Requirements
- Easily found when misplaced
- Big enough to hold easily but not too big that it's cumbersome
- Should have a battery compartment so that unskilled personnel can replace batteries without having to open up the housing
- Room enough for the necessary buttons
- Nice looking housing, attractive appearance
Selection
Hammon Manufacturing offers a wide range of suitable housings in their 1553 series. Chinese copies are available from SZOMK: AK-H-30 series.
Selecting color
- Gray/black : dull, hard to find when misplaced
- Red : red color relates to danger or things that are hot. Preserve this color for objects that are dangerous/hot.
- Translucent blue : useful for white or blue LEDs on the PCB. No need to drill extra holes in the housing.
- Yellow : perfect color
Selecting size
There are two options for a yellow case with a battery compartment:
- 1553BYLBKBAT: 117 x 79 x 24 mm : €7.72
- 1553DYLBKBAT: 147 x 89 x 25 mm : €8.24 : will leave more room for buttons
Accessoires
ABS blocks NIR. Hammond Mfg. provides a PC (polycarbonate) window : 1553DIR-BULK. This part can't be bought from the usual online resellers. It might be better to find a piece of PC with the correct thickness and laser it. Another option is to keep the current ABS panel and drill a hole for the LED in it.
Battery compartment
Room for two AA-cells, or one PP3 9V battery. Two AA-cells will be used here because they offer the highest energy per dollar.
Conclusion
1553DYLBKBAT : IP54 Handheld Enclosure, ABS, Yellow, 147 x 89 x 24mm
Discussions
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