Chemical Oxygen Demand (COD)_Cr）Online automatic analyzer

COD_Cr On-LineAutomatic Analyzer

V1.01

Instructions for Usebook

eye record

Chapter Special Statement on Safety Precautions 1

1.1 General Principles 1

1.2 Prevention of Electric Shock and Burns 1

1.3 Chemical hazard prevention 1

Chapter 2 Technical Specifications 2

Chapter 3 System Overview 3

3.1 application 3

3.2 System Description 3

3.3 Electrical components 3

3.4 Basic Principles 3

3.5 detection steps 3

Chapter Four Unpacking and installation 5

4.1 unboxing 5

4.2 install 5

4.2.1 Indoor requirements for monitoring substation buildings 5

4.2.2 install 6

Chapter 5 reagent 10

5.1 Zero point standard solution（0） 10

5.2 CODStandard solution（500） 10

5.3 Masking agent solution (reagent)A） 11

5.4 Oxidant solution (reagent)B） 12

5.5 Catalyst solution (reagent C) 13

5.6 Use and storage of reagents 14

5.7 Stability and reactivity 14

5.8 Placement of reagents 14

5.9 waste liquid treatment 14

Chapter 6 instrument operation 15

6.1 Instrument initialization 15

6.2 calibration 15

6.3wash 15

6.4 measurement 15

6.5 Introduction to Touch Screen 16

6.5.1Data setting method 16

6.5.2Instruction input and effective display 16

6.5.3Screen operation 16

Chapter 7 Fault repair 25

Chapter 8 routine maintenance 27

Technical specifications of CODG-3000 online COD analyzer

2.1 Method basis: National standard GB11914-89 "Water Quality - Determination of Chemical Oxygen Demand - Potassium Dichromate".

2.2 range：(5-1500)mg/L

2.3 indication error：Not exceeding ± 10%

2.4 Stability of indication: not exceeding ± 10% within 24 hours

2.5 Measurement cycle: The small measurement cycle is40Minutes, according to the actual water sample, it can take 5-120 minutesbetweenModify the resolution time.

2.6 Sampling period: time interval（40~9999min adjustable) and whole point measurement mode.

2.7 Calibration cycle: adjustable at any interval and time from 1 to 99 days.

2.8 Maintenance cycle: usually monthly, approximately30 min。

2.9Output: RS-232，4-20mA, RS485 (optional)

2.10Environmental requirements: Indoor environment with adjustable temperature, recommended temperature range of+5~35℃； Humidity ≤ 90% (non condensing).

2.11Power Supply:(AC230±10%)V，(50±0.5)Hz，。

2.12Size: Height 1570 x Width 500 x 450mm deep.

2.13Other: Abnormal alarms and power outages will not result in data loss;

Abnormal reset and power outageresetThe instrument automatically discharges residual reactants from the instrument and automatically returns to its working state.