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SERIES CLS2 | PROXIMITY CAPACITIVE LEVEL SWITCH
®
FEATURES/BENEFITS
• No moving parts permitting for no jams, no wear, nothing to break, and no maintenance
• Immune to external RF sources like walkie-talkies and cell phones as well as minimal interference with radio communication or
other electronic systems
• Automatic calibration with no need to turn calibration pots, just push the calibration button or use an external magnet to
activate the calibration without having to open the enclosure saving time
• Coat guard probe is not affected by sticky, dusty, or clingy materials that coat or build preventing false alarms with time delay
prevents false alarms from material splashing, agitation, etc.
• Status indication via an ultra-high brightness external red LED switch status indicator, and internal indicators for power,
sensor, and switch status that can be seen externally with window cap option (external LED on weatherproof model only)
• Pulp and paper processing
• Chemical processing
• Food and beverage
• Plastics
• Mining
SPECIFICATIONS
Service Liquids, powder and bulk materials compatible with wetted materials.
Wetted Materials 316 SS and polyvinylidene uoride (PVDF).
Temperature Limits:
Pressure Limit 365 psi (25 bar).
Enclosure Rating Weatherproof, NEMA 4X.
Switch Type DPDT (two form C).
Electrical Rating 8 A @ 120/240 VAC res., 30 VDC. 1/2 hp @ 120 VAC and 1/4 hp @ 240 VAC ind.
Power Requirements 12-240 VAC/DC.
Power Consumption 2.8 watts max.
Electric Connections 1/2˝ NPT conduit opening, screw termination and removable terminal block.
Process Connection 3/4˝, 1˝ or 1-1/2˝ NPT, BSPT or sanitary clamp options.
Mounting Orientation Vertical or horizontal.
Set Point Adjustment
Mounting Orientation
Response Time 0.2 s.
Time Delay Adjustable, 0 to 60 s.
Spark/Static Protection 10 M Ω dissipation resistance with spark gap. Surge current to 100A max.
Sensitivity 8 selectable settings, 1, 2, 4, 6, 8, 10, 14, 20 pF (at 30 pF nominal free capacitance).
Agency Approvals cULus.
DESCRIPTIONAPPLICATIONS
The Series CLS2 Capacitive Level Switch is a capacitive technology
level switch which can be used for liquids, powders and bulk materials.
Ambient: -40 to 185°F (-40 to 85°C), -4 to 185°F (-20 to 85°C) with under 24 VAC/DC power supply;
Process: -40 to 250°F (-40 to 121°C).
Trips when product touches probe. Cut or extend probe to length of desired trip point. Can be cut as short a 1˝ and
can be extended by welding on to probe. (Minimum length will be effected by material being sensed.)
Trips when product touches probe. Cut or extend probe to length of desired trip point. Can be cut as short a 1˝ and
can be extended by welding on to probe. (Minimum length will be effected by material being sensed.)
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DIMENSIONS WIRING DIAGRAM
[105.57]
PROTECTIVE
EARTH
4-3/16
[106.36]
Ø3/8
[Ø9.53]
GROUND SCREW
NC NO C
C
NO NC
L2
L1
3-19/32
4-5/32
[91.28]
4-1/8
[104.78]
2-19/64
[58.34]
22-21/64
[567.14]
19
[482.60]
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
-WCLS2 1 1 R K 1 -Ø19 -M20
SERIES
CLS2: Capacitive level switch
ENCLOSURE
W: Weatherproof
SWITCH
1: DPDT rated 8 A @ 12/240 VAC, 30 VDC res.
POWER SUPPLY
1: 12-240 VAC/DC
OPTIONS
M20: M20 conduit connection
with gland
PROBE LENGTH
XXX: Insertion length in inches.
Example Ø19 is 19 length. Rod
type min: 6 , with 3/4˝ sensing tip
PROCESS CONNECTION
PROBE TYPE
R: Standard rod: 316 SS, .375 diameter
T: Threaded rod: 316 SS (can attach 47 (1.2 m) eld extensions.*)
C: Cable: 316 SS with weight
1: 3/4 NPT male
2: 1 NPT male
3: 1-1/2 NPT male
4: 3/4 BSPT
5: 1 BSPT
6: 1-1/2 BSPT
8: 1-1/2 sanitary clamp
9: 2 sanitary clamp
INSULATOR MATERIAL
K: PVDF
ORDER ONLINE TODAY!
dwyer-inst.com/Product/SeriesCLS2
DWYER INSTRUMENTS, INC.
©Copyright 2020 Dwyer Instruments, Inc.
Printed in U.S.A. 6/20 DS-CLS2 Rev. 1
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
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