There are analog dials, there are digital scanners and then there are classic scanners – each better than the previous. All these dials and scanners are used in modern aircraft to provide engine related information to the pilot(s). Let’s say as a pilot flying an aircraft, you wanted to know the Exhaust Gas Temperature (EGT). You could do it the old-fashioned way by installing an analog dial EGT gauge or, you can do it the modern way by installing a digital scanner. A typical scanner (depending on its sophistication), is paired with one or more sensors / probes e.g. EGT and CHT probes. Each of these sensors or probes in turn, is plugged into different parts of the aircraft engine. These sensors (or probes) send back data to the scanner. The scanner displays the data on a small screen. Also, a scanner (again depending on its level of sophistication), may also have buttons on the face-plate to facilitate menu selection. Classic scanners as manufactured by J.P. Instruments of U.S.A, represent State-of-the-art technology and most of their models are capable of audio-visual indicators. The alarm is triggered when incoming data is at variance with factory set parameters - for example (depending on the scanner), low RPM or low fuel or high temperature and so forth. Generally, most pilots/aircraft owners tend to buy a classic scanner when they need to replace an existing analog gauge. Instead of replacing it with another analog gauge, they upgrade to a classic scanner. The J.P. Instrument manufactured Classic Scanner is a small convenient package with an even more convenient price tag. It was first introduced 20 years back and has since been continuously upgraded. Over the years it has proved its reliance, accuracy and durability. Economical to buy and easy to install and use, the Classic scanner has large red LED display that makes it very easy to read in all weather and light conditions. Flawlessly accurate, the Classic Scanner is paired with JPI’s famous super accurate fast-response Probes & Sensors. The Scanners are FAA TSO approved (Aerospace Standard AS 8005 and RTCA Documentation DO160A) and comes with a one-year limited warranty. The J.P.I. Classic Scanner comes equipped with a ‘dimming’ switch located on the top of the scanner. Each press alternates between bright and dim. The EGT – CHT classic scanner has a hole on the bottom of the scanner. The pilot can use a screwdriver to easily increase the number channels scanned (up to 8) in an Aircraft Engine Monitor. Different models have functionality and features depending on the speciality of that particular scanner. For example, in the case of above mentioned EGT-CHT classic scanner, the pilot can alter the indexing rate. This model also comes equipped with a visual alarm that is triggered at 450°F (for CHT) and 1650°F (for TIT). Knowing that the scanner will alert the pilot in case of any abnormality, the pilot needs no longer watch the EGT – CHT and instead, can enjoy the flying. For more information on Classic Scanners, please visit: https://www.jpinstruments.com/shop/classic-scanner/
0 Comments
If you have purchased or are thinking of purchasing the J.P.I. Engine Data Manager EDM 760 for your aircraft and want to know more about its features and operation, you’ve come to the right place. To begin with, the 760 series engine data management is one of the finest engine monitoring instruments available for piston engine aircraft. The J.P.I. EDM 760 system for aircraft is as good as a personal flight engineer and once installed, will keep working in the background watching over the aircraft engine(s) while you concentrate and enjoy flying the aircraft. The EDM 760 System and its advantage to your aircraft: The EDM 760 connects to the aircraft engine via multiple sensors. These sensors pickup up the engine data and transmit it via wires to the EDM unit. The EDM unit in turn, displays the data as numbers or coloured graphics on the unit’s LCD screen. Furthermore, it compares the data with pre-fed upper and/or lower limits and will alert the pilots via audio visual indicators if data from any part of the aircraft engine falls below or exceeds the expected range. The pilot can therefore enjoy the flying rather than having to constantly scan a bunch of analog dials. Additionally, the EDM 760 system will monitor the aircraft engine three times a second. As a human, you may miss it and not notice a problem beginning to happen, but the EDM 760 will not miss any discrepancies in engine performance. Here’s how the J.P.I. EDM 760 works: First, it collects data and displays it for the pilot in a useful way. For example, as a pilot, you can monitor the engine temperatures and voltages, adjust the fuel air mixture and diagnose engine malfunctions. The EDM 760 consists of two clusters of bar graphs one for the left Single Engine Monitors and one for the right central. Each of these will provide the exhaust gas temperature (EGT) bar graph and the height of each bar in the graph represents oil temperature or turbine Inlet temperature (TIT), depending on the options installed in your aircraft. These bar graphs enable the pilot to see subtle changes in temperatures being displayed. The EDM 760 has two buttons on the front panel both of which; control all functions of the EDM 760. On the left side is the step button and on the right is the lean find button. One minute after the EDM 760 is turned on it will automatically index through all parameters. Tapping the step button will stop the automatic scan and always take you into the manual indexing mode through which, the pilot can observe each parameter value for as long as they want. To begin or resume automatic indexing they only need to tap lean find and then tap step to switch between the percentage view and the normalized view. If the EDM 760 and EDM 900 that you’ve purchased has the fuel option installed, then the unit uses the known quantity of fuel aboard the aircraft to keep track of all fuel consumed fuel remaining in the tanks. It also calculates the endurance on a total aircraft basis and so forth. For more information, please visit: https://www.jpinstruments.com/shop/edm-760/ The EDM 790 manufactured by J.P. Instruments, U.S.A. is perhaps the best Engine Data Management system that money can buy for under US 10K for 4 or 6-cylinder aircraft engine – and this also includes the transducers. If you are looking for the best deal for a twin piston engine-monitoring instrument in the market, look no further than the awesome EDM 790. It has been TSO’d for quality and is considered as the Flight Engineer and Maintenance Manager of your aircraft. Covers all 29 critical parameters Your twin engine aircraft has 29 critical parameters that ideally require constant monitoring – and you know how tough it can be. The EDM 790 does it for you! Equipped with the latest hardware and software technology, the EDM 790 will monitor all 29 critical parameters of your aircraft engine and it does this 4 times a second! Moreover, it has a linearized thermocouple accuracy that is better than 0.1 percent or 2 F° and this has been verified and tested by the FAA. The EDM 790 never sleeps From the moment the pilot switches on the aircraft engines, the EDM 790 via the sensors will keep an eye for you on all the critical parts of your aircraft engine. Each and every one of them is automatically checked four times every second. No matter which page of data you might currently be looking at, the EDM 790 continues to work in the background running checks on all 29 critical parameters. EDM 790 accuracy has been verified and tested by the FAA. The EDM 790’s linearized thermocouple accuracy is simply the best in the market - there is nothing in the aviation market that compares to J.P.I EDM 790’s linearized accuracy. The EDM 790 is simplicity personified There are two buttons on the faceplate and that is all it takes to programme the EDM 790. The pilot can also access all the functions via these same two buttons. Leaning is accomplished using the patented LeanFind™ procedure. Also, with the new EDM 790, the ground crew has substantially more diagnostic information available. Features and Specifications of EDM 790 include: 1.Hardware and software assisted aircraft engine diagnostics covering the entire aircraft. Error detection includes display of specific error code. 2.Easy-to-use front panel 2-button programming. 3.Twenty-nine parameters including EGT Differential, Alternator Voltage, Fuel Flow and Shock Cooling are checked 4 times a second. 4.Includes variable scaling of EGT Bar Graph. 5.The patented LeanFind™ Mode automatically identifies the first and last cylinder to peak. 6.The PeakFind™ with quick responding probes automatically captures the EGT or TIT peak value. 7.Data Port for easy downloading of data to any compatible external gadget. 8.The EDM 790 includes a complete fuel flow system and is the only FAA approved graphic Aircraft Engine Monitors to do so. 9.Accuracy in temperature detection is ONE degree (even for EGT). 10.The EDM 790 is paired with JPI’s “grounded” fast response probes. 11.Each and every cylinder is tested for cooling rate and shock cooling. 12.The EDM 790 also features a “Normalize Mode”. This helps in trend monitoring and for accuracy, bars are in 10o increments. 13.This EDM features alpha-numeric scanning display of 29 critical parameters. 14.EDM 790 and EDM 930 has been TSO’d for reliability and quality with FAA, and includes STC approved Fuel Flow. 15.Comes with a 3-year warranty. For more information, please visit: https://www.jpinstruments.com/shop/edm-790/ |
AuthorJ.P.Instruments was founded in 1986 in Huntington Beach, California, USA. Its founder, Joseph Polizzotto, is now the current CEO. Archives
May 2019
Categories
|