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KPH500 Ph Sensor Ph Meter Sensor 4-20ma Ph Sensor Probe Meter
Controller Tester
Production Introduction
The PH/ORP meter is a precision meter used to detect the
pH/oxidation-reduction potential of liquids. It is designed with a
microcomputer based on the principle of the primary battery and is
simple to operate and easy to maintain. Not affected by color,
turbidity, colloidal substances, oxidants and reducing agents, it
is suitable for the determination of various media such as clean
water, wastewater, industrial water, chemical reagents, etc., and
is widely used in agriculture, environmental protection and
industry.
The sensor uses a composite electrode, which can eliminate the
influence of the inconstant "K" value,
A long-term, stable and accurate measurement of PH is realized. The
internal structure of the sensor is shown on the right.
Principle of Measurement
PH meter is a potentiometric method to measure the PH of a
solution, so the PH meter works in such a way that, in addition to
measuring the PH of a solution, it can also measure the
electromotive force of a battery.
The PH is the activity of hydrogen ions in a substance, and the PH
is the negative of the logarithm of the concentration of hydrogen
ions.The main measuring components of PH meter are glass electrode
and reference electrode. Glass electrode is sensitive to PH and
reference electrode has stable potential.If you put these two
electrodes of the PH meter together in the same solution, you make
a galvanic cell, and the potential of this galvanic cell is the
algebraic sum of the potential of the glass electrode and the
reference electrode.
The reference electrode potential of PH meter is stable, so in the
case of temperature remains stable, the potential change of the
galvanic cell composed of the solution and the electrode is only
related to the potential of the glass electrode, and the potential
of the glass electrode depends on the PH value of the solution to
be measured, so through the measurement of the potential change,
the PH value of the solution can be obtained.
Features
1. LCD display, Chinese menu operation, stable performance and
strong reliability
2. High-performance operational amplifier, ORP positive and
negative poles are symmetrical, small drift, high accuracy
3. Data is not lost after power off
4. Dual 4-20mA transmission output, relay high and low alarm
control output, RS485 communication
Output
5. Simultaneous display of PH value, temperature value, output
current value, high alarm value, low alarm value
PH/ORP size structure chart
Host size
Sensor size
PH/ORP technical parameters
Class | Performance | PH parameter | OPR parameter |
Host | Measuring range | 0-14PH | -2000mv-2000mv |
Resolution | 0.01PH | 1mv | |
Precision | 2% Calibration accuracy | ||
Operating Temperature | Transmitter 0-65℃ | ||
Material | PVC | ||
Protection Level | I65/IP67(customized version) | ||
Signal Output | 485 communication/4-20mA analog output/support HART protocol/NB.GPRS.LORA Communication (function option) | ||
Supply Voltage | AC220V or DC24V (choose one of the two) | ||
Power Consumption | <1W | ||
Display | LCD Chinese display/TFT color LCD (customized version) | ||
Installation Method | Wall mount | ||
Sensor | Temperature Compensation | Automatic temperature compensation | |
Protection Level | ip68 | ||
Temperature | 0-60℃ | ||
Sensor Material | PVC | ||
Cable Length | Dedicated PH cable, standard 5 meters (extendable) | ||
Operating Temperature | 0-60℃ | ||
Storage Temperature | -10-60℃ | ||
Installation Method | Bracket drop-in installation |
Ordering Information Selection Table | ||
KPH500 | PH/ORP analyzer | |
Power supply | DC24V | |
AC220V | ||
Cable length | 5m | |
10m | ||
15m | ||
20m | ||
Temperature compensation | Sensor without temperature compensation | |
Sensor with temperature compensation | ||
Signal output | Only 4-20mA | |
Only 485 | ||
Also with 4-20mA , 485 signal output | ||
Special custom signal | ||
KPH500-P-DC24V-5m-Sensor without temperature compensation-Only 485 | PH host, with DC24V adapter, cable between host and sensor,The cable length is 5 meters, the sensor is equipped without temperature compensation, and is only 485 communication. | |
KPH500-R-AC220V-10m-Sensor with temperature compensation-Only 485 | Optional ORP host, with 220V adapter, line between host and sensor |
Q&A
Why does the same sample give different readings on two pH meters?
PH measurement errors are due to pH electrode, pH meter host, and
standard buffer.Due to two pH meter calibration conditions are not
the same (e.g., correction made at different times), resulting in
slightly different measurements, so use the same buffer at the same
time.
Two pH meters were used for calibration, and then the pH value of
the sample was determined simultaneously.
What is a composite electrode?
An electrode that combines a pH glass electrode with a reference
electrode is called a pH composite electrode.The main advantage of
the composite electrode is the combination of two
For one, easy to use.The structure of pH composite electrode mainly
consists of electrode bulb, support rod, reference electrode,
reference solution, shell and liquid
Junction, electrode cap, electrode wire, joint, etc.
Contact us
Website: www.kacise.com
Phone: +86-17719566736
Email: sales@kacise.com
Location: Tangyan South Road, High-tech Zone, Xi'an City, Shaanxi
Province, China