---
lang: "en"
title: "Z-4RTD2 4-channel RTD input module / RS485"
sku: "Z-4RTD2"
canonical_url: "https://shop.marcomweb.it/en/remote-io/z-4rtd2-4-channel-rtd-input-module-rs485"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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Z-4RTD2: 4-channel RTD input module / RS485

The Z-4RTD2 is a converter for platinum or nickel resistance thermometers, with four independent and isolated measurement channels, isolated from each other, from the power supply and from the serial communication line up to 1.5 kV.

In addition, the module features easy wiring of the power supply and serial bus via the bus housed in the DIN rail, communication configurability via DIP-switch or serial communication software RS485 with MODBUS-RTU protocol, maximum 32 nodes

## Features

- POWER SUPPLY: 10..40 Vdc; 19..28 Vac
- ISOLATION: 1.5 kVac at 6 points between channels, power supply and communication
- OPERATING TEMPERATURE: -10..70°C
- INPUTS: N° 4 channels from RTD (PT100, PT1000, PT500, Ni100 with 2, 3 or 4 wires)
- RESOLUTION: 14 bit or 13 bit on the input range
- ACCURACY CLASS: 0.05%
- COMMUNICATION: RS485 2-wire, ModBUS RTU slave protocol
- CONNECTION: microUSB on front panel
- PROGRAMMING: Via software with EASY Setup or Z-NET4 or via DIP-switch
- DIMENSIONS WXHXD: 17.5x100x112 mm
- MOUNTING: For 35 mm DIN 46277 rail

---

Source: https://shop.marcomweb.it/en/remote-io/z-4rtd2-4-channel-rtd-input-module-rs485

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.