Pressure Measurement
Smart Pressure Transmitter
SPT200 (Differential / Absolute / Gauge )
SPT200 Series Smart Pressure Transmitter are microprocessor based with HART® (Highway Addressable Remote Transducer) protocol communication. Automatic temperature compensation significantly improve stability in pressure measurement.
SPT200 SERIES Smart Pressure transmitter includes gauge pressure, differential pressure and absolute pressure. They are widely use in petrol chemical, chemical, oil & gas, steel, power plant, water & waste water, manufacturing and other industries. With the unique sensor technology, combined with diaphragm material available in various options, the industrial transmitters are suitable for almost all industrial gases and liquids.
Features / Benefits
- High accuracy, up to 0.04% FS
- Ranges up to 400 bar
- Compact, rugged construction
- Conforms to the HART protocol
- Automatic diagnostic function
- Local zero and span adjustment
- 2-wire system
- EEPROM
- Rangeability up to 100:1
- ATEX Approval : Ex ia IIC T4 Ga/Gb (Pending)
Applications
Specifications
| Type | Differential Pressure Transmitter (SPT200-D/SPT200-A) | Gauge/ Absolute Pressure Transmitter (SPT200-G) |
| Range Ratio | 100:1 | |
| Accuracy | ±0.075% (Standard) / ±0.04% (Optional) | |
| Stability | ±0.1%×Span /3 years | |
| Power Supply Effects | ±0.001% /10V (12～36V DC) | |
| Zero and Span | • Local adjustment • HART Communicator • PC configuration software | |
| Measuring Range | 4 ~ 400mbar / 25 ~ 2500mbar / 0.3 ~ 30bar | up to 400 bar |
| Static Pressure Effects | ±(0.025%URL+0.05%Span)/ 10MPa | N/A |
| Overpressure Effects | ±0.05% × Span /10MPa | ±0.05% × Span |
| Mounting Position Effects | Rotation in diaphragm plane has no effect. Tilting up to 90° will cause zero shift up to 0.4 kPa (40 mmH2O) which can be corrected by the zero adjustment. | Rotation in diaphragm plane has no effect. Tilting up to 90° will cause zero shift up to 0.25 kPa which can be corrected by the zero adjustment. |
| Failure Mode Alarm | • Low Mode (min): 3.6 mA • High Mode (max): 21 mA • No Mode (hold): Keep the effective value before the fault. | |
| Output | • 4-20 mA ( 2 wire system) communication • Linear or Square Root programmable • HART Protocol | |
| Response Time | • 0.1 sec (amplifier damping constant) • 0.1-1.6 sec (sensor damping constant) | |
| Turn-on Time | < 15 seconds | |
| Ambient Temperature Limits | • -40°C to 85°C • -20°C to 65°C with LCD display | |
| Storage and Transportation Temperature Limits | • -50°C to 85°C • -25°C to 85°C with LCD display | |
| One-way Overload Pressure Limit | The maximum one-way overload pressure is maximum working pressure | |
| Approvals | ATEX : Ex d IIC T6 (Pending for Approval) ATEX : Ex ia IIC T4 (Pending for Approval) | |
| Power Supply | • 24VDC supply, R≤(Us-12V)/Imax kΩ, Imax=23 mA. • Max. voltage limit: 36VDC, Minimum voltage limit: 12VDC ; 15VDC (with LCD display） • 230Ω to 600Ω for digital communication | |
| Working Pressure Limits (Silicone oil) | 16MPa, 25MPa, 40MPa | From vacuum to upper range limits |
| Static Pressure Limits | 3.5kPa abs. to max. working pressure | N/A |
| Sensor Body | 316L Stainless Steel | N/A |
| Isolating Diaphragm | • Standard: 316L Stainless Steel • Optional: Hastelloy C | • Standard: 316L Stainless Steel • Optional: Hastelloy C |
| Cover Flange | 316 Stainless Steel | N/A |
| Nuts and Bolts | Stainless Steel | N/A |
| Process Connector | 316 Stainless Steel | |
| Liquid Fill | Silicone oil/Fluorinated oil | |
| Amplifier Housing | Aluminum with epoxy paint | |
| Degree of Protection | IP67 | |
| Name plate and tag | 304 Stainless Steel | |
| Cable Entry | M20 x 1.5 (wire cross-sections up to 2.5mm2) | |
| Process Connection Gasket | Perbunan (NBR) or Buna-N /Viton (FKM) /Teflon (PTFE) | N/A |
| Weight | 3.3 kg | 1.6 kg |
| Process Connection | Flange with fixing thread 7/16-20 UNF and 1/4-18 NPT female thread on both sides | Standard: ½” NPT female thread Others: ½” NPT male, G1/2 female, M20x1.5 female, ¼” NPT male |
