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Smart Line is a new series of signal conditioning modules with the following design philosophy

  • Smaller case style.
  • Has a wide range ac/dc power supply.
  • Capable of changing ranges and settings without using test equipment or opening the case.
  • Simple setup and verification process.
  • No trim pots.

We also wanted to have the option of;

  • Display of process variables and graph of real time data.
  • Able to create special calibrations and functions without affecting standard ranges.
SL340 Universal Transmitter

SL340 Universal Transmitter


Smart Selection

Item Available Description
SL303-01 In stock SL Series USB Isolator
SL332-20 In stock Signal Isolator with 10-60Vdc / 16-42V 50/60Hz power supply
SL332-10 In stock Signal Isolator with 80-300Vdc / 80-280Vac 50/60Hz power supply
SL335-20 In stock Signal Splitter with 10-60Vdc / 16-42V 50/60Hz power supply
SL339-20 In stock A cheaper to purchase SL332-20 with more SL300 programming options. (10-60Vdc / 16-42V 50/60Hz power supply)
SL340-20 In stock Universal Transmitter with 10-60Vdc / 16-42V 50/60Hz power supply
SL340-10 In stock Universal Transmitter with 80-300Vdc / 80-280V 50/60Hz power supply
SL300 Icon

The SL300 PC Programmer

This free tool is upgraded with each release of a SL series module. More information on the SL300 PC Programmer is available here.

When used with the SL332/SL335 it can set functions that are not available using the top mounted switches. The SL300 Programmer can read and program all parameters for the entire range of Smart Line signal conditioners.


SL303 USB Connector

The SL303 replaces the COA703 for SL series applications. No more clumsy wires dangling about, no more windows hardware detection problems.

The free revised SL300 software makes programming SL modules easy.

The SL303 is an SL Series USB Isolator which provides galvanic isolation between an SL series signal conditioning module and the USB port on your PC.

Many of you have purchased the SL332 and SL335 modules with switches to set the input and output. Did you know that both of these modules have a user switch position were SL300 software will extended capabilities far beyond other isolators in the same price range.

New SL303

New SL303

The SL340 must be programmed with the SL303 to be programmed as a mV transmitter, Resistance Transmitter, Standard or differential input, Thermocouple Transmitter, Potentiometer Transmitter, RTD Transmitter or Strain Gauge Transmitter.

The SL339 is a SL332 without the top mounted switches.

Ask about getting a free SL303 when purchasing 10 or more SL339 or SL340 modules of the same type at one time.


SL332 Additionl Functions

SL332 has extra features not documented on the data sheet as follows;

Output Full Scale Check

While input code switch is in position 0 the output will go to full scale of the range selected on the output code switch. The output full scale value for each setting is found on the data sheet.

Remote Control Output

The output can be remotely controlled by the SL300 module when the input switch is set to F and the output switch is set to D.

Signal Limiting

The customised output range has signal limiting that can be set using the SL300. This signal limiting is only in effect on the customised range (input and output switches on F) and if it has been enabled by the SL300.


SL335 Additionl Functions

SL335 has extra features not documented on the data sheet as follows;

Output Full Scale Check

While input code switch is in position 0 the outputs will go to full scale of the range selected on the output code switches. The output full scale value for each setting is found on the data sheet.

Remote Control Output

When the input switch is set to F and the output switches are set to to D both outputs are remotely controlled.

When the input switch is set to F, output 1 is set to F and output 2 is set to D then output 1 follows the input and output 2 is remotely controlled.

Signal Limiting

The customised output ranges have individual signal limits. This signal limits are in effect on the customised ranges.

 

SL339 A cheaper isolator with more features.

The SL339-20 is essentially a SL332-22 without the range selection switches fitted. The unit is configured using the SL300 software with no compromises on measurement accuracy and speed.

The SL339-20 packs advanced custom linearisation, signal limiting and direct reverse action into a thin 12.4mm case.

Ask about getting a free SL303 USB Connector when purchasing 10 or more SL339 Signal Isolator or 10 or more
SL340 Universal Transmitter modules at one time.

SL339 Program

SL339 Program


SL340 A Better Universal Isolator

The SL340 is the next generation of Universal Transmitter providing true 3-way galvanic isolation up to 2500Vrms for the following input types;

  • mV
  • Position / Slide wire
  • Potentiometer
  • Resistance
  • RTD
  • Strain Gauge
  • Thermocouple
SL340 Supports Many Probes

SL340 Supports Many Probes

Input and output are set using the SL300 programmer connected to a PC USB via the COA703 interface. The connection socked is accessed under a door flap on the front of the module.

 

Why is SL340 better?

Information

Back in 1999 APCS invented the term Universal Signal Conditioner with the USC701. The unit was designed to replace all other transmitter types so a company could have one unit on the shelf to that could be programmed for the desired function before fitting.

In the market today there are many isolators that claim to have a universal input and cover many mV and temperature ranges.

In many cases these units work well on the specified ranges but when customising the ranges they may suffer from reduced range within the analogue to digital converter on the input or reduced use of the digital to analogue converter on the output. As a result the quoted accuracy will be reduced.

The SL340 has not been designed to replace the USC701. Today’s market requires cheaper isolators and converters that use less power and space. The SL340 represents what the market wants at a completive price.

The SL340 with only four input terminals supports Thermocouple, RTD, Strain Gauge, Resistance, Slide Wire and mV inputs without compromising accuracy.

The programmable input current and voltage sources each have two distinct ranges to maintain accuracy.

The input instrumentation amplifier can be configured as single ended or differential depending on the application. This amplifier has programmable offsets to ensure that the analogue to digital converter is always working over the widest possible range for the user’s input calibration.

Measurements are processed by the input side CPU, this dedicated processing ensures fast conversion to a digital signal that represents the user’s specified input calibration. This digital signal has been corrected to remove standard linearity errors produced by the sensor currently in use (TC, RTD, etc).

A digital data is sent from input to output via an an optical isolator. The output CPU contains an integrated digital to analogue converter and controls the switching of the output range components.

As isolation and output drive method does not rely on pulse width modulation conversion or linear conversion conversion methods no additional linearity and accuracy errors are introduced for a wide range of user defined calibrations.