The Hengesbach VRM050D pressure transmitter is suitable for measuring the pressure and filling level in pipes. The highly overload-safe capacitative measuring cells and the diaphragm seal makes the Hengesbach VRM050D ideal for use in applications with pressure shocks or cavitations such as in separators. Measuring ranges from -1/0…4bar to -1/0…70bar and special measuring ranges are available.
The robust construction of the stainless steel field housing in IP 67 and IP 69K withstand aggressive and residue-free cleaning procedures such as those required in the food industry. All 050D series pressure transmitters are equipped with a micro-processor controlled electronics system and an accuracy of ? ± 0.2% FS. They are parametrized with a simple and user-friendly operating concept via 2 keys and a multi-color status LED. They are highly suited for applications with basic requirements of functionality and exactness.
As a process connection, the Hengesbach VRM050D comes equipped with a PZM modular system and is highly suited for applications placing the highest requirements of hygiene. The modular system PZM is certified according to EHEDG type EL-Aseptic Class I and is impermeable to micro-organisms.. The large range of process connection adapters such as the welded-in lugs for pipes, VARIVENT®, DRD flanges, DIN 11851 conical couplings, DIN 32676 clamps, etc. mean that the pressure transmitters can be used for a wide range of uses.
Features:
- the special construction of the measuring cell and process connection for systems with pressure shocks and vibration e.g. separators, …
- EHEDG-aseptic certified modular process connection system PZM
- accuracy ? ± 0,2%FS
- simple calibration, even without disconnection of the transmitter, through a switchable power supply plant/calibrator supply
- output signal 4…20mA, Turn Down 4
- simple data metering via 2-key concept and multiple-color status LED
- capacitive measuring cell, vacuum, and overload safe, stainless steel membrane
- easy to clean and high protection class IP 67 and IP 69K
Specification:
General details | ||||||||||
| Device type/measuring principle | VRM050D: capacitive | |||||||||
Input | ||||||||||
| Measuring ranges | VRM050D | |||||||||
| Standard nominal measuring range [bar] | Relative | OP | Relative | OP | Absolute | OP | ||||
| OP = overload protection [bar] | 4 | 25 | -1 to 4 | 25 | 4 | 25 | ||||
| 10 | 40 | -1 to 10 | 40 | 10 | 40 | |||||
| Special measuring ranges are available on request. | 20 | 40 | -1 to 20 | 40 | 20 | 40 | ||||
| 40 | 60 | -1 to 40 | 60 | 40 | 60 | |||||
| All measurement cells are vacuum safe | ||||||||||
| 70 | 105 | -1 to 70 | 105 | 70 | 105 | |||||
| Setting the measuring ranges | via the 2 keys within the transmitter | |||||||||
| Setting ranges | Measuring range begin zero: | 0 to 75% | of the sensor’s nominal measuring span | TD=4 | ||||||
| Measuring span | span: | 25 to 100% | of the sensor’s nominal measuring span | |||||||
| Burst pressure DIN16086 | >= 4-fold nominal measuring range | |||||||||
Output | ||||||||||
| Output signal | 2-wire: 4 to 20mA with a test circuit connection in the device | |||||||||
| Fault signal | 22mA | |||||||||
| Current limitation | 3.8mA and 21mA (normal operation, cannot be set) | |||||||||
Measuring accuracy | ||||||||||
| Reference conditions | acc. to DIN IEC 770 | |||||||||
| Linearity, hysteresis and repeatability acc. to the limit point method DIN IEC 770 | ? ± 0.2% of the sensor nominal measuring range | |||||||||
| Activation time | < 2 s (The device will carry out a self-test.) | |||||||||
| Setting time | < 1s | |||||||||
| Long-time drift | ? 0.2% of the span per year | |||||||||
| Thermal hysteresis | ? | 0.2% of the sensor nominal measuring range / 10K (-20…+80°C) from 4 bar | ||||||||
| ? | 0.3% of the sensor’s nominal measuring range / 10K (-20 to +80°C) up to 0.6 bar | |||||||||
Conditions of use | ||||||||||
| Installation position / calibration position | Any position / standing vertically | |||||||||
| Medium temperature | -40…+140°C | |||||||||
| Ambient storage temperature | -40…+85°C (below -20 °C danger of cable breakage) | |||||||||
| Protection class acc. to EN60529 | IP 67 and IP 69K | |||||||||
| Electromagnetic compatibility | acc.to EN 61326-1 | |||||||||
Construction | ||||||||||
| Electrical connection | – Standard: M16x1.5 cable screw connection, nickel-plated brass (stainless steel available on request) | |||||||||
| – Optional: M12x1 round plug-in connector, nickel-plated brass (stainless steel available on request) | ||||||||||
| – Optional: angle plug acc. to EN 175301-803 | ||||||||||
| – Optional: reference cable | ||||||||||
| Process connection | Membrane, flush-welded, CrNiSt (other materials available on request) | |||||||||
| – EHEDG type EL-ASEPTIC CLASS I, certified connection system PZM / | ||||||||||
| with M38x1.5 press screw and elastomer sealing | ||||||||||
| – EPM process seal (FDA conform) (range -20…+150°C) | ||||||||||
Construction | ||||||||||
| Materials | – Field housing / lid: | CrNiSt 1.4301 (304) | ||||||||
| – Electronics cast: | Silgel | |||||||||
| – Housing seal: | FPM (Viton®) | |||||||||
| – Pressure compensation element: | Polyamide | |||||||||
| – Process connection/connection adapter: | CrNiSt 1.4404 (304) | |||||||||
| – Process membrane: | CrNiSt 1.4435/1.4404 (316L) | |||||||||
| – Reference cable, 5-wire with reference tube: PUR (recommended: 80 m maximum) | ||||||||||
| Filling fluid | Medical mineral oil (FDA) | |||||||||
Display and operation | ||||||||||
| Display | Multiple-colour status LED | |||||||||
| Operation | 2-key concept | |||||||||
Auxiliary energy resources | ||||||||||
| Power supply / burden | 12…30V DC, max. burden: (Vsupply – 12V) / 22mA | |||||||||
| Certificates | Calibration certificate | |||||||||
| Declaration of conformity | ||||||||||
| Material certificate acc. to EN 10204 | ||||||||||
| EHEDG certificate | ||||||||||
Download Data Sheet: Flush-Mounted Pressure Transmitter VRM050D
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- LEEG Pressure Transmitter, Sensor and Switch
Ref: hengesbach.com