Omega-speaker-systems OME-DB-889D Manuel d'utilisateur

www.omega.com e-mail: [email protected]’s GuideOME-DB-889D 16-Channel Analog Multiplexer BoardShop online at

2.3 Pin Assignment The OME-DB-889D provides two 37pin D-Sub connector & two 20-pin flat cable connector. The CN1, CN2 D-sub connector is analog

DOn : DO0~DO3 Multiplexer control bit. DO4~DO6 Gain control bit D. GND : Digital Ground +5V : PC’s +5V +12V PC’s +12V OME-DB-889D Us

3 Analog input & Gain setting 3.1 Input Channel Selection The DB-990D provides 15 channel differential analog inputs. Input channel selection

3.2 Gain Setting The high grade instrumentation provides software programmable gains or switch selectable gain of 0.5 1, 5, 10, 50, 100, 500, 1000.

3.3. The Thermocouple Input The OME-DB-889D can accept thermocouple sensor to measure temperature. The OME-DB-889D should be set to different gain va

3.3.1 Voltage - TO - Temperature Conversion The temperature-versus-voltage relationship of a the thermocouple is not linear. You can reference the

3.3 CJC Output The OME-DB-889D provides Cold-Junction Compensation (CJC) for the thermocouple applications. If the CJC is required, place the JP17 in

4 Signal Connection The OME-DB-889D can multiplex up to 16 channel differential inputs. Input channel selection is controlled by a CN3 D4~ D6 digit

4.2 Non-Floating Signal Source Some the signal source has one side connect to a local ground. The signal ground with OME-DB-889D ground will not be s

4.3 Cascading OME-DB-889D OME-A-82X series OME-DB-889D JP16 A/D Channel 0 OME-DB-889D #1 0 A/D Channel 1 OME-DB-889D #2 1 A/D Channel 2 OME-D

Servicing North America:USA: One Omega Drive, P.O. Box 4047ISO 9001 Certified Stamford CT 06907-0047TEL: (203) 359-1660 FAX: (203) 359-7700e-mail: inf

4.4 Open Thermocouple Detection The OME-DB-889D provides open thermocouple detection through a resistor circuitry. These resisters are normally no

4.5 Block Diagram CN4 CN1CN3CN2 AMP16 channel Multiplexer Control Logic CJC Dip SwitchCN8 Connector with R/C filter VR1 VR2 CN6 C

5 Programming The OME-A-82x series multi-function card can support up to 160 channels by cascading 10 OME-DB-889D’s without complex programming. 5.1

5.3 Example Program DEMO_01.C /* ============== Using OME-A-822 / connect one OME-DB-889D =================*/ #include <stdio.h> #include “A8

A822_DO(0x0021); /* Send D/O data to OME-DB-889D , Channel 1, Gain=10 */ delay(10); /* delay about 43u sec , Ref. Page 3 Setting tim

OME-DB-889D User’s Manual 23 6. Calibration The OME-DB-889D is calibrated to its best of operation. For environment subjected to large vibrations,

WARRANTY/DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 13 months from date of

M4019/1103Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course!Shop online at www.omega.comTEMPERATUREThermocouple

OME-DB-889D MULTIPLEXER BOARD ...2 1. FUNCTION DESCRIPTION...

OME-DB-889D Multiplexer Board 1. Function Description The OME-DB-889D is an expansion multiplexer / amplifier board for use with OME-A-82X, OME-PCI-1

Gain Common Mode Rejection Non linearity %of FSR Settling Time 0.5 99dB ±0.0004 23uS 1 99dB ±0.0004 23uS 5 114dB ±0.0004 28uS 10 99dB ±0.0004 28uS

2. Installing 2.1 Layout CJC Output External Voltage Input JP19 JP18VR2 VR1 Jumper /Connector Name Function Note CN1 Connect to A/D c

2.2 Jumper setup 2.2.1 JP0 ~ JP15 Analog Input R/C Filter The OME-DB-889D provides R/C filter with each analog input channel by jumper setting. Ch

2.2.3 JP19 Internal / External Power selection The OME-DB-889D requires single +5V power supply. the connector CN5 are used for the external power s

Remote Gain Control When the JP18 is set to “R”, it means Remote Gain Control is selected and the gain is controlled by the digital signal of connec