Velleman DVM8852, Руководство пользователя

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DVM8852
00 (04/11/2008) Velleman
®
5
5. Overview
General: refer to the Figure 1 and Figure 2 on page 2 of this manual.
A windscreen J hold button
B LCD display K backlight button
C record start/stop button L external 9VDC jack
D setup button M USB mini-B connector
E mode select button N AC/DC output jack
F signal weighing select button O pick-up element
G max/min capture button P tripod mounting hole
H range/level select button Q battery cover
I power on/off button
LCD-display: refer to Figure 3 on page 2 of this manual.
1 UNDER the current measurement is below the selected range
2 OVER the current measurement is above the selected range
3 MAX the maximum noise level is being measured
4 MIN the minimum noise level is being measured
5 FAST fast measurement mode, measurement every 125ms
6 SLOW slow measurement mode, measurement every 1s
7 88 range indicator, lower limit
8 188 range indicator, lower limit
9 bar graph scale depends on selected range (low, medium, high, auto)
10 DATE only displayed during setup
11 18:88:88 shows time during normal operation, shows set-up codes during set-up
12 TIME indicates time display
13 188.8 measured sound level
14 auto-power off mode enabled
15 low battery indication, replace battery
16 REC datalogger enabled, data is being stored
17 FULL datalogger memory is full, connect meter to PC to save/clear memory
18 dBA A-weighted mode
19 dBC C-weighted mode
20 AUTO automatic range selection
21 HOLD hold mode, displayed value frozen
6. Operation
General
• Slide the windscreen [A] over the pick-up element [O] to avoid erroneous measurements due to
strong winds.
• Switch the sound meter on by pressing the power on/off button [I] .
• Select the sound pressure range with the range/level select button [H] . Ranges are indicated on
the display [7] , [8] and [20] . The bar graph [9] scale depends on the selected range.
[7] [8] range
30 80 low
50 100 medium
80 130 high
30 130 auto range
• When the UNDER [1] or OVER [2] indication appears, the measurement is outside the selected
range. Select an appropriate range.