04563506
JUMO 537914 Programmierbarer Kopfmessumformer

The head tranmitter with wireless measurement transmission is used in connection with a Wtrans receiver for stationary or mobile recording of temperatures with RTD temperature probe or thermocouples. Alternatively, resistances up to 10 kO, voltages up to 50 mV and with external shunt currents up to 20 mA can be measured. Customer specific lineralizations are possible. The measured values are transmitted wirelessly to the receiver of the Wtrans measurement system. The measured values are displayed on the receiver and are available in digital form on the RS485 interface and as analog outputs. Two relay outputs can be used to signal various alarms optionally. The head tranmitter, intended for industrial use, is made out of a transmitter with integrated transmitter unit and an antenna-battery housing. The transmitter is designed for mounting terminal head in form B and operates with the ambient temperature range of -30 to 85°C. Installation in customer specific terminal heads is possible. The antenna-battery housing is connected to the terminal head by a screw connection (M20x1,5). The transmission frequency of the Wtrans measuring system is 868,4 MHz. This frequency is largely insensitive to external interferences ans allows transmission even in harsh industrial environments. If the antenna wall holder with the 3 m long antenna cable is used on the receiver side, the range in the free field is 300 m. A 3.6 V, 2.2 Ah lithium battery (size AA) is used for the power supply of the head transmitter. A setup program is available as an accessory for easy configuration and parameterization of the head transmitter and Wtrans receiver on the PC. Optionally, the online chart function can be used to record measured values on the PC.