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Product Version 1.0 | Revision E | Released 2023-01-11
Ambient temperature range for storage, start-up, and operation of G-7 Spot and G-7 Spot POI moving heads is
described at www.sgmlight.com.
All lighting fixtures have mechanical tolerances which can introduce unexpected results when in extreme tempera-
tures. To minimize these undesirable effects in extreme cold from firmware 1.31 on, the G-7 Spot (both in POI and
non-POI versions) includes a “Heat Up mode” feature accessible via the “Function” DMX channel (DMX chart avail-
able at www.sgmlight.com). This functionality pre-conditions the mechanical systems of the unit during low ambi-
ent temperature periods, without creating a visual impact in the illuminated area. When the user activates the “Heat
Up mode” the fixture warms up by operating the light source at 30% output as well as adjusting other settings. The
CMY flags, CTO and iris functions are also used to block as much light as possible. Pan / tilt movement or gobo
wheels are not affected and will still respond to DMX parameters.
In temperatures below -20º C (-4º F) degrees, main features such as pan and tilt function correctly, while the preci-
sion mechanical features such as gobo indexing may not perform at their maximum accuracy even when using the
“Heat Up mode”. To use the precision mechanical features at their best, when in ambient temperatures below -20º C
(-4º F), a full-output warm-up procedure is advised. See below for more details.
POI Recommended Operation
The “Heat Up mode” is recommended for permanent activation when in ambient temperatures below 0º C (32º F)
degrees. Heat Up mode is automatic when enabled. Once internal operating temperature is reached, normal
operation resumes. Heat Up mode is functional to around -20°C in typical use.
When in permanent outdoor installations, the start-up temperature equals stand-by mode, since SGM’s DryTech™
system requires constant power. Features based on precision mechanical systems such as gobo selection, gobo
indexing / rotating, CMY flags, prism rotation, and iris may work slightly different at lower temperatures than usual.
Very low ambient temperatures or freezing winds can eventually cause the features to not respond to the same
level of accuracy as under normal circumstances. This behavior will not cause damage to the fixture or affect the
long-term performance of the product at higher temperatures.
Proper function of the features based on precision mechanical systems below -20°C is possible, but this requires
additional programming. When specified for installations reaching ambient temperatures below -20°C, SGM
recommends all programming operators to prepare the scenes following the Non-POI warming up method ex-
plained below.
MECHANICAL TOLERANCES AND RECOMMENDED USE IN LOW AMBIENT
TEMPERATURES
