参数资料
型号: DMS-EB-C
厂商: Murata Power Solutions Inc
文件页数: 4/4页
文件大小: 0K
描述: APPLICATION BRD FOR DMS-30/40
标准包装: 12
系列: *
产品目录页面: 2856 (CN2011-ZH PDF)
其它名称: 811-1123
DMS-EB
Multi-Purpose Application Board for DMS-30 & DMS-40 Series Meters
APPLICATIONS
Example
V IN is 0-5Vdc, and the display reading must be "000" to "1500."
1. Assume R1 = 1.0MΩ.
2. R2 = (FSI x R1) / ( |V IN | - FSI)
R2 = (1.500 x 1,000,000) / (5.0 - 1.500)
R2 = 428,571Ω or 432kΩ
3. Calibrate the meter using a known voltage source. Adjust R4 to
compensate for variations in R1 and R2.
7. Current Measurements (Use 200mV Model, DMS-30-0): The follow-
ing instructions are for measuring current derived from the DMS-
30/40's power source. When measuring current that is ?oating with
respect to J1, pin 6 (POWER RETURN), leave SG5 closed.
CAUTION: Do not exceed 1 Ampere input current
7.1. Install R2: R2 = FSR / (I MAX . x 10000) where FSR is the desired
meter reading (0 -1999) and I MAX is between 0 -1 Ampere.
7.2. Open SG5.
7.3. Con?gure the DMS-EB for span adjust using the procedure previ-
ously outlined for the DMS-30-0 version.
7.4. Apply input signal (current) to (+) IN HI and (–) IN LO.
7.5. Adjust R4 for desired full scale readings.
7.6. Enable the appropriate decimal point using either SG1, SG2, SG3
or SG-17.
Example
A 0.100 Ampere input must read "100.0" on the display.
R2 = 1000 / (0.1 x 10000)
R2 = 1 Ohm
Enable DP3 via SG3 for a reading of "100.0."
HI LO TST TST +V
(+) (–) IN OUT
Figure 4. DMS-EB Board
–V
GND
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mans?eld, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Speci?cations are subject to change without
notice. ? 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
MPM_DMS-EB.B02 Page 4 of 4
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