Qubit Systems Inc.
Qubit Systems Inc specializes in the design of instrumentation for research and teaching in the b……...

The precise pressure transmitters are designed for use in hazardous areas of groups I and II in which the risk of explosion is high. Microcontroller-based electronic evaluation is needed for achieving high accuracy. The transmitters are gauged across the entire temperature and pressure ranges. A mathematical model can be calculated using this measurement data. This model is used for correcting all reproducible errors.
Two compensated temperature ranges are available for industrial transmitters. The level probes can be gauged in the temperature ranging from 0 to 50°C. The interface is used for reading the calculated pressure value. This value can be simultaneously processed as an analog signal. Except in the DIN 43650 plug model, the interface includes an external lead through on all products. The interface is designed as a robust RS485 half-duplex. The CCS30 software is used for recording the measured values. MODBUS RTU and KELLER Bus are available as a communication protocol.
Options
The options available for the precise pressure transmitters are:
Mining version labelled with “M” in Type Designation
Low voltage version labelled with “LV” in Type Designation
Special calculations with pressure and temperatures
Different compensated temperature and pressure ranges
Different housing-material, oil filling, and pressure thread.
Specifications
The key specifications of the precise pressure transmitters are given in the following table.
| Weight | Series 33 X Ei » 140 g,Series 35 X Ei » 160 g,Series PD-33 X Ei » 500 g |
| Material in contact with media | Stainless steel 316L (DIN 1.4435)/Viton |
| Dead volume change | < 0.1 mm3 |
| Shock endurance | 20 g (11 ms) |
| Power-ON time | 600 ms |
| Protection | IP 65 optional: IP 67 or IP 68 (with cable) |
| Vibration endurance, acc. to IEC 68-2-6 | 20 g (5...2000 Hz, max. amplitude ± 3 mm) |
| CE-Conformity | EN 61000-6-2:2005/EN 61000-6-3:2007/ EN 61326-2-3:2006 |
| Storage temperature range | -40…+120°C |
| Load resistance (kW) | <(U-10 V)/25 mA (2-wire) |
| Insulation | 10 MW/500 V |
| Operating temperature range | -40…+100 °C for T4-40… +85 °C for T5-40… +70 °C for T6 |
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