The Model 1140A has the highest accuracy and most economical price of all the models ever released by Ectron. The Model 1140A has 0.05°C accuracy for common thermocouple types including cold-junction compensation. Moreover, the Model 1140A offers dc accuracy of 0.0025% + 0.75 µV for 6 months, in both source and measure modes

The Model 1140A provides four calibration functions: precise simulation of thermocouple signals, precise measurement of thermocouple signals, generation of accurate dc voltages from microvolt level to ±11 volts, and measurement of dc voltages over the same range. The thermocouple simulation and measurement accuracies are the highest in the industry, affording a margin of calibration accuracy heretofore unavailable.

Using a high-speed microcontroller, the 1140A offers such unique features as an autozero function to correct the zero reading of a non-ideal thermocouple. For repetitive operations, 100 sets of operating conditions can be committed to memory for future retrieval, including automatic sequencing from one condition to the next. Using one of the several interfaces, all functions can be programmed and executed under computer control.

Thermocouple Applications:

Calibration of:
• Temperature Indicators
• Data Systems
• Temperature Transmitters
• Amplifiers and Linearizers
• Temperature Controllers
• Thermocouples (requires bath)

Linear Applications:

Calibration of:
• DC Digital Voltmeters
• Panel Meters
• Strip Chart Recorders
• Millivoltmeters
• VCO's and Amplifiers
• DC Power Supplies

Features:

• 0.05°C Accuracy for Common Thermocouple Types
• Simulate and Measure Thermocouples
• Source and Measure dc Microvolts to Volts, nV Resolution
• Dc Accuracy of 0.0025% + 0.75 µV for Six Months, for both source and measure modes
• Output Impedance of 0.05 Ω, All Ranges
• IEEE-488-2, Ethernet, USB, and other interfaces