Hengstler 250 Series Mechanical Revolution & Length Counter 5 Digit Display, Predetermining.
- 5 Digit Display
- Bi-directional Counting
- Protection Class IP40
- Optional Sense of Rotation
- 6.5 mm Digit Height
- Base mounting
- Double Shaft
- Reset & Preset Push Buttons
- 7mm Shaft Diameter
- Transmission Ratio 1:1, 2:1 or 1:5
The Hengstler 250 series revolution or length counter has a large 5 digit display, the digit height is 6.5mm. The counter subtracts from a preset value to zero and releases a SPDT contact (Max. load 1A at 250V) upon passing from 00000 to 99999, this signal is retained until reset. The reset button is used to reset the counter or used in conjunction with the preset push buttons to set the predetermined count value.
To set the predetermined value, unlock the reset button by pressing a red spring loaded safety disc, then hold the reset button down. Whilst the reset button is held down, press the preset buttons accordingly until you reach the desired preset number. Now return the reset button to its initial position. Press the reset again to ensure the preset is displayed correctly in the window, all the digits must be fully visible.
Choose between a revolution (99999) or length counter (9999.9 m/dm or 99999 m) with a top coming shaft type BZ (viewing the front display the top of the shaft is coming towards the observer) or a top going shaft type BW (viewing the front display the top of the shaft is going away from the observer).
Revolution and length counters are supplied with a double shaft (7mm diameter). Transmission ratios are 1:1, 2:1 or 1:5 depending upon the version selected. The maximum speed for transmission ratio 1:1 is 10,000 rpm, for 2:1 is 6,000rpm and for 1:5 is 600rpm.
Measuring wheels are not provided with length measuring counters and should be ordered separately; see the related product section for further information.
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