Table 3 Wash Medium Parameters For Integral Wash Nozzles In; Table 4 Wash Medium Parameters For Flow Cell Wash Nozzle Afc; Table 5 Wash Medium Parameters For Safe-Drive Isolation Valve - Vaisala PR-23 Series User Manual

PR-23 Series User Guide
Table 3 Wash medium parameters for integral wash nozzles in PR‑23‑AP/GP
Minimum
above process
pressure
Steam (SN) 2 bar (30 psi)
Water (WN) 2 bar (30 psi)
High pressure 15 bar (220 psi)
water (WP)
Table 4 Wash medium parameters for flow cell wash nozzle AFC
Minimum
above process
pressure
Steam (SN) 3 bar (45 psi)
Water (WN) 3 bar (45 psi)
High pressure 25 bar (350 psi)
water (WP)
Table 5 Wash medium parameters for Safe‑Drive isolation valve nozzle SDI
CONC %
value
Steam (SN) 10 ... 30 %
30 ... 60 %
60 ... 90 %
High pressure water (WP)
CAUTION!
process media can burn to the prism surface if steamed for longer time. In case of
coating, shorten the wash interval.
For the Automatic wash cut parameter, see
In water wash, water temperature should be above the process temperature.
38
Maximum
above process
pressure
4 bar (60 psi)
4 bar (60 psi)
40 bar (600 psi) 10 s
Maximum
above process
pressure
6 bar (90 psi)
6 bar (90 psi)
35 bar (500 psi)
Minimum Maximum
above above
process process
pressure pressure
2 bar (30 psi) 4 bar (60 psi) 2 ... 3 s
3 bar (45 psi) 6 bar (90 psi) 3 s
4 bar (60 psi) 8 bar
(120 psi)
25 bar 30 bar
(350 psi) (435 psi)
In steam wash, do not exceed the recommended wash times, because some
Wash time Recovery
3 s 20 ... 30 s
3 s 20 ... 30 s
20 ... 30 s
Wash time Recovery
3 ... 5 s 20 ... 30 s
10 ... 15 s 20 ... 30 s
10 ... 15 s 20 ... 30 s
Wash time Recovery
20 s
20 s
3 ... 5 s 20 s
10 ... 15 s 20 s
Setting prism wash parameters (page
IM-EN-PR23-E
Interval
20 ... 30 min
20 ... 30 min
10 ... 20 min
Interval
20 ... 30 min
10 ... 20 min
10 ... 20 min
Interval
120 ... 360 mi
n
20 ... 60 min
15 ... 25 min
5 ... 20 min
82).