Suzhou Delfino Environmental Technology Co., Ltd.
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DPD Amperometric Free Chlorine Controller Based On TCCA For Freshwater
Brief Introduction
DRFN's online free chlorine controller is used for the measurement of free chlorine based on isocyanic acid. It uses DPD-1 method to determine the residual chlorine value by isocyanuric acid concentration.
Advantages Of The Free Chlorine Controller
Equipped with 2 settable 0/4~20mA active current loop outputs and each current output allows the user to specify what measurement value it represents.
Equipped with a two-wire RS485 interface.
Technical Parameters
| Product Name | Free Chlorine Controller |
| Product Model | ADS2-U3A-CC1 |
| Software Version | DRFN Chlorine Analysis software V1.0 |
| Display Range | 0.00-200.00mg/L |
| Resolution | 0.001 mg/L |
| Accuracy | Better than 0.15% of the measuring range |
| Stability | 0.05% of the measuring range every 24 hours, no accumulation |
| Repeatability | Better than 0.1% of the measuring range |
| Relay Control | 2 settable SPST relays, the max. load 3A/250VAC |
| Sensor Self-diagnosis | screen image and buzzer prompt |
| Analog Current Output | 2 settable 0/4~20mA active current loop output max. load 1000Ω |
| Communication Method | MODBUS RTU; support JSON text data format |
| Display Screen | 128*64 LCD |
| Time History/Data Record | Year/month/day/hour/min/second, record 14000 historical data |
| Protection Grade | IP66 |
| Operating Environment | 0～60℃, relative humidity less than 95% |
| Storage Environment | -20～70℃, relative humidity less than 55% |
| Shell Material | Enhanced ABS |
| Dimensions | 144*144*120mm (hole size 138*138 mm) |
| Mounting Method | Wall mounting, pipe clamping, panel installation |
| Power Supply | 100~240V AC |
| Weight | 800g |
The Matching Chlorine Sensors Recommendation
pH range: 4~12, greatly reduced pH dependence
Pressure range: 0~0.5 bar, no pressure surges and/or fluctuations
Temperature range: 0~45 ℃
Integrated automatic temperature compensation
Response time: T90 about 2 min
Flow rate: about 30 l/h, low flow dependence
Shaft length: standard 175 mm, and up to 220 mm in length (mA-Version)
Connection: for mA-version 2-pole terminal, M12 male
Material: PVC-U, PEEK, stainless steel 1.4571, microporous hydrophilic membrane
| Type | Measuring range: ppm | Resolution: ppm | Output single | Power supply | Item number |
| CC1MA2 | 0.01~2.00 | 0.01 | 4~20 mA | 12~30 V DC RL 50~900Ω | 3326094 |
| CC1MA5 | 0.01~5.00 | 0.01 | 3326096 | ||
| CC1MA10 | 0.01~10.00 | 0.01 | 3326095 | ||
| CC1MA20 | 0.01~ 20.00 | 0.01 | 3326107 | ||
| CC1MA2-M12 | 0.01~2.00 | 0.01 | 4~20 mA | 12~30 V DC RL 50~900Ω | 3426615 |
| CC1MA5-M12 | 0.01~5.00 | 0.01 | 3426616 | ||
| CC1MA10-M12 | 0.01~10.00 | 0.01 | 3426617 | ||
| CC1MA20-M12 | 0.01~20.00 | 0.01 | 3426618 |