Specifications for the
QUEST 1800 Sound Level Meter
Product #3015

Model 1800 Precision Integrating Sound Level Meter

Standards

• Meets or exceeds ANSI Sl.4-1983 Type I and relevant sections of IEC651-1979, Type I (1) and IEC804-1984

Accuracy

• Within 0.5 db at 25°C, within 1 db over entire temperature range

Microphone

• Removable precision 0.5” prepolarizer conderie (electret)

Dimensions

• 8.4 cm x 20.9 cm x 4.6 cm
• 3.3” x 8.2” x 1.8” (less pre-amp)

Weight

• 680 g (24 oz)

Display

• 3-1/2 digit (LCD) & bar-graph

Battery

• 2 x 9V DC Alkaline

Battery life

• 16 hrs continuous (8 hrs with filter set)

Temperature

• -10°C to 50°C

Humidity

• 0 to 95%

Output

• AC - 3.16V RMS DC - 0 to 1.00V DC, 60 db span
• Print - serial to printers and computers
• Data - real time @ 16 times /sec using RS-232

Model OB-300 Octave Band Filter Set

Standards

• Meets or exceeds ANSI St .11 -1986. Order 3, Type 2, Sub-type C and IEC R225-1966.

Frequencies

• (1/3 mode) 33 frequencies 12.5 Hz to 20 kHz
• (1 / 1 mode) 11 frequencies 16 Hz to 16 kHz

Selection

• Full manual control or automatic sequential

Size

• 8.4 cm x 10.7 cm x 4.6 cm (3.3” x 4.2” x 1.8”)

Weight

• 225 g (9 oz)

Power

• From sound level meter