DMS-40PC-1 ETC1 [List of Unclassifed Manufacturers], DMS-40PC-1 Datasheet
DMS-40PC-1
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DMS-40PC-1 Summary of contents
Page 1
... LED's are available in red, yellow and green colors. Red LED's are also offered in high-intensity or low-power versions. The versatile design of the DMS-40PC Series assures trouble-free installation and long-term operation. Differential input voltage ranges include ±2V, ±20V and ±200V. Input impedance is a minimum 800k . Non-inverting inputs are overvoltage protected to ± ...
Page 2
... BCD outputs are only available on standard red meters. DMS-40PC-1-RS-BCD for ±2V input range DMS-40PC-2-RS-BCD for ±20V input range DMS-40PC-3-RS-BCD for ±200V input range DMS-40PC-1-RL-BCD for ±2V input range DMS-40PC-2-RL-BCD for ±20V input range DMS-40PC-3-RL-BCD for ±200V input range Accessories: DMS-PS1-CM +5V/1 ...
Page 3
... In these high-voltage cases, pin 12 should always be tied to pin 3 (5V RETURN). One of the simplified schematic's more noteworthy features is that it shows some DMS-40PC internal voltage values and also that pin 3 is the meter's zero-volt reference point — regardless of the type of power or signal source used. This is an important point to keep in mind when using digital multimeters to perform system-level measurements ...
Page 4
... Figure 4. 4.5-18V Power Supply Monitor 4. Floating Signal Source Measurements: A floating input is a signal that, before it is applied to the DMS-40PC's inputs, has no galvanic connection (direct current path) to the meter or the meter's power supply. The circuit shown in Figure 5 illustrates the necessary connections for measuring floating inputs. The 1 ...
Page 5
... Either edge can be used since STROBE (~ 5µsec wide) is active only in the center of the corresponding DIGIT DRIVE and BCD DATA outputs. POLARITY (pin F): This pin, which is also used inside the DMS- 40PC to drive the negative-sign segment, indicates whether the last input signal conversion was positive (POLARITY set high) or negative (POLARITY set low) ...
Page 6
... CALIBRATION POTENTIOMETER HOLE LOCATION PIN 1 0.325 (8.26) 0.125 (3.175) DIAMETER (USE ONLY WHEN PC BOARD MOUNTING) 0.040 (1.02) OPTIONAL BEZEL (DMS-BZL1 and DMS-BZL2) #2-56 INSERT 0.156 (3.96) DEEP FRONT VIEW 2.55 (64.77) RECOMMENDED DRILL AND PANEL CUTOUT DIMENSIONS INTERNAL CORNER RADII: 0.032 (0.81) MAX. 1.07 PANEL CUTOUT (27 ...