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Series 1999SEMC Semelex® Safetimeter
6380 Brockway Rd, Peck, Michigan 48466 • Phone: 248-435-0700
3.4: Using Auto-Hand
The Auto-Hand is designed to release or push press controls.
It can release a two-hand control, inch button or push an
E-Stop button.
Using Auto-Hand with Two Hand or Inch Control (Release
to Stop)
The Auto-Hand releases or pushes buttons with a spring-
loaded plunger. When the plunger is pushed, it will latch into position. The Safetimeter provides a voltage pulse to
energize a solenoid that releases the spring-loaded plunger. If the two-hand control has a ring guard, the Auto-Hand
should rest on the guard and the three support legs are not needed. There is a plunger extension in the accessory bag
that can be screwed into the Auto-Hands plunger if the plunger is too short to reach the button in question.
1. Connect Auto-Hand to the Safetimeter. Depress the plunger and place the extended end over one of the two-hand
buttons. Rest Auto-Hand on the button’s ring guard. If no ring guard exists, screw in the three legs to serve as a rest.
Use your other hand to press the other button.
2. Cycle the press. The Auto-Hand will actuate when the desired CSP is reached, releasing the button and initiate a press
stop.
NOTE: The Auto-Hand can only release 10 lbs. of force and may not release if pushed against the button with excessive
force. In this case, use one leg as a spacer, to prevent applying excessive force. Place over switch and repeat step 2.
NOTE: Be sure the press has stopped before the bottom of the stroke. Readings are invalid if the press goes through the
bottom of the stroke before stopping. If this happens, increase the CSP setting slightly until the press stops before the
bottom.
3. Read the Safetimeter display. This value is the Stop Time or Safety Distance, depending on the display mode selected
prior to the test.
4. Remove Auto-Hand and restart the press to return the ram to top stop.
Using Auto-Hand with and E-STOP Button (Push to Stop)
1. Screw the plunger extension into the plunger end that retracts when the plunger is depressed. This end is used to push
an E-STOP button. Attach the three legs to this side, if required.
2. With the Auto-Hand plunger depressed, place the unit over the E-STOP button to be pushed. Check that the plunger
extension is adjusted out far enough to push the button when the Auto- Hand releases.
3. Position the Auto-Hand over the E-STOP button. The plunger extension should not touch the E-STOP button.
4. Cycle the press while holding Auto-Hand over the button. Auto-Hand will operate when the desired CSP is reached
and push the E-STOP button, stopping the press.
