DMS-20LCD-1-5-C Murata Power Solutions Inc, DMS-20LCD-1-5-C Datasheet
DMS-20LCD-1-5-C
Specifications of DMS-20LCD-1-5-C
DMS-20LCD-1-5-C Summary of contents
Page 1
... CMV of ±2V. Non-inverting inputs are overvoltage protected to ±100V (±250V for the ±200V input model). All DMS-20LCD meters operate from a single +5V supply (drawing 400μ single +9V supply/battery (drawing 230μA). All models have a low-battery ("B") annunciator and feature autopolarity changeover and overrange indication. ...
Page 2
... Decimal Point Placement: The location of the decimal point is user- selectable, and the decimal point control pins (DP1-DP3) are active low functions. Select the appropriate decimal point by tying the appropriate pin (pin pin 3 (5V RETURN/–BATTERY). Unused decimal email: sales@murata-ps.com 05 Apr 2011 MPM_DMS20LCD.B08 Page – +60 °C – ...
Page 3
... The circuit shown in Figure 9 provides ±10% range of adjustment. 7. Soldering Methods: All models in the DMS-20LCD Series easily withstand most common wave soldering operations. We recom- mend, however, that you evaluate the effects your particular soldering techniques may have on the meter’ ...
Page 4
... Figure 6. Floating Input Measurements (9V-Powered Models) process-control applications, a 4-to-20mA current loop is used to transmit information. Because DMS-20LCD 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 ...
Page 5
... The circuit can be calibrated by fi rst measuring the actual battery volt- age with another meter and then adjusting the gain-adjust potentiom- eter on the back of the DMS-20LCD until a similar reading is obtained. If possible, the resistors in the divider should be ±1% metal-fi lm types with TCR’s less than 50ppm/°C. ...
Page 6
... TYP. 0.040 (1.02) 0.50 (12.7) BEZEL INSTALLATION PANEL BEZEL RETAINING CLIP INSTALLATION email: sales@murata-ps.com 05 Apr 2011 MPM_DMS20LCD.B08 Page (–) INPUT LO 11 (+) INPUT HI 10 ANALOG COMMON 9 N.C./BACKLIGHT 8 REFERENCE OUT 7 REFERENCE IN 0.425 (10.80) 0.25 (6.4) TYP. ...