High Precision Charging Scale Manufacturer,Supplier and Exporter in India
Product Code : EL-RACLE-12785
Jlab Export is a leading High Precision Charging Scale Manufacturer,and suppliers in India
Domestic refrigerators and small cabinets on R-600a or R-290 run on a small hydrocarbon charge, so the gas is weighed in rather than judged by pressure. This charging scale is built for those two refrigerants. It weighs up to 5000 g with a sensitivity of 1 g. A hex adapter fixes the refrigerant cylinder to the scale, and the charging hose fits a 1/4 in SAE male flare with a check valve.
Specifications
| Refrigerants | R-600a and R-290 |
| Capacity | 5000 g |
| Sensitivity | 1 g |
| Fitting | 1/4 in SAE male flare with check valve |
| Cylinder adapter | Hex adapter, included |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Practicals in Charging by Weight
In the RAC lab, trainees charge a domestic refrigerator by weight. They read the target charge in grams from the nameplate and evacuate the system with the Small Vacuum Pumps. A can of R-600a Refrigerant goes on the scale and connects to the unit through the Hydrocarbon Manifold Gauges. Students note the starting weight, open the valve and close it once the reading has fallen by the nameplate charge.
A second exercise shows why grams matter. Students leave a unit a few grams short, run it and log the suction pressure and evaporator temperature, then finish the charge and repeat the readings. The same steps apply to propane units with a can of R-290 Refrigerant. Both gases burn, so the bench must be ventilated and kept free of flames and sparks.
Frequently Asked Questions
Why charge R-600a and R-290 systems by weight?
Hydrocarbon systems hold a small charge, and the right amount is printed on the nameplate in grams. Pressure readings shift with room temperature and load, so they cannot show an error of a few grams. Weighing the refrigerant in gives the nameplate charge directly.
What capacity and sensitivity does this scale have?
It weighs up to 5000 g and responds to a change of 1 g. That covers a refrigerant can or small cylinder on its adapter, with a gram-level reading for the small charges of domestic hydrocarbon units.
How is the refrigerant cylinder held on the scale?
A hex cylinder adapter comes with the scale and fixes the cylinder to it. The charging hose connects to the 1/4 in SAE male flare fitting, where the check valve stops refrigerant flowing back.
Can I use it for HFC refrigerants?
This scale is specially designed for R-600a and R-290. HFC charges for air conditioners and commercial plant usually come from heavier cylinders, which suit a larger platform such as the Wireless Refrigerant Charging Scale.
What safety steps apply when charging hydrocarbons?
R-600a and R-290 are flammable. Charge in a ventilated area with no flames or sparks nearby, leak test the circuit before charging, and keep the cylinder valve shut whenever the hose is off.
Other Hydrocarbon Service Items
- Combustible Gas Recovery Machine
- Combustible Gas Detector
- Compressor (domestic R-600a compressor)
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Last updated: 5 November 2026
