PH meter PHG-217D

PH meter Model: PHG-217D Instrument: Applications:? Apply to the main features of the chemical industry, oil refining, metallurgy, pharmaceuticals, power plants and environmental protection and other fields:? Intelligent instruments, can be displayed simultaneously measure the concentration of pH value, temperature value (℃ ) or temperature (℃) and ORP value? with automatic calculation of slope, automatic temperature compensation and automatic calibration function, PHG-217D type also has automatic cleaning function? with automatic recognition 4.00,6.86,9.18 features three standard solution? With isolated output (4 ~ 20) mADC signal output upper and lower limit output stepless adjustment? with automatic upper and lower alarm function and power data protection? PHG-217D type industrial pH / ORP measurement and control instruments RS-232 and RS- 485 output interface, enabling digitized output of the electronic unit enclosure protection class IP65, prevent water spray and dust into the unit, there are two combinations:?? a) PHG-21D industrial pH / ORP meter or PHG-217D industrial pH / ORP measurement controller (for distance measuring points and instrument more occasions, the maximum distance of 20 m) b) PHG-21D-1 industrial pH / ORP meter or PHG-217D-1 industrial pH / ORP Survey Controller (for short distance measuring points and instruments occasions) supporting the transmitter:? PHGF-27, PHGF-28, PHGF-27B, PHGF-28B transmitter main technical indicators: 1. Measuring range: ORP :( -1800 ~ 1800) mV pH: (0.00 ~ 14.00) pH ?? temperature: (- 10.0 ~ 120.0) ℃ 2. Instrument basic error: ORP: ± 10mV ± 1 word pH: ± 0.05pH ± 1 word Temperature: ? 0.5 ℃ ± 1 word (0.0 ℃ ≤T≤60.0 ℃); other ranges 1.0 ℃ ± 1 word 3. The electronic unit stability:? ± 0.02pH / 24h 4. Electronic unit input impedance: not less than 1 × 1012Ω 5. Electronic unit output current error: ± 1% FS; (maximum load 750Ω) 6. tested water samples Temperature: (0-60) 7. isolated output signal ℃: (4 ~ 20) mADC, maximum load 750Ω 8. output upper and lower limits: pH: at (0 ~ 14.00) pH range, optionally (corresponding to the output current of 4mA ~ 20mA); ORP: in the (-1800 ~ 1800) mV range, optionally (corresponding to the output current 4mA ~ 20mA) 9. PHG-21D type water sample flow (flow-transmitter): Measure the water sample (100 ~ 120) ml / min; water sample pressure: (7 ~ 140) kPa 10. PHG-217D type instrument control accuracy: ± 0.1pH 11. Instrument normal working conditions a) Ambient temperature: (- 5 ~ 50) ℃; b) Relative humidity: less than 90%; c) Power supply: AC voltage (220 ± 22) V, frequency (50 ± 0.5) Hz; d) ambient air non-corrosive gases; vibration had no effect e) the presence of surrounding properties; f) except around the geomagnetic off no electromagnetic interference with other affect performance. 12. Dimensions (L × W × H): 144mm × 144mm × 163mm hole size: 138mm × 138mm 13. Weight: 2.5kg