In winter, the temperature is low, and diesel engine cylinder heads are prone to crack leakage. The main reasons are as follows: 1. Add cooling water after starting. After the diesel engine is started, the temperature inside the engine immediately rises. If cooling water is added at this time, the cylinder block and the cylinder head will cool rapidly and cracks will occur due to shrinkage. 2. After shutdown, no cooling water was put. The water in the machine freezes into ice and the volume increases, causing the cylinder block and the cylinder head to burst. 3, long-term operation of the diesel engine, the high temperature inside, put the high temperature water immediately after parking. Can cause hot parts to encounter cold air and crack. 4, when the diesel engine is running, the cooling water is insufficient or the temperature of the water tank casserole is too high, suddenly adding cooling water. Cooling and shrinkage of the cylinder block and cylinder head can also cause cracking. 5. Use the decompressor to stop the machine, so that the high temperature cylinder head suddenly encounters cold air and causes cracking. To prevent the cracking of various cylinder blocks and cylinder heads, there are the following methods: 1. Before starting the diesel engine, warm water should be added to the water tank, and hot water should be poured 2~3 times during the winter season. The water flowing out of the drain valve is about 30~50. It is better to start at °C. 2. When the diesel engine runs for a long time, it should wait for about half an hour after the engine is stopped. When the engine temperature drops to 40~50°C, the cooling water should be released. After the water is released, it is best to use a thin wire to open the water valve to prevent the sediment from blocking the drain valve. 3, when the diesel engine runs overheated and there is a serious shortage of water, the diesel engine should be idled at a low speed for 10 to 15 minutes, and then slowly add cooling water.
Feature
Accurate pacing pulse recognition and automatic analysis
Manual, automatic, rhythm, and storage modes
Freezing function: 12 seconds electrocardiogram before and after freezing for back printing
Automatic mode: Review the electrocardiogram 10 seconds before printing, fast/save printing paper
Storage mode: Display parameters and diagnosis are not printed, and electrocardiogram is stored for playback.
AC/DC dual-purpose, built-in large container rechargeable lithium battery
Wide voltage can adapt to 75-265V,50/60Hz AC power supply
12 lead waveform display and 250 case storage (SD card is scalable )
USB and RS232 communication interfaces (ECGNET ECG management software can be selected)
USB host interface supports network transmission, external U disk and USB printer (optional)
High-accuracy thermal printing mechanism, supporting 210/215mm roll paper or 210mm folding paper
Resting ECG
Resting Ecg,Ecg System,Resting Ecg System,Portable Ecg Machine
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