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Appendix A
129
Models SE and DL
Humidity
10% to 90% RH (non condensing).
User interface
Display
Size - 128 x 64 pixel display that measures 6 cm x 4.8 cm (2.4" x 1.9").
Lighting ~ Transflective to take advantage of ambient lighting plus fiberoptic
backlighting that can be manually operated or set to turn off after a timed
interval.
Keypad
Construction - Molded layer that holds fourteen press-sensitive buttons.
Buttons - Five buttons have dedicated control functions, another five are pri-
marily used for selection and navigation, and another four provide variable
functions when they are defined in the display (softkeys).
Languages
English, Spanish, German, French, Italian and Portuguese.
Input/output
Memory card ~ Removable Secure Digital (SD) data storage device that is
inserted in a slot at the base of the instrument. Stores measurements made
in studies and sessions in session files. If the instrument has a logging option
installed and is logging measurements, the logged values are stored in the
applicable session file as well. The card also stores configuration files.
Microphones
The following specifications apply to microphones connected to the instru-
ment.
QE7052 - Free-field, Class/Type 2, (standard), low cost ½-inch diameter
(.52"), electret (200 volts must be set to “Off”)
BK4936 - Free-field, Class/Type 1, (standard) ½-inch diameter (.52"), elec-
tret (200 volts must be set to “Off”)
QE4110 - Free-field, Class/Type 1 (optional) ¼-inch diameter (.276"), con-
denser (200 Volts must be set to “On”). Use for very high dB level free-field
measurements. Requires a special preamp to handle high levels. Please
contact 3M.
QE4130 - Free field, Class/Type 1 (optional), ½-inch diameter (.52"), con-