• Leitwertmessgerät für Kühlmittel-Lösungen in Hochvolt- und Brennstoffzellen-Fahrzeugen
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Autotestgeräte Leitenberger

Conductivity meter for coolant solutions in high-voltage and fuel cell vehicles

Conductivity meter for coolant solutions in high-voltage and fuel cell vehicles

€437,00 EUR
€437,00 EUR
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  • Coolants currently used in cooling systems of diesel, gasoline, CNG or electric vehicles fulfil the following main tasks:
    • rapid heat dissipation and heat supply (cooling and heating - tempering)
    • Corrosion protection of all wetted parts in the cooling system and thermal management
    • Frost protection and overheating protection
    • Protection against deposits
  • The water added to the coolant concentrate plays an important role. This added water should be demineralized.
  • Insulating operating fluids are increasingly being used in hybrid, electric and fuel cell vehicles. The use of high-voltage components always goes hand in hand with the use of insulating media (oils, coolants, etc.), e.g. insulating POE compressor oils in HV vehicles.
  • Even coolants that are increasingly used in thermal management systems/cooling systems in HV and FC systems have these insulating properties.
  • In thermal management systems of fuel cells and special high-voltage systems, special ready-to-use coolants are used which fulfil another main task.
    • rapid heat dissipation and heat supply (cooling and heating - tempering)
    • Corrosion protection of all wetted parts in the cooling system/thermal management
    • Frost protection and overheating protection
    • Protection against deposits
    • electrically insulating properties (very low conductivity = high insulation)
  • The use of conventional coolants is NOT permitted in the applications mentioned here and will cause irreparable damage.
  • Mixtures of conventional coolants and coolants with very low conductivity [µS/cm] are also not permitted.
  • Ready-to-use coolants are mostly used for this purpose, as (electrically insulating) deionized water is generally not available in workshops. The manufacturer's information must be strictly observed.
  • These coolant mixtures are significantly more expensive than conventional coolant mixtures used in combustion engines, for example. Therefore, it is worthwhile to carry out a detailed and documented measurement of the critical conductivity parameter.
  • If the conductivity of the coolant increases significantly, this can, for example, lead to short circuits within the fuel cell.
  • Therefore, the coolant must be replaced as soon as an increased conductivity is measured in the coolant.
  • Typically, the ion exchanger of the cooling circuit/thermal management system must be replaced at the same time as the new coolant is used.
  • The LWM 01_LR measuring device from Autotestgeräte Leitenberger GmbH is the optimal solution for making an informed decision as to whether and when the coolant and the ion exchanger need to be replaced.
  • The conductivity meter LWM 01_LR is a true all-rounder for checking the quality of coolant solutions.
  • 4 ranges conductivity: 200 µs/2 ms/20 ms/200 ms
  • A 3-point calibration and automatic temperature compensation guarantee high accuracy even with very fluctuating measuring temperatures.
  • All values ​​can be saved directly to the SD card (1 ... 16 GB) (not included)
  • The stored data is saved directly as an Excel file on the SD card (no software is required for evaluation)
  • High precision
  • Large LCD display
  • On request with factory calibration certificate, for LWM 01_LR Medium FCC, 1 measuring point (€ 199.--)
  • Article number: LWM 01_LR ( 100142_1 )
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