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Introduction
6
1
The TX93 has reverse supply polarity protection and will operate with a wide
range of supply voltages (7 to 35 Vdc). It has an input sensor break-protection
circuit that forces the output current to go upscale when the thermocouple wire
opens. It also is provided with a screw terminal, where the output current can be
measured without interrupting the power loop. The TX93 does NOT provide
isolation between its input and the 4-20 mA output; therefore, an ungrounded
thermocouple junction is suggested to prevent possible ground loops. Note that
most thermocouple transmitters with 4-20 mA outputs, including the TX93, are
proportional with respect to the thermocouple input voltage. However, the rela-
tionship between temperature and millivolt for all the thermocouple types is
somewhat non-linear.
Summary of Contents for TX93
Page 8: ...Introduction Figure 1 1 TX93 Transmitter Figure 1 2 Dimensions in inches 2 1...
Page 10: ...Figure 1 3 TX93 Thermocouple Transmitter Introduction 4 1...
Page 20: ...Installation 14 2 Figure 2 3 TX90 BR Mounting Bracket Dimensions in inches...
Page 21: ...2 15 Installation Figure 2 4 Installation with the Bracket and Track Dimensions in inches...
Page 22: ...Installation 16 2 Figure 2 5 TX 90 DIN DIN Rail Mounting Adapter in Inches...
Page 24: ...Installation 18 2 Figure 2 6 Wiring Diagram for the TX 93...
Page 29: ...3 23 Calibration Instructions Figure 3 1 TX93 Calibration Set Up...
Page 30: ...Calibration Instructions 24 3 Figure 3 2 TX93 Calibration Set Up Alternate...
Page 40: ...6 Notes 34...
Page 41: ...6 Notes 35...
Page 42: ...Notes 6 36...