WILKERSON INSTRUMENT CO., INC.

SC5000 Thermocouple/RTD Input
Two-Wire Transmitter With Digital Linearization

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SC5000

SC5000
Thermocouple/RTD Input
Two-Wire Transmitter
With Digital Linearization

 

This Product is No Longer Available

 

 
  • Features
  • Description
  • Specifications
  • Dimensions
  • Connections
  • Provides DC Output Proportional to a Thermocouple or Platinum RTD Input
  • Linearized for J, K, R, S, T, E, and N Thermocouples or Platinum RTDs
  • 2, 3, or 4 Wire RTD Inputs
  • Full Galvanic Isolation
  • Microprocessor Based
  • Test Points for Loop Current Monitoring without Breaking Loop Circuit
  • ntrinsically Safe Design
  • Permanent Warranty

The SC5000 series of products provide a DC output current 4/20 mADC proportional to a thermocouple or RTD, using microprocessor based, digital circuitry in a “hockey puck” case. The output can be linearized for both thermocouples and platinum RTDs. The input and output are isolated. The user may select thermocouple types J, K, R, S, T, E, N or 100 ohm Pt RTDs as the input sensor. RTD connections for 2-wire, 3-wire and 4-wire sensors are provided. The transmitter compensates for the lead wire resistance in the 3-wire configuration and provides true measurement of the resistive element without lead wire error in the 4-wire configuration.

Linearization is accomplished through a 256 point “look up table” program.

INPUT
Thermocouple
Types J, K, R, S, T, E, & N
Spans 5 mV minimum to maximum usable range

Linearization
Maximum Linearized Range
      J -210 °C to +760 °C
      K-250 °C to+1372 °C
      R -50 °C to+1768 °C
      S -50 °C to+1768 °C
      T -270 °C to +400 °C
      E-260 °C to+1000 °C
      N-250 °C to+1300 °C

Reference Junction Compensation Accuracy
±0.25 °C

Impedance
>1 megohm

Span Adjustment
Continuous from 6.25% to 100% of T/C range
(5 mV minimum span)

RTD
100 Ohm Platinum, 0.00385 and 0.00392 alpha,
2, 3, or 4 wire connection

Maximum Usable Range
-200 °C to +850 °C

Minimum Usage Range
45 °C

Zero Adjustment
Continuous from 0% to 90% of temperature sensor range

OUTPUT
Range 4/20 mADC

Modes (User Configured)
Normal / Reverse acting
Linear / Non-linear

Burnout Indication
(User Configured)
Upscale / Downscale

Linearity
±0.25 °C of NIST Tables

Accuracy
±0.05% of span

Repeatability
±0.01% of span

Input to Output Linearity
±0.01% of span

Response Time
<1 sec.

Ripple
(Peak-to-Peak)
<0.1% of full scale

Power Supply Effect
<0.001% of span / Volt

Ambient Temperature Effect
±0.005% of span / °C

Long Term Stability
±0.0005% of span / 6 months

ISOLATION
Output / Input > 500 megohms
Breakdown, Output / Input > 1000 Volts RMS sinewave
Resistance > 500 megohms

COMMON MODE REJECTION
120 dB, DC to 60 Hz

OPERATING TEMPERATURE
-40 °F to +176 °F / -40 °C to +80 °C

RFI IMMUNITY
Filtering and shielding to reject RFI interference

POWER
10-36 VDC, Polarity-Protected
(current limited to 30 mA max.)

SC5000 Dimension Drawing

SC5000 / 5010 Wiring Guide

Specifications    Manual

Solutions Provider for Signal Conditioning and
Process Control Instrumentation