Active Member
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[China]
Address: 5-6F, Building 8, No.115, Lane 1276, Nanle Road, Songjiang District Shanghai, 201600 China
Contact name:Sherry Xiong
Shanghai Zhaohui Pressure Apparatus Co., Ltd. |
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In-line digital refractometer with short reaction time for
continuous measurement
GND series has the function of automatic temperature compensation
according to the temperature of the tested medium , when the tested
medium temperature changes , the Brix value ( soluble solids )
after temperature compensation is displays and the output changes
accordingly.
Working Principle
The concentration sensor is used to measure the concentration of
the liquid, and the concentration of the solution is converted into
an analog
signal output by optical path analysis by different refractive
indices of the solutions of different concentrations.
Features
◆ Automatic temperature compensation
◆ Lightweight , compact and easy to install on site .
◆ LED display , easy to connect with other devices for automatic
control
◆ Easy to operate , only one transmission line solves power and
data transmission
Applications
◆ Suitable inline real-time monitoring and control of liquid
substance concentration in various industries
◆ Cutting oil , mold release agent , quenching liquid , cleaning
liquid , emulsion in the machining industry
◆ Food , chemical , paper , tobacco , environmental protection
Specification
| Model: | GND15 (Brix) ,GND33 (Brix), GND53 (Brix), GND93 (Brix) |
| Measure Parameters: | Refractive index(nD), Brix, Concentration, Temperature T |
| Measure range: | 0-15% , 0-33% , 0-53% , 0-93% |
| Resolution Ratio: | Brix: 0.01%, nD: 0.00001 |
| Measurement Accuracy: | Brix: ±0.1%, nD: ±0.0001, Brix: ±0.25%, nD: ±0.0025, Brix: ±0.5%, nD: ±0.0005, |
| Measurement Temperature: | 0-120℃(Automatic Temperature Compensation) |
| Operating current: | ≤200mA |
| Display menu: | Refractive index(nD) , Brix%, Temperature (° C) |
| Output : | 4-20mA , RS485 optional |
| Power: | 24V DC |
| Wetted parts material: | Prism: sapphire, Prism stage: SS304 , SS316L (can be customized) |
| Optical source: | LED(the wave length approximate to D line) |
| Max Pressure: | 1MPa |
| Environment Temperature: | 0-40℃ |
| Protection grade: | IP67 |
| Instrument Size: | 120mm*120mm*80mm |
Environmental conditions
◆ Using temperature shall be between 0~ 40℃
◆ Do not put the instrument in a damp place, Maximum average
relative humidity: 95% RH (25℃);
◆ Atmospheric pressure: 80kPa ~ 106kPa;
◆ Places where there is no corrosion or destruction of insulating
gas, steam or dust;
◆ Use the instrument at altitudes below 2000 meters (altitude).
◆ Use the instrument indoor.
◆ Do not change the ambient temperature of the instrument suddenly
◆ Do not use instrument in areas with large amount dust and strong
vibrations
◆ Do not put the instrument in low temperature place
◆ Do not put heavy objects on the instrument
◆ Do not install the instrument In direct sunlight or near the
heating source.
◆ When installing, please pay special attention to avoid the great
impact of the instrument
Breakdowns And Trouble Shooting
If measurement of concentration transmitter is abnormal, please
check input power supply first. If power supply is ok, check if the
measurement window of transmitter has been covered by contamination
or not, and make sure that measurement window can contact solution
well at the mean time. If it is problem of transmitter itself,
please return it to the factory for maintenance.
Caution
◆ Protected from direct rain and snow, the packaged transmitter can
be applied to various modes of transportation, such as water, land
and air transportation.
◆ The packaged transmitter can be stored for more than 12 months
with temperature ranging from -40℃~60℃, and relative humidity less
than 90%
◆ Live plug-in and pull-out should be strictly prohibited under
live working condition, otherwise, it will damage the concentration
and infrared transmitter easily.
Ordering Guide
| Model | Range (%) | Output | Process connection | Electric connection | Accuracy | Other requirement |
| GND | * | * | * | * | * | --- |
| Example: GND-15-4-20mA-3”clamp- 4pins -0.5%- | ||||||
