HWPB6 pressure transmitter is an intelligent pressure measurement product with high precision and high stability. The product uses a high stability, high reliability diffused silicon pressure sensor and a high precision intelligent transmitter processing circuit, with a special algorithm to make the transmitter can achieve high precision measurement. The product can complete the pressure measurement and output on the RS485 interface. This product has a very low power consumption and automatically enters standby mode when not communicating to reduce power consumption, standby power can be reduced to 10uA. The HWPB6 series pressure transmitter is a high stability diffused silicon pressure transmitter with isolation and precision compensation. The temperature compensation and zero deviation correction of the pressure sensitive element are carried out through the precision modified thick film circuit. The measured pressure is transmitted to the diffused silicon sensor through the 316L isolation diaphragm and the internal medium to achieve accurate conversion of pressure to electrical signals.