Quest Engineering 1800 User Manual

9
Figure 4. Battery Compartment Internal Switches.
Display
Time -
The
reces
sed
dip
switc
h
contr
ols
the
rate
at
which
the
displ
ay
updat
es.
The
options are 1.0 second or 0.25 second.
G. Printout
The Sound Level Meter produces a hard-copy of the information accumulated
during the total RUN MODE period. When used with the filter set OFF, this
information includes :
1. Meter WEIGHTING and RESPONSE settings.
2. LEQ, MAX, MIN, and SEL Levels.
3. RUN TIME and OL TIME.
4. Table of EXCEEDANCE LEVELS (dB)*
*EXCEEDANCE LEVELS: Tabulated from 1 to 99, the SPL level that was exceeded
for x percentage of time. (See Figure 5, Sample Printout.)
If an OB-100 or OB-300 is used as part of the sound measuring system, all of
the information above the OCTAVE FILTER SET header will pertain only to the
last Octave Band measurement. This allows the user to perform, for example,
a 500 Hz Octave Band Measurement on "A" Weighting, "SLOW" Response, and
obtain a printout that includes proper switch settings and exceedance levels
for that frequency.
NOTE: For forty column printers, the Sound Level Meter allows for
a compressed print mode. Pressing the HOLD button before printing
causes the meter to send a printer control code [ LPRINT CHR$ (15) ]
that produces a compressed print form for many printers. Consult your
printer manual for details.
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QUEST MODEL 1800 PRECISION INTEGRATING SOUND LEVEL METER
DATE:_______ SERIAL NO. _______ CALIBRATED: __________
LINEAR WEIGHTING / SLOW RESPONSE
LEQ(dB) MAX(dB) MIN(dB) SEL(dB) RUN-TIME OL-TIME
101.9 107.2 86.9 117.5 :00:37
EXCEEDANCE LEVELS(dB)
0 1 2 3 4 5 6 7 8 9
L00 107 107 107 107 107 107 107 107 107 107
L10 107 107 107 107 107 107 107 107 107 107
L20 107 107 107 107 107 107 107 107 107 106
L30 106 106 106 104 103 101 100 98 97 95
L40 94 93 92 91 91 90 89 89 89 88
L50 88 88 88 88 88 88 88 88 88 88
L60 88 88 88 88 88 88 88 88 88 88
L70 88 88 88 88 88 88 88 88 88 88
L80 88 87 87 87 87 87 87 87 87 87
L90 87 87 87 87 87 87 87 87 87 87
MODEL OB-300 1/1-1/3 OCTAVE FILTER SET - SERIAL NO. ______
FREQ(Hz) LEQ(dB) MAX(dB) MIN(dB) SEL(dB) RUN-TIME OL-TIME
12.5 86.9 87.7 86.6 96.8 :00:09 :00:14
16 103.1 105.7 95.6 112.2 :00:08 :00:04
20 112.2 113.2 110.6 119.2 :00:04
25 103.9 109.4 98.6 110.1 :00:04
31.5 89.5 95.2 82.1 95.3 :00:03
40 76.8 85.8 66.3 86.3 :00:09
50 76.8 77.9 76.4 81.5 :00:03
63 93.9 94.8 92.6 98.0 :00:02
80 112.1 113.2 110.2 120.5 :00:06
100 105.0 109.1 100.8 109.0 :00:02
125 90.6 97.1 80.9 97.2 :00:04
160 73.5 80.6 66.3 83.1 :00:09
200 76.7 77.6 76.1 80.4 :00:02
250 95.8 96.7 94.4 98.3 :00:01
315 116.0 120.3 107.9 129.3 :00:21
400 100.6 103.8 96.7 103.5 :00:01
500 89.5 92.9 85.4 92.4 :00:01
630 72.8 81.7 61.8 82.8 :00:10
800 71.1 71.9 70.4 75.4 :00:02
1,000 89.7 90.7 88.4 93.5 :00:02
1,250 106.8 107.9 105.7 110.0 :00:02
1,600 99.6 103.8 94.4 103.4 :00:02
2,000 82.6 90.7 67.8 91.2 :00:07
2,500 63.4 65.6 61.8 66.4 :00:02
3,150 83.0 88.4 49.4 96.2 :00:20 :00:06
4,000 90.4 91.4 89.2 94.3 :00:02
5,000 105.8 106.8 104.6 108.8 :00:02
6,300 100.3 102.3 97.8 101.0 :00:01
8,000 91.1 94.1 87.7 93.0 :00:01
10,000 77.4 83.9 66.7 84.0 :00:04
12,500 64.5 67.4 61.1 67.2 :00:01
16,000 84.2 90.7 50.6 92.3 :00:06
20,000 101.9 107.2 86.9 117.5 :00:37
Figure 5. Sample Printout

Quest Engineering 1800 Specifications

General

Brand	Quest Engineering
Model	1800
Category	Music Equipment
Language	English