4
29
Troubleshooting Guide
b) Calculate maximum allowable loop resistance using the
formula: Loop Resistance (maximum) = V
supply
–7V
For example, a 24V power supply would give a maximum loop
resistance of: 17V/0.020A = 850 ohms.
c) Make sure the power supply is rated for at least 28 mA
times the number of TX93 transmitters being powered. For
example, if the supply is powering five transmitters, the
supply should be rated for at least 140 mA.
0.020A
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...