Hengesbach Pressure and Level Transmitter Keramess KS 100/101

Description

The KERAMESS KS 100/101 pressure transmitters are suitable for taking pressure and filling level measurements in pipelines and containers. The wide range of process connections enables use in all applications in the food and pharmaceutical industries. The vacuum-proof and extremely overload-safe measuring cell with a ceramic membrane made of highly pure aluminum oxide works based on the capacitive measuring principle.

The KERAMESS KS 100/101 pressure transmitters are designed to measure from -1/0…1 to -1/0…70bar. The measuring ranges 0… 0.05 bar and -0.1… +0.1 bar are available alongside other special measuring ranges.

Thanks to the ceramic membrane, the KERAMESS KS 100/101 pressure transmitters are particularly suited for aggressive and abrasive media. The design for long-term medium temperatures of up to 125°C enables CIP and SIP cleaning methods to be used on the transmitters. The high protection classes of IP67 and IP69K guarantee that the devices can be safely cleaned on the outside with foam and a high-pressure cleaner and that moisture is reliably prevented from entering into the device.

For additional protection against moisture, the electronics are fully encapsulated in the housing. All the pressure transmitters in series 100/101 are designed for universal applications and, in particular, for applications with constantly high temperatures of up to 125°C. Furthermore, using the on-site display with series 100 and the display and operating module OPUSM in series 101, the pressure transmitters can be simply read out, configured and diagnosed.

Features:

  • precise measurements with an accuracy of ? ± 0,15% FS
  • with dry ceramic measuring cell
  • Turn Down 10
  • easy to clean an high protection classes IP 67 und IP69K
  • integrated on-site display or external OPUSM display and operating module for parametrization and display of measuring values
  • application strengths: measurement of content and process pressure with small measuring ranges with an overload-safe ceramic measuring cell, also suitable for abrasive media
  • direct entry of parameters with plain text display

Specification:

General details
Device type / measuring principleKS 100/101: capacitive
Input
Measuring rangesKS 100/101
Standard nominal measuring ranges [bar]relativeOPrelativeOPabsoluteOP
OP = overload protection [bar]00.054406000.014
00.0147010500.026
Special measuring ranges are available on request.±0.14-1…11000.046
All measuring cells are vacuum-proof00.026-1…218110
00.046-1…425218
110-1…1040425
218-1…20401040
425-1…40602040
1040-1…701054060
204070105
Setting the measuring rangesVia the keypad of the OPUSM display and operating module / via the integrated on-site display
Setting rangesStart the measuring zero:0…90% of the sensor’s nominal measuring spanTD=10
Measuring span span: 10…100% of the sensor’s nominal measuring span
Burst pressure DIN16086? 4-fold measuring range
Output
Output signal2-wire:   4…20mA with a test circuit connection in the device
Fault signalOptional: 3.8mA, 22mA, hold (i.e. holding the last value)
Current limitation3.85mA and 21.5mA (normal operation)
Integration timeContinuously selectable between 0 and 300s (setting time after a pressure leap)
Measuring accuracy
Reference conditionsacc. to DIN IEC 770
Linearity, hysteresis and repeatability as per the limit point method DIN IEC 770? ± 0.15% of the sensor’s nominal measuring range
Activation time< 5s (the device will carry out a self-test.)
Setting time (without damping)< 200ms
Long-time drift? 0.2% of the span per year
Thermal hysteresis? ± 0.75% beginning of the measuring range / ? ± 0.8% end of the measuring range
Conditions of use
Installation position / calibration positionAny position / standing vertically (position-dependent zero point displacement)
Medium temperatureT1: -40…+125°C (140°C over one hour at the most)
Ambient storage temperatureType 101: -40…+85°C
Type 100:-30…+75°C
(Below -20°C cable breakage might occur and the display’s function may be impaired.)
Protection class acc. to EN60529IP 67 and IP 69K
Electromagnetic compatibilitySensitivity against interference:  acc. to DIN IEC 61000-6-2
Interference radiation: acc. to DIN IEC 61000-6-4
Construction
Electrical connection– Standard: cable screw connection M16x1.5, nickel-plated brass, stainless steel available on request
– Optional: round plug-in connector M12x1, nickel-plated brass, stainless steel available on request
– Optional: angle plug acc. to EN 175301-803
– Optional: reference cable
Process connection– All standard front-mounted process connections and those that are commonly used by the manufacturer
Materials– Field housing / lid:CrNiSt 1.4301 (304)
– Housing seal:FPM (Viton®)
– Pressure compensation element:polyamide
– Inspection gauge (type 100):polycarbonate
– Process connection:CrNiSt 1.4404 (316L)
– Process membrane:Al2O3 (99%)
– Locking screw (type 101):CrNiSt 1.4301 (304)
– Reference cable: 5-wire with reference tube: PUR (recommended: 80m maximum)
Display and operation
DisplayLCD, 4-digit numerical display and 5-digit alphanumerical display
Type 100: integrated on-site display (cannot be separated from device)
Type 101: external OPUSM display and operating module
Displayable unitsPressure:mbar, bar, psi, Pa, mH2O, mmHg, Torr, atm, at, kg/cm²
Volume:l, hl, dm³, m³, ft³, US gal, UK gal, US bl, UK bl
Mass:kg, t, lbs, tn. sh., tn. l.
Power supply / burden12-36V DC, max. burden: (Vsupply – 12V) / 24mA
Accessories 100 series
OPUSM display and operating moduleExternal display and operating module, CrNiSt, IP 67, 41x70mm, 1m connection cable and round plug-in connector M12x1
CertificatesCalibration certificate
Declaration of conformity

Data Sheet: Pressure and Level Transmitter Keramess KS 100/101

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Ref: Hengesbach.com

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