ATAGO PAL-91S Digital Hand-held "Pocket" Ethylene Glycol refractometer

The "Pocket" coolant refractometer PAL-91S, easily measure the coolant in brine and other agents of Ethylene Glycol. Measured value displayed digitally. The freezing point of the sample can also be measured and displayed.
Antifreezing solution (coolant) whose main ingredient is ethylene glycol is widely used as mixed in cooling water of car's radiator, as cooling medium for central air - conditioning system, freezer / refrigerator, cooling coil, cooling fixture, and so on. The higher the concentration is, the lower the temperature at which ethylene glycol is frozen is. Therefore, it is needed to adjust freezing temperature of antifreezing solution so that it dose not freeze under a specific operation temperature.

Model PAL-91S
Cat.No. 4491
Scale Ethylene glycol
Freezing point of Ethylene glycol(°C)
Measurement Range Ethylene glycol : 0.0 to 90.0 % (V/V)
Freezing point of Ethylene glycol : 0 to -50°C
Temperature : 10.0 to 40.0°C
Resolution Ethylene glycol : 0.2 % (V/V)
Freezing point of Ethylene glycol : 1°C
Temperature : 0.1°C
Measurement Accuracy Ethylene glycol : ±0.4 %(V/V)
Freezing point of Ethylene glycol : ±1°C
Temperature : ±1°C
Temperature compensation range 10 to 40°C
Measurement Time 3 seconds
Power Supply 2 × AAA Batteries
Dimensions & Weight 55(W)×31(D)×109(H)mm, 100g (Main Unit only)

· PAL-CASE : RE-39409

· STRAP : RE-39410

Patent for Invention Registration No. ZL200310103015.2 (China)
Patent for Design Registration No. ZL03303431.1 (China), 089244 (Taiwan)
Patent Granted in countries around the world


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