Pressure Transmitter 981

Product catalog summary

Application
The Pressure Transmitter 981 is designed for monitoring overpressure and negative pressure in both liquid and gaseous media, including aggressive substances. It measures pressure relative to atmospheric pressure.

Permissible Environmental Conditions
- Storage and operating temperature: -20°C to +85°C
- Media temperature: 0 to 85°C
- Humidity: Max. 95% rH, non-condensing

Membrane Material
Available materials include NBR, Silicone, FKM, and EPDM.

Pressure Range and Specifications
- Pressure ranges are specified in the order matrix.
- Maximum operating pressure and linearity depend on the selected pressure range.
- Response time is 500 ms.

Electrical Specifications
- Supply Voltage: 10-30 VDC (2-wire), 18-30 VDC (3-wire)
- Supply Current: ≤ 21 mA (2-wire), ≤ 50 mA (3-wire)
- Output Signal: 4-20 mA (2-wire), 0-10 VDC (3-wire)
- Load: Max. 500 Ω at 24 VDC (2-wire), Min. 1 kΩ (3-wire)
- Electrical Connection: M12 socket, 4 poles, A-coded
- Protection Class: IP65 according to EN 60529

Conformity and Accuracy
- Complies with RoHS and EMC Directives.
- Accuracy according to EN 60770 at a reference temperature of 23°C.

Mounting and Weight
- Can be mounted in any position.
- Weight is approximately 100 grams.

Order Matrix
The order matrix provides options for pressure range, membrane material, pressure connection, output signal, display, and electrical connection.

Accessories
Includes mounting brackets and connecting cables with specific article numbers for easy ordering.

Catalog excerpts

Pressure Transmitter 981for measuring low pressures of different media Application Pressure transmitter for monitoring overpressure and negative pressure, for liquid and gaseous, as well as aggressive media. The pressure measurement is relative to the atmospheric pressure. Permissible Environmental Conditions Storage and operating temperature -20°C to +85°C Media temperature 0 to 85°C Humidity max. 95% rH., non-condensing Membrane Material NBR, Silicone, FKM, EPDM Pressure Range Please see order matrix Other pressure ranges upon request Maximum Operating Pressure Depending on the pressure range, please see order matrix Linearity Depending on the pressure range, please see order matrix Response Time 500 ms Electrical Connection M12 socket, 4 poles, A-coded Protection Class IP65 according to EN 60529 Conformity RoHS Directive, EMC Directive Accuracy Specifications According to EN 60770, reference temperature: 23 °C Mounting Position Mounting in any position

Open the catalog to page 1

Type Pressure range Max. positive Max. negative Accuracy FS working pressure working pressure Order Matrix Pressure range +/- 100 mbar Pressure connection PA6 Hose nipple PVDF Thread PVDF Thread Brass Thread Brass Thread Brass (nickel plated) Thread Brass Thread Brass Thread Brass Thread EPDM Silicone FKM/FPM 5.0 mm 6.0 mm 6.5 mm 10 mm G 1/8 M10x1 6.5 mm 10 mm G 1/8 M10x1 G 1/2 G 1/4 G 1/4 G 1/8 G 3/8 M10x1 M10x1 G 1/8 G 1/4 Output signal 4 ... 20 mA, 2-wire, linear Electr. connection M12 plug, 4 poles, A-Coded PA = polyamide, PVDF = polyvinyl difluoride, PPS = polyphenylene sulfide, brass =...

Open the catalog to page 2

Mounting brackets 6403 981_data_english 7101-4 Technical data subject to change without prior notice. Copyright© 2022 Beck Sensortechnik GmbH 981 with threaded connection Pin assignment Analog output signal M12 plug, 4 poles, A-Coded Accessories Article No Mounting bracket L-shape for pressure connection G1/4 6403 Mounting bracket L-shape for pressure connection G1/8 and M10x1 6404 Mounting bracket L-shape for pressure connections with hose connection 6405 Clamping spring for mounting with hose connections 6333 Connecting cable 2 meters with M12 socket, straight, 4 poles, open end 9976

Open the catalog to page 3

Pressure Transmitter 981

Pressure Transmitter 981

Catalog excerpts

All Beck Sensortechnik GmbH catalogs and technical brochures