MGL Avionics TC-1 Operating Manual

One to four channel thermocouple temperature display

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Introduction
The TC-1 thermocouple display unit is a 4 channel 2 1/4" instrument that contains all the features necessary to monitor
EGT's and CHT's. The instrument is fully programmable by the user resulting in the most flexible solution available. It
contains 6 different display screens to allow easy customization. The TC-1 can be configured to group EGT's/CHT's to
common settings or each thermocouple channel can be independently setup for temperature ranges as well as alarms
and probe types.
The TC-1's high accuracy is due to it's built in thermocouple linearization curves and cold junction compensation
techniques. Temperature probes can be common J, K or E type thermocouple probes as used in CHT or EGT sensors.
Temperatures can be displayed in degrees Celsius or degrees Fahrenheit from -100ºC to 1200ºC (-148ºF to 2192ºF).
Each channel also offers a programmable high alarm.
The TC-1 also records maximum temperatures reached for each channel in permanent memory.
1 Features
6 different display modes
Supports J, K and E thermocouple probes
Temperatures can be displayed in degrees C or degrees F from -100ºC to 1200ºC (-148ºF to 2192ºF)
High accuracy: Built in thermocouple linearization curves and cold junction compensated
Records maximum temperatures reached for each channel in permanent memory
Standard 2 1/4" aircraft enclosure (can be front or rear mounted)
Rotary control plus 2 independent buttons for easy menu navigation and user input
External alarm output as well as a red LED illuminates when the alarm has been activated
Large backlit graphic LCD with adjustable contrast
Wide input supply voltage range of 8 to 30V DC with built in voltage reversal and over voltage protection
for harsh electrical environments
Light weight design
1 year limited warranty
TC-1
One to four channel thermocouple
temperature display
Operating Manual – English 1.06

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Summary of Contents for MGL Avionics TC-1

  • Page 1 Introduction The TC-1 thermocouple display unit is a 4 channel 2 1/4” instrument that contains all the features necessary to monitor EGT’s and CHT’s. The instrument is fully programmable by the user resulting in the most flexible solution available. It contains 6 different display screens to allow easy customization.
  • Page 2: Main Displays

    During normal mode rotating the rotary control will scroll though the different channels (display mode dependant). 3 Main Displays The TC-1 has up to 6 different temperature display screens. These screens can be setup under the “DISPLAY SETUP” menu option. Display Mode 1: Vertical/Multiple mode...
  • Page 3 TC-1 Operating Manual Page 3 Display Mode 2: Horizontal/Multiple mode Maximum temperature reached indicator Digital temperature display Analog temperature display Alarm set point Display Mode 3: Vertical/Single mode Channel name Analog temperature display Digital temperature Alarm set point display Maximum temperature...
  • Page 4 This display can be accessed by pressing the F1 key during the normal display mode. Pressing the F1 key again will reset the permanent maximum values to the current temperature values. Pressing any other key will cause the TC-1 to return to the normal display mode.
  • Page 5: Menu System

    Select this menu option to adjust the display contrast. 4 Menu System Pressing the rotary control button during the normal display mode will cause the TC-1 to enter the menu system. Use the up/down keys or the rotary control to navigate through the menu system 4.1 Exit Menu...
  • Page 6 Set the time that each of the channels must be displayed for. This menu option is only shown if auto is selected for the display mode. 4.3 TC Setup The TC-1 has 2 different “TC SETUP” menus due to the fact that the TC-1 can be setup to display the thermocouple temperatures in so many ways. “MULTPLE/VERTICAL”, “MULTIPLE/HORIZONTAL”, “SINGLEL/VERTICAL”, “SINGLE/HORIZONTAL”, “NUMERICAL”...
  • Page 7 Select if you are using a K-type, J-type or E-type thermocouple probe for this channel. All probes supplied by MGL Avionics are K-Type. J-types are sometimes used with American made CHT probes. All EGT probes are K-type. E-type probes are seldom used.
  • Page 8: Loading Factory Default Settings

    All EGT probes are K-type. E-type probes are seldom used. 5 Loading factory default settings Pressing and holding the F1 and F2 keys simultaneously during power up will cause the TC-1 to load preprogrammed factory default settings. The following screen will be displayed:...
  • Page 9 The unit should not be cleaned with any abrasive substances. The screen is very sensitive to certain cleaning materials and should only be cleaned using a clean, damp cloth. Warning: The TC-1 is not waterproof, serious damage could occur if the unit is exposed to water and/or spray jets.
  • Page 10: Installation

    9 Installation The TC-1 provides for up to 4 thermocouple inputs for use with EGT and CHT probes. K, J as well as E-type probes can be used. K types are used for EGT probes while CHT probes can either be J or K type. E-type probes are seldom used.
  • Page 11: Connection Diagram

    9.1 Connection Diagram The use of an external 1A fuse is recommended. Connect the supply terminals to your aircrafts power supply. The TC-1 can be used on both 12V and 24V without the use of any pre-regulators. Ensure that the supply voltage will not drop...
  • Page 12 TC-1 Operating Manual Page 12 9.2 Connection diagram for a Rotax 503/582...
  • Page 13 TC-1 Operating Manual Page 13 9.3 Connection diagram for a Rotax 912 9.4 Extending leads of thermocouple probes Thermocouple leads as used with the EGT and CHT probes can be extended either with ordinary copper cable or with special K-Type extension cable. The choice of either depends on your desired accuracy. If it is possible in your installation to ensure that both ends of a copper extension cable will be at the same temperature (or very close), then it is quite possible to use the copper cable.
  • Page 14: Warranty

    Used for firmware upgrading 8-30Vdc power White Alarm Output Thermocouple (EGT/CHT) input connector (Top DB9 connector) In case of MGL Avionics K-Type probes + = Yellow probe lead, - = Red probe lead DB 9 Pin Color Function Blue TC Channel 1 +...
  • Page 15 TC-1 Operating Manual Page 15 11 Disclaimer Operation of this instrument is the sole responsibility of the purchaser of the unit. The user must make themselves familiar with the operation of this instrument and the effect of any possible failure or malfunction.

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