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ER5*C

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Yokogawa ER5*C is a three-wire RTD input conditioner for Pt100, JPt100 and Pt50 sensors. It converts the selected resistance range into two isolated 1 to 5 V DC outputs for CENTUM signal-processing assemblies.
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Technical specifications for ER5*C

  • Manufacturer:
    Yokogawa
  • Part Number:
    ER5*C
  • Product Family:
    Yokogawa DCS system
  • Product Type:
    RTD Input Signal Conditioner Card
  • Stock:
    1
  • Input sensor:
    Three-wire RTD
  • Excitation current:
    1 mA
  • Supported elements:
    Pt100, JPt100 and Pt50
  • Output signal:
    1 to 5 V DC, two outputs
  • Isolation:
    Input/output/power/ground isolated
  • Supply voltage:
    24 V DC ±10%
  • Maximum current consumption:
    60 mA
  • Operating temperature:
    0 to 50 °C
  • Relative humidity:
    5 to 90% RH, non-condensing
  • Style code:
    C
  • Configurable measuring span:
    10 to 650 °C; JPt100 span is 10 to 500 °C
  • Measuring-range adjustment:
    Portable BRAIN terminal
  • Maximum lead resistance:
    150 Ω per wire; three leads must be balanced
  • Input linearization:
    Provided
  • Output resistance:
    1 Ω maximum
  • Minimum output load:
    2 kΩ
  • Burnout selection:
    Upscale, downscale or off through BRAIN terminal
  • Burnout scale-out time:
    Less than 60 s
  • Accuracy rating:
    Greater of ±0.1% of span or ±0.2 °C
  • Second-output accuracy:
    ±0.2% deviation from output 1
  • Isolation resistance:
    100 MΩ at 500 V DC between signal and power circuits
  • Input-to-output withstand voltage:
    1,500 V AC for 1 minute
  • Output-to-power withstand voltage:
    500 V AC for 1 minute
  • Ambient-temperature effect:
    Maximum ±0.2% of span per 10 °C change
  • Supply-voltage effect:
    Maximum ±0.1% of span for 24 V DC ±10%
  • Mounting method:
    Special signal-conditioner nest through backboard connector
  • Process wiring:
    M4 screw terminals in the signal-conditioner nest
  • Weight:
    0.154 lbs (0.07 kg)
  • Estimated shipping dimensions:
    7.3 x 2.4 x 11.5 cm
  • Tariff Code:
    Please confirm the destination before shipping.
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Temperature Range Interoperability Performance

Features:

  • Accepts three-wire Pt100, JPt100 or Pt50 resistance sensors.
  • Produces two standardized 1 to 5 V DC output channels.
  • Separates the field input from output, power and ground circuits.
The C-style card is configured for resistance-temperature measurement rather than millivolt or current input.

It excites, linearizes and isolates the RTD signal before delivering system-level voltage outputs.

Sensor curve, span links and lead compensation must be verified against the installed element.

Apter Power can review sourcing, documentation and system matching for ER5*C.
Verified resources for Yokogawa ER5*C: Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Temperature loops from vessels, bearings and heat exchangers can be standardized for CENTUM input processing.
  • Dual outputs allow the conditioned value to serve separate monitoring and control destinations.
  • Legacy panels can retain existing RTD field wiring when the exact card style and range arrangement are preserved.
  • Selectable ranges cover the supported Pt100, JPt100 and Pt50 sensing elements.
  • Ambient operation is specified from 0 to 50 °C for the installed card.
  • Range selection must follow the actual sensor curve and required process span.
  • The RTD input is isolated from the two voltage outputs.
  • Power and ground separation reduces unwanted current paths through the measurement loop.
  • Isolation does not replace correct shielding and cabinet grounding practices.
  • A known resistance source can verify the configured temperature span.
  • Three-wire lead continuity should be confirmed before zero and span checks.
  • Both 1 to 5 V outputs should track the same simulated RTD points.
Description
ER5*C excites a three-wire resistance thermometer with 1 mA and linearizes the selected Pt100, JPt100 or Pt50 range. The card provides two 1 to 5 V DC outputs for parallel monitoring or control use.

Its role is to turn low-level resistance changes from process temperature sensors into standardized voltage signals. Input, output, power and ground are isolated so the channel can be integrated without directly joining field and system potentials.

The sensor standard, temperature span and three-wire lead arrangement must match the range setting. Lead resistance and terminal continuity should be checked before calibration because they directly affect an RTD measurement chain.
Alternative Names
ER5*C Yokogawa ER5*C ER5 Star C ER5STARC ER5C ER5*C RTD Input Signal Conditioner Card Yokogawa CENTUM Signal Conditioner Cards Yokogawa ER5*C RTD Input Signal Conditioner Card
Technical notes
Wire Yokogawa ER5*C only for the selected three-wire RTD standard; a mismatched Pt curve or lead arrangement produces systematic temperature error.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which resistance elements can Yokogawa ER5*C linearize?
The card supports Pt100, JPt100 and Pt50 elements in a three-wire connection.
How should Yokogawa ER5*C be matched to an existing CENTUM cabinet?
Confirm the signal-conditioner slot, 24 V supply, range setting and output wiring used by the host assembly.
What measurement duties suit Yokogawa ER5*C?
It is intended for process-temperature loops that must be converted from RTD resistance to standard voltage signals.
How can Yokogawa ER5*C availability be handled without assuming OEM stock?
Request the exact style code and desired quantity so current sourcing options can be checked.
Which calibration records should be retained when replacing Yokogawa ER5*C?
Keep the RTD type, configured span, terminal map and as-found zero/span results.
What helps Apter Power prepare a Yokogawa ER5*C quotation?
Send the card label, RTD element, range links, quantity and shipping destination.