<p class="normalPara" style="margin-bottom: 11px;"><span style="font-size:16px;"><span style="line-height:2;">The BSQ-MINI water quality transmitter module is an optimized version of the previous BSQ-2019 model.Mainly used for transmitting signals from water quality monitoring sensors. They amplify the weak signals output by the sensors and transmit them via 4-20mA, RS485, or TTL levels, facilitating communication with PLCs, configuration software, microcontrollers, etc.</span></span></p>

■ Technical performance

● Stability: ±2×10-3FS/24h

● Matching electrode: Standard 1.0cm-1 ABS plastic platinum black electrode; other specifications optional;

● Electrode thread: 1/2"NPT

● Contact length: Insert type standard 5 meters; quick-connect type standard 1.5 meters;

● Medium temperature: 0 ~ 50℃

● Electrode withstand pressure: 0.5Mpa

● Temperature compensation element: NTC10K

● Temperature compensation: Automatic compensation based on 25℃

● Output current: 4~20mA/optional; 1-5V/2-10V; 4-20mA corresponding range can be set, default is 0~full scale;

● Relay output: High/low frequency relay alarm output can be set, contact current 24V/3A, 220V/2A; (passive dry contact);

● Power supply: DC12V-28V, 24V current <0.1A;

● Environmental conditions: (1) Temperature 0~50℃ (2) Humidity ≤85%RH

● Dimensions: 122×72×45mm (L×W×H);

● Installation method: Rail installation;

■ Resistivity - Technical Specifications

● Measurement range: 0~18.25MΩ;

● Accuracy: 2.0%/FSD;

● Stability: ±2×10-3FS/24h;

● Matching electrode: Standard 0.05cm-1 316L stainless steel electrode, optional insert type or quick-connect type;

● Electrode thread: 1/2"NPT;

● Cable length: Insert type standard 5 meters; quick-connect type standard 1.5 meters;

● Medium temperature: 0~50℃;

● Electrode withstand pressure: 0.5Mpa;

● Temperature compensation element: NTC10K;

● Temperature compensation: Automatic compensation based on 25℃.

● pH (Acidity) - Technical Specifications:

● Measurement range: 0~14.00;

● Accuracy: 2.0%/FSD;

● Stability: ±2×10-3FS/24h;

● Matching electrode: Online pH electrode ABS two-composite electrode (2-wire system);

● Cable length: Standard 5 meters;

● Electrode thread: 3/4NPT pipe thread;

● Temperature compensation element: NTC10K;

● Medium temperature: 0~50℃;

● Temperature compensation: Manual or automatic compensation based on 25℃;

● Calibration method: Three-point calibration, pH4.00, pH6.86, pH9.18.