Digital Refrigeration System Analyzer Demo2. R410A system operating with a poorly performing TEV.

This demo shows a R410A system operating with a poorly performing TEV. The digital reading is set to update every 5 seconds, and each bar graph shows the change from that reading. If there is a decrease, segments accumulate on the left; increases grow to the right. Each segment on the low side represents 1/4psi of change on the low side, and 1psi on the high side. Notice how the bar graph clears to zero when the digit changes.

The system is fluctuating about 2psi on the low side. The expansion valve is hunting and tracking poorly. With conventional dial gauges, this behaviour would only show as a small movement of the needle, difficult to see unless the needle is closely watched. The large display of the analyzer allows you to quickly spot and diagnose the problem.

The pressure bar graph is patented by Digi-Cool Industries Ltd. and is unique to our products. It shows all the pressure fluctuations never seen before, for quick and accurate diagnostics.