DatasheetDynisco SPX4222 / SPX4622 Smart Pressure Transmitters
The Dynisco SPX4222 and SPX4622 Series are variable, smart 2-wire pressure transmitters with a 4…20 mA output signal. They have been developed specifically for use in hazardous areas and are optionally available with a HART™ interface. This makes the transmitters particularly suitable for production plants in the plastics and chemical industries where reliable pressure measurement, high noise immunity and flexible parameterization are required.
The transmitters are certified according to ATEX II 2 (1) G 100a with intrinsic safety EEx ia IIC T4/T6. Versions with HART™ interface can also be supplied for use outside hazardous areas. The simple 2-wire connection enables cost-effective installation, while signal transmission remains reliable even in environments with high electromagnetic interference.
All SPX4222 and SPX4622 models feature a sensing tip with 1/2″-20 UNF connection thread for installation in standard mounting holes. The devices are available with various connections, including connector versions for field use. Optional integrated, replaceable thermocouples or Pt100 elements are available for simultaneous temperature measurement close to the pressure sensing diaphragm.
| Type | Smart 2-wire pressure transmitter with 4…20 mA output |
|---|---|
| Series | Dynisco SPX4222 / SPX4622 |
| Models | SPX4222 and SPX4622 |
| Application | Pressure measurement in plastics and chemical plants, optionally for hazardous areas |
| Output signal | 2-wire 4…20 mA with superimposed digital communication for models with option “B” HART™ protocol |
| Optional communication | HART™ interface |
| Pressure ranges | 0…17 bar to 0…2000 bar |
| Accuracy SPX4222 | ±0.25 % F.S. according to BFSL; up to 70 bar ±0.5 % F.S. |
| Accuracy SPX4622 | ±0.50 % F.S. according to BFSL |
| Repeatability | ±0.1 % F.S. |
| Maximum overload | 2 × pressure range; 1000 and 1400 bar ranges max. 1750 bar; 2000 bar range max. 2450 bar |
| Burst pressure | 6 × pressure range, max. 3100 bar |
| Material in contact with media | 15-5 PH stainless steel, material no. 1.4545, standard DyMax™ coated |
| Optional wetted materials | Hastelloy C-276, Inconel 718 |
| Max. housing operating temperature | Standard and EEx ia IIC up to T1…T4: 85 °C; EEx ia IIC up to T6 versions: 50 °C |
| Compensated temperature range | -18…65 °C |
| Housing zero shift due to temperature change | 0.2 % F.S. / 10 °C |
| Sensitivity shift due to temperature change | SPX4222: 0.2 % F.S. / 10 °C | SPX4622: 0.4 % F.S. / 10 °C |
| Max. diaphragm operating temperature | 400 °C |
| Diaphragm zero shift due to temperature change | SPX4222: 0.2 bar / 10 °C | SPX4622: 0.3 bar / 10 °C |
| Measuring system | 4-arm strain gauge |
| Signal output in fault condition | Failure signal level according to NAMUR NE43: ≤3.6 mA or ≥21 mA |
| Range adjustment | Turn-down up to 3:1 for versions with option “B” HART™ protocol |
| Supply voltage without intrinsic safety | 14…36 VDC for SPX4XX2“N” models |
| Supply voltage with intrinsic safety | 16…26 VDC for SPX4XX2“S” models with intrinsic safety EEx ia IIC T4/T6 |
| Approval SPX4XX2 “S” | ATEX II 2 (1) G ATEX 100a, intrinsic safety EEx ia IIC T4/T6 |
| Zero adjustment range | -40 % to +10 % F.S.; -80 % to +20 % F.S. for pressure ranges up to 35 bar |
| Span adjustment range | ±2 % F.S. maximum |
| Zero and span adjustment | For all versions via “ZERO” and “SPAN” push buttons; for versions with option “B” HART™ protocol also selectable via HART™ commands or push buttons |
| Load resistance | 500 Ω at 26 VDC supply voltage; 1000 Ω at 36 VDC supply voltage |
| Process connection | 1/2″-20 UNF connection thread |
| Optional temperature measurement | Integrated, replaceable thermocouple or Pt100 element for simultaneous temperature measurement close to the pressure sensing diaphragm |
| Key features | ATEX option, HART™ communication, autozero and autocall, high noise immunity, variable range adjustment up to 3:1, suitable for field applications |
