DSE ODS Black-Line Non-Contact Sensors


Manufacturer: DSE
Model: ODS Black-Line Series
Voltage Output: 1 - 9Vdc
Current Output: 4 - 20mA
Digital Output: RS232C
Baud Rate: 38400 bps
Supply Voltage: 24Vdc ± 10%
Power Consumption: 4.5 watts (max)
Operating Temp: 0 to +45°C
Storage Temp: -20 to +70°C
Humidity (non condensing): Max 90% RH
Degree of Protection: IEC IP65
Dimensions: 136 x 146 x 50mm
Weight (exc.cable): 1600g
Cable Length: 2.5m
Housing: Steel / Aluminium

^ The programmability of the sensor are not implemented here (ie. no choice of models)
* Data for digital output. Analog outputs Resolution & Reproducibility <0.05mm

** Static measurement on white paper without any averaging of the output signals, sampling and output frequency being equal
*** 2-Select Models sample and output at a 2kHz frequency. Baud rate is 115200. 2-Select Models have no Voltage output

ODS Black-Line
The ODS Black-line range of non-contact sensors use the optical triangulation principle. A collimated laser beam forms a visible light spot onto the surface of the object being measured, and the angle which the light spot emits is detected and received by a high resolution CCD camera, making it possible to calculate the measured distance.
All ODS sensors have a built-in automatic light intensity control which by continuously working with optimal measuring light, the unique measuring capabilities of the ODS range are achieved. These compact sensors are unaffected by large variations in surface, colour or structure. This means that the DSE sensors can be used on almost any surface; from liquids and soft materials to paper, plastic, wood, metal and stone. Thickness measurement is achieved by using two sensors which when connected together, automatically synchronise as master and slave. By adjusting the updating frequency of both sensors, it is possible to measure semi-transparent objects.
The ODS sensors simultaneously provide 3 measurement outputs; analogue 1-9 Vdc voltage, 4-20mA current loop and a digital RS232C interface with a data rate of 38400 bps. Data display and analysis software is included with each sensor. Six Black-line standard models are available with measuring distances of 30 to 700mm over a stand-off range of 100 to 1100mm, respectively. The resolution ranges from < 2µm (ODS 115) to 0.5mm (ODS 750).
The ODS range are designed as a self-contained unit with all components fitting inside a rugged steel housing that measures 136 x 146 x 50mm and weighs 1.6kg. The ODS sensor range has a protection design grade to IEC IP65.
Typical application examples for the ODS sensors include; filling operations where the levels are monitored, constant tension control, monitoring vibration or wear on a rotating object and, in a rolling process where thickness measurement is monitored.

ODS Black-line Select Models (versions available for ODS 200, ODS 250, ODS 450 and ODS 750)
Programmable version of the ODS range with 4 modes of operation:
- Group mode - offering averaging after filtering out zero values
- Stop & Go - measuring activity via RS232
- Level mode - will output distance reading that are reversed
- Extended thickness mode - doubles the measuring range at half the resolution (when compared to standard thickness mode)
The ODS Select sensors are programmed with the PC software supplied with the sensor. The program receives data from the ODS Select Model and displays the measured distance on the screen. When the sensor is specially hardwired the same program will be able to send data to the sensor. The instructions given are stored in the sensor memory and are used every time power is switched on until the ODS Select is reprogrammed. Select models and Standard model will automatically turn into thickness (difference) measurement mode when they are connected to an ODS sensor of the same type and model. No additional control box is needed.
The select models provide a choice between double measurement range with half resolution or full resolution with standard measuring range. The user can define a number of consecutive measurements to be a Group of values. The sensors in this Mode is able to update the Group with a new measurment result at 1kHz and output the Group average at the same rate. Furthermore the user can instruct the sensor to disregard up to a certain number of void measurements with null-values in the Group, and have the output calculated as the average of the remaining values in the Group.

ODS 2-Select Models (versions available for ODS 115, ODS 150, ODS 200, ODS 250, ODS 450 and ODS 750)
The high performance version of the ODS range, offering the benefits of increased measuring performance by run time time programmability on:
- moving targets
- angled surfaces
- colourful surfaces
- shiny/difficult surfaces
- 'transparent' surfaces
The 2-Select sensors obtain higher performance compared to the Standard models by:
- Operating at twice the measuring and output frequency (eg 2000Hz)
- Utilising mathematically optimised intensity control of the laser light
- Offering elimanation of light penetrating into partly transparent surfaces
- Providing opportunity for changing the sensor parameters during operation
- Providing "STOP and GO" functions to meaure activity via RS232 in all modes
- Providing "Level - Mode" output, where the measuring results are "reversed"
- Providing a serial RS232 output as well as an analogue 4-20mA current signal
- Selectable software facilities embedded in the sensors are not implemented in ODS 115 and ODS 150 models.

ODS HT "High Temperature" Models (high target temperature versions for ODS 115, ODS 150, ODS 200, ODS 250, ODS 450 and ODS 750)
The HT models are designed for target surfaces with high temperatures up to 1200°C. The ODS HT sensors are especially useful for use on very hot objects such as hot rolled steel or molten metals. The HT models are like other ODS sensors and designed to give good measuring accuracy over a large measuring range. Almost all ODS Black-line sensors offered in the HT versions give the best compromise between measuring range and accuracy. Many heavy industry applications require either thickness or width measurement. The ODS HT models have the same advantage od automatic configuration for thickness inbuilt in all ODS models. Any two identical ODS HT sensor's will form a complete measuring system for thickness and width. The HT Select model can filter and average the digital values before being output in 4-20mA form.

ODS Thickness Measurement
All ODS distance sensor's will automatically turn into a Master & Slave part of a thickness measuring system, when connected to an identical ODS sensor. The 'master' sensor reads the digital distance data send from the 'slave' sensor over the RS232 serial interface, and after taking its own distance information into account, it will output the change in thickness in its calcualated digital form as well as a converted analogue signal. A couple of ODS sensors will measure thickness, width or difference without any control box or special calibration from the factory. This unique characteristic of the ODS sensors are available in the Standard version as well as in the Select, 2-Select and HT 'High Temperature' models of the Black-line series.