Honeywell STD725 Differential Pressure Transmitter
Output: HART 4-20 mA
Warranty Period: One Year
Package Size:22*18*23 CM
Certificate:CQ/Test Certificate
Model:STD725-E1AS4AS-1-A-AHS-11S-A-21A0-F1
Product Introduction
Honeywell STD725 Differential Pressure Transmitter provide highly accurate pressure measurement and transmission performance. Using digital signal processing technology and pressure sensor technology, it can accurately measure and transmit pressure data. With high precision and stability, it can measure pressure in the range of 1-100 Kpa. The STD725 transmitter has a fault diagnosis function, which can monitor the condition of the instrument in real time and provide an alarm. In addition, the STD725 transmitter adopts a passive power supply design, which can be directly powered by the field bus.

Function
1. It can convert the signal of thermocouple and thermistor into standard 4-20mA signal output.
2. Support multiple output signal linearization methods, such as average linearization, maximum and minimum switching linearization, angle linearization, etc.
3. Built-in a variety of output signal filtering algorithms, which can effectively reduce measurement errors.
4. Support a variety of diagnostic functions, such as disconnection, short circuit diagnosis, input analog detection, output analog detection, etc.
5. It can be configured and diagnosed through the HART protocol.
6. Built-in a variety of safety functions, such as fixed output, alarm output, etc.
Honeywell STD725 Differential Pressure Transmitter are designed with stainless steel anti-corrosion materials for long service life. It has good environmental adaptability and can work stably in harsh environments such as high temperature, low temperature, high pressure, and low pressure. The STD725 transmitter is small and easy to install and maintain. Its appearance is simple and elegant, using off-white plastic shell, full of modern feeling.
Span & Range Limits
Model | URL Kpa | LRL Kpa | Maximum range Kpa | Minimum range Kpa |
STD725 | 100 | -100 | 100 | 1 |
STD735 | 700 | -700 | 700 | 7 |
STD775 | 21000 | -700 | 21000 | 210 |

Materials Specifications
Barrier Diaphragms Material | 316L SS, Hastelloy® C-276 |
Process Head Material | 316 SS, Carbon Steel (Zinc-plated), Hastelloy® C-276 |
Vent/Drain Valves & Plugs | 316 SS, Hastelloy® C-276 |
Head Gaskets | Glass-filled PTFE standard. Viton® and graphite are optional. |
Meter Body Bolting | Carbon Steel (Zinc plated) standard. Options include 316 SS, NACE A286 SS bolts and Super Duplex. Super Duplex. |
Mounting Bracket | 2” Pipe, Carbon Steel (Zinc-plated), 304 Stainless Steel or 316 Stainless Steel |
Fill Fluid | Silicone 200 , CTFE |
Electronic Housing | Pure Polyester Powder Coated Low Copper (<0.4%)-Aluminum. Meets NEMA 4X, IP66, & IP67 IP67. All stainless steel housing is optional. |
Mounting | Can be mounted in virtually any position using the standard mounting bracket. Bracket is designed to mount on 2-inch (50 mm) vertical or horizontal pipe. |
Process Connections | 1/4- NPT or 1/2- NPT with adapter (meets DIN requirements) |
Wiring | Accepts up to 16 AWG (1.5 mm diameter). |
Honeywell STD725 Differential Pressure Transmitter are widely used in various industrial fields, mainly in petroleum, chemical, metallurgy, electric power and other fields. It can monitor the pressure data of the process environment and provide users with real-time and accurate pressure information. The transmitter intelligently predicts and maintains compressors, boilers and other equipment in the process control system, effectively improving the safety and reliability of process control. In the chemical production process, Honeywell STD725 transmitter can ensure the stability of the chemical reaction process, improve product quality and production efficiency.
Why choose to cooperate with our company?
-We guarantee that all the products provided are original and authentic, quality can be guaranteed.
-Our supply channel is stable, and the delivery time is guaranteed. Can offer competitive price, and make sure the quickly delivery time.
-We can promise you 1 year guarantee.
-We have a professional technical team, Will reply your inquiry within 8 hours.
-We have 6 years of experience in exporting instruments and meters, and have our own channels to export brand products, battery products and some sensitive goods.
-We specialize in Rosemount, Yokogawa, Honeywell, Siemens, ABB, Schneider, AB and Firsher products.
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