Descriptions
The KERAMESS 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 aluminium oxide works on the basis of the capacitive measuring principle.
All the pressure transmitters in series 200/201 are highly precise and have been developed for difficult tank content measurements and, in particular, for applications with constantly high temperatures of up to 200°C. In addition to the features of the 200/201 series, the pressure transmitters in the 200H/201H series boast an integrated HART® modem. This also enables remote configuration and evaluation of the transmitters using the HART® protocol.
Features:
- high precision ? ± 0,05% FS, turn down 10, vacuum safe
- optional with HART®-protocol
- with dry ceramic measuring cell
- tank linearisation for standard tank shapes and special designs thanks to volumetric measurement
- diagnosis function for monitoring of devices
- copying of device parameters with easy transfer
- integrated on-site display or external OPUSi display and operating module for parametrisation and display of measuring values
- highly precise measurement of the content and process pressure with small measuring ranges with overload-safe ceramic measuring cell
Specification:
| General details | |||||
| Device type / measuring principle | KS 200/201/200H/201H: capacitive | ||||
| Input | |||||
| Measuring ranges | KS 200/201/200H/201H | ||||
| Standard nominal measuring ranges [bar] | relative | OP | relative | OP | absolute |
| OP = overload protection [bar] | 00.05 | 4 | 40 | 60 | 00.01 |
| 00.01 | 4 | 70 | 105 | 00.02 | |
| ±0.1 | 4 | -1…1 | 10 | 00.04 | |
| 00.02 | 6 | -1…2 | 18 | 1 | |
| 00.04 | 6 | -1…4 | 25 | 2 | |
| Special measuring ranges are | 1 | 10 | -1…10 | 40 | 4 |
| 2 | 18 | -1…20 | 40 | 10 | |
| All measuring cells are vacuum-proof | 4 | 25 | -1…40 | 60 | 20 |
| 10 | 40 | -1…70 | 105 | 40 | |
| 20 | 40 | 70 | |||
| Setting the measuring ranges | Via the keypad of | the OPUSi display and operating module / via the integrated on-site display | |||
| Optional: via HART® | |||||
| Setting ranges | Start the measuring | zero: | 0…90% | of the sensor’s nominal measuring span | |
| Measuring span span: | 10…100% of the sensor’s nominal measuring span | ||||
| Burst pressure DIN16086 | ? 4-fold measuring range | ||||
| Output | |||||
| Output signal | 2-wire: 4…20mA with a test circuit connection in the device | ||||
| Optional: 4…20mA HART® | |||||
| Fault signal | Optional: 3.8mA, 22mA, hold (i.e. holding the last value) | ||||
| Current limitation | 3.85mA and 21.5mA (normal operation) | ||||
| Integration time | Continuously selectable between 0 and 300s (setting time after a pressure leap) | ||||
| Measuring accuracy | |||||
| Reference conditions | acc. to DIN IEC 770 | ||||
| Linearity, hysteresis and repeatability as per the limit point method DIN IEC 770 | ? ± 0.05% 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 position | Any position / standing vertically (position-dependent zero point displacement) | ||||
| Medium temperature | T1: -40 to +125°C (140°C over one hour at the most) | ||||
| Ambient storage temperature | Type 201/201H: | -40…+85°C | |||
| Type 200/200H: | -30…+75°C | ||||
| (Below -20°C cable breakage might occur and the display’s function may be impaired.) | |||||
| Protection class acc. to EN60529 | IP 67 and IP 69K | ||||
| Electromagnetic compatibility | Sensitivity against interference: acc. to DIN IEC 61000-6-2 | ||||
| Interference radiation: | acc. to DIN IEC 61000-6-4 | ||||
Download Data Sheet: Pressure and Level Transmitter KERAMESS KS 200/201
Ref: hengesbach.com
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