8B33

TRUE RMS INPUT MODULE

Dataforth Signal Conditioning Modules  •  Signal Conditioners
8B33  True RMS Input Module
8B33 - True RMS Input 8B Module
CE is a mandatory standard for products on the market in the European Economic Area. By CE marking a product, the manufacturer ensures that the item meets the essential safety requirements set out in the applicable CE directive.
This product fully adheres to the Restriction of Hazardous Substances Directive 2002/95/EC, RoHS for short.  The directive covers the restriction of use of certain hazardous substances in electrical and electronic equipment and was adopted in February 2003 by the European Union.
Underwriters Laboratories (UL) is an independent product safety certification organisation based in the United States. UL develops standards for products, materials, components, assemblies, tool and equipment, mainly dealing with product safety.
6 8B33 versions available
From
£182

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Version information
Lead time*
1 off price**
Request qty / trade pricing**
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8B33-01
8B33 with 0 to +100mV input, 0 to +5V output
£182
8B33-02
8B33 with 0 to +1V input, 0 to +5V output
£182
8B33-03
8B33 with 0 to +10V input, 0 to +5V output
£182
8B33-04
8B33 with 0 to +100V input, 0 to +5V output
£182
8B33-05
8B33 with 0 to +300V input, 0 to +5V output
£182
8B33-06
8B33 with 0 to 1A input, 0 to +5V output
£182
Peripheral information
Lead time*
1 off price**
Request qty / trade pricing**
Buy now
Single Channel 8B DIN Backpanel with 5V power, no CJC
£83
2 Channel 8B Backpanel with CJC
£97
2 Channel 8B Backpanel with no CJC
£81
2 Channel 8B Backpanel with DIN rail mount, CJC
£146
2 Channel 8B Backpanel with DIN rail mount, no CJC
£131
4 Channel 8B Backpanel with CJC
£156
4 Channel 8B Backpanel with no CJC
£133
4 Channel 8B Backpanel with DIN rail mount, CJC
£210
4 Channel 8B Backpanel with DIN rail mount, no CJC
£183
8 Channel 8B Backpanel with CJC
£230
8 Channel 8B Backpanel with no CJC
£178
8 Channel 8B Backpanel with DIN rail mount, CJC
£305
8 Channel 8B Backpanel with DIN rail mount, no CJC
£256
16 Channel 8B Backpanel with CJC
£357
16 Channel 8B Backpanel with no CJC
£263
16 Channel 8B Backpanel with DIN rail mount, CJC
£465
16 Channel 8B Backpanel with DIN rail mount, no CJC
£368
8B Cold Junction Compensation Sensor
£14
Universal Interface Board for 8B Backpanels with no DIN rail mount
£78
Universal Interface Board for 8B Backpanels with DIN rail mount
£79
Interface Cable for 8B Backplanes with 1M length
£35
Interface Cable for 8B Backplanes with 2M length
£40
Interface Cable for 8B Backplanes with 7M length
£60
220V AC Power Supply (1A @ 5V DC) with no DIN rail mount
£305
220V AC Power Supply (1A @ 5V DC) with DIN rail mount
£335
220V AC Power Supply (6A @ 5V DC)
£560
110V AC Power Supply (1A @ 5V DC) with no DIN rail mount
£286
110V AC Power Supply (1A @ 5V DC) with DIN rail mount
£313
110V AC Power Supply (6A @ 5V DC)
£560
EN50022-35 Gull Wing DIN Rail, Length 2M
£66
EN50035-G32 G Style DIN Rail, Length 2M
£103
EN50022-35x15 Gull Wing DIN Rail, Length 2M
£66
19'' Metal Mounting Rack for SCM5B/7B or 8B Backplanes
£87
Single Channel 8B DIN Backpanel with 5V power, CJC
£99
Single Channel 8B DIN Backpanel with 24V power, no CJC
£113
Single Channel 8B DIN Backpanel with 24V power, CJC
£123
All prices exclude VAT at current rate.
Minimum order value - £50 (exc. VAT and delivery).
Free delivery of the 8B33 to UK Mainland on orders over £150 (exc. VAT and delivery) when purchasing online - excludes Northern Ireland, Isle of Man, Isle of Wight, Scottish Islands and the Channel Islands.

* Lead time is indicative and is subject to change at time of ordering. Next business day delivery on in-stock products only (when ordered before 3pm).
** Contact us for quantity or project pricing.
† Additional delivery charge may be incurred for certain postcodes (calculated at checkout)

8B33 overview

  • Interfaces RMS Voltage (0 - 300V) or RMS Current (0 - 1A)
  • Designed for Standard Operation with Frequencies of 45Hz to 1000Hz (Extended Range to 10kHz)
  • Compatible with Standard Current and Potential Transformers
  • Industry Standard Output of 0-5VDC
  • ±0.25% Factory Calibrated Accuracy
  • 1500Vrms Continuous Transformer Isolation
  • Input Overload Protected to 350Vrms Max (Peak AC & DC) or 2Arms Continuous
  • ANSI/IEEE C37.90.1 Transient Protection
  • C-UL-US Listed
  • CE Compliant
  • ATEX Compliance Pending
  • Mix and Match Module Types on Backpanel
Each 8B33 True RMS input module provides a single channel of AC input which is converted to its True RMS DC value, filtered, isolated, amplified, and converted to a standard process voltage or current output.

The field voltage or current input signal is processed through a pre-amplifier and RMS converter on the field side of the isolation barrier. The converted DC signal is then chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier, suppressing transmission of common mode spikes and surges. The computer side circuitry reconstructs, filters, andconverts the signal to an industry standard output of 0 to 5VDC.

Special input circuits provide protection against accidental connection of power line voltages up to 350VAC and against transient events defined by ANSI/IEEE C37.90.1.
OPC-UA
OPC-UA is supported by many of our communication and I/O products. If you are interested but not quite sure how to implement OPC-UA into your factory then get in touch.
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