Page 1
1-11/16
NPT
CONNECTION
MODEL CLS1
CAPACITANCE LEVEL SWITCH
LEVEL
For Solids, Liquids or Slurries, Fail-Safe Protection, <1 pF Sensitivity
1/2 FEMALE
CONDUIT
1-7/64
[28.18]
[42.88]
7/8
[22.23]
1 MALE NPS
PROCESS
CONNECTION
6-3/16
[157.15]
1-13/16
[46.05]
3-13/16
[96.84]
[16.67]
8-5/8
[219.08]
21/32
The Model CLS1 Capacitance Level Switch provides reliable point level
measurement of solids, liquids and slurries in metallic or non-metallic tanks and
vessels. It detects the presence or absence of material in contact with the probe by
sensing a change in the capacitance.
BENEFITS/FEATURES
• Electronics provide highly sensitive measurement detection (requires less than a 1
picofarad shift from ambient)
• State of the art technology ignores material build-up on the vessel sidewall or along
the probe assembly
• One time calibration is simple with a single multi-turn potentiometer
• Red LED on housing indicates sensor status
• Adjustable 1-30 second time delay and a 5 A, SPDT fail-safe relay output
• Addedinstallationexibilitywithverticallyorhorizontallymounting
APPLICATIONS
• High or low level detection
• Bins
• Silos
• Tanks
• Hoppers
• Chutes
SPECIFICATIONS
Service: Solids, liquids, or slurries.
Wetted Material: CPVC.
Temperature Limits: Process: -40 to 240°F (-40 to 116°C); Ambient: -40 to 185°F
(-40 to 85°C).
Enclosure Rating: NEMA 4X (IP66), PVC, dust tight, water resistant.
Switch Type: SPDT.
Electrical Rating: 5 A @ 250 VAC.
Power Requirements: 120 VAC, 1.5 VA.
Conduit Connection:3/4˝femaleNPT.
Process Connection: 1˝maleNPS.
Mounting Orientation: Verticalorhorizontal.
Sensitivity: Adjustable to < 1 pF.
Fail-Safe: Switch selectable, high/low.
Time Delay: Adjustable 1 to 30 s.
Weight: 2.0 lb (0.91 kg).
MODEL CHART
Model Description
CLS1 Capacitance level switch
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