BlueJing
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| Brand | BlueJing |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | LJ-JK90-CH2O |
| Detection Principle | Electrochemical Sensor (Formaldehyde-Specific) |
| Measurement Range | 0–100 ppm, 500 ppm, 2000 ppm, 5000 ppm, 10,000 ppm, 20,000 ppm, 50,000 ppm, or 0–20% Vol (configurable per application) |
| Repeatability | ≤±2% FS |
| Sampling Method | Built-in diaphragm pump (800 mL/min flow rate) |
| Response Time | T90 ≤ 20 s |
| Operating Temperature | −40 °C to +70 °C |
| Relative Humidity Range | 0–99% RH (non-condensing) |
| Display | 3.5″ TFT color LCD (320 × 240 px) |
| Data Storage | Standard 100,000 records |
| Battery | 3.6 V DC, 10,000 mAh rechargeable polymer lithium battery |
| Protection Rating | IP66 |
| Explosion Protection | Ex ia II CT6 (Intrinsic Safety) |
| Dimensions | 230 × 210 × 120 mm (L × H × W) |
| Weight | 2.5 kg |
| Brand | Bluejing |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | LJ-YDZ |
| Measurement Parameters | Hardness (0.2–40,000 mg/L as CaCO₃), Chloride Ion, pH/Temp, Dissolved Oxygen (DO), Oxidation-Reduction Potential (ORP) |
| Display | 10-inch Color TFT Touchscreen (Bilingual Chinese/English UI) |
| Output Options | 4–20 mA (opto-isolated), RS-485 / RS-232 (Modbus RTU), Relay Alarms (dual SPDT), Optional HART, NB-IoT/GPRS/LoRa |
| Power Supply | AC 220 V ±10% or DC 24 V |
| Power Consumption | ≥5 W |
| Enclosure Rating | IP65 (main cabinet), IP68 (submersible sensors) |
| Operating Temperature | 0–60 °C (non-freezing) |
| Storage Temperature | −10–60 °C |
| Installation Modes | Top-mount, Top-flange, Side-wall, In-line, Immersion, Flow-through |
| Sensor Protection | Integrated optical-electronic filtration, self-cleaning brush, ruggedized protective cap |
| DO Measurement Principle | Fluorescence-based (membrane-covered, electrolyte-free) |
| Temperature Compensation | Built-in NTC sensor per probe |
| Data Refresh Interval | Adjustable down to 1 s |
| Repeatability | ≤1% FS |
| Hardness Accuracy | ±1–2% of calibrated range |
| Dimensions (Cabinet) | 156 × 150 × 85 mm (W×H×D) |
| Panel Cutout | 156 × 94 mm |
| Standard Cable Length | 10 m (customizable) |