Short Description

The ERMA Hand Refractometer with AdBlue/Urea Scale 0–40% is a portable optical instrument designed for quick checking of urea concentration in AdBlue® / Diesel Exhaust Fluid (DEF) used in automotive SCR systems. It is suitable for automobile workshops, diesel service centres, fleet maintenance, commercial vehicles and AdBlue quality-control applications.

The handheld design requires only a few drops of sample and provides a direct optical reading through the eyepiece. The supplied instrument is intended specifically for AdBlue/urea concentration checking, rather than general sugar testing.

Key Features

• AdBlue/Urea Scale: 0–40%
• Handheld optical refractometer
• Designed for AdBlue / DEF / urea solution
• Suitable for automotive industry applications
• Quick few-drop measurement
• Easy-to-read optical scale
• Adjustable calibration
• Focus-adjustable eyepiece
• Compact and portable
• No battery required
• Durable metal-body construction
• Suitable for workshop and field testing
• Useful for routine AdBlue quality checks

Technical Specifications

*Confirm ATC against the exact supplied ERMA model before publishing it as a guaranteed specification.

What is this Refractometer Used For?

This refractometer is designed to check the concentration of urea solution used as AdBlue/DEF.

AdBlue/DEF is used in compatible diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems. Checking concentration can help workshops and fleet operators identify potentially diluted, contaminated or incorrectly formulated fluid.

Typical users include:

• Automobile workshops
• Diesel service centres
• Truck service centres
• Bus maintenance facilities
• Fleet operators
• Commercial vehicle workshops
• Agricultural machinery service centres
• Construction equipment service centres
• AdBlue/DEF distributors
• Automotive quality-control laboratories

Applications

🚗 Automobile Industry

• AdBlue concentration checking
• DEF testing
• Urea solution testing
• SCR system maintenance
• Diesel vehicle servicing
• Automotive fluid quality inspection

🚛 Commercial Vehicles

• Trucks
• Buses
• Heavy commercial vehicles
• Fleet vehicles
• Diesel-powered equipment

🔧 Workshops

• AdBlue quality inspection
• Preventive maintenance
• Incoming DEF inspection
• Troubleshooting
• Routine service checks

🏭 Industrial Applications

• Urea-solution production
• AdBlue/DEF quality control
• Manufacturing QC
• Incoming raw-material inspection
• Finished-product verification

How to Use

1. Clean the prism with distilled/deionized water.
2. Dry it with a soft, lint-free cloth.
3. Place a few drops of AdBlue/DEF sample on the prism.
4. Close the transparent cover.
5. Ensure the sample spreads uniformly.
6. Look through the eyepiece toward a suitable light source.
7. Adjust the eyepiece for a sharp scale.
8. Read the value at the light/dark boundary on the AdBlue/Urea scale.
9. Clean the prism immediately after measurement.

Calibration

For best results, calibrate the instrument according to the manufacturer's instructions before routine testing.

Recommended procedure:

• Clean and dry the prism.
• Apply the specified calibration/reference liquid.
• Close the sample cover.
• View the scale.
• Check the reference point.
• Adjust the calibration screw if required.
• Clean the prism before testing the actual sample.

ATC – Automatic Temperature Compensation

If the supplied model is the ATC version, Automatic Temperature Compensation helps compensate for the effect of temperature on refractive-index measurements.

ATC is particularly useful when measurements are performed under varying ambient conditions. However, proper calibration and clean sampling remain important for reliable results.

Advantages

✔ 0–40% AdBlue/Urea Scale

Provides a dedicated range for checking urea solution concentration.

✔ Fast Testing

Provides a quick optical reading without complicated instrumentation.

✔ Few-Drop Sample

Only a small quantity of AdBlue/DEF is required.

✔ Portable

Convenient for workshops, service centres and field applications.

✔ No Battery Required

Traditional optical operation does not require an electrical power source.

✔ Easy Operation

Simple sample application and direct visual reading.

✔ Adjustable Calibration

Allows routine calibration according to the instrument's instructions.

✔ Durable Construction

Metal-body construction is suitable for regular workshop use.

Typical Package Contents

Depending on the exact supplied ERMA model, the package may include:

• 1 × ERMA Hand Refractometer
• 1 × Protective storage/carrying case
• 1 × Calibration screwdriver
• 1 × Sample dropper/pipette
• 1 × Cleaning cloth
• 1 × User manual

Product Highlights

ADBLUE / UREA SCALE: 0–40%
AUTOMOTIVE APPLICATION
HANDHELD OPTICAL REFRACTOMETER
FEW-DROP SAMPLE
ADJUSTABLE CALIBRATION
FOCUSABLE EYEPIECE
PORTABLE DESIGN
NO BATTERY REQUIRED
IDEAL FOR WORKSHOPS & FLEET MAINTENANCE