User manual SMART DEVICES SG1130B

[. . . ] Our limited warranty does not cover damages resulting from accident, misuse or abuse, lack of responsible care, or failures not attributable to manufacturing defects, except as provided herein. makes no warranties, express or implied, including warranties of merchantability or fitness for a particular purpose. RETURN POLICY: Factory authorization MUST be obtained before returning any product. A 15% restocking charge will be issued on unused equipment (in original box) that is returned for credit. [. . . ] The credit may be used against future purchases and no cash transactions are offered. All returns must be shipped freight prepaid by the dealer. Equipment returned without a factory RA (Return Authorization) will be refused. Page 2 INSTALLATION AND OPERATION MANUAL INTRODUCTION The SMART DIM 3K is a three stage light dimmer for cinema lighting control. The DIM 3K is available as a fully enclosed wall mount version, with or without manual override pushbuttons, or as a open frame unit for mounting in a suitable enclosure such as a projector console. This dimmer is ruggedly constructed and is designed with the highest quality parts for reliable operation and long life. The dual SCR output is very conservatively rated, and is capable of far more current then the rated load current of the dimmer. Adequate heat sinking is provided which results in moderate temperature rise even at full rated load. UL CONSIDERATIONS The open frame version is UL approved for mounting in a UL approved enclosure. The wall mount version is also UL approved. The UL approval is applicable ONLY to those units set up for 120 VAC operation and extends ONLY to those units which have been clearly marked with the following listing mark: Electrical Connections The DIM 3K can be run from 120 VAC (UL approved) or from 240VAC (in those countries that use 240VAC for lighting). The DIM 3K is normally shipped set up for the proper voltage for your country. When the jumper is removed, the light level changes instantly as you adjust the trimpots so you do not have to wait and wait for the light level to stabilize each time you turn the trimpot. When you are finished making the adjustments for each of the three light levels, replace the jumper so that light level changes are smooth and gradual for normal operation. Light Level Adjustment Trimpots The line, neutral and load connections are made to the terminal strip mounted on the chassis at the end of the heat sink. Make sure that the wire gauge used is rated for the load current. Make sure that all connections are tight and secure. The terminals should be torqued to 20 in. -lbs. The high load current can cause problems if connections are not properly made. See the diagram to the left for the LINE, NEUTRAL, and LOAD connections. For the most reliable and stable operation, it is highly recommended that each dimmer be fed from its own breaker in the distribution panel, and that SEPARATE neutrals be run from each dimmer all the way back to the distribution panel. This will help to minimize the possibility of EMI from the dimmer affecting other equipment and also EMI from other equipment affecting the dimmer operation. [. . . ] Try to keep all the dimmers on the same phase and OFF the phase that is used for the sound systems for minimum noise. Control Circuit Connections Control wiring is very straightforward and is low voltage (less than 28 VDC) and low current (less than 50 mA). Use any type of low voltage hookup wire, but shielded is recommended for best immunity to possible false triggering from external interference. The HIGH, MID, or LOW terminal must be momentarily connected to the COM teminal to select the desired light level. [. . . ]