Signal Isolator, Temperature RTD Pt100 Input, 0-10V/4-20mA Output

Name: Signal Isolator, Temperature RTD Pt100 Input, 0-10V/4-20mA Output
Brand: Such.com
SKU: SUCH-SIGNI-TAGTR
Price: 89.52 USD
Availability: InStock
Rating: 5.0 (1 reviews)

1 review(s) | Add your review

SKU: SUCH-SIGNI-TAGTR

$89.52

● Distribution configs 1-in-1-out / 1-in-2-out / 2-in-2-out ● Pt100 measurement range -200-850°C ● Temperature drift 0.005% F.S./°C ● System dynamic response time < 10 ms

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Overview
Spec
Application
FAQ
Reviews

Overview

This analog signal isolator accepts Cu50 (-50-150°C) or Pt100 (-200-850°C) RTD inputs with 2.5V excitation and ≤100Ω lead resistance. It outputs 0‑5V, 0‑10V, 4‑20mA, or 0‑20mA. Current load ≤500Ω; voltage load ≥10kΩ. Channel options: 1‑in‑1‑out, 1‑in‑2‑out, or 2‑in‑2‑out, drawing 70‑100mA at 24V. As an rtd isolator, it delivers 0.2% F.S. accuracy, < 10 ms response, and 0.005% F.S./°C drift. This signal conditioner 4‑20mA features 1500VAC isolation, ≥100MΩ insulation, DC 24V ±10% supply, and -20-55°C operation. DIN-rail mount. Ideal for 2/3-wire RTD temperature signal conditioning.

Feature

Channel configurations: a single device offers 1in1out, 1in2out, or 2in2out to reduce module count and panel space.
Pt100 range: -200°C to 850°C with 2.5V excitation and ≤100Ω lead resistance supports long cables without degradation.
Response time: ≤10 ms meets real‑time thermal control, outperforming typical RTD isolators for PID/interlock loops.
Accuracy & drift: 0.2% F.S. with 0.005% F.S./°C maintains <0.3% drift over 55°C without recalibration.
Current draw: ≤70/90/100mA (1in1/1in2/2in2) at 24V DC minimizes per‑channel power for dense cabinet mounting.
Dielectric strength: 1500V AC/1min with> 100 MΩ insulation reliably protects PLC inputs against surges and ground loops.

Dimension (Unit: mm)

Dimensional drawing of 18mm RTD temperature signal isolator, side width 18mm, front height 122mm, overall depth 96mm, panel height 68mm, with DIN-rail mounting clip.

Wiring Diagram

Wiring diagrams for RTD temperature signal isolators featuring 1-in/1-out, 1-in/2-out, and 2-in/2-out configurations, converting RTD inputs to 4-20mA outputs for PLC/DCS.

Spec

Input Signal (RTD type & range)	Cu50: -50-150°C
Input Signal (RTD type & range)	Pt100: -200-850°C
Output Signal	0-5 V
	0-10 V
	4-20 mA
	0-20 mA
Number of Input & Output Channels	1 input & 1 output
	1 input & 2 outputs
	2 inputs & 2 outputs
Current Draw	1 input & 1 output: ≤70 mA
	1 input & 2 outputs: ≤90 mA
	2 inputs & 2 outputs: ≤100 mA
	(at 24V supply, 20mA output)
Output Load Resistance	For 4-20mA: R_L ≤ 500Ω
	For 0-20mA: R_L ≤ 500Ω
	For 0-5V: R_L ≥ 10 kΩ
	For 0-10V: R_L ≥ 10 kΩ
Basic Accuracy	0.2% F.S.
Response Time	≤10 ms (0-90%) (TYP)
Temperature Drift	0.005% F.S./°C (-20°C-55°C)
Dielectric Strength	1500 V AC / 1 min (between input, output, power supply)
Insulation Resistance	≥100 MΩ (between input, output, power supply)
Power Supply	DC 24V, ±10%
Excitation Voltage	2.5 V
Allowable Resistance (lead resistance)	≤100 Ω
Operating Temperature Range	-20-55°C
Applicable Equipment	2-wire, 3-wire resistance: RTD

Application

Cold Chain Warehouse

Food Pasteurization

Industrial Boiler

FAQ

Q1: What RTD sensors does this unit support, and can I use both Pt100 and Cu50? ❯

A: Supports Pt100 (-200-850℃) and Cu50 (-50-150℃) – you specify which one when ordering. The unit is factory‑set to your sensor type and temperature range. If you need both on the same job, you'll need separate units – one for Pt100 and one for Cu50.

Q2: Does the input support 2‑wire RTDs, or only 3‑wire? ❯

A: Both are supported. 3‑wire is recommended for best accuracy – it automatically compensates for lead resistance. 2‑wire works too, but the lead resistance adds directly to the measurement error. If you're running long cables (over 10 meters), definitely go with 3‑wire to avoid significant offset.

Q3: How far can the sensor be placed given the allowable lead resistance? ❯

A: Allowable resistance is ≤100Ω per lead – that's quite generous. With typical 0.5mm² copper cable (about 7.5Ω per 100 meters), you can run sensors over 1,300 meters before hitting the limit. That's more than enough for most industrial installations – even large plants rarely exceed that distance.

1 review(s)

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From: Samuel Jennings | Date: 8/10/2026 6:47 AM

signal isolator temperature rtd makes integration easier

Bought this for a temperature control upgrade and it helped simplify the connection between the RTD sensor and the controller. The signal isolator temperature rtd handles the input signal properly and the output matches the system requirements. The compact size is helpful inside a crowded panel. After a few parameter checks, it has been running without any trouble.

Signal Isolator, Temperature RTD Pt100 Input, 0-10V/4-20mA Output

Feature

Dimension (Unit: mm)

Wiring Diagram

Cold Chain Warehouse

Food Pasteurization

Industrial Boiler

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