SPT 200 Smart Pressure Transmitter

 

isolvSPT200 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 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.

Operating Principle

 

SPT200-D


spt200-r15rrThe differential pressure transmitter includes two
functional units:

  • Main unit
  • Auxiliary Unit

The main unit includes a sensor and process connection. The completely welded sensor module is a twin-chamber system with an integral overload diaphragm, an absolute pressure sensor, a temperature sensor and the silicon differential pressure sensor. The absolute pressure sensor, which is only exposed to the pressure at the high pressure side, acts as a reference value to compensate for the static pressure. The temperature sensor as a temperature compensated reference value to compensate for the temperature drift.

SPT200 -G


spt200-r15rr2The gauge pressure transmitter includes two functional units:

  • Main unit
  • Auxiliary Unit

The main unit includes gauge/temperature sensors and process connection. The low pressure span completely welded sensor module is a twin-chamber system with an integral overload diaphragm, and a silicon pressure sensor. The temperature sensor as a temperature compensated reference value to compensate for the temperature drift.

  • 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)
  • For Gas
  • Steam
  • Liquid
Type Differential Pressure Transmitter
(SPT200-D)
Gauge/ Absolute Pressure Transmitter
(SPT200-G/SPT200-A)
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 / Gold plated on 316L / FEP plated on 316L / Tantalum
• 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




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