No-contact measurement of the emergency stop time for all press machines
SDM3-LR is an inspection instrument that measures stopping time,
which is essential for diagnosing press machines. In order for the safety device to fully demonstrate its protective function against danger, it must certainly stop the movement of the moving part of the machine before it reaches the dangerous area. Therefore, it is very important to correctly understand the stopping performance of the machine. In Japan, based on the Industrial Safety and Health Law, power press machines are required to undergo periodic self-inspections, and as a mandatory inspection item, the measurement and calibration of stopping time is included.
Features
- Non-contact measurement of the stopping time of powered press machines.
- Adopting no-contact measurement systems can be universally applied for any kinds of press machines.
- Automatically recognizes the measurement position (for stroke length of 340mm or less)
*In case the stroke length exceeds 340mm, the measurement position can be set manually. - Even a machine with small inertial descending value is also measurable.
- Able to measure Slide(Ram) descent speed.
- Two types of sensors are available according to the measurement method.
Linear Type
The SDM3-LE type linear sensor is fixed on the bolster, and the magnetic sensor is directly fastened to the slide of the press machine to convert rotational motion to linear motion inside the device.
The stop time and over drop distance of the hydraulic press and mechanical press are digitally displayed.
When the slide descends to an arbitrary position, the press machine stops at a fixed position, so the stopping performance can always be measured under uniform conditions.
Choose from three types of sensors (Measuring length: 100/200/340mm) depending on the type of press machine.
Encoder Type
An encoder sensor is installed to the rotating part of the crankshaft, rotating angle indicator etc., to perform measurements.
The stop time and stop angle of the press machine are digitally displayed. By making the crank stop at the fixed point at 90 degrees, the stopping performance can be measured at all times under uniform conditions.
Specifications
| Measuring range | Over drop distance: 0～999 mm Resolution: 1 mm | |
|---|---|---|
| Stopping time: 0～999 ms Resolution: 0.1 ms | ||
| Sensor system | Non-contact magnet type (linear) | |
| Encoder type (rotary) | ||
| Display method | Digital four-digit | |
| Power supply voltage | AC100V～AC220V ±10％ | |
| Linear sensor | Effective measuring range: 100 mm, 200 mm, 340 mm | |
| Resolution: 0.33 mm 10 bit | ||
| Linearity: ±0.03 FS ±0.102 mm | ||
| Encoder | Starting torque: 0.98 mN・m or less | |
| Resolution: 720 P/R | ||
| Allowable maximum speed: 1000 rpm | ||
| Ambient temperature | During operation: -10～55℃（no-freezing） | |
| During storage: – 30～70℃ | ||
| Ambient humidity | During operation: 35～85% RH（no-condensation） | |
| During storage: 35～95% RH | ||
| Sensor | Linear Type | SDM3-LE-100 (Measuring range: 100mm) |
| SDM3-LE-200 (Measuring range: 200mm) | ||
| SDM3-LE-340 (Measuring range: 340mm) | ||
| Encoder Type | SDM3-P （Pully type） | |
| SDM3-O （Press type) | ||
| SDM3-C （Direct-coupled) | ||