Product Overview
The SUP RTX2500-D is a smart differential pressure transmitter designed for accurate and reliable pressure measurement in process industry applications. As part of the RTX2000 series, it combines high-performance pressure sensing, intelligent electronics and digital communication in a robust transmitter platform.
A wide selection of differential pressure ranges allows the RTX2500-D to cover applications from low differential pressure measurement to higher-pressure process conditions. Depending on the selected range, the transmitter supports a range ratio of up to 100:1, while selected ranges provide accuracy up to ±0.04% FS.
The transmitter uses a two-wire 4–20 mA transmission system with HART® communication. HART 7 enables configuration, zero and span adjustment, damping configuration, output simulation, alarm current configuration, write protection and process parameter review through compatible HART devices or host systems.
Technical Specifications
| Item |
Specification |
| Product |
Smart Differential Pressure Transmitter |
| Model |
SUP RTX2500-D |
| Pressure type |
Differential pressure |
| B0 range |
-2 to +2 kPa; minimum span 0.1 kPa |
| D0 range |
-2 to +2 kPa; minimum span 0.1 kPa |
| D1 range |
-10 to +10 kPa; minimum span 0.5 kPa |
| D3 range |
-100 to +100 kPa; minimum span 1 kPa |
| D5 range |
-500 kPa to +1 MPa; minimum span 10 kPa |
| D6 range |
-500 kPa to +5 MPa; minimum span 50 kPa |
| D7 range |
-500 kPa to +14 MPa; minimum span 140 kPa |
| Accuracy |
Up to ±0.04% FS; range and turndown dependent |
| Range ratio |
Up to 100:1 |
| Long-term stability |
±0.1% URL / 10 years |
| Response time |
≤100 ms to 63% in fast response mode |
| Measuring media |
Gas, liquid or steam |
| Output |
Two-wire 4–20 mA DC + HART® digital signal |
| Communication |
HART® 7 |
| Power supply |
10.5–45 VDC |
| Intrinsically safe supply |
≤28 VDC |
| Alarm current |
Low: 3.6 mA; High: 22.8 mA |
| Compensation temperature |
-40 to +80 °C |
| Ambient temperature |
-40 to +85 °C |
| Hazardous-area ambient temperature |
-40 to +60 °C |
| Process temperature |
-40 to +120 °C |
| Process connection |
1/4-18 NPT female |
| Chamber thread |
7/16-20 UNF female |
| Electrical connection |
M20 × 1.5 female or 1/2-14 NPT female |
| Process connection material |
316L stainless steel / Hastelloy C276 |
| Isolation diaphragm |
316L stainless steel / Hastelloy C276 |
| O-ring |
NBR / FKM |
| Enclosure protection |
IP65 / |
Applications
The SUP RTX2500-D is designed for differential pressure measurement in industrial process systems handling gas, liquid and steam. Its wide configurable range, two-wire 4–20 mA output, HART 7 communication and hazardous-area options make it suitable for process monitoring and control applications where accurate, stable and digitally configurable differential pressure measurement is required.
Liquid differential pressure measurement
Gas differential pressure measurement
Steam process measurement
Industrial process monitoring and control
HART-enabled DCS and asset management systems
Hazardous-area process installations with the appropriate certified configuration
Frequently Asked Questions
What is the SUP RTX2500-D?
The RTX2500-D is a smart differential pressure transmitter in the SUP RTX2000 series, designed for differential pressure measurement in industrial process applications.
What differential pressure ranges are available?
Available ranges include -2 to +2 kPa, -10 to +10 kPa, -100 to +100 kPa, -500 kPa to 1 MPa, -500 kPa to 5 MPa and -500 kPa to 14 MPa, depending on the selected range code.
What is the accuracy of the RTX2500-D?
Selected ranges provide accuracy up to ±0.04% FS. Actual accuracy depends on the selected pressure range and range ratio.
Does the RTX2500-D support HART?
Yes. The transmitter provides HART® digital communication and supports HART 7.
What output signal does the RTX2500-D provide?
It uses a two-wire 4–20 mA DC output with HART® digital communication superimposed on the analog signal.
What media can the transmitter measure?
The transmitter is designed for pressure measurement of gas, liquid and steam.
What is the process temperature range?
The specified process medium temperature range is -40 to +120 °C.
Can the RTX2500-D be used with valve manifolds?
Yes. The quick start manual provides both three-valve and five-valve manifold installation arrangements for the RTX2500-D.
Does the transmitter provide self-diagnostics?
Yes. The intelligent self-diagnostic function provides diagnostic warnings and diagnostic alarms for conditions such as sensor faults, abnormal temperature, pressure overrange and internal data or electronics faults.
