Analog Multiplexer (AFM-16)

16, 4-20 ma inputs, 2 fiber optic outputs, high accuracy and based on micro-processor are the highlights of our analog multiplexer (afm-16), which is why it is extensively in demand. we make sure that the analog multiplexer is designed and produced in sync with the stated quality norms. we are a top-notch manufacturer and supplier of analog multiplexer (afm-16). buyers can get it from us at the most reasonable prices!
details :

• the afm-16 analog multiplexer receives 16 process current inputs and output them sequentially via two parallel fiber-optic outputs. the afm-16 instrument is an all sold-state unit offering outstanding reliability. the multiplexer is controlled by a micro-processor which handles the scan-rate, the data conversion, the output transmission and the power supply/battery back-up.
• the selected input digitally converted at 12 bit resolution and transmitted by two fiber optic led
• transmitters connected in parallel in a transfer rate of 345 kbaud. the afm-16 supervises the system power sources. the unit receives two voltage sources. one source is the main 24 vdc power supply and the second is a 24 vdc battery back-up input.
• the afm-16 continuously monitors the main supply and routs it to a continuous system use consisting of the afm-16 multiplexer and via it to all the analog transmitters connected. when power fail is detected, the afm-16 enters to power saving mode by applying the back-up battery as the system power supply for one second operation every three minuets.
• the transmitted data is tagged with a special code indicating power fail mode of operation. the afm-16 is equipped with battery periodically check routine detecting "low-battery" status. alert is provided by special code indicating "battery replacement" alarm.
• the afm-16 routes the power supply for the two wire transmitters connected via 16 individual 22 ma current limiters which prevent system collapse due to short-circuited input. the afm-16 is housed in a polycarbonate enclosure which can be mounted either on a 35 mm standard din rail.

specifications :

• inputs : 16, 4-20 ma current loops
• input impedance : 350
• outputs : 2 fiber optic (main and backup)
• fiber-optic connectors : st-3 type
• wave length : 820 - 860 nm
• conversion resolution : 12 bits
• accuracy : better than 0.1% of span
• scan rate : 15 msec/16 channels
• data transfer rate : 345.6 kbaud

power supply :

• main supply : 24 vdc ±10%
• battery : 21.6 - 24 vdc
• supply consumption : 200ma

indicators :

• 1 yellow led, power "on" indicator
• 16 red led, current inputs' activity
• operating temperature : 0 - 70°c
• storage temperature : -25 to +85°c
• humidity : 5 - 95% relative, non condensed
• fuse : 630 ma, 5x20 mm fast blown
• housing : plastic polycarbonate
• box : according to ip50 din 40050
• terminals : according to ip20 din 40050
• weight : 0.9 kg