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SWT-99 Multi-channel Temperature Indicator

SWT-99 Multi-channel Temperature Indicator

Quick Overview

The SWT-99 Multi-channel temperature indicator is designed to measure and display up to 8 temperature inputs from PT100, PT500 and PT1000 probes. The LCD allows up to 8 channels to be displayed at any one time and also the trend temperatures of an channel for the preceeding 12 or 90 seconds. The device is equipped with 2, 4 or 8 temperature (PT100/500/1000) inputs and 2 electronic relay outputs.
View Options


The SWT-99 indicator is intended for measuring and presentation of temperature values from 8 measuring channels. Each channel can be individually designated (described) with any measuring unit. The LCD graphical display allows for visualization of the values from all 8 channels simultaneously. A significant advantage is the possibility of viewing the trends in each measuring channel as a graph for the last 12 or about 90 seconds. Device is equipped in 2 electronic relay outputs that can be used to control external devices. There are icons on the screen signalling the status of the outputs.

  • Simultaneous display of values from up to 8 measuring channels
  • Viewing the trends in each of up to 8 measuring channels
  • Any text description possible: name and units
  • Data transfer to the master system via RS-485
  • Password protected
  • Programmable indication filtration.
Technical Data

Power supply:

  • 19V ÷ 50V DC
  • 16V ÷ 35V AC
  • 85 ÷ 260V AC/DC

Power consumption:

  • typical 7 VA
  • max. 12 VA


with backlighting, graphic LCD, 128 x 64 points

Measuring inputs:

2, 4 or 8 inputs Pt100, PT500, Pt1000, automatic recognition of 2 and 3-conductor connection

Measuring range:

-100°C ÷ 600°C


± 0,3% ± one digit in the entire operation range



Resistance compensation of connecting conductors:

0 ÷ 20 Ω at any conductor

Digital outputs:

2 electronic relays, NO type (ER1, ER2) with max. load 24V AC (35V DC) / 200 mA, overload protection

Transducer power supply output:

24V DC ±5% / max. 50 mA, stabilized, not insulated from measuring inputs

Communication interface:

RS-485, galvanically separated

Transmission protocol:


Transmission speed:

1200 ÷ 115200 bit/sec.

Operating temperature:

0°C ÷ +50°C

Storage temperature:

-10°C ÷ +70°C

Protection class:

  • IP 65 (front side when an additional frame is installed)
  • IP 40 (front side)
  • IP 42 (when transparent door with security key type STD-99 is installed, see: accessories)
  • IP 20 (case and connection clips)



Case material:


Case dimensions:

96 x 96 x 100 mm

Panel cut-out dimensions:

90,5 x 90,5 mm

Installation depth:

min. 102 mm

Board thickness:

max. 5 mm

Availability: In stock

Price range : £222.12 - £324.70

Price as configured: £222.12

* Required Fields

Price as configured: £222.12


Part Builder

Description       SWT-99 Temperature Indicator with LCD display, with large digit, graph and table view, RS485/Modbus RTU output. 2 electronic relay outputs with overload protection.

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

SWT-99 Temperature Indicator with LCD display, with large digit, graph and table view, RS485/Modbus RTU communication. 2, 4 or 8 input channels and 2 electronic relay outputs with overload protection.
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Lockable transparent door, IP54 for SRD-99 and CMC-99 data loggers.
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