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FAQ Is an FCC radio identifier or license required for ultrasonic level transmitters, controllers or transducers?

Question:  Is an FCC radio identifier or license required for ultrasonic level transmitters, controllers or transducers? ...

08/29/2013
ID: 79691737
FAQ Auto False Echo Suppression Retention after Master Reset

Question: If I perform a Master Reset, do I have to perform another Auto False Echo Suppression? ...

10/17/2012
ID: 65081174
FAQ What is the relationship between the speed of sound and its’ carrier medium?

QUESTION:  What is the relationship between the speed of sound and its’ carrier medium? ANSWER:  Different gasses have their own speed of sounds, for example Nitrogen 334m/s @ 0°C, Methane 430m/s @ 0°C . Provided the layer of gas above the medium is homogeneous there is the capability to compensate for this speed of sound change, this can be done using the parameter (P653) by programming the speed of sound values related to the gas above the medium, or this ...

10/28/2004
ID: 19780685
FAQ What happens if the ultrasonic sensor is flooded?

QUESTION:  What happens if the ultrasonic sensor is flooded? ANSWER:  Should the sensor be flooded, the contact of the sensor with the liquid will cause the instrument to operate like sonar, and because sound travels four times faster in water, objects like the tank bottom may be displayed as ¾ of the measurement range. But this is also not clearly defined, and this situation should be avoided. We do have an additional transducer option available that may ...

10/28/2004
ID: 19780169
FAQ What sort of response could I expect to see when the level enters the sensors blanking distance?

QUESTION:  What sort of response could I expect to see when the level enters the sensors blanking distance? ANSWER:  The reaction of the instrument under these conditions is difficult to predict. In most cases when the true level echo enters the blanking distance, the echo will be rejected and the first multiple echo will be selected as the valid echo. ...

10/28/2004
ID: 19781990
FAQ What should be done in a situation where high noise (electrical and acoustic disturbance) is seen?

QUESTION:  What should be done in a situation where high noise (electrical and acoustic disturbance) is seen? ANSWER:  High noise levels result in the return echo, effectively being drowned and subsequently offering a low signal to noise ratio and thus an undefined echo. Therefore there is a high importance in keeping the noise value as low as possible. In parameter P807 the value of the noise can be displayed. (e.g. 5:10 (average:peak)) As a general rule: ...

10/28/2004
ID: 19781904
FAQ Is it possible to shorten or extend the transducer cable?

QUESTION:  Is it possible to shorten or extend the transducer cable? ANSWER:  Yes the cable can with shortened without any problem. Just take care that you are able to connect the cable. For cable extension please see the instruction manual, to choose right cable type and with correct values . ...

10/28/2004
ID: 19781553
FAQ What is the relationship between temperature and speed of sound?

QUESTION:  What is the relationship between temperature and speed of sound? ANSWER:  The higher the temperature the faster the speed of sound. For example, 344 m/s @ 20°C and 349 m/s @ 30°C ...

10/28/2004
ID: 19779577
FAQ Has the SmartLinx® product support disk been updated to show examples of the new scalable application layer feature?

QUESTION: Has the SmartLinx® product support disk been updated to show examples of the new scalable application layer feature? ANSWER: No, the support disks demonstrate how to integrate a unit with the full application layer. However, in Appendix A of the SmartLinx instruction manuals, examples demonstrate the new parameter functionality and how to change the configuration of the network. ...

02/17/2004
ID: 18493555
FAQ Can I use Dolphin Plus to program the new parameter?

QUESTION: Can I use Dolphin Plus to program the new parameter? ANSWER: Dolphin Plus does not currently support this parameter, but it will be included in the next release of the programming software. ...

02/17/2004
ID: 18493983
FAQ Why is this new feature only offered for PROFIBUS DP, DeviceNetTM and A-B® RIO? Why is it not offered for Modbus® RTU or Modem cards?

QUESTION: Why is this new feature only offered for PROFIBUS DP, DeviceNetTM and A-B® RIO? Why is it not offered for Modbus® RTU or Modem cards? ...

02/17/2004
ID: 18494529
FAQ Why was a scaleable application layer added to SmartLinx®?

QUESTION: Why was a scaleable application layer added to SmartLinx®? ANSWER: Users requested the functionality. Memory in PLC (Programmable Logic controllers) is valuable, and users did not want to waist memory. As well, bandwidth is valuable. By reducing the bandwidth used by the device, users can fit more devices onto a network, making the network more powerful and efficient. ...

02/17/2004
ID: 18495086
 
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