tk8000-ex isolated barrier on detection and operating side
http://www.ahdqjt.com time: 11/26/10 15:46general description
tk8000-ex isolated barrier on detection and operating side, provide isolated dc power to transmitter. the 4 ~ 20ma current signal generated from transmitter is conveyed from the danger zone to the separate security 4 ~ 20ma / 1 ~ 5v zone. another 4 ~ 20ma signal from the regulator (operator) transmits to the actuator after isolation, and limits dangerous energy fleeing from the safe side into a dangerous place.
main technical parameters
explosion-proof marker:[exib]ⅱc
power consumption: about 3w(24v power supply, when the output is 20ma)
the danger zone output:4~20madc actuator supply
the safety zone input:4~20ma dc
tk8000-ex,tk8000-ex(v)
signal:4~20ma,1~5v
output load:100~650ω,250ω(internal)
output accuracy:0.1% f.s
temperature drift:0.01% f.s/℃
continuous operating temperature: -20~+60℃
certified by china national quality supervision and test center for explosion protected electrical products(cqst) (between terminals 9 and 10)
uo≤30v,io≤26ma,co≤0.4μf,lo≤1mh,po≤0.78um=250vdc/ac
applying to field devices
4 ~ 20ma dc current signal
instrument selection
type |
input signal |
output signal |
channels |
tk8034-ex |
4~20ma dc |
4~20ma dc/1~5v dc |
double |
meters
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