Electronic pressure sensor with radio transmission
measuring range 0 ... 16 / 0 ... 250 / 0 ... 600 bar
Application
Electronic pressure sensors with radio transmission will be used to monitor hydraulic clamping fixtures, if
• hard wired connections are not possible or too expensive.
• the pressure has to be measured in hard-to-reach points or has to be adjusted frequently.
• the pressure has to be measured continuously in several places at the same time.
• the pressure has to be checked during start up and maintenance with minimum installation costs.
Up to 16 pressure sensors can be individually configured and monitored at a stationary receiver unit with antenna.
Description
The electronic pressure sensor (Pressure Switches F 9.733) operates according to the DMS principle. The measured values are sent in the ISM band to the stationary receiver unit. The range is max. 300 m in the free field. The replaceable lithium battery has a service life up to one year. The state of charge is constantly monitored.
The receiver unit can be configured with the keyboard and the two-line LCD-display. With the optionally available setup program on a PC or laptop that can be connected with a USB cable it is even more flexible.
A laptop with the loaded setup program can be directly connected to the pressure sensor by means of a mini-USB cable. Thus, a temporary pressure measurement is also possible without receiver unit, e.g. during start up and maintenance.
The receiver unit has four freely configurable analog outputs (optionally two relay outputs) and a RS485 interface with Modbus protocol.
Available as an accessory is a Profibus gateway that translates the Modbus protocol into a PROFIBUS protocol with GSD.
Important notes
The electronic pressure sensor is intended for industrial use, but is not suitable for safety-critical applications.
Metallic objects in the immediate vicinity of the transmitter or concrete ceilings and walls reduce the range. The minimum distance between two transmitters shall be 200 mm.
During installation and operation of the electronic pressure sensor, electrostatic charging must not arise. Electrical or magnetic fields, e.g. by transformers and two-way radios are to be avoided.
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Receiver unit with antenna
4 analogue outputs
voltage 20-30 VDC
as per data sheet F9.750
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Receiver unit with antenna
2 analogue/ 2 relay outputs
voltage 20-30 VDC
as per data sheet F9.750
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Lithium battery for pressure sensor
3.6 V - 8.5 Ah - Type Baby C
as per data sheet F9.750
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Antenna cable - length 3 m
as per data sheet F9.750
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Antenna cable - length 5 m
as per data sheet F9.750
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Antenna wall holder
as per data sheet F9.750
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Setup programm on USB stick
multilingual
as per data sheet F9.750
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USB/TTL converter
as per data sheet F9.750
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Profibus Gateway
Modbus in Profibus protocol
as per data sheet F9.750
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Application Electronic pressure sensor
with radio transmission F 9.750
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