Constructional design / case
| Design: | Two-chamber case design with screw cap. |
| Minimum case volume, excellent moisture and condensate protection | |
| Material: | Stainless steel mat.-no. 1.4301 (304) |
| Degree of protection per EN 60529: | - IP 66 - optional: IP 69K |
| Climatic category per EN 60721 3-4: | 4K4H |
| Pressure compensation: | PTFE filter system |
| Window: | Non splintering plastic: Makrolon |
| Case seal: | O-ring: NBR |
| El. connection: | Screw terminal 1 mm² |
| Cable gland: | Cable gland M16, material: PA |
| Circular connector M12 | |
| Further cable glands upon request. | |
| Weight: | Standard device without diaphragm seal and function modules approx. 0.65 kg |
Process connection
| Design: | See order details |
Material wetted parts
| Material: | Stainless steel mat. no. 1.4435 316L/316 |
| Gasket: | EPDM-FDA listed (in case of flush mounted diaphragm with O-ring) |
Measuring system
| Sensor: | Piezoresistive measuring element |
| System filling: | Synthetic oil, free of silicon FD1, FDA listed |
Hygienic design
| The surface roughness of the wetted parts made of stain-less steel are executed according to EHEDG Doc.8 and ASME BPE SF3. |
| In case of choosing the additional feature HY, we guarantee the following surface roughness values: |
| Diaphragm foil: Ra ≤ 0.38 µm Laser welds: Ra ≤ 0.76 µm Turned parts: Ra ≤ 0.76 µm |
| Further versions of hygienic design upon request. |
Accuracy
| General: | Limit point setting: | per DIN 16086 |
| Reference conditions: | per EN 60770-1 | |
| Linearity errors: | ≤ 0.15 % of span TD 5:1 no modification |
|
| Hysteresis: | ≤ 0.05 % of nominal range | |
| Repeatability: | ≤ 0.05 % of nominal range | |
| Calibration position: | Vertical mounting position | |
| Influence of mounting position: | ≤ 3.5 mbar | |
| Long-term drift (EN 60770-1): | ≤ 0.1 % / year of nominal range | |
| Temperature effect: | Case: | |
| Lower range value / upper range value | ||
| Range 0…60 °C: | ± 0.15 % / 10K of nominal range | |
| Range < 0 °C, > 60 °C: | ± 0.2 % / 10K of nominal range | |
| Process connection: (depending on design) |
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| Diaphragm seal: DN 25/1“ DN 32/1 1/2“ DN 40 DN 50/2“ HYGIENIC G1A |
Zero point error: 4.8 mbar/10K 2.3 mbar/10K 1.6 mbar/10K 0.6 mbar/10K 1 mbar/10K |
The specify zero error for the process connection is a guide value for a standard design. We can provide a detailed system calculation upon request. Systems with reduced diaphragm seal errors are also available.
Output
| General: | Delay time: | approx. 160 ms |
| Measuring cycle: | 6 measurements / second | |
| Measuring range setting: | Turndown 5:1 | |
| Basic module: 4…20 mA | Signal: | 4…20 mA, 2-wire |
| Current range: | 3.8…20.8 mA | |
| Current limitation: | approx. 22 mA | |
| Alarm state: | < 3.6 mA, optional > 21 mA | |
| Damping: | 0…120 seconds | |
| Load RB: | RB ≤ (UV-12V DC)/0,022A [Ohm] (UV = supply voltage) |
|
| Basic module: PROFIBUS PA | Signal: | digital per IEC 61158-2 |
| Protocol: | EN 50170-PROFIBUS PA, Profile 3.0 | |
| Sensor address: | 0…126 (126 = factory setting) | |
| Power consumption: | constantly 11 mA | |
| Fault current IFDE : | 2 mA | |
| Damping: | 0…300 seconds | |
| Parameterization: | SIMATIC PDM |
Supply voltage
| Basic module: | 4…20 mA | PROFIBUS PA |
| Standard design: | ||
| Functional range: | 12…40 V DC | 9…32 V DC |
| Ex-design: | ||
| Functional range: | 12…30 V DC | 9...17.5 V DC |
Temperature ranges
| Ambient: | -20…85 °C |
| Media: | depending on design, see order code |
| Storage: | -40…85 °C |
(Note safety values as per examination certificate!)
Tests and certificates
| See documents |
* Devices with cable gland or switching outputs might suffer from a short-time measuring deviation in case of strong electromagnetic fields (EN 61000-4-3).
Type series
| CV3110, CV3111 |
