MGL Avionics Vega EMS-1 Скачать руководство пользователя страница 49 | Manualshive

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Vega EMS-1 Operating Manual

Page 49

Current Sensor

Current Sensors

MGL Avionics Closed Loop Current Sensor

Volts

Voltage measurement range

Up to 32Vdc

Voltage resolution

0.1V

OAT Probe

OAT Temperature Sender type

Semiconductor LM335 (STMicroelectronics)

RTC

Internal battery type

CR2032

8 Operating the alarms

The alarm output can be used to switch an external alarm indicator. The external alarm switch is an open collector
transistor switch to ground with a maximum rating of 0.25A DC. It is possible to wire the alarm contacts of several
Stratomaster instruments in parallel should this be desired. To avoid false activation of the alarms, the alarm function is
only active 10 seconds after the instrument has powered up.

9 Firmware Upgrading

The EMS-1 can be upgraded in the field by connecting the RS232 port to a PC and running the firmware update program.

Note that only the RS232 port can be used to upgrade the firmware.

Please see the Vega firmware upgrading document for more information.

10 Changing the internal battery

The EMS-1 uses an internal battery to supply power to the clock. You will need to replace the internal battery if you find
the EMS-1 looses time when you switch off the main power. This battery is of type CR2032. It is used in many calculators
and similar equipment and is easy to obtain. Remove the 2 securing nuts next to the D15 connector and remove the unit
from its enclosure. The battery holder is located on the circuit board behind the display. Observe correct polarity when
installing a new battery. The side marked “+” will be viewable once the battery is inserted.

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Содержание Vega EMS-1

Страница 1: ...readable color display The EMS 1 light weight small size and high level of functionality makes it an excellent choice for all types of engines The EMS 2 can also interface directly to UL Power engine...

Страница 2: ...al RPM measurement Includes a magneto check function RPM can be displayed in RPM or in percentage Records maximum RPM reached for each channel Fuel Flow Uses RPM 2 Input Single fuel flow measurement F...

Страница 3: ...n measure voltages up to 30V compatible with both 12V and 24V aircraft supplies Contains a programmable low high voltage alarm to automatically detect alternator failures and bad batteries Records max...

Страница 4: ...hic display Backlight can be adjusted in the menu system Rotary Control Up Down Enter Button Press the rotary control during the normal display screens to access the menu system Rotate anti clockwise...

Страница 5: ...rs are displayed then the EMS 1 will alternate the display at 2 second intervals EGT CHT display section The Vega EMS 1 supports up to 4 thermocouples using the internal electronics and up to 12 therm...

Страница 6: ...down to zero when the engine RPM is greater then the HOBBS RPM value as set in the TIMERS SETUP A good use for this function is to set the hours until your next spark plug change or engine inspection...

Страница 7: ...p is the result of reduced energy output from the diminished fuel flow The best operating mixture for aircraft engines is in the vicinity of this peak EGT reading The EMS 1 has a special Leaning mode...

Страница 8: ...RPM The display will show the RPM deviation from when the magneto function was activated Any RPM drops will be displayed as a negative RPM value a positive reading indicates an increase in RPM Switch...

Страница 9: ...Vega EMS 1 Operating Manual Page 9 4 Menu System Press the rotary control button during the normal display mode to enter the menu system Use the rotary control to navigate through the menu system...

Страница 10: ...t Timer View Flight Log Use the rotary control to view the next flight log entry Erase Flight Log Use this function to erase the flight log stored in the EMS 1 FLIGHT Select whether you want the EMS 1...

Страница 11: ...give you increased display resolution Display Min Select the minimum RPM that you want the RPM dial to show This can give you increased display resolution High Alarm This enables or disables the RPM h...

Страница 12: ...s per cylinder A four cylinder automotive four stroke engine would thus generate 2 pulses per revolution A typical Rotax DCDI two stroke engine would generate 6 pulses per revolution The well known Ro...

Страница 13: ...that you want the RPM to correlate to 100 This is only shown if Percent is selected for display Display Max Select the maximum RPM that you want the RPM dial to show This can give you increased displa...

Страница 14: ...for every two revolutions per cylinder A four cylinder automotive four stroke engine would thus generate 2 pulses per revolution A typical Rotax DCDI two stroke engine would generate 6 pulses per rev...

Страница 15: ...ed You can use the K Factor to calibrate your fuel flow sender See the installation section for more details on how to calibrate and install the fuel flow sender Mode Select if you want to measure fue...

Страница 16: ...election between HIGHEST or SCANNING can be selected If HIGHEST is selected then the current highest thermocouple temperature is displayed If SCANNING is selected then the unit will cycle through each...

Страница 17: ...want the temperature to be displayed in degrees Celsius C or degrees Fahrenheit F Data Select the data source of the themocouples Options include internal using the internal thermocouple amplifier an...

Страница 18: ...ssure Setup Mode Select the function for the analog channel Options are PRESSURE TEMP CURRENT or OFF Type Select if you are using a resistive voltage or current pressure sender If the RESISTIVE pressu...

Страница 19: ...e is set to USER then use this menu option to calibrate your pressure sender See section 4 2 3 for more information Label Enter a label to suit your pressure channel so you can identify it easily Unit...

Страница 20: ...from an optional external RDAC unit RDAC Address Select the CAN address of the RDAC unit 4 6 2 Temperature Setup Mode Select the function for the analog channel Options are PRESSURE TEMP CURRENT or O...

Страница 21: ...play resolution Display Min Select the minimum temperature that you want the bargraph to show This can give you increased display resolution High Alarm This enables or disables the temperature high al...

Страница 22: ...l the points have been entered 5 Verify the above calibration by checking the temperature pressure or current display versus the actual applied sender stimulus 4 6 4 Current Setup requires a MGL Avion...

Страница 23: ...the MGL Avionics Closed Loop Current sensor This is best done with the MGL Closed Loop Current sensor disconnected from the main current supplying conductor Gain Adjust the gain factor until the curr...

Страница 24: ...hing of the fuel level display and remaining fuel readout You can also connect a warning lamp to the external alarm output see installation diagram Note that the fuel low level will be displayed as a...

Страница 25: ...vel sender reading at 0 Lt position Move the highlight to this position and wait until the sender reading has stabilized You will see the sender ADC reading at the top This could take up to a minute s...

Страница 26: ...ety factor for an aircraft and a very useful feature for peace of mind during cross county flights Notes on Slope error Sender value is a value determined by the EMS 1 It is used to calculate fuel lev...

Страница 27: ...rgraph is only shown if the current display is disabled Display Min Select the minimum value that you want the volts bargraph to show This can give you increased display resolution The bargraph is onl...

Страница 28: ...e volts low alarm Low Alarm Enter the voltage threshold for when the low alarm must be activated Any voltage below this value will activate the alarm Cal Measure the battery voltage with a multimeter...

Страница 29: ...hes of mercury Display Max Select the maximum pressure that you want the manifold bargraph to show This can give you increased display resolution Display Min Select the minimum pressure that you want...

Страница 30: ...will activate the alarm Filter This function can be used to select the signal filter time constant Selections are NONE FAST or SLOW This selection influences the rate at which your manifold pressure c...

Страница 31: ...bles the current high alarm High Alarm Enter the current threshold for when the high alarm must be activated Any current above this value will activate the alarm High Caution Enter the current value f...

Страница 32: ...onnected from the main current supplying conductor Gain Adjust the gain factor until the current is reading correctly It will be best if a multimeter can be inserted in series with the current supplyi...

Страница 33: ...ements RTC Trim This allows you to adjust a trimming factor that will increase the accuracy of the built in clock SET HOBBS TIME This function allows you to set the engine Hobbs meter to any value Typ...

Страница 34: ...isplayed in decimal fractions or minutes SET MAINT TIME This function allows you to set an engine maintenance timer This timer is set in engine hours and it will count down to zero when the engine RPM...

Страница 35: ...TAX 912iS or UL POWER 4 11 1 ROTAX 912iS Setup The Rotax 912iS ECU can be connected to the EMS 1 either by direct connection or by using the MGL Avionics RDAC CAN 912iS Connect Select if the Rotax 912...

Страница 36: ...CH 3 renamed to Coolant Temp Setup These channels need to be setup accordingly The Rotax ECU transmits various status messages These can be observed in the Rotax 912iS main display pages Rotax 912iS D...

Страница 37: ...Channel 1 FUNCTION TEMP SENDER LM335 LM335 0 DATA RDAC Oil Pressure Analog Channel 2 FUNCTION PRESSURE TYPE RESISTIVE SENDER USER CALIBRATE SENDER POINTS 2 DISPLAY 1 0 0 bar ADC 1 0000 DISPLAY 2 10 0...

Страница 38: ...mBar Red Oil Pressure 0 to 1 5 Bar Red 1 5 to 3 0 Bar Yellow 3 0 to 5 0 Bar Green 5 0 to 7 0 Bar Yellow 7 Bar Red Oil Temperature 50 C Yellow 50 to 110 C Green 110 to 130 C Yellow 130 C Red Fuel Press...

Страница 39: ...grees Fahrenheit F ULPower display screen A dedicated display screen will be shown when the UL Power is selected for the ECU type Alternating Display Area Oil pressure Oil Temperature Fuel Pressure OA...

Страница 40: ...AC can be used to measure CHT EGT and MAP The EMS 1 also supports the ULPower Aux box ULPower recommended settings Oil Pressure max 8 bar 115psi normal 2 to 5 bar 30 75 psi above 2000rpm minimum 0 7 b...

Страница 41: ...Menu 4 12 1 Protocol Format STX Address Message type Length Data payload Checksum ETX STX Start of text 0x02 Address unsigned char 8bit Unit address range 0 255 Message Type unsigned char 8bit Specifi...

Страница 42: ...16 bit RPM 1 value in percentage RPM 2 Unsigned Long 32 bit RPM 2 value RPM 2 Unsigned Int 16 bit RPM 2 value in percentage Analog Channel Type Unsigned Int 16 bits CH4 4 bits CH3 4 bits CH2 4 bits C...

Страница 43: ...Celsius TC4 Signed Int 16 bit Thermocouple channel 4 in Degrees Celsius TC5 Signed Int 16 bit Thermocouple channel 5 in Degrees Celsius TC6 Signed Int 16 bit Thermocouple channel 6 in Degrees Celsius...

Страница 44: ...Setup Miscellaneous Setup Backlight Select this menu option to adjust the backlight brightness Security Setup Select this menu option if you want to password protect the menu system Information This m...

Страница 45: ...Values This menu displays the ADC values of the various sensors 5 Loading factory default settings Press and hold the F1 Up button and rotary control during power up to load the pre programmed factory...

Страница 46: ...er CRC error Try entering new values for the Hobbs meter and Maintenance timer and see if the error message disappears If the error message still persists then it could possibly be a non volatile memo...

Страница 47: ...level input Required input voltage swing less than 1 5V to more than 3 5V Maximum input voltage range 5V to 18V RF noise filter and Schmitt trigger based input Sensor Output Voltage 5Vdc Max 50mA Fuel...

Страница 48: ...EMS 1 has a user sender calibration feature that can be customized for senders not listed above Temperature Sender Input Temperature Sensors VDO Resistive Senders VDO 120 C and VDO 150 C thermistor s...

Страница 49: ...nstrument has powered up 9 Firmware Upgrading The EMS 1 can be upgraded in the field by connecting the RS232 port to a PC and running the firmware update program Note that only the RS232 port can be u...

Страница 50: ...an external 1A fuse is recommended Connect the supply terminals to your aircrafts power supply The EMS 1 can be used on both 12V and 24V without the use of any pre regulators Ensure that the supply vo...

Страница 51: ...Temperatures are considerably lower so most thermocouple cables will work without problems The biggest area of concern should be the connection of the thermocouple cable to the washer This often break...

Страница 52: ...gnoring any high frequency noise signals as long as this is below the detection threshold of about 2 5Vpp Please see dipswitch settings below The input impedance of the rev counter input is approximat...

Страница 53: ...nnected to ground engine block and the other to the RPM input 1 Insert ballast resistor Rotax 914 Connect the rev counter wires blue yellow and white yellow One of the two wires needs to be connected...

Страница 54: ...c ignition system with conventional ignition coil Use the tacho line if your system has such a signal Connect rev counter input of EMS 1 to this line Ensure you have a connection from the EMS 1 ground...

Страница 55: ...allation detects the passing of a magnet suitably fixed to prop flanges or shafts Gear tooth sensor The gear tooth sensor is a popular pickup used on the pre rotation gear of a gyro plane rotor speed...

Страница 56: ...ull up resistor dip switch for the resistive temperature sender input must be in the ON position Connect the green wire to ground and the red wire to the analog input channel Westach Resistive senders...

Страница 57: ...s The black lead is not to be connected and has no function The Red lead from the sensor has to be connected to the positive bus via a fuse or circuit breaker The white lead Output signal has to be co...

Страница 58: ...2 Set your fuel level to 50 Litres 3 Fly your aircraft for a period that you know will use approximately 20 Litres of fuel The exact fuel burn is not important just burn about 20 Litres of your fuel A...

Страница 59: ...Calibration Factors for the MGL Avionics dual range flow sender With jet installed 7000 Recommended for flow rates below 30 Litres hour maximum Without jet installed 1330 Recommended for flow rates a...

Страница 60: ...up to 5V Please note that capacitive senders may exhibit large errors as they are very sensitive to the composition of the fuel used We do not recommend using capacitive senders with automotive fuels...

Страница 61: ...ion a restrictor valve should be inserted into the hose so that only very little gas leakage will be present in a case of failure or if the instrument is removed with the engine running In the case of...

Страница 62: ...ctrical isolation from the current carrying conductor Please see the MGL Avionics Closed Loop Current Sensor manual for connection information 11 12 Datalogger LOG 1 The LOG 1 is a datalogger for the...

Страница 63: ...und terminal any of these terminals and the engine block Do not wire this anywhere else and do not allow any other equipment to use this wire as a current return path 11 14 External RDAC Remote Data A...

Страница 64: ...outed via the engine block 3 White Blue Stripe RS232 Transmit data Firmware upgrading 4 White Black Stripe RS232 Receive data Firmware upgrading 5 Green Analog Input 2 6 Yellow RPM 2 Input Rotor RPM T...

Страница 65: ...Vega EMS 1 Operating Manual Page 65 12 Dimensions...

Страница 66: ...d relevant pilot s license This person has to make themselves familiar with the operation of this instrument and the effect of any possible failure or malfunction Under no circumstances does the manuf...

Страница 67: ...tical Speed Indicator VSI EMS 1 Engine Monitoring System FF 4 Fuel Computer INFO 1 Information Display G Force meter UTC and Local Time Slip Indicator Outside Air Temperature OAT Battery Voltage Curre...

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