PH-8250-type apparatus main technical parameters 1. Measuring range: 0.00 ~ 14.00PH, dividing the value 0.01PH; 2. Potential value: -1999 ~ +1999 mv, dividing the value 0.1mv; 3. Temperature: 0 ~ 99.9 ℃ , dividing the value of 0.1 ℃; 4. Accuracy: ± 0.05PH; 5. Temperature compensation: automatic temperature compensation, compensation range 0 ~ 99.9 ℃, compensation benchmark 25 ℃, temperature compensation element NTC10KΩ; 6. Signal output: 4 ~ 20mA Isolated, working range can be set, maximum load 750Ω; 7. Display: use 12864 dot matrix backlit LCD display, English menu prompts, with the screen display PH value / ORP value, corresponding to the mv values, the current temperature value and date clocks and other parameters, the effective display size: 54 × 36 (mm); 8. Electrode configuration: PH / ORP combination electrode, 6 'pipeline threaded connection, wire length is 5m, maximum pressure 0.6Mpa; 9. PH value of the upper and lower limits alarm settings and output: PH value of the instrument has upper and lower alarm settings, exceeds or falls below the set value providing switching contact output, contact capacity 220VAC/6A; 10. RS-232C communication output; This instrument has a standard RS -232C serial port communication output, with RS-232C interface with intelligent connected devices (such as my company DY-301B type printer) to realize the transmission of measurement data and print records; 11. instrument conditions: Power supply: AC220V ± 10% 50Hz Ambient temperature: 0 ~ 50.0 ℃ Relative humidity: ≤ 85% 12. electronic unit Dimensions: Panel Size: 96 × 96 (mm) hole size: 91 × 91 (mm) Depth: 100 (mm) 13. product testing based on: JB/T6203 Conductivity Meter: CM-230 CM-230 (X) CM-230K (LCD) CM-230K (LED) DDG-230 DDG-8250 DDG-3023A DDG-403B (LCD-A) DDG -403B (LCD-AA) DDG-403B (LCD-AC) DDG-403B (LCD-D) DDG-403B (LCD-D) DDG-403B (LCD-D) 0-20mScm DDG-403BA (dual detector) resistor rate meter: DZG-303A (X) type DZG-303A (DK) DZG-303A (DX) type DZG-303B (LCD-A) DZG-303B (LCD-AA) type DZG-303BA (single detector) type DZG- 303BA (double detection) type DZG-306B (LCD) DZG-306BA DZG-8252 DZG-8251 PH / ORP meter: DDG-403B PH-8250 Model PH-8251-type PH-A type PH-B-type Ro-403 transmitter device: DDG-3023 (Custom) Conductivity Transmitter DDG-3023 (Custom) resistivity transmitter PH-A type (custom) PH ORP Transmitter SC (custom) Flow Transmitter DZG-306B type (custom ) Transmitter Our company specializes in wholesale conductivity meter, resistivity meter, transmitters, PH / ORP meter, model complete, welcome to buy, telephone consultation.