Mipex MIPEX-02 1 Series, Руководство пользователя

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OPTOSENSE LLC
Design Department
USER MANUAL
SMALL-SIZE EXPLOSIVE GAS MEASURING SENSOR MIPEX-02-
Х-X-X.1 X
File name: ESAT.413347.006 UM v.2.0.docx Revision 2.0 27 August 2015 Page. 21 of 38
THE SOLE PROPERTY OF OPTOSENSE LLC. ANY REPRODUCTION WITHOUT THE WRITTEN PERMISSION OF OPTOSENSE LLC IS PROHIBITED.
Appendix B. Connection diagram.
Fig. 5. Connection diagram for MIPEX-02-
Х-XХ-X.1
Fig. 6 Connection diagram for MIPEX-02 with USB-MIPEX converter during testing.
In Fig. 7 presented
an example of sensor connection to “ia” intrinsic safety with the following
characteristics:
R value between 25…30Ohm, C = 20uF or over. For any other R more than
30Ohm, use the next equipment to found a minimum necessary capacitance: C(uF) = 2/3*R(Ohm).
For increased input power voltage upper than 5V it is needed to recalculate minimum
allowable resistance which will completely consistent for our explosion safety parameters.
In very low power applications it is possible to reduce leakage current through the diodes
using a micropower shunt voltage reference instead such as LM4040 or similar, protected against
reverse voltages by using Schottky diodes.