S+S Regeltechnik RHEASREG WFS Notice D'instruction page 6

G
®
RHEASREG WFS
Mechanical paddle vane switch, paddle switch, flow sensor or vane switch relay RHEASREG
non­aggressive media in ventilation and air conditioning ducts, in air intake and exhaust devices of ventilators or electric heating registers (also for
contaminated, oily air), or as flow controller and airflow monitor.
TECHNICAL DATA
Switching capacity:
(Contact load)
Contact:
Enclosure:
Dimensions:
Base body:
Moving arm:
Vane:
Cable gland:
Enclosure temperature:
Operating difference:
Electrical connection:
Protection class:
Protection type:
Standards:
FUNCTION
Monitor:
Installation:
RHEASREG ® WFS – Vane switch, mechanical, with paddle
Type ⁄ WG01 Switch-on value
min.
WFS
W F S ­1E 2.5 m ⁄ s
Spare part
PWFS-08 Spare paddle for WFS (Stainless steel vane)
15 (8) A; 24...250 V AC
at 24 V AC min. 150 mA
dustproof microswitch as potential­free
single­pole changeover contact
plastic, material polyamide,
30% glass­globe­reinforced,
colour traffic white (similar to RAL 9016)
108 x 70 x 73.5 mm (Thor 2)
galvanised steel
brass
stainless steel, V2A (1.4301)
M 20 x 1.5; including strain relief
–40...+85 °C
≥ 1 m ⁄ s
2
0.14 ­ 1.5 mm , via screw terminals
I (according to EN 60 730)
IP 65 (according to EN 60 529)
CE conformity,
EMC directive 2014 ⁄ 30 ⁄ EU,
low­voltage directive 2014 ⁄ 35 ⁄ EU
Contact 1 ­ 3 breaks when flow rate drops to the preset value.
Simultaneously, contact 1 ­ 2 closes and
can be used as signal contact.
Device is factory­set to the minimum switch­off value,
which can be increased by turning the range adjusting screw clockwise.
vertical in horizontal air ducts.
Min. smoothing distance = 5 x duct diameter
upstream and downstream of vane. For airspeeds
> 5 m ⁄ s, vane is to be trimmed at the marked spots.
Thereby the minimum switch­off value increases
to approx. 2.5 m ⁄ s and the minimum switch­on value to approx. 4 m ⁄ s.
Switch-off value
max. min.
9.2 m ⁄ s 1 m ⁄ s
® WFS. It is used for flow monitoring of gaseous,
Item No.
max.
8 m ⁄ s 1702­ 3020­ 0000­000
7700­ 0010­ 2000­000
Rev. 2017 - V12 GB