DCS-IS Intrinsically Safe Capacitive Sensor
Product Description
The all new DCS IS is an intrinsically safe capacitive level sensor which is a reliable alternative to our range of float switches, specifically designed for use in cryogenic applications.
Features Include:
- ATEX & IECEx Intrinsically Safe Approved
- Microprocessor Based Pulse – Counting Technology
- Probe Lengths can be made to measure to suit specific applications – maximum 6m
- Suitable for non-conductive liquids only.
- Easy Push Button Set-up of Span and Zero Points.
- Process Temperature from -200°C to +200°C
Specifications
ELECTRICAL DATA | |
Operating Voltage | 15 – 25.2VDC (a minimum of 24V should be applied to the barrier) |
Operating Current | < 50mA |
Intrinsic Safety Parameters
Ui Ii Pi Ci Li |
25.2V DC 155 mA 1.2 W 0 0 |
Resolution | < 2mm +/- 0.5mm |
Stem Minimum Operating Temperature
Standard Version Low Temperature Version |
-40°C -200°C |
Stem Maximum Operating Temperature | T3 and T4 Applications |
Output Accuracy | ±1% @ 50% full scale deflection (20°C) |
Current Output Signal 1 two wire | 4 – 20mA |
Voltage Output Signal 2 two wire | 0 – 5Vdc |
Calibration (Zero, Span) | Stored in NVM |
Dielectric Constant of Liquid (- Ꜫ -) | > 3.1 |
Response time (currently) | 1000ms |
Response time (enhanced) | 250ms / 500ms |
MECHANICAL DATA | |
Weight | 1.90Kg |
Enclosure Rating | IP66 / IP68 |
Electrical Connections | Screw Terminals |
Head Material | 316L |
Stem Material | 316L Stainless Steel |
Other wetted parts | PTFE |
Maximum Stem length | Up to 6m |
Stem Diameter | 12mm |
Mounting Orientation | Vertical or horizontal |
Cable Entry | M20 x 1.5p or 1/2”NPT |
Mounting Thread | 1″ BSP Parallel (standard, other threads and flange mounting available) |
EMC Standards | EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4, EN61000-4-2 |
ATEX Standards | EN IEC 60079-0:2018
EN60079-11:2012 |
IECEx Standards | IEC 60079-0:2017 Edition 7
IEC 60079-11:2011 Edition 6 |
Dimensions
The DCS-IS can be ordered with any length of sensor stem up to 5975mm (19’ 7¼”). The stem length is the active measuring length of the sensor and should not be confused with the stem depth. The stem depth is 60mm longer and includes the non-active section above the measuring length. The stem depth (measuring +60mm) is the length from the shoulder of the mounting thread to the end of the stem probe (Non-standard mounting may have a different length of non-active section).
Operation
The DCS-IS is suitable for measuring non viscus liquids with a dielectric constant (also known as relative permittivity) shown in the tabulated data above. Viscous liquids may produce a delayed level reading, block the sensor stem and eventually dislodge the internal stem spacers.
The sensor stem is constructed from a stainless steel 316 tube around a stainless steel 316 solid rod. The rod is held centrally inside the tube using a PTFE spacer with cut outs to allow the liquid to flow inside the tube. A breather hole at the top of the stem equalises the air pressure.
Ordering Code
Please contact the sales office at [email protected] or +44 (0)1494 566 046 do discuss this product further.
All electrical equipment should be installed by a qualified/certified electrician.
Deeter Electronics Ltd follows a policy of continual development of its products and reserves the right to change specifications and/or features without notice.