Spot supply of Honeywell STA700 high-performance differential pressure transmitter
As a member of the Smartline product series, the Honeywell STA700 transmitter is a high-performance absolute pressure transmitter that uses sensors. The Honeywell STA700 absolute pressure transmitter combines absolute pressure with precise pressure and temperature compensation on the sensor chip, providing extremely high measurement stability over a wide range of precise pressures and temperatures. Smartline has been tested and meets Experion PKS standards, offering a high level of compatibility and integration capabilities. SmartLine products can easily meet the demanding requirements of pressure measurement applications.
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Pressure transmitter
Honeywell transmitter
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Detailed introduction
As a member of the Smartline product series, the Honeywell STA700 transmitter is a high-performance absolute pressure transmitter that uses sensors. The Honeywell STA700 absolute pressure transmitter combines absolute pressure with precise pressure and temperature compensation on the sensor chip, providing extremely high measurement stability over a wide range of precise pressures and temperatures. Smartline has been tested and meets Experion PKS standards, offering a high level of compatibility and integration capabilities. SmartLine products can easily meet the demanding requirements of pressure measurement applications.
The Honeywell SmartLine STD700 Differential Pressure Transmitter packs a serious punch when it comes to precision and reliability. Here are its standout features:
Accuracy: Standard accuracy up to 0.05% of span, with an optional upgrade to 0.04%.
Stability: Long-term stability of 0.02% of URL per year for 10 years—ideal for critical loops.
Rangeability: Impressive 100:1 turndown ratio for flexible application coverage.
Fast Response: Response times as quick as 100 ms for dynamic process changes.
Diagnostics: Comprehensive on-board diagnostics and modular design for easy maintenance.
Display: Optional alphanumeric LCD with configurable units and square root output indication.
Safety: Integral Dual Seal design and full compliance with SIL 2/3 safety standards.
Communication Protocols: Supports HART 7.0, Honeywell DE, and FOUNDATION Fieldbus.
Environmental Resilience: Automatic static pressure and temperature compensation for harsh conditions.
1. Product Specifications:
| Parameter | Specification |
|---|---|
| Model Range | STD720, STD725, STD730, STD735, STD770, STD775 |
| Measurement Type | Differential Pressure |
| Span Limits | Up to 3000 psi (207 bar) depending on model |
| Accuracy | ±0.05% of span (standard), ±0.04% (optional) |
| Stability | ±0.02% of URL per year for 10 years |
| Rangeability (Turndown) | Up to 100:1 |
| Response Time | As fast as 100 ms |
| Output Signal | 4–20 mA analog with digital communication |
| Communication Protocols | HART 7.0, Honeywell DE, FOUNDATION Fieldbus |
| Display | Optional LCD with configurable indication |
| Environmental Compensation | Automatic static pressure and temperature compensation |
| Safety Certifications | SIL 2/3, Dual Seal compliance (per ANSI/NFPA 70) |
| Ingress Protection | IP66/67 and NEMA Type 4X |
| Sensor Technology | Piezoresistive sensor with on-chip temperature compensation |
2. Product Features:
1. High accuracy of the calibration range, good stability, good measurement range, automatic temperature compensation, range ratio of 100:1, fast response time;
2. Easy to use and intuitive display functions, external zero point, range, and configuration functions, self-diagnosis function;
3. Based on ANSI/NFPA 70-202 and ANSI/ISA 12.27.0 integrated dual-seal design, standard configuration meets SIL2/3 requirements.
3. Selection Guide:
Frequently Asked Questions – Honeywell STD700
1. What is the STD700 used for?
It’s designed for differential pressure measurement in critical process loops, including flow, level, and pressure applications—especially where high accuracy and stability are essential.
2. What communication protocols does it support?
The STD700 supports HART 7.0, Honeywell DE, and FOUNDATION Fieldbus, making it compatible with a wide range of control systems.
3. What is the accuracy and stability of the transmitter?
Standard accuracy is ±0.05% of span, with an optional upgrade to ±0.04%. Long-term stability is ±0.02% of URL per year for 10 years.
4. Is it SIL certified?
Yes, it meets SIL 2/3 safety standards and includes a Dual Seal design for hazardous environments.
5. Can it be used in harsh environments?
Absolutely. It features IP66/67 and NEMA 4X ingress protection, and automatic compensation for static pressure and temperature.
6. What display options are available?
An optional LCD display provides configurable units, diagnostics, and square root output indication.
7. How fast is the response time?
It offers a response time as fast as 100 ms, ideal for dynamic process conditions.
8. What are the available model variants?
Models include STD720/725, STD730/735, and STD770/775, covering ranges from ±400 inH₂O to ±3000 psi.
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