digestion Time

3 ~ 120 minutes (Freely selectable)

Min. Measuring Time

Approx. 30 minutes (as digestion time is set as 10 minutes)

Measuring Cycle

Fixed duration of 25~9999 minutes, or self-defined on the hour

Calibration

Manual or automatic calibration, automatic calibration duration: 1~99 days

Contact Output

Relay 1 & 2

RELAY ON/OFF contact, 240VAC 0.5A Max. (recommended)

Two individual programmable contacts for Hi point, Lo point, measurement, calibration, wash and error shutdown

Relay 3

RELAY ON/OFF contact, 250VAC 10A Max. (recommended)

One control point for sampling pump

Analog Output 1

Isolated DC 0/4~20mA corresponding to COD measurement, max load 500Ω

Analog Output 2

Isolated DC 0/4~20mA corresponding to COD measurement or temperature, max load 500Ω

Digital Interface

HMI

Isolated RS-485 interface, with Modbus RTU protocol, offers readouts, calibration data, setup information & error message, and available for remote setting of control parameters

Transmitter

Isolated RS-485 interface, timing interval outputs COD measurement, temperature, status & time

HMI
  1. Remote control via Modbus  2. Detachable and controllable via RS-485

Transmitter

  1. Running programs of transmitter are regulated by HMI
  2. While not connected to HMI, works independently based on set programs
  3. Directly trigger measurement or emergent shutdown via transmitter under auto or  

measurement status

Reagent

Depletion

One sets of reagents( 1 liter oxidant, 1 liter masking agent, 1 liter catalyst) for proceeding about 500 measurements (Changes depend on measuring cycles and amounts of reagent)

Piping/solenoid valve

Acid-resistant PFA material applied on all the path reagent goes through

Data Logger

HMI records measurement data, calibration data and warning data up to 10,000 data sets
Download data via USB-A interface

Power Supply

Specify single-phase power voltage and frequency when ordering

01: 220VAC(-15~+10%)/60Hz   

02: AC 220VAC(-15~+10%)/50Hz

Power

275W Max

Dimensions

163cm × 53cm × 46cm (H×W×D)

Weight 

Approx. 66 Kg (without reagents)

Protection

Human Machine Interface: IP65 (NEMA 4X)