We use cookies to ensure you get the best experience on our website. For more information on how we use cookies, please see our cookie policy.
By clicking "Accept", you agree to our use of cookies.
Learn more.

Technical documents and specifications for this product.
Siemens CLS 200
Pointek CLS200 (standard version) is a versatile inverse frequency shift capacitance level and material detection switch with optional rod/cable choices and configurable output. CLS200 is ideal for the detection of liquids, solids, slurries, foam, and interfaces and has the capability to tune out build-up on the probe.
Pointek CLS200 standard version features 3 LED indicators with basic relay and solid-state switch alarms. It is a universal switch suitable for solids, liquids, and interface detection. The power supply is galvanically isolated and accepts a wide range of voltages (12 to 250 V AC/DC). When used with a thermal isolator, the stainless steel and PPS (PVDF optional) materials used in the probe construction provide a temperature rating of up to 125 °C (257 °F) on the process wetted portion of the probe. The switch responds to any material with a dielectric constant of 1.5 or more by detecting a change in oscillating frequency, and it can be set to detect before contact or on contact with the probe. The CLS200 operates independently of the tank wall or pipe, so it does not require an external reference electrode for level detection in a non-conductive vessel such as concrete or plastic (EMC regulations applicable in some regions).
Key Applications: liquids, slurries, powders, granules, pressurised applications, hazardous areas.
| Specification | Value |
|---|---|
| Mode of operation | Inverse frequency shift capacitive level detection |
| Measuring principle | Change in picoFarad (pF) |
| Output signal - Relay output | 1 SPDT Form C relay Max. contact voltage: 30 V DC, 250 V AC Max. contact current: 5 A DC, 8 A AC Max. switching capacity: 150 W DC, 2 000 VA AC Time delay (ON and/or OFF): 1 ... 60 s |
| Output signal - Solid-state output | Output: Galvanically isolated Protection: Against reversed polarity (bipolar) Max. switching voltage: 30 V DC, 30 V peak AC Max. load current: 82 mA Voltage drop: < 1 V, typical at 50 mA Time delay (pre or post switching): 1 ... 60 s |
| Rated operating conditions - Location | Indoor/outdoor |
| Ambient conditions - Ambient temperature | ‑40 ... +85 °C (‑40 ... +185 °F)2) |
| Ambient conditions - Storage temperature | ‑40 ... +85 °C (‑40 ... +185 °F) |
| Ambient conditions - Installation category | II |
| Ambient conditions - Pollution degree | 4 |
| Medium conditions - Relative dielectric constant εr | Min. 1.5 |
| Medium conditions - Process temperature | Without thermal isolator: -40 ... +85 °C (-40 ... +185 °F)2) With thermal isolator: -40 ... +125 °C (-40 ... +257 °F) |
| Medium conditions - Process pressure (rod version) | -1 ... +25 bar g (-14.6 ... +365 psi g) (nominal) |
| Medium conditions - Process pressure (cable version)3) | -1 ... +10 bar g (-14.6 ... +150 psi g) (nominal) |
| Medium conditions - Process pressure (sliding coupling version) | -1 ... +10 bar g (-14.6 ... +150 psi g) (nominal) |
| Electromagnetic compatibility | To comply with CE and UKCA EMC regulations (where applicable); the CLS200 should be installed per the instruction manual. |
| Design - Enclosure | Epoxy-coated aluminium with gasket Optional thermal isolator: 316L stainless steel |
| Design - Connection | Removable terminal block, max. 2.5mm² |
| Design - Degree of protection | IP65/Type 4/NEMA 4 (optional IP68) |
| Design - Cable inlet | 2 x M20 x 1.5 thread (option: 2 x ½" NPT conduit entry including 1 plugged entry) |
| Power supply | 12 ... 250 V AC/DC, 0 ... 60 Hz max. 2 W |
| Certificates and approvals - General Purpose | CSA, FM, CE, UKCA, RCM |
| Certificates and approvals - Dust Ignition Proof | ATEX II 1/2 D Ex ia/tb [ia Da] IIIC TXDa/Db, ATEX III 2(1) D Ex ia tb [ia Da] IIIC TX Db UKEX II 1/2 D Ex ia/tb [ia Da] IIIC TXDa/Db, UKEX III 2(1) D Ex ia tb [ia Da] IIIC TX Db |
| Certificates and approvals - Flameproof Enclosure With IS Probe | ATEX II 1/2 G Ex ia/db [ia Ga] IIC TX Ga/Gb, ATEX II 2(1) G Ex db ia [ia Ga] IIC TX Gb UKEX II 1/2 G Ex ia/db [ia Ga] IIC TX Ga/Gb, UKEX II 2(1) G Ex db ia [ia Ga] IIC TX Gb |
| Certificates and approvals - Dust Ignition Proof with IS Probe | CSA/FM Class II, Div. 1, Groups E, F, G CSA/FM Class III T4 |
| Certificates and approvals - Explosion Proof Enclosure With IS Probe | CSA/FM Class I, Div. 1, Groups A, B, C, D CSA/FM Class II, Div. 1, Groups E, F, G CSA/FM Class III T4 |
| Certificates and approvals - Marine | Lloyds Register of Shipping, Categories ENV1, ENV2, and ENV5 |
| Certificates and approvals - Overfill Protection | WHG (Germany), VLAREM II |
| Certificates and approvals - Others | Pattern Approval (China), SIL |
2) Thermal isolator is used if process connection temperature exceeds 85 °C (185 °F)
3) Pressure rating of process seal is temperature dependent. See also CLS200 pressure/temperature curves.