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The Timer and Counter Company

Pneumatic Timers > Hengstler Pneumatic Digital Timer

Hengstler 497 Series Digital Timers

This range of pneumatic digital timers is based on the classic pneumatic counter design. Time is measured by the application of compressed air to create an internal pneumatic pulse every second or every minute. Time elapsed is displayed as a count in either a 3 digit or a 5 digit display. Either minutes or seconds are displayed according to the model selected.

The 497 series digital timer then acts like a pre-set (or pre-determined) counter.

There are 2 displays. One is the pre-set, which is input using the push buttons on the front. The second display shows time elapsed, all seconds or all minutes according to model. When time elapsed matches the pre-set value, the normally closed internal valve switches to open, and a continuous pneumatic output is achieved. Re-set is either manual by push button, or by a pneumatic pulse to port Y. 2 models are available with automatic re-set.

PDF Datasheets
Hengstler 497 Series	87kb

Features

• Panel mounted
• Covers available
• 3 & 5 digit models
• Minutes & seconds models
• Auto-reset versions
• M5 & 4mm push-on models
• Normally closed 3/2
• 2 - 8 bar

Data Specifications
Operating Pressure & Temp	2 - 8 bar 0 - + 60°C
Air Quality	Oil Free & Dry 5 micron filtered
Connections	Standard 4 x M5 thread or 4mm push on tubing
Time Display	3 - digit 4mm 5 - digit 4mm
Maximum Time	99999 minutes depending on model
Reset	>Manual or pneumatic pulse > 180ms
Auto-reset	2 models available, resets after pre-set matched
Class & Weight	IP40, 150g
Dimensions	60 x 75 x 122 mm
Panel Cut-out	52 x 52 mm

Part Numbers
0.497.621 Pneumatic	Seconds timer 2x3 digit display M5 ports
0.497.620 Pneumatic	Seconds timer 2x3 digit display 4mm connectors
0.497.622 Pneumatic	Minutes timer 2x3 digit display M5 ports
0.497.652 Pneumatic	Seconds timer 2x5 digit display M5 ports
0.497.654 Pneumatic	Minutes timer 2x5 digit display M5 ports
0.497.665 Auto-reset	Seconds timer 2x5 digit display M5 ports
0.497.666 Auto-reset	Seconds timer 2x5 digit display M5 ports
1.405.614	Protective cover with lock
1.405.613	Protective cover with knob

For a full list of options and explaination please contact The Timer & Counter Company.