High-quality pressure sensor with mounted diaphragm seal
Description
Diaphragm seal systems are used to protect the pressure measuring instrument from aggressive, adhesive, crystallising, corrosive, highly viscous, environmentally hazardous or toxic media. The diaphragm made of stainless steel provides for the separation from the medium. The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.
The DSS18T complies with all requirements of the food industry. The milk thread fitting enables a hygienic process connection. The requirements of COP (cleaning out of place) are fulfilled.
Special features
- Quick cleaning, without residue
- Milk thread fitting per DIN 11851
- Suitable for cleaning out of place (COP)
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- Pressure measuring instrumentHigh-quality pressure transmitter
- Unitbar
- Measuring range—
- Output signal4 ... 20 mA, 2-wire
- Power supplyDC 8...35 V
- Electrical connectionangular connector DIN 175301-803 A
- Assemblydirect assembly
- System fill fluidKN 92 Medicinal white mineral oil; for pharmaceutical and food applications; FDA, USP, EP
- Unit of temperatureCelsius
- Process temperature min.+ 10 °C
- Process temperature max.+ 80 °C; for sterilisation (SIP) max. + 130 °C
- Ambient temperature pressure meas. min+ 10 °C
- Ambient temperature pressure meas. max+ 40 °C
- Process connection specificationGrooved union nut
- pipe standardPipe dimensions per DIN 11850 row 2
- Process connection—
- Wetted partsStainless steel 1.4435 (316L); UNS S31603
- Surface roughness wetted parts, welding seam excludedRa ≤ 0,76 µm (Ra 0.30 µin.) according to ASME BPE SF3
- Certificateswithout
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| Model | DSS18T |
| Product family | DSS |
| Subcategory | Diaphragm seal system with integrated pressure sensor |
| Pressure ranges | 0…2.5 bar · 0…6 bar · 0…10 bar · 0…16 bar · 0…25 bar · 0…1 bar · 0…1.6 bar · 0…4 bar · -1…5 bar · -1…9 bar · -1…10 bar · 0…40 psi · 0…100 psi · 0…160 psi · 0…250 psi · 0…300 psi · -30…70 inHg · -30…130 inHg · -30…145 inHg |
| Accuracy class | 0.5 |
| Accuracy standard | IEC 61298-1 |
| Process connection | Milk thread fitting per DIN 11851Milk thread fitting following DIN 11851 |
| Process temperature | −10…+80 °C |
| Output signal | 4-20mA · 4-20 mA (2-wire) |
| Power supply | 8 ... 35 V DC |
| Electrical connection | Angular connector DIN 175301-803 A |
| Case material | Stainless steel 1.4571 [316Ti] |
| Wetted parts material | Stainless steel 1.4435 [316L] |
| Ambient temperature | +10…+40 °C |
| IP rating | IP65 |
| Certifications | EHEDGCE |
| Datasheet languages | EN |
| Model DSS18T | |
|---|---|
| Design | High-quality pressure sensor, welded to diaphragm seal |
| Current output | 4 ... 20 mA(2-wire) |
| Power supply | DC 8 ...35V |
| Accuracy at reference conditions | ≤ ±0.5 %of span |
| Permissible load in Ω | Current output ≤ (power supply - 7.5 V) / 0.023 A |
| Current supply | Max.25mA |
| Dissipation loss | 828mW |
| Reference conditions (per IEC 61298-1) | Temperature: 15 ... 25 °C [59 ... 77 °F] Atmospheric pressure: 860 ... 1,060 mbar [12.5 ... 15.4 psi] Humidity: 45 ... 75 %r.h. Power supply:DC 24V Mounting position: Calibrated in vertical mounting position with pressure connection facing downwards |
| Pressure limitation | < 10 bar [150 psi]: 3 times ≥ 10 bar [150 psi]: 2 times |
| Permissible temperature range Medium Ambient Storage | -10 ... 80 °C [50 ... 176 °F], for CIP and SIP max. 130 °C [266 °F] 10 ... 40 °C [50 ... 104 °F] 10 ... 60 °C [50 ... 140 °F] |
| Material wetted non-wetted | Diaphragm: Stainless steel 1.4435 [316L] Diaphragm seal: Stainless steel 1.4435 [316L] Case: Stainless steel 1.4571 [316Ti] Zero adjustment ring: PBT/PET GF30 Angular connector: PBT/PET GF30 |
| Surface roughness wetted | Ra ≤ 0,76 μm [30 μin] per ASME BPE SF3 (except for weld seam) |
| Level of cleanliness of wetted parts | Oil and grease free per ASTM G93-03 level F and ISO 15001 (< 1,000 mg/m²) |
| System fill fluid | Medicinal white mineral oil KN 92 (FDA 21 CFR 172.878, 21 CFR 178.3620(a); USP, EP, JP) |
| Permissible humidity (per IEC 68-2-78) | ≤ 67 %r.h. at 40 °C [104 °F] (in accordance with 4K4H per EN 60721-3-4) |
| Gauge pressure | 0 ... 2.5 [0 ... 40] | ||
|---|---|---|---|
| 0 ... 6 [0 ... 100] | 0 ... 10 [0 ... 160] | 0 ... 16 [0 ... 250] | 0 ... 25 [0 ... 300] |
| Vacuum and +/- measuring range | ||
|---|---|---|
| -1 ...+5 [-30 inHg ... +70] | -1 ...+9 [-30 inHg ... +130] | -1 ...+10 [-30 inHg ... +145] |
| Electrical connection | Ingress protection 1) | Wire cross-section | Cable∅ | Permissible temperature |
|---|---|---|---|---|
| with mating connector | IP65 | max. 1.5 mm² | 6 ...8mm | -30 ...+100 °C [-22 ...+212 °F] |
View all (6)
| DN | For pipe Outer Ø x wall thickness | PN | Dimensions in mm[in] | ||||
|---|---|---|---|---|---|---|---|
| G | H | D | d₆ | Mb | |||
| 25 | 29 x 1.5 [1.142 x 0.059] | 40 | RD 52 x 1/6 [2.047 x 1/6] | 139 [5,472] | 63 [2.48] | 44 [1.732] | 26 [1.024] |
| 40 | 41 x 1.5 [1.614 x 0.059] | 40 | RD 65 x 1/6 [2.559 x 1/6] | 141 [5,551] | 78 [3.07] | 56 [2.205] | 35 [1.378] |
| 50 | 53 x 1.5 [2.087 x 0.059] | 25 | RD 78 x 1/6 [3.071 x 1/6] | 143 [5,63] | 92 [3.622] | 68.5 [2.697] | 52 [2.047] |
| Logo | Description | Country |
|---|---|---|
| FEBRUARY 2021 TYPE EL CLASS I | EHEDG Hygienic Equipment Design | European Community |
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