➤ Product Introduction
The TUS-855 Standard Solution Circulation and Sampling Device is a portable, vehicle-mounted "standard solution" circulation (maintenance) device that not only fully homogenizes turbidity standard solutions but also delivers the solution directly to the instrument under test/calibration, reproducing the error between the turbidity background and the reference material during actual product operation, providing on-site metrology service capability.
It uses a high-strength portable protective instrument case as the carrier to ensure instrument stability. A timing-controlled magnetic stirring device is embedded inside to maximize the uniformity of the turbidity solution.
Considering turbidity meters of different brands that use flow-through or immersion methods, it is also equipped with a liquid delivery pump that can be directly connected to the piping of the instrument under test for circulation.
The built-in high-power configuration is equipped with a lithium battery, and the system is composed of technologies such as battery management and variable frequency speed control, making it a rare mobile tool-based device for turbidity product verification in both domestic and international markets to date.
➤ Main Performance Features
● Built-in lithium battery mobile vehicle-mounted standard solution circulation device, convenient for use in various applications;
● Lithium battery power supply system, capable of continuous operation for approximately 5 hours on a full charge;
● Built-in timing and speed-adjustable homogenization device, also incorporating extraction and circulation functions;
● Built-in variable frequency power device, providing standard solution delivery function, accommodating various turbidity meter types;
● Equipped with variable frequency flow rate adjustment function, with digital indication of turbidity solution preparation rate;
● Equipped with a flow indicator to directly read the standard solution delivery flow rate;
● Made of purification engineering materials, with multiple connection methods including ferrule-type, quick-connect, barb-type, and threaded;
● High-strength protective instrument case with built-in pull handle and casters, convenient for on-site operation and mobility;
● "Zero turbidity water preparation" and "turbidity circulation device" form a systematic pairing for on-site turbidity metrology.
➤ Main Technical Parameters
| Instrument Name | Standard Solution Circulation Device |
| Instrument Model | TUS-855 |
| Instrument Type | Portable (vehicle-mounted) |
| Standard Solution Volume | 2L |
| Sample Delivery Head | 2 meters |
| Operating Temperature | (5～35)℃ |
| Power Supply | 24V/2A charger |
| Battery Capacity | 5200mAh |
| Storage Environment | Temperature (-10～60)℃ Humidity ≤85%RH (non-condensing) |
| Connection Method | 6mm/10mm rigid tubing, flexible tubing, threaded, etc. |
| Instrument Dimensions | Height × Width × Depth: 610 × 440 × 250mm |
| Total Weight | ＜15kg |
➤ Typical Applications
● Suitable for evaluation and metrology of turbidity instruments in laboratory and online scenarios;
● Suitable for calibration and metrological inspection of turbidity products in industrial field applications;
● Suitable for calibration and metrological inspection of suspended solids products in laboratory and application field scenarios.
