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Signal Converters & Isolators

Signal Converters & Isolators

Product catalog summary

Introduction
The document discusses the PX range of threshold and signal converters, which are designed to convert various standard process signals such as voltage levels, current loops, temperature, and pulsed signals. These converters provide galvanic isolation and compatibility with digital inputs, making them suitable for process control and monitoring systems.

Specifications
The PX Signal Conditioner offers 3.75kV galvanic isolation and complies with EMC immunity/emission and low voltage directive standards. It is housed in a 22.5mm wide casing for DIN-rail mounting.

Threshold Relays (PXL-10 and PXL-20)
These relays monitor and control process signals with adjustable setpoints and hysteresis. They feature automatic locking, relay function inversion, and are available in various supply voltages. The PXL-10 uses an SPDT relay output, while the PXL-20 uses a solid-state output.

Process Signal Converter (PXU-20)
This converter transforms analogue signals to different types and provides galvanic isolation. It supports various input and output configurations, with adjustable offset and gain, suitable for applications with potential differences or long probe cables.

Temperature Converter (PXT-10/11)
Designed for converting temperature measurements to analogue signals, this converter supports Pt100/Pt1000 inputs and operates within specified temperature ranges.

Technical Data
Devices are designed according to relevant specifications, including electrical safety and EMC standards. They offer features like adjustable hysteresis, response time, and various input/output configurations. The devices are CE-marked and provide robust isolation and protection features.

General Features
All devices are designed for DIN-rail mounting, with screw terminals for secure connections. They operate within a wide temperature range and offer LED indicators for operational status.

Overview
The document provides technical specifications and features of various temperature and signal converters, specifically the PXT-10/11, PXT-20, PXR-10, and PXF-10 models. These devices convert temperature or resistance inputs into analogue signals suitable for PLCs or controllers with only analogue inputs.

Specifications

Input Types: Pt100/Pt1000 probes for temperature converters, and resistance inputs for the PXR-10.
Temperature Range: -50 to 300°C and -50 to 100°C for temperature converters.
Output Signals: Options include 0-10VDC, 2-10VDC, 0-20mA, and 4-20mA, selectable via terminals.
Adjustments: Output offset and gain can be adjusted by ±5%.
Isolation: Galvanic isolation of 3.75kV AC for 1 minute between supply, input, and output.
Operating Voltage: Various options including 24VDC, 24VAC, 115VAC, and 230VAC.

Features

LED indicators for operating voltage and input levels below 5%.
Compliance with safety and EMC standards such as EN60204-1, EN61010, and IEC414.
CE-marked for EMC and Low Voltage Directive compliance.

Technical Data

Accuracy: Less than 1% without adjustment.
Linearity: Less than 0.05% of full scale for PXT models and 0.15% for PXR-10.
Temperature Coefficient: 0.02%/°C.
Ripple: Less than 0.1% RMS.
Environmental Conditions: Operating temperature range from -20 to 55°C, storage from -40 to 80°C.

Mechanical Dimensions
All models have similar dimensions of 80.0 mm x 104.0 mm x 22.5 mm, suitable for 35mm DIN-rail mounting.

Applications
These converters are used in applications where temperature or resistance measurements need to be converted to analogue signals for PLCs or controllers, providing galvanic isolation to prevent potential differences.

Specifications
The document outlines the specifications for the PXF-20 and PXC-10 signal converters. Both devices comply with various international standards, including EN60204-1, VDE0113, EN61010 for electrical safety, and EMC standards EN50081-1 and EN50082-2. They are designed to withstand humidity (IEC68-2-3), vibration (IEC68-2-6), and shock (IEC68-2-27). Both are CE-marked in accordance with EMC and Low Voltage Directives.

PXF-20 Frequency to Analogue Converter
This device converts frequency inputs to analogue signals. It supports NPN/PNP/NAMUR inputs across five frequency ranges (0-5kHz). The output can be adjusted for offset and gain by ±5%. It operates on a supply voltage of 24-48V AC/DC or 115-230V AC and provides galvanic isolation between supply and output. The device is equipped with a yellow LED to indicate input levels below 5%.

PXC-10 AC Current to Process Signal Converter
The PXC-10 converts AC current signals to analogue process signals, suitable for interfacing with PLCs. It supports input ranges of 0-1A AC and 0-5A AC, with outputs adjustable for offset and gain by ±5%. The device operates on a supply voltage of 12-48V AC/DC or 115-230V AC, with galvanic isolation of 3.75kV AC between input, output, and supply. It features a green LED for operating voltage and a yellow LED for input levels below 5%.

Technical Data
Both converters offer high accuracy and linearity, with adjustable output signals. The PXF-20 provides outputs of 4-20mA, 0-20mA, 0-10V, and 2-10V, while the PXC-10 offers similar outputs with a maximum impedance of 500 Ohms. Both devices are designed for DIN-rail mounting and feature IP20 protection.

Mechanical Dimensions
The devices have compact dimensions of 80mm x 104mm x 22.5mm, making them suitable for various industrial applications.

Catalog excerpts

Signal Converters & Isolators Introduction & Selection Guide INTRODUCTION Process control and monitoring systems often utilise a large number of standard process signals; Voltage levels, current loops, temperature and pulsed signals to name but a few. When designing a system from scratch it may be possible to exactly match each type of sensor to a controller, but it is not always cost effective to do so. PLCs and other controllers tend to be built in modular form, so to purchase a block of 8 analogue inputs just to cope with 1 analogue signal can be a very expensive exercise. When it comes to modifying existing systems, the problem becomes even worse. A substantial rebuild of the system is often necessary just to provide the facillity of 1 or 2 extra inputs.Fortunately, a simple, cost effective solution is at hand - the PX range of treshold and signal converters. With Brodersen PX Process Signal Conditioners, signals can be converted from one standard to another and even an analogue signal can be effectively fed into a digital input. The PX Signal Conditioner is a high quality product which has been designed and tested to the latest requirements for EMC immunity/emission and the low voltage directive (CE marked). The PX Signal Conditioner also provides a galvanic isolation of 3.75kV. The PX relay is of a new design, supplied in a standardised industrial housing, 22.5mm wide, for mounting on 35mm symmetrical DIN-rail with touch-proof, combi notch-screw terminals. A snap-on cover on the front of the relay conceals the adjustment potentiometres. E-mail: [email protected] '"OHJ.NI Ot-IXd | OZ-lXd | OZ-DXd | tt/Ot-lXd | OZ-lXd | Ot-dXd Ot-dXd | OZ-dXd | Ot-QXd

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DESCRIPTION A threshold relay for the monitoring or control of common types of process signals. The process signal to be monitored is selected on the front panel and the threshold value is also adjusted via a setpoint potentiometer on the front of the relay. As the input signal attains the threshold plus the hysteresis the output relay energises. When the input signal drops and passes the threshold, minus hysteresis, the relay de-energises. The hysteresis is adjustable on the front, ±0,5 - 20%. By strapping 2 terminals, the relay can be inverted. A red LED indicates if the relay is energised....

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Input: Input signal 0-5V DC 0-10V DC -10-+10V DC 0-20mA DC 4-20mA DC Selected via switches on the front panel. Hysteresis: ±0,5-20% of range, adjustable. Response time: Time constant (t = approx. 0,3s, worst case of response time max. 5xt ). Upper critical frequency 30 Hz. Output: SPDT relay: Max load AC: Max load DC: Max. in rush current: Min. in rush current: Frequency : Life span: Delay: Contact material, AgNi 0,15 with hardened gold plating Au. 8A/240V AC (cos 9=1) Max. breaking capacity2000VA. Inductive load. See fig. 1. 8A/24V DC. Max. breaking capacity 50-270W. See fig. 2. 15A (max. 4s/duty...

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Input: Input signal 0-5V DC 0-10V DC -10-+10V DC 0-20mA DC 4-20mA DC Selected via switch on the front panel. Hysteresis: ±0,5-20% of range, adjustable. Response time: Time constant (t = approx. 0,1s, worst case of response time max. 5xt ). Upper critical frequency 30 Hz. Output: Solid state (NO/NC) UMAX = ±35V DC/24VAC Lax = 100mA On resistor min. 15 ohm, max. 35 ohm. Off state leak = max. 1pA. See fig. 1. Supply voltage: Versions: 924 = 24V DC (20,4-27,6)V DC General data: Ambient temperature:-20 to 55°C. Storage temperature:-40 to 80°C. Mounting: 35mm DIN-rail (EN50022). Terminals: Screw terminals...

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Signal Converters & Isolators Process Signal Converter PXU-20 DESCRIPTION Signal converter for the conversion of an analogue process signal to another type and /or to provide galvanic isolation. A typical application would be to convert a signal from a probe, not directly compatible with an analogue input of a PLC and/or provide galvanic isolation between input and output. Input, output and operating voltage are isolated to 3,75kV AC and are therefore suitable for applications suffering from potential differences/ground loops, high load resistor by long probe cables. Input is selected via switches...

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Input signal Input signal 0-5V DC 0-10V DC -10-+10V DC 0-20mA DC 4-20mA DC Selected via switches on the front Upper critical frequency 30 Hz. Signal Converters & Isolators Process Signal Converter PXU-20 SPECIFICATIONS: Output: Output signal 4-20mA DC 0-20mA DC 0-10V DC R r*MAX 500 Ohm 500 Ohm via intern 500 Ohm shunt Offset(zero) and gain(span) are adjustable ±5%. See. fig. 1. Accuracy: Linearity: Temp. coefficient Ripple (RMS): <1%, without adjustment. <0,05% of full scale. 0,02%/°C. <0,1%. Supply voltage: Supply voltage 24V DC (20,4-27,6)V DC 24V AC (20,4-27,6)V AC 110-230V AC (95-265)V AC...

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Signal Converters & Isolators Temperature Converter PXT-10/11 WIRING DIAGRAM Temperature converter for converting a temperature to an analogue process signal. The temperature converter has an Pt100/Pt1000 input in two ranges -50-300°C and -50-100°C. A typical application is where temperature measurement is required and when a PLC/ Controller only has analogue inputs. The temperature range for input and type of analogue output are selected via choice of terminal - see connection diagram. Features • Pt100/Pt1000 probe input with/without compensation for cable resistance in two ranges -50 to 300°C...

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Signal Converters & Isolators

Signal Converters & Isolators

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