The SEN-96 is an economical pressure transmitter that uses a ceramic sensing element to convert applied pressure into a proportional electrical signal for air, industrial and technical gases, water, and oil. It is offered in accuracy classes of ≤ ±0.5% and ±0.75% of full scale, with a standard 4-20 mA, 2-wire output and optional voltage outputs, and it is designed to interface with most modern control systems. Measuring ranges cover vacuum, compound, and positive pressures through 0 to 6000 PSIG. As standard, the SEN-96 includes a DIN 43 650A electrical connector with a cable gland for quick installation, and its compact 316L stainless steel package is OEM-targeted for a range of sensing applications.
How the SEN-96 measures pressure
The SEN-96 is a ceramic pressure transmitter. Applied pressure acts on the ceramic (Al2O3) element, and the transmitter produces an electrical output that changes in proportion to the input pressure. This solid-state ceramic approach is designed for long cycle life with minimal calibration drift.
Pressure ranges and overpressure
Standard measuring ranges run from -30 inches Hg vacuum through 0 to 6000 PSIG, with compound ranges from -30 inHg/15 PSIG to -30 inHg/150 PSIG. Every range carries a defined overpressure limit, so the transmitter tolerates pressure above its nominal span within the rated limits.
- 0 to 100 PSIG range: overpressure limit 174 PSIG
- 0 to 1000 PSIG range: overpressure limit 1740 PSIG
- 0 to 6000 PSIG range: overpressure limit 8700 PSIG
Accuracy and response
Accuracy is ≤ ±0.5% of full scale on all ranges except the 0 to 15 PSIG range (code P025), which is ≤ ±0.75%. Linearity (BFSL) is ≤ ±0.25% of full scale, repeatability is ≤ 0.1% of full scale, and response time is under 4 ms.
Zero-point deviation is ≤ ±0.5% of span typical (≤ ±0.75% maximum), long-term drift is ≤ 0.1% of span, and thermal drift between 32°F and 176°F (0°C and 80°C) is 1% of span, 2.5% maximum.
Output signals and electrical connection
The standard output is 4-20 mA, 2-wire. Voltage outputs are available: 0 to 5 VDC, 0 to 10 VDC, 1 to 5 VDC, and 0.5 to 4.5 VDC ratiometric. Supply voltage is 8 to 30 VDC for most versions. All outputs are protected against short circuit and polarity reversal, with an insulation tension of 500 VDC.
The standard electrical connection is a DIN 43 650A connector with a cable gland. A DIN 43 650A connector with ½" NPT conduit is available as an option.
Process connections and construction
The standard process connection is ¼" NPT, with ½" NPT, G¼, and G½ available as options. The parts in contact with the medium are 316L stainless steel, a ceramic element, and an FKM gasket. The case is 316L stainless steel, vented up to 200 PSIG, and the transmitter weighs 0.27 lb (0.12 kg).
Ingress protection is IP 65 per IEC 529 / EN 60529 with a properly assembled electrical connection. Electromagnetic emission and immunity meet EN 61326 (Group 1, Class B, industrial applications).
Temperature range
Process media temperature is rated from -13°F to 212°F (-25°C to 100°C). Ambient temperature is -13°F to 185°F (-25°C to 85°C), and storage temperature is -22°F to 185°F (-30°C to 85°C).
Applications
The SEN-96 is designed for air, water, oil, and industrial and technical gases. Typical installations include gas distribution plants, bottles, refrigerators, compressors, vacuum pumps, hydraulics, and high-pressure water plants.
It is also suited to general industrial applications, gas stocking, machine production, light and heavy pneumatics, the refrigeration industry, and welding and vacuum applications.
Installation and maintenance
The SEN-96 is secured through the process-connection hexagon to a torque of 15 to 22 lb-ft (20 to 30 Nm). Cylindrical (G) threads use a head gasket compatible with the process medium, while conical (NPT) threads seal by screwing in, with a PTFE layer on the male thread recommended. The metal case should be connected to ground through the process-connection thread.
The SEN-96 transmitter is maintenance free.
Common Questions about SEN-96 - Economical Pressure Transmitter
The SEN-96 relies on a ceramic (Al2O3) sensing element. Applied pressure deflects the ceramic sensor, which the transmitter converts into a proportional electrical signal. Ceramic construction supports long service life and low long-term drift, rated at ≤ 0.1% of span, suiting it to continuous industrial duty.
The SEN-96 covers vacuum, compound, and positive pressures. Standard spans reach 0 to 6000 PSIG from -30 inches Hg, and compound versions run -30 inHg/15 PSIG to -30 inHg/150 PSIG. Available spans include 0 to 15, 0 to 100, and 0 to 1000 PSIG, with further ranges on request.
Most ranges are held to ≤ ±0.5% of full scale, while the 0 to 15 PSIG range is rated ≤ ±0.75%. Linearity stays within ≤ ±0.25% of full scale and repeatability within ≤ 0.1%. Zero offset stays within ≤ ±0.5% of span typical (≤ ±0.75% maximum), and the response time is below 4 ms.
Its standard signal is 4-20 mA over two wires. Voltage options include 0 to 10 VDC, 0 to 5 VDC, 0.5 to 4.5 VDC ratiometric, and 1 to 5 VDC. Most versions run on 8 to 30 VDC. Each output includes short-circuit and reverse-polarity protection.
The SEN-96 ships with a ¼" NPT process connection as standard. Optional threads include ½" NPT, G¼, and G½, following EN 837 or DIN 3852-E forms. For wiring, the SEN-96 uses a DIN 43 650A connector with cable gland, and a ½" NPT conduit version is optional.
The wetted materials are 316L stainless steel for the process connection and case, a ceramic (Al2O3) sensing element, and an FKM sensor gasket. The case is vented to 200 PSIG. This combination suits water, oil, air, and industrial or technical gases.
The SEN-96 handles process media from -13°F to 212°F (-25°C to 100°C). Ambient limits run -13°F to 185°F (-25°C to 85°C), and storage covers -22°F to 185°F (-30°C to 85°C).
Secure the SEN-96 by its process-connection hexagon at 15 to 22 lb-ft (20 to 30 Nm). For G (cylindrical) threads, fit a head gasket suited to the medium; for NPT (conical) threads, apply PTFE tape to the male thread before screwing in. Connect the case to ground through the connection thread. The unit needs no routine maintenance.
Order codes follow SEN-9601, output, measuring range, mechanical connection, option (example: SEN-9601 0 P085 G 0). Output 0 is 4-20 mA standard; codes 1 to 4 are voltage outputs. Option 0 is the standard DIN 43 650A connector, and C adds a ½" NPT conduit. Some range and connection codes carry a 20-piece minimum order.