Features
Intelligent: This industrial PH meter adopts high-precision AD conversion and single chip microcomputer processing technologies and can be used for the measurement of the PH values and temperature, automatic
temperature compensation and self-checking.
Reliability: All the components are arranged on one circuit board. No complicated functional switch, adjusting knob or potentiometer arranged on this instrument.
Double high impedance input: The latest components are adopted; The impedance of the double high impedance input can reach as high as l012Ω. It has strong interference immunity.
Solution grounding: This can eliminate all the disturbance of the ground circuit.
Isolated current output: Optoelectronic isolating technology is adopted. This meter has strong interference immunity and the capacity of long-distance transmission.
Communication interface: it can be easily connected to a computer to perform monitoring and communication.
Automatic temperature compensation: It performs automatic temperature compensation when the temperature is within the range of 0~99.9℃.
Water proof and dust-proof design: Its protection grade is IP54. It is applicable for outdoor use.
Display, menu and notepad: It adopts menu operation, which is like that in a computer. It can be easily operated only according to the prompts and without guidance of the operation manual.
Multi-parameter display: The PH values, input mV values (or output current values), temperature, time and status can be displayed on the screen at the same time.
| Measuring range: PH value: 0~14.00pH; division value: 0.01pH |
| Electric potential value: ±1999.9mV; division value: 0.1mV |
| Temperature: 0~99.9℃; division value: 0.1℃ |
| Range for automatic temperature compensation: 0~99.9℃, with 25℃ as the reference temperature, (0~150℃ for Option) |
| Water sample tested: 0~99.9℃，0.6Mpa |
| Automatic temperature compensation error of the electronic unit: ±0 03pH |
| Repeatability error of the electronic unit: ±0.02pH |
| Stability: ±0.02pH/24h |
| Input impedance: ≥1×1012Ω |
| Clock accuracy: ±1 minute/month |
| Isolated current output: 0～10mA(load <1 5kΩ), 4～20mA(load <750Ω) |
| Output current error: ≤±l％FS |
| The data storage capacity: 1 month (1 point/5 minutes) |
| High and low alarm relays: AC 220V, 3A |
| Communication interface: RS485 or 232 (optional) |
| Power supply: AC 220V±22V, 50Hz±1Hz, 24VDC(optional) |
| Protection grade: IP54, Alluminium shell for outdoor use |
| Overall dimension: 146 (length) x 146 (width) x 150 (depth) mm; |
| dimension of the hole: 138 x 138mm |
| Weight: 1.5kg |
| Working conditions: ambient temperature: 0~60℃; relative humidity <85％ |
| It can be equipped with a 3-in-1 or 2-in-1 electrode. |
PH is a measure of the hydrogen ion activity in a solution. Pure water that contains an equal balance of positive hydrogen ions (H +) and negative hydroxide ions (OH -) has a neutral pH.
● Solutions with a higher concentration of hydrogen ions (H +) than pure water are acidic and have a pH less than 7.
● Solutions with a higher concentration of hydroxide ions (OH -) than water are basic (alkaline) and have a pH greater than 7.
PH measurement is a key step in many water testing and purification processes:
● A change in the pH level of water can alter the behavior of chemicals in the water.
● PH affects product quality and consumer safety. Changes in pH can alter flavor, color, shelf-life, product stability and acidity.
● Inadequate pH of tap water can cause corrosion in the distribution system and can allow harmful heavy metals to leach out.
● Managing industrial water pH environments helps prevent corrosion and damage to equipment.
● In natural environments, pH can affect plants and animals.
