What is the maximum distance limit of 4-20mA and 0-10V DC
standard signal transmission ?
Answers were Sorted based on User's Feedback
Answer / jobby c johnson
Distance is not a limiting factor for current transmission(4-20mA) where as it is a limitation for voltage transmission. Because based on the resistance the signal seeing there will be a voltage drop. then the voltage signal available at the host end will not be same at the generating side. Based on the distance these deviation will be more.
| Is This Answer Correct ? | 20 Yes | 1 No |
Answer / satya
it is depend on voltage drop between instrument and dcs,
beacuse resistance increases,minimum 80% of rated voltage is
allowed after that may be instruments showing wrong value .
| Is This Answer Correct ? | 1 Yes | 9 No |
What is Actuator?
Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer
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