ABB 4670 Series, Руководство пользователя

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46
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3
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6
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8
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10
m e t I n o i t p i r c s e D . o N t r a P
1
y l b m e s s A d r a d n a t S n o i t a r b il a C y r D
: s e d u l c n i h c i h w
r e n i a t n o C
d r a d n a t S n o i t a r b il a C y r D
) y l e t a r a p e s d e r e d r o e b y a m ( l e G a c il i S
0 5 0 7 9 9 7
4 6 4 7 1 2 0
2 ) U T N 5 o t 0 ( y l b m e s s A r e t t i m E 2 5 0 7 9 9 7
3 ) U T N 5 o t 0 ( y l b m e s s A r e v i e c e R 1 5 0 7 9 9 7
'O' 6 & 5 , 4 s m e t I s e d u l c n i h c i h w t i K s e r a p S g n i R 0 1 0 7 9 9 7
4 'O' g n i R 1 2 3 1 1 2 0
5 'O' g n i R 7 1 3 1 1 2 0
6 'O' g n i R 9 1 3 1 1 2 0
7 e v l a V ll a B
1
/
2
n i . P S B 9 0 5 6 1 2 0
8 r o t c e n n o C
1
/
2
n i . T P S B 0 1 5 6 1 2 0
9 e v l a V ll a B
1
/
4
n i . P S B 8 0 5 6 1 2 0
0 1 r o t c e n n o C
1
/
4
n i . T P S B 5 1 5 6 1 2 0
…APPENDIX C
C1.6 Maintenance
C1.7 Spares
Sensor Cleaning
The Model 7997/100 sensor unit is generally used on clean
water samples and maintenance should be limited mainly to
manual monthly cleaning of the flow chamber, under normal
conditions. If there is a high turbidity breakthrough, clean the
chamber immediately to ensure accurate readings.
Calibration
Calibration can be carried out using either a Dry Calibration
Standard or Formazine Solution.
C1.8 Specification
Range: ................. Programmable between 0 to 1 NTU and
0 to 30 NTU.
Principle: .............. Nephelometric.
Resolution: ........... 0.1 NTU.
Repeatability: ........ Better than 1% of span.
Accuracy: .............

2% of FSD @ 25

C
(limited by uncertainty in formazine
standards).
Temperature drift: . 0.005 NTU/10

C.
Response time: .... Varies with flow rate, typically 90% step
change in less than 45 seconds at
1 l min
–1 .
Flow Rate: ............ 0.5 to 1.5 l min –1 .
Sample operating
temperature: ......... 0 to 50

C.
Sample pressure: . Up to 3 bar.
Fig. C7 Model 7997 100
Table C1 Model 7997 100 Spare Parts