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Bourdon Tube Pressure Gauge with One or Two Fixed Switch Contacts - PGS21
Brand: WIKA Alexander Wiegand SE & Co. KGThe model PGS21 switchGAUGE is a combination of a Bourdon tube pressure gauge and a pressure switch.
It offers the usual analogue display, which can be read on-site irrespective of the power supply, and in addition the possibility to switch a potential-free electrical signal.
Features- High switching reliability and long service life.
- Design per EN 837-1.
- Switch contacts fixed to customer requirements.
- Increased ingress protection IP 65.
Specifications
Design
- EN 837-1
Nominal Size in mm
- 40, 50, 63 (Double Contact only with NS 50)
Accuracy Class
- 2.5
Switch Point Tolerance
- With double Contact: ± 4 % of Full Scale Value
- With single Contact: ± 2.5 % of Full Scale Value
- Factory-set
Scale Ranges
- 0 to 2.5 to 0 to 400 ba
Pressure Limitation
- Short Time: Full Scale Value
- Fluctuating: 2/3 x Full Scale Value
- Steady: 3/4 x Full Scale Value
Permissible Temperature
- Medium: +60° C Max.
- Ambient: -20° to +60° C
Temperature Effect
- When the temperature of the measuring system deviates from the reference temperature (+20° C): Max. ± 0.4 %/10 K of the Span
Process Connection
- NS 50, 63: G 1/4 B (Male), 14 mm flats
- NS 40: G 1/8 B (Male), 14 mm flats
- Copper Alloy, Lower Mount (LM) or Centre Back Mount (CBM)
Pressure Element
- C-Type or Helical Type
- Copper Alloy
Movement
- Copper Alloy
Dial
- NS 63: Stainless Steel, White
- NS 40, 50: Aluminium, White
Pointer
- Plastic, Black
Case
- Stainless Steel
Window
- Polycarbonate
Ingress Protection
- IP65 per EN 60529 / lEC 529 see also option, Electrical Connection via Connector
Helium Leak Test
- Leak rate 10-5 mbar*l/s
Electrical Data
- Switching Current: 5 ... 100 mA
- Switching Voltage: DC / AC 4.5 ... 24 V
- Contact load: Max. 2.4 W
- Switch Contact: Normally closed (NC) or Normally Open (NO) Double Contact only with NS 50
- Pressure Gauge for Indicating & Monitoring the Pressure in Tanks & for Signalling Leaks
- General Industrial Applications
- Machine Building
