The Honeywell SmartLine ST700 Pressure Transmitters include absolute pressure, gauge pressure, flange mount and remote seal transmitters that meet industry requirements in performance, stability, reliability and rangeability.

HMA Instrumentation offers the following range of Pressure Transmitters:

SmartLine® ST700 Absolute Pressure Transmitters are targeted at applications requiring robust performance in vacuum applications. This includes low-pressure measurement in vacuum distillation columns.

The ST700 Absolute Pressure Transmitters are available in two variants – In-line and Dual Head – in the following ranges:

SmartLine®​ ST700 Differential Pressure Transmitters bring smart technology to a wide spectrum of measurement applications ranging from furnace combustion airflow rate to hydrostatic tank gauging.

ST700 Differential Pressure Transmitters are ideal for critical process loops and high-value applications such as custody transfer, and energy and material balances. Six models are available with the following ranges:

SmartLine® ​​ST700 Flange Mount Pressure Transmitters may be installed directly onto a tank flange and are offered with a variety of tank connections.

The ST700 Flange Mount Pressure Transmitters are ideal for critical applications such as natural gas custody transfer and energy and material balances, where accuracy and stability are of utmost importance. Four ranges are available:

Smartline ST700 Flush Mount Pressure Transmitter for direct insertion in processes with the use of a 1” sleeve, welded into the process line. It is primarily used for pressure measurement in the head box of pulp and paper plants.

The Flush Mount Pressure Transmitter, is available in ranges from 0-1 to 0-100 psig and can be installed in a variety of hazardous locations. The flush mounting capability eliminates the possibility of clogging while the insertion design makes the transmitter change out rapid and trouble-free.

The cost-effective transmitter provides:

• Reference accuracy = 0.065%
• 100 ms response time
• Stability = +/-0.025% per year

SmartLine®​ ​ST700 Gauge Pressure Transmitters are ideal for applications ranging from high-pressure measurements in boilers and fuel feeds to tank level measurement applications with a relatively high process temperature.

Dual Head Gauge Pressure Transmitters are suited for typical applications involving reaction vessels in the chemical industry and level applications with process temperatures up to 257°F /125°C.
In-Line transmitters are screwed directly onto a 1/2” male NPT nipple and can be installed in hazardous environments for accurate, repeatable pressure measurement. Typical applications include high-pressure measurement in boilers, fuel feeds and high-pressure reaction vessels in the petrochemical and hydrocarbon recovery industries.

The following models are available:

SmartLine® ST700 Remote Diaphragm Seal Transmitters provide accurate measurement in a wide variety of applications involving corrosive or high-temperature process fluids.

Honeywell offers the following ST700 Remote Diaphragm Seal Transmitters:

• Flush flange seals
• Flange seal with extended diaphragm
• Pancake seals
• Sanitary seals
• Chemical tee Taylor wedge
• Seals with threaded process connections
• Saddle seals
• Calibration rings
• Stainless steel armor and PVC-coated, stainless steel armor capillaries
• 2” Stainless steel nipples
• Welded meter body

Four models are available with the following range and span limits: