56-101-00930 Revision H
Page 2
B. The main features of the T1200A are:
1. Microprocessor Based
2. Backlit 16-character alphanumeric LCD, which provides readings with applicable units and
instructional user prompts.
3. Specifically designed to meet all requirements for testing aircraft Chromel - Alumel (CH - AL)
temperature measuring systems, providing an accurate display of thermocouple outputs in
degrees Celsius (°C), Fahrenheit (°F) and Millivolt (mV).
4. Thermocouple and lead resistance measurements to 0.001
Ω and insulation measurements
up to 200 MΩ.
5. Simulates thermocouple outputs and system lead resistances from 2 to 25
Ω.
6. Completely self-contained, self-monitoring, easily portable temperature and resistance
measuring and simulating device for all CH - AL systems with the capability to bench test
indicators.
7. Human engineered for maximum ease of operation.
8. Automatic ambient test point temperature correction.
9. Carrying Case features:
a) Fabricated from high impact plastic
b) Provides a pouch for test lead storage.
c) The lid contains a placard of short operating instructions for the experienced technician.
10. Auto Detection of Cable: At power up, the TT1200A looks to see if the Standard Cable leads
are connected to the panel’s TEST receptacle and displays the prompt “TEST CABLE?” if
no cable is detected. If the Standard Cable leads are then connected to the TEST
receptacle, the prompt “Standard Cable” will be briefly displayed. If the TT1200A is powered
up with the Standard Cable leads already connected to the panel’s TEST receptacle, no
prompt is displayed.
11. Color Coded Function Keypad: For ease of use, the TT1200A keypad is color-coded to
indicate the function, setting, range, and/or mode (soft key) pairing.
12.
Auto Off: To save battery power, this “automatic off” feature allows the user to set a turn off
time period for the unit in 5-minute increments (up to 1 hour). (If auto off is disabled, the Test
Set stays on until the batteries become low.)
