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Indicateur de procédé à cristaux liquides, alimenté par boucle de courant

1/8 DIN Two-Wire, Current Loop Process Indicator with LCD Display

Article# TX82B

1/8 DIN Two-Wire, Current Loop Process Indicator with LCD Display TX82B TX82B
  • Alimenté par la boucle de courant 4-20mA, 1-5mA ou 10-50mA
  • Chute de tension de 2,5V maximum
  • Affichage ±1 999, ±19 990 ou ±199 900
  • Charactères en cristaux liquides de 12,7mm
  • Réglage la plage de 100 à 2 000 points
  • Décalage de l'origine jusqu'à 2 000 points
  • Boîtier court 48x96mm (1/8DIN)
  • Branchement simple à 2 fils
  • Connexion de sûreté à vis

    Options
  • Fonctionnement de -40 à 85°C
  • Couvercle de face avant à protection NEMA-4


Description

L'indicateur Newport 558B de taille 48x96mm (1/8 DIN) est directement alimenté par la boucle de courant 4-20mA, 1-5mA ou 10-50mA sans qu'aucune autre alimentation soit nécessaire. Cela simplifie le câblage et réalise une excellente immunité contre les parasites;

This reduces field wiring costs and provides immunity from most electrical noise encountered in process-control environments. The two-wire electrical hookup is easy via a plug-in screw-clamp connector, which is standard.

Readout of Process Variables
The TX82B provides extensive zero and span adjustment capability for direct readout in percent or in engineering units for process variables such as pressure, flow, temperature, or level. A 0.50 in (12.7 mm) high LCD display provides 3 1/2 active digits for readout to ±1,999, two jumper-selectable dummy right-hand zeros for display to ±19,990 or ±199,900, and five jumper-selectable decimal points. With the dummy zeros, the TX82B can thus be used to display the weight of heavy trucks in pounds or the volume of large tanks in gallons.

Easy to Configure and Calibrate
Both span and zero are fine-tuned with precision 15-turn potentiometers accessible behind the lens. Coarse zero and span steps as well as the dummy right-hand zero are selected by opening the case and changing push-on jumpers.

Intrinsic Safety Certification
For use in hazardous environments, the TX82B is available with BASEEFA intrinsic safety certification to level EEx ia IIC T4 in accordance with European CENELEC standards EN 50 014 (1977) + A1 to 4 and EN 50 020 (1977) + A1. The BASEEFA certification number is EX 86B2378. EEx ia intrinsic safety certification allows the TX82B to be used in Zone 0 (worst case) hazardous environments with no need for an explosion-proof housing, provided that an intrinsic safety barrier is used to limit the voltage and current that may be introduced in the hazardous environment.

Built for Industrial Environments
Model TX82B is housed in a splash resistant case and requires a depth of less than 3.9" (100 mm) behind the panel. A splash-proof lens cover which meets NEMA-4 requirements is optional. Electrical connections are via a three-pole male header connector on the circuit board and a mating plug-in socket connector with screw clamps, which accommodate wire sizes of 0.5 to 2.5 mm (26 to 16 AWG). These supplied connectors provide easy and reliable electrical connections and meet UL and IEC-348 safety requirements.

Examples of pricing for popular models is referenced in the "To Order" box. Use the "Part Number Builder" below to get pricing for all available models.
For complete product specifications see the Related Links section at the bottom of this page.
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