Operation; Controls; Switching On; Front Panel Facilities Description - Philips pm2521 Operating Manual

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6 . O P E R A T I O N
6 . 1 . S W I T C H I N G O N
6 . 2 . C O N T R O L S
6.2.1 .
Front panel (Fí9.22 page 142l..
T h e i n s t r u m e n t i s r e a d y f o r u s e a f t e r c o n n e c t i o n t o t h e m a i n s a n d e a r t h i n g . l t i s s w i t c h e d o n b y d e p r e s s i n g
p u s h b u t t o n - s w i t c h P O W E R .
R e m a r k s :
After switching on the display will show *CAL-
Íor about ten seconds. In this period the PM 252'l carries
out an internal calibration procedure.
After the calibration procedure the PM 2521 jumps to the function that is selected by the function selector.
When the PM 2521 is brought from a cold into a warm environment, condensation can cause incorrect
readings.
D E S C R I P T I O N
A P P L I C A T I O N
P O W E R P O W E R O N / O F F p u s h b u t t o n s w i t c h
A U T O / M A N *
STOP
R E S E T
AUTO/MAN"
STOP
RESET
M u l t i f u n c t i o n p u s h b u t t o n
P u s h b u t t o n Í o r s e l e c t i o n b e t w e e n a u t o m a t i c o r m a n u a l r a n g i n g m o d e , w i t l t e x c e p t i o n
o f f u n c t i o n s . M a n u a l r a n g i n g m o d e i s i n d i c a t e d w i t h a * o n t h e r i g h t h a n d
s i d e o f t h e d i s p l a y . T h e m a n u a l r a n g i n g m o d e f u n c t i o n s i n c o n j u n c t i o n w i t h t h e U P
a n d D O W N p u s h b u t t o n . I n a u t o m a t i c r a n g i n g m o d e , i n a 4 % d i g i ï f u n c t i o n , t h e U P
r a n g i n g l e v e l i s a t a d i s p l a y o Í 2 O 2 O O a n d t h e D O W N r a n g i n g l e v e l a t a d i s p l a y o f 0 1 8 0 0 .
F o r 3 ' / . d i g i t Í u n c t i o n t h e s e f i g u r e s r e s p e c t i v e l y a r e 2 O 2 O a n d 0 1 8 0 .
T o e l i m i n a t e t h e h y s t e r e s i s i n t h e a u t o m a t i c r a n g i n g m o d e , a h i g h e r o r l o w e r r a n g e c a r r
b e s e l e c t e d w i t h p u s h b u t t o n s U P o r D O W N .
U P b e t w e e n d i s p l a y
1 8 0 0 0 a n d 2 O 2 O O ( 1 8 0 0 - 2 0 2 0 )
D O W N b e t w e e n d i s p l a y
0 1 8 0 0 a n d O 2 O 2 0 ( 0 1 8 0 - 0 2 0 2 )
S T O P a n d R E S E T p u s h b u t t o n i n t h e t i m e r f u n c t i o n ( s ) . l f t h e S T O P / R E S E T p u s h -
b u t t o n i s d e p r e s s e d w h e n t h e P M 2 5 2 1 i s m e a s u r i n g , t h a n t h e m e a s u r e m e n t i s s t o p p e d .
l Í t h e S T O P / R E S E T p u s h b u t t o n i s d e p r e s s e d w h e n a m e a s u r e m e n t i s c o m p l e t e d , t h a n
t h e P M 2 5 2 1 i s r e s e t . a n d a n e w m e a s u r e m e n t c a n s t a r t .