GE 1200HR belongs to the high-temperature enhanced series of Panametrics standard ultrasonic probe products. The suffix HR stands for High Resistance to high temperature working environment, breaking the temperature usage limit of ordinary MTS series clamp-on transducers, and solving the measurement difficulties of circulating hot water, high-temperature heat medium and hot process fluid in industrial production lines. This transducer is a core sensing component of the clamp-on ultrasonic flow measurement system, responsible for transmitting ultrasonic signals into the pipeline wall and receiving reflected echo signals to complete the basic data acquisition required for flow calculation by the host transmitter.

The internal piezoelectric crystal chip adopts high-temperature stabilized piezoelectric material specially screened and processed. It will not produce performance attenuation, frequency drift or piezoelectric failure under long-term continuous high-temperature radiation of the outer wall of the pipeline. The built-in damping layer uses high-temperature resistant composite glue to fix the wafer, ensuring stable vibration response of the wafer during long-term temperature rise and fall cycles, and avoiding measurement fluctuation caused by internal structural thermal deformation. The internal impedance is precisely calibrated to match the high-frequency circuit of GE original flow transmitters, which greatly reduces signal attenuation in the transmission process.

The probe shell and outer contact wearing plate are made of high-temperature alloy and special high-temperature resistant engineering plastic respectively. The overall allowable pipeline surface temperature reaches up to 200°C, which can adapt to long-term contact measurement of hot water pipelines in thermal power plants, heating pipe networks, chemical heat exchange medium pipelines and textile printing and dyeing hot medium pipelines. The coupling surface is equipped with a wear-resistant protective layer, which can resist the friction of installation fixtures and the aging of high-temperature coupling agent for a long time.

The internal signal wire is wrapped with multi-layer copper braided shielding mesh and high-temperature FEP insulating layer. It effectively shields electromagnetic interference from surrounding frequency converters, high-power motors and power distribution cables in industrial sites, prevents waveform clutter and flow value jumping caused by external noise, and maintains stable echo waveform output in complex electromagnetic environments. The integrated sealed structure between the probe body and the outgoing cable adopts high-temperature resistant sealing filler to prevent high-temperature heat conduction from damaging the internal circuit and avoid moisture infiltration leading to poor contact.

Compatible with GE original installation fixtures such as P1392 and PRE series clamps, it can be firmly locked on the outer wall of metal, carbon steel, stainless steel and plastic high-temperature pipelines without cutting pipes or stopping production during installation and later maintenance. There is no pressure loss in the pipeline during operation, no contact pollution to the process medium, and it is very suitable for closed high-temperature process systems with strict medium purity requirements. Each 1200HR transducer passes ultrasonic echo test, high-temperature aging test and insulation detection before leaving the factory, with unified frequency and sensitivity parameters of each batch.

Daily maintenance work is extremely simple, only regular inspection of probe appearance, sheath integrity and coupling surface state is needed. No regular calibration replacement is required under normal working conditions, effectively reducing the overall operation and maintenance cost of the high-temperature flow monitoring system. It is widely matched with DigitalFlow XMT868 series transmitters to build high-reliability flow metering solutions for central heating systems, factory high-temperature circulating water, chemical heat recovery pipelines and food high-temperature process water delivery pipelines.