Larson Davis 820 Quick User Manual

Model 820 Key Functions
White Primary function keys, push button directly
Press U key first to access blue keys
Shift
Arrow Change or modify info in fields, use w/other keys
for other functions
Keys Functions
BATT Percentage power remaining in 9 V battery
CAL Calibration information and control
Cancel Return to previous function or cancel present func-
tion (acts as an ESCAPE key to exit out of a menu)
DOSE Dose and Projected Dose %
ENTER Enter new parameters selected by user
EXCD History for noise exceeding a programmed level
HIST Short interval Leq time history
INTV Statistical Interval History
LDL Allows user to recalculate TWA, SEL, dose, pro-
jected dose readings with new exchange
LDN TWA with 10 dB penalty
Leq Equivalent Level=TWA based on 3dB
Lmax Maximum SPL for overall measurement
Lmin Minimum SPL for overall measurement
Ln SPL exceeded n% of run time, 4 user selectable
Ln's shown
LOCK Access to lock system
LOG Log of all Run/Stop actions which start /stop data
taking process
MEM Displays available memory & number of stored
records
OFF Turn 820 off
ON Turn 820 on (when on acts same as "Cancel")
PEAK Highest weighted peak detector output level with
date and time of event
PRINT List of reports on scroll, key name for each one
RCL EEPROM and RAM registers
RESET Restarts a measurement by erasing values just mea-
sured
R/S Start and Stop measurements
SEL Sound Exposure Level is the total energy for 1 s
SETUP Access to parameters by number or key
SLM Current Sound Pressure Level
STR Storage registers for parameters and calibration
(0-9)
T.A. Time Weighted Average and German Takt Maximal
levels
TIME Date and time last reset or measurement start
TIMER Permits unattended measurements
UWPK Highest unweighted peak detector output level with
date/time of event
Model 820 Key Functions
White Primary function keys, push button directly
Press U key first to access blue keys
Shift
Arrow Change or modify info in fields, use w/other keys
for other functions
Keys Functions
BATT Percentage power remaining in 9 V battery
CAL Calibration information and control
Cancel Return to previous function or cancel present func-
tion (acts as an ESCAPE key to exit out of a menu)
DOSE Dose and Projected Dose %
ENTER Enter new parameters selected by user
EXCD History for noise exceeding a programmed level
HIST Short interval Leq time history
INTV Statistical Interval History
LDL Allows user to recalculate TWA, SEL, dose, pro-
jected dose readings with new exchange
LDN TWA with 10 dB penalty
Leq Equivalent Level=TWA based on 3dB
Lmax Maximum SPL for overall measurement
Lmin Minimum SPL for overall measurement
Ln SPL exceeded n% of run time, 4 user selectable
Ln's shown
LOCK Access to lock system
LOG Log of all Run/Stop actions which start /stop data
taking process
MEM Displays available memory & number of stored
records
OFF Turn 820 off
ON Turn 820 on (when on acts same as "Cancel")
PEAK Highest weighted peak detector output level with
date and time of event
PRINT List of reports on scroll, key name for each one
RCL EEPROM and RAM registers
RESET Restarts a measurement by erasing values just mea-
sured
R/S Start and Stop measurements
SEL Sound Exposure Level is the total energy for 1 s
SETUP Access to parameters by number or key
SLM Current Sound Pressure Level
STR Storage registers for parameters and calibration
(0-9)
T.A. Time Weighted Average and German Takt Maximal
levels
TIME Date and time last reset or measurement start
TIMER Permits unattended measurements
UWPK Highest unweighted peak detector output level with
date/time of event
Alpha-Numeric Keyboard Layout
Standard Keyboard.
↑ ↓ ← →
+ 7 8 9
- 4 5 6
1 2 3
S h t f i
.
0
E t n r e
C a c n l e
Press
↵ ↵
% *
access these charac-
ters.
A B C D
E F G H
I J K
S h t f i
L M
E t n r e
C a c n l e
Press
; =
C e l r a S a p e c
access these charac-
ters.
N O P Q
R S T U
V W X
S h t f i
Y Z
E t n r e
C a c n l e
Press
& @ $
\
times to access these
characters.
! ? < >
^ / ( )
` " :
S h t f i
# ,
E t n r e
C a c n l e
Alpha-Numeric Keyboard Layout
Standard Keyboard.
↑ ↓ ← →
+ 7 8 9
- 4 5 6
1 2 3
S h t f i
.
0
E t n r e
C a c n l e
Press
↵ ↵
% *
access these charac-
ters.
A B C D
E F G H
I J K
S h t f i
L M
E t n r e
C a c n l e
Press
; =
C e l r a
S a p e c
access these charac-
ters.
N O P Q
R S T U
V W X
S h t f i
Y Z
E t n r e
C a c n l e
Press
& @ $
\
times to access these
characters.
! ? < >
^ / ( )
` " :
S h t f i
# ,
E t n r e
C a c n l e
Alpha-Numeric Keyboard Layout
Alpha-numeric keys are available to enter 3 lines for the
Company Name and 1 line for Measurement Title. To enter
company and measurement information:
• Press Rm02e
• Choose name for reports and enter using alpha-numeric
keypad as shown at left. Note that multiple shift presses are
necessary to enter certain characters
• Press m and choose letters for name
• After entering name, press e d to move to next line
• Press m and enter letter for line 2
• Press e d to move to line 3
• Press m, enter letters for line 3,
• Press e d to move to line 4, and enter the
Measurement Title
• Press e (name appears on main screen)
• Press c to return to main screen
once to
U
Setup Key Functions by Number
• All parameters are accessed through R key
• Each parameter is assigned a parameter number
• Press R. Press m
• Enter item # of parameter (820 Manual chap 8) and press
e. Time, Day, Week, parameters 6-8
• Scroll through parameters using ud
• Top of parameters list: Press Uu
• Bottom of Parameter list: Ud
Setup Key Functions by Key
Major parameters (listed on keypad) are accessed by pressing
twice to
U R and desired parameter key or by pressing R,
and desired parameter key. For example, to access the interval
parameters, press RM.
Lock Parameters
• Access Lock Parameter: RUL P
• Personal password: m, enter 1-8 characters, e
• Lock Options: parameters 28-34
• Unlock system: ULm enter password, e
SLM Key Options
Current SLM, Min, Max, Pk, UW, Leq, SEL; Alm Time,
Temp, and serial communications are available by pressing
three
U
Cdu
Setup Storage Registers
• Press Usd [repeated d cycles through setup stor-
age registers 0 to 9] press e to store settings
• Press URd [0 to 9] e to recall settings
Alpha-Numeric Keyboard Layout
Alpha-numeric keys are available to enter 3 lines for the
Company Name and 1 line for Measurement Title. To enter
company and measurement information:
• Press Rm02e
• Choose name for reports and enter using alpha-numeric
keypad as shown at left. Note that multiple shift presses are
necessary to enter certain characters
• Press m and choose letters for name
• After entering name, press e d to move to next line
• Press m and enter letter for line 2
• Press e d to move to line 3
• Press m, enter letters for line 3,
• Press e d to move to line 4, and enter the
Measurement Title
• Press e (name appears on main screen)
• Press c to return to main screen
once to
U
Setup Key Functions by Number
• All parameters are accessed through R key
• Each parameter is assigned a parameter number
• Press R. Press m
• Enter item # of parameter (820 Manual chap 8) and press
e. Time, Day, Week, parameters 6-8
• Scroll through parameters using ud
• Top of parameters list: Press Uu
• Bottom of Parameter list: Ud
Setup Key Functions by Key
Major parameters (listed on keypad) are accessed by pressing
twice to
U R and desired parameter key or by pressing R,
and desired parameter key. For example, to access the interval
parameters, press RM.
Lock Parameters
• Access Lock Parameter: RUL P
• Personal password: m, enter 1-8 characters, e
• Lock Options: parameters 28-34
• Unlock system: ULm enter password, e
SLM Key Options
Current SLM, Min, Max, Pk, UW, Leq, SEL; Alm Time,
Temp, and serial communications are available by pressing
three
U
Cdu
Setup Storage Registers
• Press Usd [repeated d cycles through setup stor-
age registers 0 to 9] press e to store settings
• Press URd [0 to 9] e to recall settings
U
,
U
,