PHG-2091AX industrial PH meter developed by our company. 2091 series intelligent online chemical analyzers strong environmental adaptability 、clear display、Simple operation and excellent test performance make it very high cost performance and can accurately measure the solution pH and temperature of Can be widely used in thermal power, chemical fertilizer , metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water solutions in pH the continuous monitoring .
Adopt high-performance CPU chip, high-precision AD conversion technology and SMT chip technology, complete multi-parameter measurement, automatic temperature compensation, automatic range conversion, instrument self-check, high precision and good repeatability.
Single board structure, only one circuit board, no complicated function switches, adjustment knobs and potentiometers.
The current output and alarm relay adopts photoelectric coupling isolation technology, which has strong anti-interference ability and realizes remote transmission.
The alarm signal is isolated and output, the upper and lower alarm limits can be set arbitrarily, and the alarm hysteresis can be cancelled.
Isolated current output and RS485 or 232 communication interface; the current corresponds to the upper and lower output limits of the PH value.
The temperature curve of the standard solution is pre-stored, and the PH value of the standard solution at the set temperature is automatically converted during calibration
If the user uses the standard buffer incorrectly during calibration, the instrument will automatically prompt.
-Display mode: Chinese menu, high brightness
-Measurement range: 0～14.00PH, 0～99.9℃, -1999～+1999mV
-Temperature compensation range: Automatic: 0～99.9℃, Manual: 0～99.9℃
-25°C conversion: pure water and ammonia-added ultrapure water are converted at 25°C
-Resolution: 0.01PH, 0.1mV, 0.1℃
-Accuracy: ±0.05PH, ±1mV, ±0.3℃
-Input impedance: ≥ 10 12 Ω
-Galvanic isolation output: 4 ~ 20mA (load <750 Ω);
-High and low alarm relay: AC220V, 3A, alarm signal isolated output
-Communication interface: RS485 or 232 (optional)
-Power supply: AC220V±22V, 50±1Hz, DC24V
-Protection level: IP65
-Working conditions: Ambient temperature: 0～60℃ Relative humidity: ≤90%
-Power-off retention:>10 years
-Weight and size: 0.8kg; Dimensions: 9 6 (length) × 9 6 (width) × 155 (depth) mm, opening size: 92 × 92 mm;
-Secondary meter installation method: opening type; electrode installation method: flow type, submerged type, flange type, pipeline type