Omega NB2TX93A-J2 User Manual Download Page 1

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TX93A

(J, K, T, E) 4-20 mA

Ultra-Miniature

Temperature Transmitters

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User’s Guide

Summary of Contents for NB2TX93A-J2

Page 1: ...e mail info omega com For latest product manuals www omegamanual info TX93A J K T E 4 20 mA Ultra Miniature Temperature Transmitters TM Shop online at omega com User sGuide...

Page 2: ...pecifications without notice omega com info omega com Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Cana...

Page 3: ...1 1 3 General Description 1 1 4 Features 3 1 5 Models Available 4 Section 2 Installation 2 1 Mounting 5 2 2 Wiring 6 Section 3 Calibration Instructions 3 1 Equipment Required 7 3 2 Set up of Equipmen...

Page 4: ...gure 2 1 Assembly inside an NB2 Protection Head 5 Figure 2 2 Wiring Diagram for Thermocouple Transmitter 6 Figure 3 1 Transmitter Calibration Set Up 9 Figure 3 2 Transmitter Calibration Set Up Alterna...

Page 5: ...rd Do not expose the transmitter to rain or condensing moisture Do not operate the transmitter in flammable or explosive atmosphere As with any electronic instrument you may encounter high voltage exp...

Page 6: ...designed to connect with only two copper wire leads that will supply the voltage to operate the transmitter from a power supply and also carry the output current The output current is used for record...

Page 7: ...and millivolt for all the thermocouple types is somewhat non linear This leads to maximum error at approximately the midpoint of the range as shown in Figure 1 2 Figure 1 2 Straight Line Approximation...

Page 8: ...o 300 F 18 to 149 C J3 K3 T3 E3 0 to 500 F 18 to 260 C J4 K4 T4 E4 0 to 750 F 18 to 399 C J5 K5 T5 E5 0 to 1000 F 18 to 538 C J6 K6 E6 Table 1 2 Model Numbers Model Number Description TX93A Thermocoup...

Page 9: ...ounting The transmitter may be 1 surface mounted 2 mounted inside a protection head shown in Figure 2 1 Figure 2 1 Assembly of the Transmitter inside an NB2 Protection Head SECTION A A POWER LINES T C...

Page 10: ...series with the load to the PS and PS power terminals Note that the load usually a monitoring instrument may be connected to either the or power lead 2 Connect the thermocouple to the IN and IN input...

Page 11: ...Number TRP Thermocouple Type J K T E 3 2 Set Up of Equipment To prepare the ice bath Refer to Figure 3 1 a Fill a glass beaker with crushed ice made from distilled water b Fill the beaker with enough...

Page 12: ...model number For example for Model TX93A J2 the Z input is 0 886 mV and the S input is 4 907 mV If a Thermocouple Calibrator Simulator is used such as the Model CL511 Precision Calibrator select the...

Page 13: ...9 3 3 Calibration Procedures continued Figure 3 1 Transmitter Calibration Set Up Figure 3 2 Transmitter Calibration Set Up Alternate...

Page 14: ...2 255 40 120 F E1 2 255 2 977 0 200 F T2 0 675 3 968 E2 1 026 5 871 0 300 F T3 0 675 6 648 E3 1 026 9 710 0 500 F T4 0 675 12 574 E4 1 026 17 945 0 750 F T5 0 675 20 803 E5 1 026 28 857 0 1000 F E6 1...

Page 15: ...rmula Loop Resistance maximum Vsupply 8 V 0 020A For example a 24V power supply would give a maximum loop resistance of 16 V 0 020A 800 ohms c Make sure the power supply is rated for at least 28 mA ti...

Page 16: ...uency Response 3dB 3Hz Thermal Zero Shift 0 01 F of span span 10 mV 0 02 F of span 4 10 mV span Thermal Span Shift 0 01 F of span Output Current Output Span 4 20 mA dc Current Output Limits 3 to 28 mA...

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Page 19: ...A if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to m...

Page 20: ...s M U Turbine Paddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U...