Five-parameter Automatic Monitor
Introduction of the machine
The five-parameter online analyzer is composed of controller, pH sensor, conductivity sensor, dissolved oxygen sensor and turbidity sensor. The controller can be connected to 4 sensors， at the same time has analog quantity, digital quantity, switching quantity and other output interfaces.
Sensor output RS485 signal, and anti-interference ability is stronger in the field application. Restore the remaining potassium permanganate, and then drop back excess sodium oxalate with a standard solution of potassium permanganate, by calculating the permanganate index in the sample.
The technical standards
Display screen：7 inch touch screen (color)
Power supply：(85~260)V AC、(9~30)V DC（customization)
Power consumption：no more than 8 w
Storage temperature：(-20~70)℃
Operating temperature：(-10~60)℃
Supporting quantity of sensor：4 digital sensors
Output: Modbus RTU, 4 channel (0/4~20）mA analog output, Load 500 Ω
Relay：4 channel SPDT relay(250VAC/10A)
| Name | PH sensor | Conductivity sensor | Dissolved oxygen sensor | Turbidity sensor | Temperature sensor |
| Measurement | PH | Conductivity | Dissolved oxygen | Turbidity | Temperature |
| Range | 0-14 | 0-200mS/cm | 0-20mg/L or 0-200% | 0-100NTU, 0-500NTU, 0-2000NTU,0-4000NTU | 0-50℃ |
| Accuracy | ≤±0.1 | ≤±1% | ±0.3mg/L | ≤±2% reading | ±0.1℃ |
| Repeatability | ≤±0.1 | ≤1% | ±0.3mg/L | ≤±1% reading | ≤1% |
| Resolution ratio | 0.01 | 0.01mS/cm | 0.01mg/L | 0.01NTU | 0.1℃ |
| Zero drift | ≤±0.1 | ≤±1%F.S | ±0.3mg/L | ≤±3%F.S | / |
| Span drift | ≤±0.1 | ≤±1%F.S | ±0.3mg/L | ≤±3%F.S |
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| Calibrating period | 6 months | ||||
| Cleaning system | / | / | / | Automatic cleaning by cleaning brush | |
| Level of protection | IP68 | IP68, 60 meters underwater | |||
| Service voltage | （9-15）V DC | （9-30）V DC | |||
| Power dissipation | 0.5W | 1.1W（not in clean mode） | |||
| Contact | RS485（Modbus RTU） | ||||
| Temperature | （0-50）℃ | ||||
| Dimensions | 215mm*φ40mm | 207mm*φ51mm | |||
| Weight | 1.0Kg | 2.0Kg | |||
| Material | Stainless steel（316L）, POM | ||||
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