Professional pH measuring device for coolants in electric, hybrid, fuel cell, and internal combustion vehicles

Precise coolant analysis for modern thermal management systems

With the PHM 01_LR, Leitenberger offers a professional pH meter for testing coolants in modern vehicles. The device enables fast, precise, and reproducible determination of the pH value of coolant mixtures, helping workshops to objectively assess the actual condition of the coolant.

While fixed replacement intervals were common in the past, modern thermal management systems require condition-based maintenance. Especially in electric vehicles, hybrid vehicles, and fuel cell vehicles, high-quality special coolants are used, the replacement of which incurs significant material costs. With the PHM 01_LR, workshops can make informed decisions as to whether a coolant change is actually necessary.

Why measure the pH value of coolants?

The pH value is one of the most important indicators of the chemical condition of a coolant.

New coolants typically have a slightly alkaline pH value between approximately 7.5 and 9.5. These alkaline properties reliably protect aluminum, steel, copper, and other cooling system materials from corrosion.

However, during operation, the chemical properties of the coolant continuously change. Additives are consumed, corrosion protection decreases, and the pH value drops. The coolant becomes increasingly acidic and loses its protective effect.

Regular coolant testing makes it possible to detect critical changes early and prevent costly consequential damage to the thermal management system.

Why is coolant testing particularly important for electric vehicles?

The demands on the thermal management of modern electric vehicles are continuously increasing.

Batteries, power electronics, chargers, and electric motors only operate optimally within narrow temperature limits. Therefore, electric vehicles have complex cooling systems with multiple cooling circuits and significantly larger coolant volumes than vehicles with internal combustion engines.

In addition, the coolants used often have special formulations and are significantly more expensive than classic antifreeze mixtures.

Unnecessary replacement therefore incurs high workshop and material costs.

With the PHM 01_LR, the actual condition of the coolant can be checked. This allows maintenance work to be carried out as needed and unnecessary coolant changes to be avoided.

Special features of fuel cell vehicles

Specially developed coolants are used in fuel cell systems.

These are sensitive to external influences. Even contact with air can cause the pH value to drop and the coolant to become more acidic, thereby changing its chemical composition.

Regular monitoring of the pH value helps to detect changes early and ensure the long-term functionality of the cooling system.

Advantages of the PHM 01_LR

• Professional pH meter for coolants
• Fast and precise pH measurement
• Suitable for:
  • Internal combustion engines
  • Hybrid vehicles
  • Electric vehicles
  • Fuel cell vehicles
• Automatic Temperature Compensation (ATC)
• Large LCD display with backlight
• Hold function
• Min/Max value memory
• Measurement values can be stored via SD card
• Easy operation in the workshop

Typical application areas

The PHM 01_LR is particularly suitable for:

• Automotive workshops
• Authorized workshops
• Independent workshops
• Manufacturers and development departments
• Testing centers
• Service providers for electric vehicles
• Maintenance of thermal management systems
   

Technical Data

• Measurement range: 0.00 to 14.00 pH
• Resolution: 0.01 pH
• Accuracy: ± (0.02 pH + 2 digits)
• Temperature compensation: Automatic or manual / 0–60 °C
• Display: Large LCD with green backlight
• Power supply: 9-V battery
• Dimensions: 177 × 68 × 45 mm
• Weight: approx. 489 g
  

Your advantages at a glance

The PHM 01_LR supports workshops in the economical and professional maintenance of modern cooling systems.

By quickly determining the pH value, coolants can be objectively assessed and unnecessary replacements avoided. At the same time, regular checks help to detect corrosion damage early and extend the service life of cooling systems.

Especially for electric and fuel cell vehicles, where high-quality special coolants are used, the PHM 01_LR helps to reduce maintenance costs while ensuring the operational safety of the vehicles.

Scope of delivery

• PHM 01_LR
• Calibration certificate
• Operating instructions
• Buffer solutions pH 4.00 and pH 7.00
• Transport case

Article no.: PHM 01_LR (100147_1)