LX-8809A
Data-logging Light Meter Manual
Introduction
This digital light meter is a precision i n s t r u m e n t used
to m e a s u r e l u m i n a n c e by lux or f o o t c a n d l e . It m e e t s
the C I E photopic spectral r e s p o n s e a n d is v e r y
c o m p a c t , d u r a b l e and e a s y to u s e . T h e light s e n s o r
u s e d with this m e t e r is a v e r y h a r d w e a r i n g s e n s o r ,
with a long-life silicon photo diode a n d spectral
r e s p o n s e filter.
Features
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M e a s u r i n g levels for Lux r a n g e f r o m : OLux ~
400Lux, 400Lux ~ 4KLux, 4KLux ~ 40KLux,
40KLux ~ 400KLux.
M e a s u r i n g levels for F o o t c a n d l e range f r o m :
40FC ~ 400FC, 400FC - 4KFC, 4KFC 40KFC.
High a c c u r a c y a n d rapid r e s p o n s e .
D a t a hold function to f r e e z e the current
reading.
E a s y to interrupt L C D s c r e e n , w i t h s y m b o l s ,
units etc.
A u t o m a t i c z e r o i n g , to e n s u r e you a l w a y s
obtain the best results.
Short rise and fall t i m e s .
P e a k - h o l d function w h i c h will tell y o u t h e
highest m e a s u r e m e n t d e t e c t e d .
Selectable units in Lux scale or FC scale.
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S e l e c t a b l e a u t o - p o w e r off after 15 minutes or
m a n u a l p o w e r on/off.
Maximum and minimum hold.
Relative readings.
U S B o u t p u t for c o n n e c t i n g t h e meter to a
computer.
S p a c e for 9 9 records that c a n be stored a n d
v i e w e d o n the meter.
M o r e t h a n 16,000 readings c a n be recorded
using t h e data logger f u n c t i o n .
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O p e r a t i n g t e m p e r a t u r e a n d humidity: 0 ° C ~
4 0 ° C a n d 0%rh ~ 8 0 % r h .
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S t o r a g e conditions: - 1 0 ° C - 5 0 ° C and 0 % r h ~
70%rh.
P o w e r Source: 1 9 V battery.
L e a d length on light s e n s o r : 150cm.
Light s e n s o r d i m e n s i o n s : 115L x 8 0 W x 2 0 H
(mm).
D i m e n s i o n s of the m e t e r : 170L x 8 0 W x 4 0 H
(mm).
W e i g h t of unit: 3 9 0 g
A c c e s s o r i e s include: c a r r y case, instruction
m a n u a l and battery.
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Specifications
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A 3 to 4 digit display w i t h a high speed 4 0
s e g m e n t bar g r a p h .
M e a s u r i n g levels for Lux r a n g e f r o m : OLux ~
400Lux, 400Lux - 4KLux, 4KLux ~ 40KLux,
40KLux ~ 400KLux.
M e a s u r i n g levels for F o o t c a n d l e range f r o m :
40FC - 400FC, 400FC ~ 4KFC, 4KFC 40KFC.
If w r o n g r a n g e is selected ' O L ' will show o n
the L C D screen.
C I E s p e c t r a l response
A c c u r a c y : ± 3 % rdg ± 0 . 5 % f.s. ( < 1 0 , 0 0 0 L u x )
± 4 % rdg ± 1 0 d . ( > 1 0 , 0 0 0 L u x )
S a m p l i n g rate of 1.5 t i m e s per second
( s e l e c t a b l e rate for data l o g g i n g ) .
3
1.
Name and Functions
(1)
P o w e r on/off button.
(2)
L C D Display:
L a r g e a n d clear
d i s p l a y that will
s h o w y o u the
r e a d i n g s detected
by t h e light
s e n s o r , a bar
g r a p h a n d other
useful information
4
U n i t s B u t t o n : This a l l o w s y o u to change t h e
units f r o m Lux to f o o t c a n d l e , or vice versa
w h e n taking m e a s u r e m e n t s w i t h the meter.
1 F C = 10.76Lux
B a c k l i g h t a n d L o a d B u t t o n : T o work the
back light press the button o n c e for a s e c o n d
a n d a blue light will illuminate the display. T h i s
can be t u r n e d off by p r e s s i n g the button a g a i n .
For m e m o r y , hold d o w n t h e load button for
a b o u t 4 / 5 s e c s and MEM01 will appear in t h e
right h a n d corner, indicating that there is no
data in t h e m e m o r y .
R E C a n d S e t u p Button: T o record a reading
press t h e record button o n c e a n d MEM will
a p p e a r a g a i n in the right h a n d corner with a
n u m b e r next to it, i.e. 37. T h i s number
indicates how many r e a d i n g s are stored in t h e
meter a n d will change e v e r y time the record
button is pressed. S e t u p will allow you to
enter t h e setup m o d e to c h a n g e the date, t i m e ,
a n d s a m p l i n g rate a n d e n a b l e or disable auto
p o w e r off.
P e a k Hold Button: This button shows you
the h i g h e s t and lowest p e a k detected in the
readings.
Hold B u t t o n : By pressing this button you can
f r e e z e t h e current reading o n the display for
m a n u a l recording.
(8)
(9)
(10)
R a n g e Button: A l l o w s y o u to c h a n g e t h e
r a n g e to suit your application.
Max/Min B u t t o n : T h i s button will a l l o w y o u to
v i e w the m a x i m u m a n d m i n i m u m r e a d i n g
d e t e c t e d since t h e m e t e r w a s turned o n . It is
not stored in the m e m o r y , so it will
automatically refresh every time the m e t e r is
turned on.
R E L Button: A l l o w s y o u to view relative
readings.
2.
Operating Instructions
(1)
T o turn the meter o n u s e the yellow
0
p o w e r button on t h e b o t t o m of the unit. If
a u t o p o w e r off is d i s a b l e d , press t h e b u t t o n
a g a i n w h e n r e c o r d i n g has finished to t u r n the
m e t e r off.
(2)
S e l e c t the a p p r o p r i a t e unit for your
m e a s u r e m e n t s to be t a k e n in, by u s i n g t h e
u n i t s ' button.
(3)
It is very important t h a t the black plastic cover,
protecting the w h i t e d i o d e is r e m o v e d b e f o r e
u s e . Otherwise, t h e m e t e r will c o n t i n u o u s l y
s h o w '0' until the s e n s o r is e x p o s e d to t h e
light source being m e a s u r e d .
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(4)
T o d i s a b l e or enable a u t o p o w e r off. Hold
d o w n R E C / S e t u p button a n d R a n g e / A P O
Q)
b u t t o n until this s y m b o l ,
appears or
d i s a p p e a r s . If this s y m b o l is present o n t h e
b o t t o m , left hand side of t h e L C D display,
t h e n a u t o p o w e r off h a s be e n a b l e d and t h e
m e t e r will turn off after a p p r o x . 15mins. If this
s y m b o l is no longer visible, the meter can o n l y
b e t u r n e d off manually.
(5)
B e f o r e using the meter it is best to set the
t i m e , d a t e and s a m p l i n g rate for recording a n d
s t o r i n g your m e a s u r e m e n t s . T o enter this
s e t u p m o d e , hold d o w n t h e R E C / S e t u p
b u t t o n a n d the U N I T S button
s i m u l t a n e o u s l y for a f e w s e c o n d s , until t h e
w o r d ' T i m e ' a n d the h o u r digit/s are f l a s h i n g .
Y o u a r e n o w in the s e t u p m o d e and t h e first
t h i n g y o u will set is t h e t i m e . T h e hour digit is
a l r e a d y flashing, so this will be the first digit
y o u will c h a n g e , using t h e MAX/MIN or H O L D
b u t t o n . T o c h a n g e t h e m i n u t e s press R E L
a n d c h a n g e the digit u s i n g M A X or H O L D .
R e p e a t this procedure to c h a n g e the s e c o n d s ,
t h e s a m p l i n g rate, t h e d a y , m o n t h and year.
Y o u c a n scroll back t h r o u g h to check the
i n f o r m a t i o n . To save this d a t a , press
R E C / S e t u p and UNITS simultaneously for
one second.
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If 'OL' a p p e a r s in t h e middle of t h e L C D
display, the i n s t r u m e n t is detecting r e a d i n g s
out of the s e l e c t e d range. W h e n this a p p e a r s
keeping pressing t h e range button until ' O L '
is replaced by digits. If this d o e s not
disappear, this c o u l d be due to o n e o f t w o
reasons. O n e , t h e light source y o u a r e trying
to detect a r e a d i n g f r o m is higher t h e n the
meters capacity, or t w o , the light s e n s o r is
broken. The r a n g e a n d unit that y o u r m e t e r is
in can always be s e e n in the b o t t o m right
h a n d corner.
T o freeze a n y r e a d i n g at any t i m e , p r e s s the
h o l d button a n d t h e meter will c e a s e
operation and n o t h i n g will c h a n g e o n t h e
display until h o l d is pressed again to release
the meter b a c k into m e a s u r e m e n t m o d e .
T o s e e peak results press the p e a k button
o n c e for Manu P M A X to appear at t h e b o t t o m
of the LCD s c r e e n . This m e a n s you a r e
currently v i e w i n g t h e m a x i m u m p e a k in t h e
readings, since t h e meter w a s t u r n e d o n .
W h e n the button is pressed a g a i n , P M I N will
a p p e a r and this will s h o w the s m a l l e s t peak in
t h e m e a s u r e m e n t s . T o exit peak m o d e
completely, p r e s s t h e button a g a i n .
(9)
(10)
F r o m w h e n the m e t e r is s w i t c h e d o n , it will
a u t o m a t i c a l l y store a m a x i m u m and m i n i m u m
r e a d i n g , w h i c h c h a n g e e v e r y time the m e t e r
d e t e c t s any readings t h a t e x c e e d the c u r r e n t
m a x i m u m and m i n i m u m . T o view t h e s e
v a l u e s , press MAX/MIN button, o n c e f o r
M A X to a p p e a r a n d t h e m a x i m u m result will
b e s h o w n in place of t h e current r e a d i n g . T h e
m e t e r is still in o p e r a t i o n , whilst in this m o d e ,
so it will c h a n g e w h e n t h e m a x i m u m is
e x c e e d e d . Press t h e b u t t o n again to v i e w t h e
m i n i m u m value a n d a g a i n to exit this m o d e .
T o v i e w a relative r e a d i n g , press the R E L
b u t t o n once and M a n u will appear at the
b o t t o m of the s c r e e n . T h e m e a s u r e m e n t
s h o w n in the middle o f t h e display is t h e
relative reading. W h a t this m o d e d o e s for y o u
is w o r k out the d i f f e r e n c e b e t w e e n t h e first
r e a d i n g and s e c o n d r e a d i n g detected by t h e
light sensor on the m e t e r . For e x a m p l e , if t h e
first reading w a s 60 a n d t h e second w a s 4 0 ,
t h e relative reading s h o w n on the m e t e r w o u l d
be 2 0 . S o with e v e r y t w o readings that t h e
m e t e r takes the i n s t r u m e n t will automatically
w o r k out the relative r e a d i n g . T o exit t h e
relative m o d e , press t h e R E L button.
Supplied w i t h this unit is a U S B c a b l e , for
connecting y o u r m e t e r to the c o m p u t e r , to
d o w n l o a d a n y l o g g e d data in the m e t e r and
view the m e m o r y results, w h i c h a r e m a n u a l l y
saved into t h e m e m o r y by p r e s s i n g t h e L O A D
button. O n t h e left h a n d side of t h e unit, you
will see this s y m b o l ,
^ ° . A b o v e this
symbol is t h e w h e r e the U S B c a b l e will
connect into t h e meter. This s y m b o l will also
display on t h e L C D s c r e e n w h e n t h e meter
has b e e n c o n n e c t e d to the c o m p u t e r .
<
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T h e back light button is usefully in d i m l y lit
areas w h e r e v i e w i n g the display m a y be
difficult. W h e n this button is p r e s s e d the L C D
is brightly lit w i t h a blue light.
W h e n you h a v e finished using t h e m e t e r ,
please e n s u r e that the protective c a p for the
light sensor, is p l a c e d back over t h e d i o d e
and the m e t e r is correctly stored in t h e
carrying c a s e p r o v i d e d .
This meter d o e s h a v e a m e m o r y f u n c t i o n and
a data logger f u n c t i o n . T h e m e m o r y is for
manually r e c o r d i n g the current r e a d i n g by
pressing t h e R E C / S e t u p button. T h e
a d v a n t a g e w i t h this is you can a c t u a l l y scroll
through t h e s a v e d data in the m e m o r y o n your
meter, w i t h o u t h a v i n g to plug y o u r m e t e r into
io
a pc. By holding d o w n the L O A D b u t t o n for 5
s e c o n d s , you c a n a c c e s s the m e m o r y a n d t h e
m e t e r will c e a s e o p e r a t i o n , allowing y o u to
v i e w the s a v e d d a t a b y using MAX/MIN o r
H O L D . T o return t h e instrument to n o r m a l
o p e r a t i o n , hold d o w n L O A D for 5 s e c o n d s .
O n c e you have set y o u r sampling rate o n t h e
meter, you have to m a n u a l l y tell the m e t e r to
start recording by h o l d i n g M E M / S e t u p f o r 5
s e c o n d s . The w o r d M E M will c o n t i n u o u s l y
f l a s h in the top right h a n d corner, indicating
t h a t the meter is n o w in data logger m o d e a n d
will continue flashing until the meter is t a k e n
o u t of this m o d e by pressing M E M / S e t u p for 5
s e c o n d s . W h e n t h e m e m o r y for data l o g g i n g
is full the letters ' O L ' will appear. R e t u r n t h e
m e t e r to normal o p e r a t i o n by holding d o w n
M E M / S e t u p , a n d t h e n clear the data b y
holding d o w n L O A D a n d M E M / S e t u p
simultaneously.
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Battery C h e c k a n d M a i n t e n a n c e
This i n s t r u m e n t is p o w e r e d by a 9 V battery and
w h e n this battery is running l o w a battery
symbol ~
will a p p e a r o n t h e L C D screen
indicating t h a t t h e battery will n e e d c h a n g i n g .
To c h a n g e t h e battery, e n s u r e t h a t the meter is
switch off a n d r e m o v e the battery cover.
Disconnect t h e battery f r o m t h e instrument,
replace w i t h n e w battery a n d r e p l a c e the battery
cover.
To keep t h e m e t e r w o r k i n g correctly, regular
m a i n t e n a n c e is required. W i t h a d a m p cloth,
clean the w h i t e d i o d e on the light s e n s o r , to
r e m o v e a n y dirt or dust that m a y h a v e settled
u p o n it w h i l s t in use. Do not s t o r e this
instrument in a n y areas w h e r e t h e t e m p e r a t u r e
or humidity is excessively h i g h , a s any melting
of parts, o r m o i s t u r e in the c o m p o n e n t s could
c a u s e s e v e r e d a m a g e to the e l e c t r o n i c s of the
unit. Calibration of this i n s t r u m e n t will vary, d u e
to o p e r a t i n g conditions and r e g u l a t i o n s and it is
usually r e c o m m e n d e d that t h e m e t e r is
calibration a n n u a l l y .
12
Recommended Illumination
OFFICE
FACTORY
HOTEL
STORE
HOSPITAL
SCHOOL
LOCATIONS
Conference, Reception
room
Clerical work
Typing draftinq
Visual work at production
line
Inspection work
Electronic parts assembly
line
Packing work, Entrance
passage
Public room, Cloakroom
Reception
Cashier
Indoors Stairs Corridor
Show window, Packing
table
Forefront of show window
Sickroom, Warehouse
Medical Examination
Room
Operating room,
emergency treatment
Auditorium, Indoor
Gymnasium
Class room
Laboratory, Library,
Drafting, room
5.
Lux
200-750
FC
18-70
700-1,500
1,000-2,000
300-750
65-140
93-186
28-70
750-1,500
1,500-3,000
70-140
140-279
150-300
14-28
(1)
Start W i n d o w s
(2)
Insert t h e C D into the C D d r i v e .
(3)
100-200
200-500
750-1,000
150-200
750-1,500
9-18
18-47
70-93
14-18
70-140
1,500-3,000
100-200
300-750
140-279
9-18
28-70
750-1,500
70-140
100-300
9-28
200-750
500-1,500
18-70
47-140
I n s t a l l i n g the S o f t w a r e
If installing w i z a r d d o e s not a p p e a r a u t o m a t i c a l l y ,
a l l o w i n g y o u t o install the s o f t w a r e . G o to S T A R T
at the b o t t o m o f t h e d e s k t o p t h e n R u n . . . t h e n
b r o w s e f o r L i g h t Meter ( D : ) w h i c h is the n a m e o f
the s o f t w a r e y o u w i s h to i n s t a l l .
(4)
By c l i c k i n g o n L i g h t Meter ( D : ) it will o p e n u p
t h e files s t o r e d within t h e C D . O p e n t h e S E T U P
file a n d f o l l o w t h e i n s t r u c t i o n s t o install the
software.
O n c e this is c o m p l e t e y o u will s e e t h i s i c o n ,
Light meter
appear on your desktop. This means that
installation w a s s u c c e s s f u l , but b e f o r e y o u c a n u s e
t h e software y o u n e e d to install t h e h a r d w a r e . D o not
remove the C D .
13
14
T h e following i n s t r u c t i o n s for installing t h e
h a r d w a r e do not h a v e to be done if y o u h a v e a n y
of the following p r o d u c t s : S L - 8 8 5 1 , S L - 8 8 5 2 or L X 1309. A s , all of t h e s e p r o d u c t s are m a d e by the
s a m e c o m p a n y a n d all w o r k u s i n g the s a m e
hardware.
6.
Installing the H a r d w a r e
(1) W i t h the C D for t h e software still in t h e C D drive,
t u r n the meter o n a n d plug the meter into t h e
c o m p u t e r using t h e U S B cable s u p p l i e d w i t h the
meter.
(2) A t the bottom of t h e d e s k t o p , on t h e right h a n d
s i d e a m e s s a g e will s h o w that the c o m p u t e r has
d e t e c t e d new h a r d w a r e in the U S B port. D o u b l e
c l i c k on this m e s s a g e .
(4) O n c e y o u h a v e clicked F I N I S H you will notice t h a t
the s a m e box asking you to install the h a r d w a r e
will a p p e a r a g a i n , this is to install the s e c o n d
driver. Install in the s a m e w a y as you did for t h e
p r e v i o u s driver. In the last w i n d o w it should s h o w
C P 2 1 0 1 U S B to U A R T B r i d g e Controller'. Click
F I N I S H a n d both h a r d w a r e d r i v e r s should n o w be
installed.
If you w i s h to un-install the drivers in the add or
r e m o v e p r o g r a m s you will not find t w o separate
drivers with t h e n a m e s ' C P 2 1 0 1 U S B C o m p o s i t e
D e v i c e ' a n d C P 2 1 0 1 U S B to U A R T B r i d g e
C o n t r o l l e r ' . Y o u ' l l find o n e driver c a l l e d ' C P 2 1 0 x U S B
to U A R T B r i d g e Controller' this is b e c a u s e both
drivers a r e s a v e d together, so by un-installing this y o u
are in fact un-installing both t h e drivers.
7.
(3) B y double clicking o n this m e s s a g e a w i n d o w
s h o u l d appear a s k i n g y o u to install t h e h a r d w a r e .
O n this w i n d o w click 'No, not this time', as you
d o not need to c o n n e c t to the w i n d o w s u p d a t e .
Follow the instructions to install the h a r d w a r e , but
b e f o r e you press F I N I S H check that it r e a d s
C P 2 1 0 1 U S B C o m p o s i t e D e v i c e ' in t h e w i n d o w
this is the first h a r d w a r e driver.
U s i n g t h e Software
O p e n t h e software a n d c o n n e c t
t h e m e t e r to the c o m p u t e r w i t h
t h e U S B cable.
)FFLIN
(2) T u r n t h e meter on a n d hold
d o w n R E C / S e t u p button a n d
R a n g e / A P O button until this
C)
s y m b o l , ^ - ^ d i s a p p e a r s . If this
s y m b o l is in the b o t t o m left h a n d corner, of
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16
the LCD s c r e e n , the software will not detect
the meter. A s t h e auto power off will affect
any d o w n l o a d s m a d e o n the s o f t w a r e and
stop the c o n n e c t i o n w h e n the unit p o w e r s off.
(3) O n the s o f t w a r e y o u will see a n i m a g e of your
light meter that displays ' O F F L I N E ' o n the
screen. T o c r e a t e a connection g o to C o m
Port (C) a n d o n the drop d o w n m e n u select
C o m 3 (M). T h e light meter i m a g e o n the
software s h o u l d n o w be d i s p l a y i n g t h e s a m e
information a s y o u r light meter. In s o m e cases
this c o m port will not work and C o m 4 (4) will
have to be u s e d instead, but this will w o r k
exactly the s a m e as it w o u l d w i t h C o m 3 (M)
selected.
V i e w i n g S t o r e d Data
(1) T h i s s o f t w a r e can be u s e d to view stored d a t a
in t h e m e t e r and to log d a t a whilst the m e t e r is
c o n n e c t e d to the c o m p u t e r . T o view the data
r e c o r d e d by the meter u s i n g the data logger
f u n c t i o n , g o to D a t a L o g g e r ( D ) on the m e n u
bar at the top of the s c r e e n a n d a loading
w i n d o w saying ' L o g g i n g . . . ' will appear.
(2) W h e n t h e software h a s f i n i s h e d loading y o u r
d a t a , a 'Light D a t a l o g g e r G r a p h ' w i n d o w will
a p p e a r . In this w i n d o w y o u will see a blank
g r a p h , with a list of all y o u r recorded data o n
t h e left h a n d side. D o u b l e click on the data
that y o u w i s h to view a n d a red line will
a p p e a r o n the g r a p h .
(3) T o z o o m in on certain
a r e a s of the graph,
put t h e cursor of the
m o u s e o n the g r a p h
a n d h o l d d o w n the left
h a n d click, to d r a w a
s q u a r e o v e r the area
^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
you w i s h to z o o m in
o n . T o z o o m in further, d o t h e s a m e thing
a g a i n . T o undo z o o m g o to U n d o z o o m at t h e
t o p of t h e s c r e e n .
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18
(4) At the top of t h e
w i n d o w y o u will
see a tool c a l l e d
YOrrSI I A n d Y t i A I N S
Y Of F S 6 T ( B V )
Y GAMS/ON
' Y A x i s ' . If y o u
click o n this
3
function a w i n d o w
called ' Y
OFFSET(DIV)'
will appear. T h i s
screen will a l l o w you to c h a n g e t h e divisions
on the g r a p h using the drop d o w n m e n u s .
(5) Once y o u h a v e finished with t h e data logger
w i n d o w , y o u c a n save your d a t a a n d print it
using t h e tool b a r at the top of t h e s c r e e n .
(6) O n your m e t e r y o u can also s a v e d a t a in the
m e m o r y of t h e instrument m a n u a l l y , by
pressing R E C / S e t u p . T o view this data y o u
can either scroll through t h e results o n the
meter (see O p e r a t i n g Instructions, part 14). O r
you c a n a c c e s s t h e m through t h e software, by
clicking o n t h e Mem(M) on t h e t o p of t h e
software w i n d o w . W h e n this h a s b e e n
pressed a ' L i g h t Data L i s t ' w i n d o w , with a list
of the results m a n u a l l y record will appear. Y o u
cannot v i e w this data as a g r a p h , b u t you c a n
save a n d print t h e results.
1
19
Recording using the Software
(1) U s i n g the software to
record results is v e r y
s i m p l e . Plug t h e
m e t e r in, as n o r m a l
a n d g o to this s y m b o l
• . i . K M *
..
i
M
Sample M.ir Setup
Sample Rale [i
Sec
B
Set the s a m p l e rate a n d press o k . A s
s o o n a s y o u h a v e d o n e this, a red line will
b e g i n moving o n t h e g r a p h , recording t h e
results direct f r o m t h e light meter.
(2) W h e n you have f i n i s h e d recording p r e s s t h e
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(3) W i t h t h e g r a p h you can z o o m in o n certain
a r e a s , like the data logger w i n d o w , to see
m o r e d e t a i l e d results. T o u n d o z o o m use this
symbol, ®
and the g r a p h will return back
to its original state.
(4) A n o t h e r similarity with t h e d a t a logger w i n d o w
is you c a n set the divisions for the 'y' axis.
H o w e v e r , recording using t h e software has a n
a d v a n t a g e . This a d v a n t a g e is y o u can s e e ,
very clearly w h a t the s a m p l e rate, time and
date w a s of the recorded d a t a a n d you can
s e e a m a x i m u m and m i n i m u m result and the
time a n d d a t e they w e r e a l s o r e c o r d e d . A n
a v e r a g e result is also g i v e n .
(5) T h e results can be printed a n d s a v e d w h e n
r e c o r d i n g is finished.
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