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Omega TX82B manual

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Table of contents for the manual

  • Page 1

    www .omega.com e-mail: info@omega.com omega.com ® OMEGA ® U ser ’ s Guide TX82B Panel Mounted Current Loop Indicator Shop on line at[...]

  • Page 2

    Ser vicing Nor th America: USA: One Omega Drive, P .O. Box 4047 ISO 9001 Certified Stamford CT 06907-0047 TEL: (203) 359-1660 F AX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1 TEL: (514) 856-6928 F AX: (514) 856-6886 e-mail: info@omega.ca F or immediate technical or applica tion assistance: USA and Canada: Sales [...]

  • Page 3

    T ABLE OF CONTENTS 1.0 GENERAL INFORMA TION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 SPECIFICA TIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 4

    UNP ACKING INSTRUCTIONS Remove the Packing List and verify that you have received all equipment, including the following: QTY DESCRIPTION 1 Current Loop Meter Indicator with all applicable connnectors attached. 1 Owner's Manual 1 Factory Setup Label If you have any questions about the shipment, use the phone number for the Customer Service Dep[...]

  • Page 5

    1 1.0 GENERAL INFORMA TION Model TX82B two-wire current-loop indicator accepts 1-5 mA, 4-20 mA, or 10-50 mA process signals and digitally displays the process variable in percentage or engineering units of such measurements as pressure, flow , temperature and level. No separate power supply or power connections are required, since the TX82B obtains[...]

  • Page 6

    2 2.0 SPECIFICA TIONS 2.1 INPUT Current 1-5 mA, 4-20 mA or 10-50 mA Protection 200 mA max forward and 1000 mA max reverse V oltage Drop 2.5 V max forward and 1.2 V max reverse Span Range 100 to 2000 counts continuous adjustment with a multiturn potentiometer Zero Range The multiturn zero potentiometer can displace the displayed reading by ±500 cou[...]

  • Page 7

    3 2.4 DISPLA Y T ype 7-segment LCD Color Black digits with white background Symbols -1.8.8.8.0.0, 12.7 mm (0.5 in) height Polarity Minus sign Overrange Three least-significant digits blank Extra digits One or two dummy right-hand zeros, jumper-selectable Decimal points Four positions, jumper-selectable Lifetime (to 2:1 contrast ratio) More than 30,[...]

  • Page 8

    4 3.0 MECHANICAL ASSEMBL Y AND INST ALLATION 3.1 SAFETY CONSIDERA TIONS T o ensure safe operation, follow the guidelines below: VISUAL INSPECTION: Do not attempt to operate the instrument if damage is found. SIGNAL WIRING: Insert the proper plus and minus signal wires into the plug-in screw-clamp connector terminals marked plus and minus. Ensure th[...]

  • Page 9

    3.3 INST ALLA TION/REMOVAL The TX82B is housed in a 1/8 DIN case. The electronic circuitry can be installed or removed from the front and is attached to the case with two M4 screws through the rear panel. Panel Mounting 1. Remove the two thumbnuts on the rear of the case. 2. Slide the sleeve off the case (see Figure 3-1 Exploded View). 3. V erify t[...]

  • Page 10

    6 Figure 3-2. DIN Case Dimensions 4.0 SIGNAL INPUT CONNECTIONS (P3) The signal input connections for all meters are made at connector P3 as follows (see Figure 3-1): P3 Connection Signal 1 Signal Hi 2 Signal Lo 3 No Connection 4.15 [105.4] SLEEVE 3.50 [88.9] 1.89 [48.0] 3.78 [96.0] 7.9 [0.31] MAX CASE TOP VIEW SIDE VIEW PANEL CUT-OUT [45.00 +0.61/-[...]

  • Page 11

    7 5.0 CONFIGURA TION The standard TX82B meter is factory-configured for an input of 4-20 mA to display 00.0 to 100.0. Field configuration for input current range, decimal point location, dummy right-hand zero digit, coarse zero range selection, and reverse span slope may be done by relocating internal push-on jumpers and adjusting the span and zero[...]

  • Page 12

    8 Figure 5-1 Main Board Jumper Locations A AH J F C D E B G BJ E H G R4 U3 U2 P3 VR1 S1 S2 S2 SP AN ADJ. ZERO ADJ. VR2 R30 S1 F C D[...]

  • Page 13

    9 6.0 CUSTOMER CONFIGURA TION AND CALIBRA TION Use this procedure to determine the configuration of the TX82B customized setup. The procedure is general; customers can specify any two current inputs and their corresponding digital readings. Pin-groups are shown in Figure 5-1. 6.1 FORMULA Base all your calculations on either the 1-5, 4-20 or 10-50 m[...]

  • Page 14

    10 6.2 CONFIGURA TION PROCEDURES 1. Remove all push-on jumpers. 2. For an input current range of 1-5 mA, no jumper is required. For 4-20 mA input, install a push-on jumper at S1-H. For 10-50 mA input, install a push-on jumper at S1-J. 3. If N2 (Section 6.1) is less than N1, reverse the signal polarity by removing jumpers from S1-B and S1-C and rein[...]

  • Page 15

    11 Figure 7-1 Wiring Diagram for TX82B Usage for FM (Factory Mutual) SAFE AREA APPARATUS 2 EARTHED BUS BAR + - 3 1 4 INTER- CONNECTING CABLES SHUNT ZENER DIODE SAFETY BARRIER SAFE AREA HAZARDOUS AREA NOTES: Apparatus which is unspecified except that it must not be supplied from nor contain under normal or abnormal conditions a source of potential w[...]

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  • Page 19

    WARRANTY / DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA ’ s customers rec[...]

  • Page 20

    M1060/0303 10579ML-99 J Where Do I Find Everything I Need for Process Measurement and Contr ol? OM EGA…Of Course! Shop on line at www .omega.com TEMPERA TURE   Thermocouple, RTD & Thermistor Pr obes, Connectors, Panels & Assemblies   W ire: Thermocouple, R TD & Thermistor   Calibrators & Ice Point References  [...]