LEVEL DETECTION RADIOMETRIC SENSOR NAME ADDITIONAL REQUIREMENTS FOR LEVEL DETECTION SEE COMMERCIAL REFERENCE VEGA-POINTRAC 31 OBS: – MEASURING RANGE 152 TO 304 MM (6 TO 12 INCHES); – REPRODUCIBILITY ±0.5% WITH -40 TO 60 DEGREES C; – AMBIENT. STORAGE AND TRANSPORT TEMPERATURE -40 TO 60 DEGREES C; – VOLTAGE SUPPLY: – SERVICE VOLTAGE 20 TO 72 VCC; 20 TO 253 V AC. 50/60 HZ; – MAXIMUM POWER CONSUMPTION 4 W/6 VA; – ANALOG INPUT: – INPUT TYPE 4 TO 20 MA PASSIVE; – INTERNAL LOAD 250 OHMS; – SWITCHING INPUT: – INPUT TYPE: – OPEN COLLECTOR 10 MA; – RELAY CONTACT 100 MA; – RELAY OUTPUT – MIN. SWITCHING VOLTAGE. 10 MV. MAX. 253 VCA. 253 VCC; – MIN. CONTACT CURRENT. 10 AI. MAX. 3 TO AC. 1 TO DC; – MIN. CONTACT POWER. 50 MW. MAX. 750 VA AC. 40 W CC; – CURRENT OUTPUT: – 8/16 MA/HART RANGE. ACTIVE OR PASSIVE; – MAXIMUM LOAD 500 U (300 U WITH INTRINSIC SAFETY); – SWITCHING OUTPUT: – TYPE OF OUTPUT NPN TRANSISTOR OUTPUT (POTENTIAL FREE); – SWITCHING VOLTAGE < 55 VCC; – LOAD CURRENT < 400 MA; – OPTIONAL SIL RATING UP TO SIL2; – MATERIALS/BINDER: – STAINLESS STEEL DETECTOR TUBE; – POLYVINYL FLICKER MATERIAL (PVT); – HOUSING MODEL: – STAINLESS STEEL WITH PROTECTION DEGREE IP 67; – ELECTRONIC SYSTEM MODEL: – ONE 8/16 MA/HART OUTPUT AND DIGITAL OUTPUTS WITH PROFIBUS PA AND FOUNDATION FIELDBUS.
The impact of the 4D printer on the international market
The most obvious advantage of 4D printing is that objects larger than printers can be printed as just one part. Because they can shrink and unfold, items that are too large to fit in a printer can be compressed and then become full size.
