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Frequently Asked Questions for our Intelligent Fibre Optic Link Systems
What is the level of Shielding Effectiveness PPM cannot guarantee shielding effectiveness as the number of variables to take into account are countless. We have many satisfied customers in the automotive and military markets using modules in fields regularly exceeding 200V/m and even as high as 30kV/m. PPM would be happy to make demonstration equipment to prove performance in a particular application. What is the maximum input level The maximum input level for a Sentinel or Sentry transmitter is dependant on the gain setting. Please see the chart below:
What is the minimum detectable signal The minimum detectable signal is a function of the Noise Figure, we with point2point AC links. The Sentinel and Sentry products also have preamplification built in to the transmit head. With the maximum of 33dB gain selected the Noise Figure is less than 11dB. Typical detectable signals levels are shown below for a NF of 11dB
The calculation used to obtain the figures above is: What are the NiHM Battery charge and discharge times The NiHM Battery charge time @ 2A for the 3.6Ah battery is -<2 hours and the 2Ah battery is -<1 hours The NiMH Battery discharge time for the 3.6Ah is 8 hours for the DC modules and 15 hours for the AC modules The NiMH Battery discharge time for the 2Ah is 4 hours for the DC modules and 8 hours for the AC modules No each input must be addresses serially. If you have more than one measuring receiver you might consider a second set of transmit and receive modules, or the inclusion of a point2point link. These can be added to the Sentinel and Sentry chassis with ease.
Does the System Controller remember all gain and impedance settings for each input and each transmit module? Yes you only need to define the settings for each input once. The system then stores these settings and applies them each time a particular input is selected. Of course these settings can be changed at any time.
Is LXI supported? At this time LXI is not supported by the Sentinel chassis.
Which components are interchangeable between point2point, Sentinel IIsc & Sentry IIsc?
Support Statement
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sales@ppm.co.uk +44 1793 784389 ©Pulse Power & Measurement Ltd. 2008 |
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