WIKA PS-21 User Manual

2301300.07 EN/DE/FR 12/2017
11 WIKA Operating instructions / Betriebsanleitung / Mode d'emploi PS-20, PS-21
Specifications Model PS-20 / PS-21
Pressure ranges bar
0.25 0.4 0.6 1 1.6 2.5 4 6 10 16
Over pressure safety bar
2 2 4 5 10 10 17 35 35 80
Burst pressure bar
2.4 2.4 4.8 6 12 12 20.5 42 42 96
Pressure ranges bar
25 40 60 100 160 250 400 600 1000
1)
Over pressure safety bar
50 80 120 200 320 500 800 1200 1500
Burst pressure bar
96 400 550 800 1000 1200 1700
2)
2400
2)
3000
{Vacuum, gauge pressure, compound range, absolute pressure are available}
1)
Only model PS-20.
2)
For model PS-21: The value specific in the table applies only when sealing is
realised with the sealing ring underneath the hex. Otherwise max. 1500. bar applies.
Materials
Wetted parts
Model PS-20
*)
Stainless steel
Model PS-21 Stainless steel {Hastelloy}
O-Ring: NBR {FPM/FKM or EPDM}
Case Stainless steel
Internal transmission fluid 3) Synthetic oil {Halocarbon oil for oxygen applications}
3) Not for model PS-20 with pressure ranges > 25 bar.
Power supply U
B
U
B
in VDC 10 (12) < U
B
≤ 30 (using the programming module)
Type of switch A C
Number of switching points 1 2
Switching current (max. DC 30 V) 4 2
Mode of connection PNP PNP/PNP
Switch
Function NC or NO
■
Adjustment of switching points % of span 0 ... 100
■
Switching hysteresis % of span 1 ... 99
■
Switching window % of span 0 ... 100
■
Default values low / high are set at latest 20 ms after the instrument has been switched on
4)
4)
This guarantees a clear definition of the switching state, when the instrument is
switching on within the hysteresis pressure range.
7. Starting, operation
GB

WIKA PS-21 Specifications

General

Brand	WIKA
Model	PS-21
Category	Switch
Language	English