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      ET5*B

      Yokogawa ET5*B microprocessor-based universal thermocouple input signal conditioner card for YS1000 Series instruments. It accepts thermocouple types B, E, J, K, T, R, S and N with configurable engineering units, zero, span and burnout direction.

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      Technical specifications Information Alternative names Technical notes FAQ

      Technical specifications for ET5*B

      Technical specifications for ET5*B

      • Manufacturer:
        Yokogawa
      • Product Category:
        General Automation
      • Spare Part Number:
        ET5*B
      • Estimated shipping dimensions:
        73 mm (W) × 24 mm (H) × 115 mm (D), including knob.
      • Weight:
        0.22 lbs (0.1 kg)
      • Tariff Code:
        Official Yokogawa specifications do not state an HS/tariff code; confirm customs classification before shipment.
      • Counliy of origin:
        Country of manufacture is not stated in the cited official specifications; verify the product nameplate and certificate of origin.
      • Product Type:
        Universal thermocouple input signal conditioner card
      • Supported Thermocouples:
        K, T, J, E, B, R, S and N
      • Input Standard:
        JIS C 1602 / IEC 60584-1 (ITS-90)
      • Measuring Span:
        10 to 63 mV thermoelectric conversion
      • Input Resistance:
        1 MΩ; 10 kΩ when power off
      • External Input Resistance:
        500 Ω maximum
      • Allowable Input Voltage:
        -0.5 to 4 V DC
      • Input Linearization:
        Provided
      • Output Signal:
        1 to 5 V DC, two outputs; output resistance 1 Ω max; load resistance 2 kΩ min
      • Burnout:
        Selectable upscale, downscale or off; scaleout <60 s
      • Signal Isolation:
        Input-to-output, input-to-power, and output-to-power isolation
      • Mounting Method:
        Mounted in special signal-conditioner nest
      • External Wiring:
        M4 screw terminals; special connector cable to I/O card
      • Dimensions:
        73 × 24 × 115 mm including knob
      • Accuracy:
        Larger of ±0.1% of span and ±20 µV input conversion
      • RJC Error:
        Type R/S: ±2°C; other types: ±1°C; no RJC for Type B
      • Isolation Resistance:
        100 MΩ at 500 V DC between specified isolated circuits
      • Withstanding Voltage:
        1500 V AC for 1 min input-to-output/input-to-power; 500 V AC output-to-power
      • Power Supply:
        24 V DC ±10%
      • Maximum Current Consumption:
        60 mA at 24 V DC
      • Ambient Conditions:
        0 to 50°C; 5 to 90% RH, non-condensing
      • Temperature Effect:
        Maximum ±0.2% of span per 10°C change
      • Supply Voltage Effect:
        Maximum ±0.1% of span over 24 V DC ±10%
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      Information

      Information

      Overview Common Applications Product Precautions
      The Yokogawa ET5*B is a microprocessor-based universal thermocouple input signal conditioner card used with YS1000 Series instruments. It accepts thermocouple types B, E, J, K, T, R, S and N and provides configurable engineering units, zero, span and upscale/downscale/off burnout behavior.
       
      The card provides two isolated 1–5 V DC outputs and operates from 24 V DC ±10%. It mounts in the specified signal-conditioner nest, connects to field wiring through M4 screw terminals and uses the dedicated connector/backboard arrangement.
       
      Product status: the official Yokogawa sources reviewed do not publish a formal discontinuation notice, discontinuation date or one-for-one successor for ET5*B. Confirm current supply and lifecycle status with Yokogawa for the exact suffix.
      Direct thermocouple input for Yokogawa YS1000 Series single-loop control and monitoring instruments.
       
      Temperature measurement using B, E, J, K, T, R, S or N thermocouples with selectable °C, °F or K engineering units.
       
      Process applications requiring isolated signal conditioning, two 1–5 V DC outputs, configurable zero and span, and selectable upscale or downscale burnout behavior.
       
      Typical use includes temperature monitoring and control in industrial process, utility and equipment-control panels where the installed YS instrument and signal-conditioner nest support ET5*B.
      Connect the reference-junction-compensation sensor to the specified CN6 mating connector; an omitted connection can cause ambient-temperature offset and incorrect readings. Confirm thermocouple type, polarity, extension wire, range, engineering units and burnout direction. Use only the compatible signal-conditioner nest, special cable and M4 terminals. Operate at 0 to 50°C, 5 to 90% RH non-condensing and 24 V DC ±10%. Do not treat another card as a complete replacement until output, supply, nest interface, RJC wiring, isolation and configuration compatibility are verified.

      Alternative Names

      Alternative Names

      ET5B ET5-B ET5*B/YS Yokogawa ET5 thermocouple input card

      Technical notes

      Technical notes

      Yokogawa identifies ET5*B as a microprocessor-based universal thermocouple input card used with YS1000 Series instruments. Official documents and the current Yokogawa application note do not publish a formal discontinuation notice, discontinuation date, or one-for-one successor, so no replacement should be described as a complete drop-in substitute. Before replacement, confirm thermocouple type and range, °C/°F/K engineering units, zero and span, burnout direction, dual 1–5 V DC outputs, 24 V DC supply, special-nest/backboard connector and M4 terminal wiring, reference-junction-compensation sensor connection, ambient limits, isolation, and the instrument configuration procedure. The RJC sensor connector must be fitted to CN6 where required; omission can create an ambient-temperature offset and incorrect reading.

      FAQS

      • What is the Yokogawa ET5*B?
        ET5*B is a microprocessor-based universal thermocouple input signal conditioner card used with Yokogawa YS1000 Series instruments and configured through the instrument maintenance menu.
      • Which thermocouple types does ET5*B accept?
        It supports thermocouple types B, E, J, K, T, R, S and N. Engineering units can be configured as °C, °F or K together with zero, span and burnout behavior.
      • What output and power supply does ET5*B use?
        The card provides two 1–5 V DC outputs and operates from 24 V DC ±10%, with maximum current consumption of 60 mA according to the official specifications.
      • Where is ET5*B used?
        It is used for direct thermocouple temperature input in YS1000 Series control and monitoring applications where isolated signal conditioning and configurable ranges are required.
      • Why is the reference-junction sensor connection important?
        The card assembly reference-junction-compensation sensor must be connected as specified. Yokogawa warns that omitting the connector can create an ambient-temperature offset and an incorrect temperature reading.
      • Is Yokogawa ET5*B discontinued?
        The official Yokogawa sources reviewed do not publish a formal discontinuation notice, a discontinuation date or an official successor for ET5*B. Status should be confirmed with Yokogawa for the exact suffix.
      • Can another thermocouple card completely replace ET5*B?
        No complete replacement should be assumed without engineering review. A candidate must match the thermocouple types and range, dual outputs, supply, nest/backboard connection, RJC wiring, isolation, ambient limits and configuration method.
      • What information should be provided when requesting ET5*B?
        Provide a clear nameplate photo, complete model and suffix, thermocouple type, configured range and units, burnout setting, YS instrument model, nest/connector details, quantity and required documentation.
      Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
      Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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