DS01 Miniature Variable Area Flowmeter and Switch

DESCRIPTION
The flow meter and switch model DS01 works according to a modified variable area principle. The float is guided in a cylindrical measuring glass by means of a spring. The flowing medium moves the float in the flow direction. The upper edge of the float shows the momentary flow via a burnt-in scale on the measuring glass.

A Reed contact is mounted outside the meter in a sealed housing. When the float reaches the position of the Reed contact the switch will close. With higher flows the float moves further upward until it reaches a built-in float stop, still keeping the switch closed. This ensures a bistable switch function at any time. The Reed contact is adjustable over the full switching range of the meter.


TECHNICAL SPECIFICATIONS
Max Pressure:
  DS01.1: 230 psi / 16 bar
  DS01.2 / DS01.3 / DS01.4: 145 psi / 10 bar
Pressure Drop:
  DS01.1: 0.29-2.9 psi / 0.02-0.2 bar
  DS01.2: 0.29-4.35 psi / 0.02-0.3 bar
  DS01.3 / DS01.4: 0.29-5.8 psi / 0.02-0.4 bar
Max Temperature: 212°F/100°C (optionally   320°F/160°C) for liquids, 194°F/90°C for gases
Materials:
  Measuring Glass: Duran 50
  Housing - anodized aluminum
  Connections - Brass or Stainless
  O-rings - Buna, (optionally: Viton, EPDM)
Electrical Connection: - plug acc. to DIN 43650
  (optionally: 1 m cable connection for DS01.1,
  N/O only)
Accuracy - ±10% f.s.
Analog Output:  see model DSxx-A in section
   “accessory”