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Consultation Hotline:
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
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3300D
As shown in the figure:
● Can be used in conjunction with our company’s pH, ORP, DO, conductivity, and turbidity Sensors
● Features display, signal transmission, alarm, and automatic cleaning control functions
● Supports tag number entry
● Provides two 4–20 mA outputs for transmitting the primary measured parameter and the temperature measurement value
● Provides three relay outputs (upper/lower limit alarms and automatic cleaning), supporting both normally open and normally closed wiring configurations
● Provides password management permissions for operations to prevent unauthorized modification of parameter settings
● Supports external RS-485 communication
● Supports Chinese/English menu display (default is Chinese at factory settings)
● The entire unit meets an IP67 protection rating, allowing for outdoor, open-air installation and operation
Technical Indicators:
| Main Functions | Measurement/Display/Loosening/Alarm/Automatic Cleaning |
| Screen Parameters | 3.5-inch high-definition monochrome display (320×240) |
| Measurement range |
pH: 0–14.00 pH ORP: -2000 mV to +2000 mV Conductivity: 0–400 mS/cm; Inductive conductivity: 0–2000 mS/cm; Polarographic dissolved oxygen: 0–20 mg/L; Fluorescence-based dissolved oxygen: 0–50 mg/L Turbidity: 0.1–4000 NTU |
| Temperature | 0–99.9°C |
| Automatic Temperature Compensation | Yes |
| Analog Output |
2-wire (4–20) mA (500 Ω load), accuracy: ±0.2% |
| Relay output |
Three-channel open/normally closed contact output, 250 Vac / 30 Vdc / 3 A (max) |
| Alarm Settings | Upper/Lower Limit Alarm (with configurable lookback and delay) |
| Power supply | Compatible with 220VAC and 24VDC |
| Communication interface | RS485 |
| Protection rating | IP67 |
| External dimensions | 144×152×113mm |
| Opening size | 137×137 mm |
| Installation Method | Panel-mounted/Pipe-mounted/Wall-mounted |
Inquiry and Consultation
International Sales Hotline:
Address: No. 336, Heping Avenue, Wuchang District, Wuhan City
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