Air Gap Sensor[DPA-3SR1 Series]

Air Gap Sensor [1 point setting type × 3] DPA- 3SR1 Series

One unit provides the same functionality as three "DPA-SR1" units.

This compact air gap sensor integrates the functions of three DPA-SR1 units into a single unit, enabling cost reduction through space saving, pipe saving, and wiring saving in machine tools. DPA-SR1の図

Main Challenges

  • Need several seating sensors on my machine tool, but I don't have the space.
  • Need to branch out to check the seating of large workpieces, but do not want to increase the number of sensors.
  • Need to check the parallelism of a workpiece by detecting it at three points.

Features

Repetition accuracy of ±0.5μm prevents any false readings

Gaps of “20 μm or less”, which cannot be detected by conventional gap sensors, are accurately detected with a repeatability of ±0.5 μm.
Effective detection of workpiece floating due to cutting chips.

Cost reduction is realized by saving space, piping, and wiring.

Three precise seating checks are available with only one unit, while maintaining ±0.5µm repeatability.

  • A single air gap sensor completes a machine tool that requires several seating sensors.
  • The parallelism of the workpiece can be checked by detecting the workpiece at three thresholds.

Reduces machining cycle time

IP67 rating for protection against water, coolant, and dust, and the sensor can be installed inside the machine for shorter air piping.
Shorter pipe length improves signal response and contributes to shorter cycle time in mass production lines.
Coolant flooding tests and severe durability tests are conducted on machine tools assuming that they will be used in adverse environments.

Simple operation

“Threshold Setting” is completed with a single push.
Simply place the master workpiece or shim between the seating surface and the workpiece and press the master set button to complete setting.
Anyone can easily set the threshold value, thus eliminating variation in setting values among different operators.

Supply air self-diagnostic function

The self-diagnostic function outputs an alarm when an error occurs in the air supply pressure.
It notifies you of insufficient pressure, pressure fluctuation while the sensor is in use, and excessive pressure.

Air Gap Sensor Identification Method

Air Gap Sensor Identification Method

Specification

Product name DPA-3SR1
Poupose of use Seating confirmation of workpieces or workpieces with rough surface
Signal points can be set 1 point ×3
How to set the signal point Master set button
Can be set with master set input 1 and master set input 2
*The signal point values are saved even when the power is turned off.
Detection range
1 - 100μm(When uging a recommended nozzle)
Repeatability ±0.5μm (Detection range:1 - 60μm)
±1μm (Detection range:60 - 100μm)
*Air pressure change: within ±1%
Protective structure IP67
Output mode NO(Normally Open)
Fluid Dry air(filtered to 5μm)
Setting pressure 150 - 200kPa
Consumption flow rate 27ℓ/min(max)
Connection port diameter Rc1/8
Recommended tube: SUP port φ6×φ4 tube
Recommended tube: OUT port φ4×φ2.5 tube
φ6×φ4 tube
*A diameter of the connection tube for leakage unit (accessory) is φ6. Please prepare a conversion adapter if you use a connection tube of φ4.
Response speed See Manual
Input Specification Photocoupler input
DC24V±10%
Output specification Photocoupler output(Non-voltage floatingoutput)
(collector emitter floating)
Rated voltage:DC24V ±10%
Rated current:20mA
Low level output voltage: less than 1.5V(at 15mA)
Cable Standard length 3m Oil resistance φ5.5 / 16 cores AWG28
Electrical response speed 10ms、20ms、80ms
Configurable in smoothing setting mode
LED lump See manual
Accessory Leakage unit (x3) plug (x1)
Operating temperature range 0℃ - 60℃(no condensation)

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