Safety Features  (meets Class-I Div-II)

The large, red, emergency 'STOP' button at the top of the HHU shuts off  battery power to the unit and stops all crane motions immediately.

The 'Tilt' detector and the 'Safety' button are automatically tested each time the operator powers up the Hand-Held Unit (HHU). Both must be operating correctly or the unit will be disabled and a warning displayed.

The 'Safety'  button on the right side of unit (shown opposite) must  be held-in or all crane motions will immediately stop. This button is specially designed to require only a gentle pressure (easy to hold).

The HHU is very light, extremely rugged, fits comfortably into either hand and can be easily slipped into a shirt pocket when it is not needed. This leaves both of the operator's hands free to control the load on the hook.

An internal detector knows if the HHU is dropped or tilted too far and  will carefully stop all motions. The time it takes to stop each motion will depend on the size of the load and how fast it is travelling. These timers can easily be changed by the user in just a few seconds to suit the application. No tools or technical knowledge is required, just the Hand-Held Unit (HHU).
There are 3 red STOP'  buttons (shown opposite) which are used to individually stop the Bridge, Trolley and Hoist motions. One touch by an operator and the motion will stop immediately.

The 32 character display will help the user in many  ways including showing which Trolley(s) and Hoist(s) are currently selected and their exact speeds.   There are many options that can be selected by the user eg. whether the Little Genius Receiver is going to control AC contactors or DC Variable Speed Drives.  Warning messages such as 'Low battery' are always more popular in plain English  instead of  "idiot lights".
 

Main Features

Weatherproof
Extremely rugged
Made for heavy gloves
No radio license is required
Large emergency 'Stop' button
Simple, quick and inexpensive to service
Multi-speed ac contactors or Variable Speed Drives
Meets or exceeds: Class-I  Division-II  Intrinsically Safe
Operates for 8 hours a day for a month without recharging

Hand-Held Unit (HHU) Specifications

Dimensions: 122mm x 83 x 20mm (4.8” x 3.26” x 0.78”)
Weight including battery: 0.2Kg  (0.45lb)
Material: High impact  Polycarbonate
Buttons: 15mm x 15mm (0.6”) with stainless steel dome
Display: Liquid Crystal   2 lines x 16 characters
Battery: Lithium Ion rechargeable
Operating Period: 180 hours of  continuous operation
Temperature Range: -20°C to +60°C ( -4°F to +140°F)
Frequency Range: 8 Channels  904-926 MHz band
 

Information Display (INFO)

If the user touches the 'INFO' button, the top line of the display will show the Serial # of the HHU and the bottom line will show the battery voltage. After  2 seconds the display will change to show the customer's name on the top line and the crane manufacturer on the bottom line. This will be followed by the Radio Control frequency and Identification Code. Next will be the HHU's product name which is 'Little Genius Crane Control'  followed by the software version used eg. 'GA704-0A' and the date it was made. This data will continue to be displayed until the user touches the 'INFO button again to cancel.
 

SMALL SIZE HHU

You can see from the photograph that the Little Genius HHU can fit into a very small shirt pocket, making it very convenient to carry around when it isn't being used.

GENERAL OPERATION:

1. Pull up the emergency 'STOP' button to apply the Battery Power;
2. Tilt the Unit to test the internal Tilt Detector;
3. Press and hold the safety button;
4. Select Hoist(s) and Trolley(s);
5. Activate the motion buttons.

SPECIAL FEATURES:

MOST EFFICIENT USE OF KEYBOARD BUTTONS

The 'MAX SPEED' button allows an operator to inform the Hand-Held Unit (HHU) that he wants the next motion he selects to smoothly increase from zero towards the maximum speed. So if he momentarily presses (touches) the 'E'  button (Bridge East) the Bridge will smoothly increase from zero up to the maximum  (5th speed) in about 5 seconds.

At any time the operator could touch the 'opposite' button 'W'  (Bridge West) to stop the speed from increasing any more and hold the Bridge at any desired speed between 1st  and 5th.

The same principle applies to an HHU which is controlling a Variable Speed Drive  Bridge instead of one with AC Contactors. In this case the speed would increase from 0% (East) up to 100% (East) until the user touches the 'W' button. To give fine control, it will also take about 5 seconds to increase from 0 to 100%.

The next feature is very useful because the user doesn't even need to touch a single button to smoothly slow down or stop all motions. If the operator is holding the HHU and he tilts the unit too far or lowers his arm,  the 'Tilt' detector inside the HHU will automatically slow down and stop any motions that are moving. The time it takes for the motions to slow down and stop are fully adjustable.

If the operator raises his hand back to the proper operating position at at any time, the motion(s) will not keep slowing down and will remain at their existing speed.

VARIABLE SPEED DRIVES

In spite of it's small size, the 'Little Genius' HHU is very powerful, providing full Variable Speed Drive control from 0% to 100% in 1% increments. The DC drive voltages can be either:  0 to +5v,  0 to +10v  or  -5v to +5v.

AC CONTACTORS

This HHU can also operate  cranes with AC contactors  instead of Variable Speed Drives. Cranes with a Bridge, up to 3 Trolleys and 3 Hoists with each motion having from 1 to 5 speeds are not a problem for the 'Little Genius'.
 

HELP MESSAGES

The display on the hand-held unit shows the user which functions have been selected. It also warns him when the battery is low
 

CHARGER

Because the Little Genius uses a Lithium-Ion battery, there aren't any bad "memory effects", and you can recharge the unit any time it is convenient. Chargers are available for many different countries. To recharge the HHU first plug the Charging Unit into a suitable AC wall socket and note that the red "POWER ON" indicator is illuminated. Plug the Charger cable connector into the bottom of the HHU as shown in the picture. Lift up the red STOP button at the top of the HHU and note that the display shows the appropriate "CHARGING..." message as shown in the picture.