Lead LD-BK10 Series - 4-20 mA Current Output (Type E)

1. Functional features
On the basis of the general-purpose function transmission of independent 3-way
(4-way) 4~20mA current signals that are in linear correspondence with the mea-
sured temperature value(0.0℃~200.0℃) will link to the distant A/D card directly so
as to set up a distributed control system(DCS).
Within the temperature controller A-, B-, C- and d- are connected mutually,
namely, with co-negative electrode. If your collecting system is in conflict with it,
please specify before placing order.
2. Technical specifications for current output
(1) Load resistance:R≤500Ω
Output accuracy: ±1%
(2) Corresponding curve and relationship formula between measured temperature
and output current of temperature controller
(3) Conversion of output
Relationship formula between temperature and current: I= (16T/200)+4
Where: T stands for temperature value of winding in X-phase
I stands for current value corresponding to the temperature in the phase.
If the user’s collecting system calls for receipt of analogue voltage signals, 250Ω
resistor with high accuracy may be connected in parallel directly at the existing
current output end. Then 1~5V voltage signals may be received immediately and
connected to the load resistance R≥20kΩ.
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4-20mA Current Output (Type E)
15
T(℃)
I(mA
)
4
20
0
2
00