11
Environmental effects
Environmental effects
The typical time intervals needed to stabilize after changes in environmental conditions
include:
•
For temperature change of 10 ºC (18 ºF) allow at least 5 minutes.
•
For relative humidity change of 30% (non-condensing) allow at least 30 minutes.
•
For static pressure change of 10 kPa allow at least 5 seconds.
Temperature Ranges
User Interface
Display
Digit Size: 2 cm ( ¾”)
Resolution: 0.1 dB
Update Rate: 0.5 sec.
Keypad
5 keys: F/S key, A/C key, Mode key, Run/Stop key, Power On/Off key.
Measurements
Displayed data and
status indicators
Sound Pressure Level (SPL), Average value (L
EQ
/L
AVG
),
LED Alert , Maximum value (M
AX
), Minimum value
(M
IN
), and Run-Time (max 99 hours), Overload (O
L
), and
Under-Range (U
R
)
Display Range
Linearity Range
40 to 130 dB (Dynamic range)
45 to 130 dB (Dynamic range)
Frequency Weighting
A or C
Time Response
Fast (125 msec) or Slow (1 sec)
Exchange Rate (ER)
3 dB or 5 dB
Operating temperature:
Operating atmospheric pressure:
32
⁰
F to 104
⁰
F (0
⁰
C to 40
⁰
C)
80 -110kPa
Relative humidity:
0%-90%, non-condensing
Storage temperature:
-4
⁰
F to 158
⁰
F (-20
⁰
C to 70
⁰
C)
Storage atmospheric pressure:
50 -150kPa
