Electronic Components Datasheet Search |
|
DMS-20PC-3-BS-C Datasheet(PDF) 4 Page - Murata Power Solutions Inc. |
|
DMS-20PC-3-BS-C Datasheet(HTML) 4 Page - Murata Power Solutions Inc. |
4 / 6 page Figure 3. Differential Input Configuration R2 R1 + R2 x VIN = Reading 50k < R1 + R2 < 10M Figure 6. Floating Input Measurements (Alternate Configuration) Figure 5. Floating Input Measurements Figure 4. Input Attenuation Circuit RShunt = R1 = VFsr /IFsr Where: VFsr = Full scale reading (in Volts) IFsr = Relative full scale current (in Amps) 2. Differential Input Configurations: Differential measurements can be made with all DMS-20PC meters. Figure 3, though not a practical real-world application, uses a voltage divider to demonstrate the concept of a differential input signal. Be care- ful not to exceed the ±2V common mode voltage limitation for 5V-powered meters. 3. Engineering Scaling: For measuring voltages greater than the full scale input range of a given meter, the input signal must be attenuated. A simple voltage divider (similar to that shown in Figure 4) will scale the input to within the range of the selected meter. R1 and R2 should be precision, ±1%, metal-film resistors with absolute TCR's less than 50ppm/°C. See Ap Note 4 for more information on engineering scaling. 4. Floating Signal Source Measurements: Floating signals can be measured using the circuits shown in Figures 5 and 6. Connecting pin 10 (ANALOG COMMON) or pin 3 (5V RETURN) to (–) INPUT LO (pin 12) provides the reference point for the meter’s input. A "floating" input is a signal that has no galvanic connection to the meter's power supply. In the figures below, the 1.5V battery illustrates a true floating input. 5. Process Control (4-to-20mA) Measurements: In many common process-control applications, a 4-to-20mA current loop is used to transmit information. Because DMS-20PC meters have such high input impedance, a simple shunt resistor across the meter's input can be used to convert the loop current to a voltage. See Figure 7. The value of the shunt resistor is a function of the scaling require- ments of the particular application and can be calculated using the following equation: 1 12 3 +5V SUP (–) IN LO 5V RET 11 (+) IN HI 6 AC to DC Converter DMS-20PC-1 R2 R1 R3 1k 1k 1k 8 7 REF IN DP1 REF OUT 2 DISPLAY ENABLE DATEL DMS-PS1-CM 85-264Vac DMS-20PC-1 R2 11 12 (+) IN HI (–) IN LO VIN R1 – 13 +5V SUP 5V RET AC to DC Converter 8 7 REF OUT REF IN 2 DISPLAY ENABLE DATEL DMS-PS1-CM 85-264Vac 13 +5V SUP 6 DP1 AC to DC Converter DMS-20PC-1 12 (–) IN LO 11 (+) IN HI 1.5V CELL – 8 7 REF OUT REF IN 2 DISPLAY ENABLE 5V RET DATEL DMS-PS1-CM 85-264Vac DMS-20PC-1 12 (–) IN LO 10 ANA COMM 11 (+) IN HI 1.5V CELL – 8 7 REF OUT REF IN 13 +5V SUP 6 DP1 AC to DC Converter 2 DISPLAY ENABLE 5V RET DATEL DMS-PS1-CM 85-264Vac Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 www.murata-ps.com DMS-20PC Series 3½ Digit, LED Display, Low-Cost, Subminiature Digital Panel Voltmeters MPM_DMS_20PC.D02 Page 4 of 6 APPLICATIONS |
Similar Part No. - DMS-20PC-3-BS-C |
|
Similar Description - DMS-20PC-3-BS-C |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |