Electronic Components Datasheet Search |
|
DMU-30DCV Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd. |
|
DMU-30DCV Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd. |
1 / 3 page DMU-30DCV Series Ruggedized DC Voltmeters with Daylight Readable Auto-Dimming LED Displays MPM_DMU_30DCV.A05 Page 1 of 3 For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 TB1 TB2 CAL BRIGHTNESS ADJUST REAR VIEW 85-264Vac Power Source Input Signal 1 2 1 2 Figure 1. DMU-30DCV wiring diagram Murata Power Solutions’ DATEL branded DMU-30DCV series of daylight-readable dc voltmeters measure and display dc signals as low as ±200mV and as high as ±200V. Their large 0.56” (14.2mm) high super-bright red LED-display is readable in full sunlight. An auto-dimming circuit automatically adjusts the display brightness for all viewing conditions. DMU-30DCV series dc voltmeters are packaged in a rugged, one-piece polycarbonate plastic housing that features an integrated bezel and gasket assembly. In a typical instal- lation, the housing is secured to a panel with six metallic threaded inserts, allowing the unit to meet NEMA-4 / IP65 requirements for moisture and impact resistance in outdoor applications. DMU-30DCV series dc voltmeters are available in a choice of four input ranges: ±200mVdc (with 0.1mV resolution); ±2Vdc (0.001V resolution); ±20Vdc (0.01V resolution); and ±200Vdc (0.1V resolution). The dc signal under measurement is electrically isolated from the unit’s operating power source. DMU-30DCV series’ miniature size and rugged package are perfect for industrial and high-reliability instrumentation, alternative power generators, and any other application which requires daylight readability and precise monitoring of dc voltages in harsh indoor / outdoor environments. Simply connect the input signal and an 85-264Vac source of operat- ing power to the two rear-mounted terminal blocks and the unit is fully operational. FEATURES ■ Measure and accurately display dc voltages in harsh environments ■ Four input ranges: ±200mVdc, ±2Vdc, ±20Vdc, and ±200Vdc ■ Daylight-readable LED display with automatic brightness adjustment ■ Moisture & impact resistant package offers NEMA-4/IP65 protection ■ Operates from universal 85-264Vac mains, or 110-300Vdc supplies ■ Input circuit fully isolated from ac power supply ■ UL certification pending TECHNICAL NOTES 1. Measurement Type: All DMU-30DCV series dc voltmeters achieve their excellent performance by employing a precision integrating analog-to-digital converter, metal film resistor dividers, and a high-stability voltage reference IC. The LED display is updated approximately 2.5 to 3 times per second. However, while some input filtering is provided, noisy signals may cause the displayed reading to vary by a few counts. 2. Wiring: All ac supply (TB1) and input signal (TB2) wiring must be adequately rated for the voltages and currents they will carry, and must comply with any code or application- mandated requirements pertaining to the user’s specific installation. 3. Power Supply Polarity, Fusing, and Grounding: The operating-supply terminals (TB1-1 and TB1-2) on DMU-30DCV voltmeters are not polarity sensitive, that is, they have no “AC LO” or “AC HI” designations. These units do not include or require a connection to earth/ chassis ground. Refer to Figure 1 for a typical wiring diagram. DMU-30DCV dc voltmeters are not internally fused. If fusing is required, it must be exter- nally user-provided according to the supply wire’s maximum amperage rating. 4. Calibration: Periodic recalibration of DMU-30DCV voltmeters is not required under normal indoor operating environments. However, operation in environments subject to vibration and/or extreme temperature variations should have their accuracy verified on a yearly basis. If recalibration is necessary, it should only be performed by qualified technical personnel. Calibration is performed with potentially lethal voltages applied to the DMU-30DCV and its associated wiring. A plastic, fully-insulated adjusting tool must be used to access the recessed calibration potentiometer located on the back of the unit (see Mechanical Specifications). Contact Murata / DATEL if additional information is required regarding calibration, setup, or any other technical issue pertaining to DMU-30DCV dc voltmeters. IMPORTANT! To ensure safe and reliable operation, DMU-30DCV dc voltmeters must be installed and serviced by qualified technical personnel. Contact Murata / DATEL if there is any doubt regarding installation and/or operation. |
Similar Part No. - DMU-30DCV |
|
Similar Description - DMU-30DCV |
|
|
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 |