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Type 90 Prox Pneumatic Proximity Switch

Type 490 Prox Pneumatic Proximity Switch
Type 495 Pneumatic Totalizing Counter

Type 495 Pneumatic Totalizing Counter
Type 497 Adding Pneumatic Preset Counter

Type 497 Adding Pneumatic Preset Counter
Type 499 Pneumatic Timer Counter

Type 499 Pneumatic Timer Counter
Description N/A The proximity switch 490 with ATEX does not require contact and is triggered by a magnetic field or an Fe object. The device does not require a continuous air supply. A further advantage of the proximity switch is its compact dimensions. The ATEX version of pneumatic proximity switch 490 is certified for use in potentially explosive atmospheres where there is a risk of gas or dust explosion, zones 1 and 21 as well as for Mining (category M2). N/A Type 495 integrated, impressively easy installation using hose coupler or rapid-fit connector, maintenance-free operation. This integrated totalizing counter is available in two designs, with either 6 or 8-digit display. Type 495 integrated is available without a reset function or with manual or pneumatic reset. The user-friendly Type 495 for surface-mounting is easily fitted using hose couplers or a rapid-fit connector and is maintenance-free in use. The totalizing counters for surface-mounting has a 6-digit display and is equipped with a convenient pneumatic or manual reset function. N/A Using two pneumatic preset counters it is possible to implement pilot signals with values ranging from 1 to 99.999. These counters are especially suitable as controlling elements for semi-automatic or fully automated processes. This applies both to varying preset/setting values and to values which remain the same for a long period. N/A The convenient Type 499 timer with ATEX features compact fitting dimensions and can, as a result of its standard DIN dimensions, also be fitted to a DIN rail system. The unit features a stationary preset value and settable time range from 0.2 to 300 seconds. Type 499 timers do not require a continuous air supply. The ATEX version of pneumatic timer 499 is certified for use in potentially explosive atmospheres where there is a risk of gas or dust explosion, zones 1 and 21 as well as for Mining (category M2).
Brands N/A Hengstler
Model N/A 490 Prox N/A 495 N/A 497 N/A 499
Type N/A Counter N/A Counter N/A Pneumatic Preset Counter N/A Pneumatic Timer
Display N/A N/A 6 or 8-digit, depending on version N/A 3 or 5-digit indication of count and preset value, depending on version N/A Digit Roll
Digit Height N/A N/A 4 mm N/A 4 mm N/A
Service Pressure N/A N/A 2 to 8 bar N/A 2 to 8 bar N/A
Air Quality N/A N/A Oil Free N/A Oil Free N/A Oil Free
Filter Pore Width N/A N/A < 40 µs N/A < 40 µs N/A < 40 µs
Mounting N/A N/A N/A Front Panel N/A Clamping spring or DIN rail attachment
Mounting Position N/A N/A Any N/A Horizontal Roller Axis N/A
Protection Class (IEC 144) N/A N/A N/A Ingress Protection (IP) 40 with hoses connected; for higher degree or protection we recommend clear covers N/A
Operating Pressure N/A 2 to 6 bar N/A N/A N/A 2 to 6 bar
Quality of Air N/A Free of oil N/A N/A N/A
Width of Filter Pores N/A < 40 µm N/A N/A N/A
Operating Temperature N/A -15 to 60 ºC N/A -15 to 60 ºC N/A 0 to 60 ºC N/A
Storage Temperature N/A N/A -40 to 60 ºC N/A N/A 0 to 60 ºC
Connection N/A Nipple plug for pipe of nominal size 3 N/A Hose coupler M5 or rapid-fit connection (depending on version) N/A Hose coupler M5 or rapid-fit connection (depending on version) N/A Hose coupler M5 or rapid-fit connection (depending on version)
Flow Rate N/A 40 L/min N/A N/A N/A
Nominal Size N/A 2 mm N/A N/A N/A
Repeatability of Operating Point (±) N/A 0.2 mm N/A N/A N/A
Approximate Weight N/A N/A 60 g N/A N/A
Time Range N/A N/A N/A N/A 0.2 to 3 sec2 to 30 sec20 to 300 sec
Note for Time Range N/A N/A N/A N/A Depending on version
Input N/A N/A N/A N/A Timer is started when input 1 is pressurized
Time Setting N/A N/A N/A N/A Continuous with rotary knob
Minimum Reset Time N/A N/A N/A N/A 200 ms
Note N/A N/A N/A Attention! Minimum time period between last count pulse and pneumatic reset is 50 ms. N/A
Features N/A N/A N/A
  • Continuously visible preset
  • Integrated pneumatic reset
  • Convenient button setting
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  • Low-cost
  • DIN dimensions
  • Requires little space for installation
  • Pressure-independent
  • No continuous air supply required
  • Stationary preset value