IPRM-G-NH3 ammonia concentration inline refractometer is widely used in chemical plants, fertilizer plants, cement plants, ammonia absorption towers and other fields.



Product model IPRM-G-NH3
Measurement item Refractive Index (nD), Brix,temperature.
Measuring range 0.00 – 30 .00 Brix
Resolution 0.01 Brix
Measurement accuracy ± 0.2 Brix
Brix range Temperature corrected 5 – 50°C
Process temperature5 -10°C up to +100°C
Prism Sapphire
Wetted parts Stainless Steel SUS 316L, optional: HastelloyC-276/2205
Power supply 24 V DC
Interfaces 1 output 4 – 20 mA,1 serial output RS485
International Protection class Display surface:IP65 Water resistant
Process pressure Max. 1 MPa (145 psi, 10 bar)
Dimensions and weight length 138 x diam.109mm; approx. 1870g
Cleaning components Options IPRM-US, IPRM-Wiper
Fitting Options IDF/ISO clamp union (1-3 inches), Flange, Compression Fitting G1/4


Measurement Principles

The refraction of light is a phenomenon wherein the direction that light is traveling changes as it passes through different mediums.
Through this phenomenon, we can observe as light’s direction changes and the “bent” appearance of substances even in the seemingly familiar, ordinary places in our day to day lives.
For example, imagine the lens of a pair of glasses and a pool.
When looking through the lens, an object appears larger or smaller than it is in reality.
When standing inside a pool, as you peer downward from the water’s surface, your legs will look shorter than they actually are.
As light moves from medium A (in this case, air) to medium B (lens and the pool’s water), it refracts.
Furthermore, it is known that light’s refraction changes depending on the concentration of a liquid.
The refractive index, which is a value that expresses the degree of refraction, is proportional to the density (mixture ratio) of a component.
Therefore, if there is 10g of sugar contained in 100ml of an aqueous solution and 20g of sugar contained in 100ml of an aqueous solution, the latter will have a higher refractive index value.
This difference in refractive index due to concentration variance has also been confirmed in solutions other than sucrose.
The properties of both the phenomenon known as the refraction of light and differing refractive index depending on concentration, are used as the principles of refractometers.
In addition to measuring the refractive index of a liquid, refractometers also display the concentration, converted from the refractive index.

Product introduction

IPRM-G-NH3 ammonia concentration inline refractometer is a high-precision, temperature-resistant universal product suitable for on-line detection of various solution concentrations below 100°C. The product integrates real-time concentration measurement, digital tube display and signal output (including 4-20mA analog signal and RS485 digital signal output, with 2 switching control signal outputs). IPRM-G-NH3 inline refractometer is commonly found in pipeline bypass installation and small pipe diameter flow cell installation, and other installation methods refer to the corresponding products.


Product features

IPRM-G-NH3 ammonia concentration inline refractometer is widely used in the production process of various types of ammonia aqueous solution concentration detection, can be very convenient to help users in various industries to detect whether the concentration value of ammonia aqueous solution is standard.


Product advantages

● It is not affected by the color, turbidity and viscosity of the material to be measured
● Not affected by bubbles, solid impurities and crystals in the material
● It is not affected by liquid pressure changes, flow changes, turbulent flow phenomena
● No mechanical action measurement, ensure stability and long life
● The detection prism is an optical grade sapphire prism, which is resistant to scratches, scratches and abrasion
● Detection of prism full-plane structure; No reagent consumables are required to run, and low power consumption
● With automatic temperature compensation function, the measurement accuracy is not affected by temperature
● Integrated measurement and display; Support panel and Bluetooth communication settings, view parameters
● 4-20mA/RS485; Built-in alarm, cleaning and switching signal output
● With 15 years of industry application experience, Chuyi Measurement and Control provides customers with the most complete product application solutions
● Chuyi Measurement and Control’s laboratory can provide data modeling and testing services for customers’ specific solutions


Application highlights

IPRM-G-NH3 ammonia concentration inline refractometer is widely used in chemical plants, fertilizer plants, cement plants, ammonia absorption towers and other fields.

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