Description
Hengesbach PZM/VRM 200/201 Pressure and Level Transmitter digital pressure and level transmitters PIEZOMESS PZM / VARIMESS VRM – Series 200, with their O-ring seals, are suitable for pressure and level measurements without dead spaces, under strict cleanliness conditions, as well as for viscous and crystallizing media. They have a modular, flush-mounted connection concept with various adaptors.
The PIEZOMESS PZM / VARIMESS VRM – Series 100 consists of one basic device, which can be combined with various application-specific adaptors, e.g. welding sockets, DRD, VARIVENT, DIN 11851, Clamp, Flange DIN, etc. In combination with the advantages of digital electronics, e.g. a large measuring range and on-site adjustability, this concept results in clearly reduced storage space and spare parts and thus to a cost reduction in materials administration.
During operation, various pressure units can be shown on the local display (OPUS), along with the sensor temperature as a secondary process indicator. The display and operating module has either been integrated into the field housing or is available as an external housing with a plug connection.
Hengesbach PZM/VRM 200/201 Features:
- High precision ? ± 0,05% FS, turn down 10, vacuum safe
- Further scope of functions thanks to programmability
- Optional with HART® protocol
- Tank linearisation for standard tank shapes and special designs thanks to volumetric measurement with OPUSi
- 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 parametrization and display of measured values
- Application strength: highly precise measurement of content pressurized tanks / vacuum measurements with high temperatures
- EHEDG-aseptic certified modular process connection system
Specification:
| General details | ||||
| Device type / measuring principle | PZM 200/201/200H/201H: piezoresistive | |||
| VRM 200/201/200H/201H: capacitive | ||||
| Input | ||||
| Measuring ranges | PZM 200/201/200H/201H | |||
| Standard nominal measuring ranges [bar] | relative | OP | absolute | OP |
| OP = overload protection [bar] | -1/0…0.35 | 1 | ||
| -1/0…1 | 3 | 0…1 | 3 | |
| -1/0…2.5 | 8 | 0…2.5 | 8 | |
| Special measuring ranges | -1/0…5 | 15 | 0…5 | 15 |
| -1/0…10 | 30 | 0…10 | 30 | |
| All measuring cells are vacuum-proof | -1/0…30 | 90 | 0…30 | |
| -1/0…100 | 250 | 0…100 | ||
| Setting the measuring ranges | Via the keypad of the OPUSi display and operating module / via the integrated on-site display | |||
| Optional: via HART® (for the range of functions see the operating instructions) | ||||
| Setting ranges | Start the measuring zero: | 0…90% | of the sensor’s nominal measuring span | TD=10 |
| 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) | |||
| Reference conditions | acc. to DIN IEC 770 | |||
| Linearity, hysteresis and repeata bility 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 (VRM) | |||
| ? ± 0.2% of the sensor’s nominal measuring range / 10K (-20 to +80°C) from 4bar (PZM) | ||||
| ? ± 0.3% of the sensor’s nominal measuring range / 10K (-20 to +80°C) up to 0.6bar (PZM) | ||||
| Conditions of use | ||||
| Installation position / calibration position | Any position / standing vertically | |||
| Medium temperature | PZM: | T1: | -40…+125°C (140°C over one hour at the most) | |
| T2: | -40…+200°C (high-temperature version) | |||
| VRM: | -40…+140°C | |||
| 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 PZM/VRM 200/201
Reference: hengesbach.com
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