The RT7700 is an electronic tape dispenserdesigned for the fast and precise cutting of adhesive tapes. It is a compact and programmable device which has many features, thus reflecting the versatility of this product that will ensure greater comfort for users all while reducing the time needed for various tasks.
Compatible adhesive materials: 3M tapes, Filament, Strong, Acetate fabric, Glass fabric, double sided, Normex, pre-stick, cellophane, craft, masking tape, plastic, plus B, etc…
Compatible non-adhesive materials: Protective film, Paper Tape, insulating film, aluminum foil, copper foil, etc…
Starting up the device and loading the roll
Connect the automatic dispenser to a 250 V / 50 Hz socket using the power cable supplied with the device. Turn the device on by pressing the ON /OFF button on the back of the unit.
Then lift up the flap and load the roll of tape into dispenser, making sure to position it so that the tape is facing down as it comes out. Note that it is possible to adjust the length of the mandrel according to the width of the roll by means of an adjustable holding bracket on the back of the unit, as shown in the diagram below.
Then slide the tape between the rollers and close the cover. Then simply press the blue FWD button to unroll the first piece of adhesive tape. Finally press the START button to cut the strip. The RT7700 is now ready for use.
As mentioned previously, this electronic dispenser is capable of storing up to 6 different lengths (between 5 and 999 mm), programmable in order from A to F. Adjustable holding support depending on the diameter of the roll of tape Rolls holding the strip to be cut Button to raise the holdings rolls Adjustable guide maintaining the adhesive tape in place
To input measurements for these settings, press the SELECT button and choose one of the 6 programs. Then input the desired length using the + and – keys on the unit. Press and hold for faster scrolling of the dispensing length (by increments of 5mm). Finally, press the SELECT button again to move to the next letter setting. There are two distinct operating modes for this programming system: semi-automatic mode and automatic mode. The AUTO /MANU button on the RT7700 automatic dispenser activates the automatic and semi-automatic modes. A blue LED light on top of the button indicates that the automatic mode has been activated.
For this mode, make sure the blue LED light is off. If this is not the case, press the AUTO / MANU button. Select the desired program and press START to cut. After dispensing the piece of tape, the START button will need to be pressed again in order for the next strip to be cut.
Press the AUTO / MANU button if the blue LED light does not appear on the digital panel. Once it is switched on, the device is set in automatic mode. Select one of the 6 predefined programs, then proceed to unwind. The unwinding of the adhesive tape will be done automatically thanks to the photoelectric detection cell. Thus, a new piece of tape will automatically appear after each strip is taken. In order to switch automatically between the different set lengths, simply hold the AUTO / MANU button once the automatic mode is activated. The electronic feeder will automatically switch to the next program after the previous program has been unwound. (See video demo at the top of the page)
Predefining a number of cuts
The RT7700 has 2 modes for determining the number of cuts.
Predefined mode (P-Mode)
This mode allows the user to pre-set the number of strips to be cut, ranging from 5 to 999 pieces. It is a feature that can be used in both automatic and semi-automatic modes. Simply select one of the A, B, C, D, E or F settings using the SELECT button. Press and hold the button again until LCON appears on the display of the automatic dispenser. Release the button and press the SELECT button again until the letter P appears on the instrument panel. Then determine the desired number of cuts for the previously selected program using the + and – keys on the device. In automatic mode, the RT7700 will switch to the next setting once the cutting number counter displays 0.
Loop mode (L-MODE)
This mode is only intended for cutting non-adhesive tapes. This mode continuously unwinds and cuts strips of tape. It does not require manual intervention to remove the strips cut. The automatic tape dispenser automatically stops when the desired number of pieces have been cut. The number of tape pieces desired can be defined in advance with the maximum number being 999 pieces. To enable this mode, simply select a letter corresponding to a previously inputted set length by pressing the SELECT button. Press and hold the select button again until the display reads LCON. Adjust the number of strips needed with the + and – keys. To stop the cutting of strips, simply press the START button again.
Using two rolls simultaneously
This device allows for the use of two rolls, each not exceeding 24 mm wide to be used at the same time. The separator intended for this purpose is located under the dispenser. Simply position it in the intended location to allow for the use of two rolls.
Cleaning & Maintenance
The RT7700 must be serviced by a professional. DERFI ensures the maintenance and repair of electronic dispensers throughout their lifespans. Simple daily care can contribute to extending the lifespan of a device: blades should be cleaned using plastic-friendly solvents such as white spirits, lubricating the blades with the silicone oil provided will facilitate the device’s cutting action.
DERFI offers constant follow-up for automatic dispensers and provides the different spare parts that compose them. Warning! Make sure the device is switched off before attempting to replace any spare parts.