PT8420 Cable Actuated Sensor Industrial 4..20 mA 0..20mA Absolute Linear Position to 60 inches (1524 mm) Aluminum or Stainless Steel Enclosure Options VLS Option to Prevent Free-Release Damage IP68 / NEMA 6 Hazardous Area Certification GENERAL Full Stroke Range Options 0-2 to 0-60 inches Output Signal Options 4...20 mA (2-wire) and 0...20 mA (3-wire) Accuracy see ordering information Repeatability 0.05% full stroke Resolution essentially infinite Measuring Cable Options stainless steel or thermoplastic Enclosure Material powder-painted aluminum or stainless steel Sensor plastic-hybrid precision potentiometer 3.6 91 mm 5.6 141 mm Potentiometer Cycle Life see ordering information Max. Retraction Acceleration see ordering information The PT8420 with its 4-20 mA feedback signal, is ideal for monitoring the stroke of a hydraulic ELECTRICAL cylinder and other applications requiring po- sition data acquistion in harsh environments. Input Voltage see ordering information Input Current 20 mA max. As a member of our family of NEMA 4-rat- Max. Loop Resistance (Load) (loop supply voltage - 8)/0.020 ed cable-extension transducers, the PT8420 Circuit Protection 38 mA max. provides a feedback signal that is proportional Impedance 100M ohms 100 VDC, min. to the linear movement of a traveling stain- Signal Adjust, Zero from factory set zero to 50% of full stroke less-steel extension cable. Simply mount the body of the transducer to a fixed surface and range attach the extension cable to the moving ob- Signal Adjust, Span to 50% of factory set span ject. Thermal Effects, Zero 0.01% f.s./F, max. Thermal Effects, Span 0.01% f.s./F, max. Output Signal ENVIRONMENTAL Enclosure NEMA 4/4X/6, IP 67/68 Hazardous Area Certification see ordering information (0% fs.) (100% fs.) Operating Temperature -40 to 200F (-40 to 90C) Vibration up to 10 gs to 2000 Hz maximum cable extension Weight, Aluminum Enclosure 3 lbs. max. spring loaded Weight, Stainless Steel Encl. 6 lbs. max. cable reel *Optional 3-wire, 0...20mA output signal available. PAGE 1 SENSOR SOLUTIONS /// PT8420 4...20 mA*PT8420 Industrial 420mA / 020mA Output Signal Outline Drawing: see eyelet detail 0.99 25,1 A eyelet detail .191 4,19 * .375 9,52 ** .165 4,19 ** 1.80 45,7 0.08 2,0 3.50 88,9 2.49 63,3 1.50 37,6 1.30 33,3 0.60 15,2 3.60 91,4 5.56 141,2 max. A RANGE 2, 10 1.16 29,5 5, 25, 50 0.66 16,8 15 0.99 25,7 3.00 76,2 20, 40 0.85 21,6 30, 60 0.52 13,3 DIMENSIONS ARE IN INCHES MM .27 6,8 thru tolerances are 0.02 in. 0,5 mm unless otherwise noted (4 places) 1.64 41,6 note: *tolerance = +.005 .001 +.13 .03 **tolerance = +.005 .005 +.13 .13 Ordering Information: Sample Model Number: Model Number: PT8420 - 0030 - 111 - 1110 R range: 30 inches enclosure/cable tension: aluminum/standard (13 oz.) A 1 1 PT8420- - - B measuring cable: .034 nylon-coated stainless order code: R A B C D E F G E output signal: 4...20mA, 2-wire F electrical connection: 6-pin plastic connector G cable guide option: standard nylon cable guide Full Stroke Range: order code: 0002 0005 0010 0015 0020 0025 0030 0040 0050 0060 R full stroke range, min: 2 in. 5 in. 10 in. 15 in. 20 in. 25 in. 30 in. 40 in. 50 in. 60 in. 1.00% 1.00% 0.18% 0.18% 0.18% 0.18% 0.18% 0.15% 0.15% 0.15% accuracy (% of f.s.): 6 6 5 5 5 5 5 5 5 5 potentiometer cycle life*: 2.5 x 10 2.5 x 10 5 x 10 5 x 10 5 x 10 5 x 10 5 x 10 2.5 x 10 2.5 x 10 2.5 x 10 *1 cycle is dened as the travel of the measuring cable from full retraction to full extension and back to full retraction Enclosure Material and Measuring CableTension: 1 5 2 3 6 4 8 7 9 A order code: enclosure: aluminum 303 stainless 316 stainless cable tension: standard medium high standard medium high standard medium high max. acceleration: 15 g 25 g 40 g 6 g 12 g 18 g 6 g 12 g 18 g Range: 2 in. 5 in. 10 in. 15 in. 20 in. 25 in. 30 in. 40 in. 50 in. 60 in. Standard: 39 oz. 16 oz. 39 oz. 26 oz. 20 oz. 16 oz. 13 oz. 20 oz. 16 oz. 13 oz. cable tension option Medium: 65 oz. 26 oz. 65 oz. 43 oz. 33 oz. 26 oz. 22 oz. 33 oz. 26 oz. 22 oz. specications High: 116 oz. 47 oz. 116 oz. 77 oz. 60 oz. 47 oz. 40 oz. 60 oz. 47 oz. 40 oz. tension tolerance: 50% PAGE 2 SENSOR SOLUTIONS /// PT8420