tk8000-ex repeating current input and output barrier
http://www.ahdqjt.com time: 11/26/10 15:53general description
tk8000-ex repeating current input and output barrier,can prevent dangerous energy fleeing from the safe side to a dangerous place. and the 4 ~ 20 ma dc signal can be converted linearly to 4 ~ 20 ma dc signal output after energy restriction (see function diagram). after hazardous energy is restored, it can automatically resume normal operation, which is different from other zener barriers.
main technical parameters
explosion-proof marker:[exia] ⅱc
the danger zone input: 4~20ma dc signal
the safety zone output: 4~20ma dc signal
output load: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)
(among terminals 9、10、13 and 14)
u0=30v、i0=26ma、c0=0.4μf、l0=1mh、p0=0.78w
applying to field devices: the two-wire transmitter and 4 ~ 20ma dc current signal from other equipments.
instrument selection
type |
input signal |
output signal |
channels |
tk8091-ex |
4~20ma dc |
4~20ma dc |
single |
tk8092-ex |
4~20ma dc |
4~20ma dc |
double |
tk8093-ex |
4~20ma dc |
4~20ma dc |
single |
tk8094-ex |
4~20ma dc |
4~20ma dc |
double |
tk8095-ex |
4~20ma dc |
1~5v dc |
single |
tk8096-ex |
4~20ma dc |
1~5v dc |
double |
meters
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