The NOSHOK series 625 pressure transmitters combine the reliability and long life of diffused semiconductor and sputtered thin film strain gage sensors with safe electronics for outstanding performance and value. These transmitters were designed for applications that require pressure measurement in hazardous environments. All wetted parts are made of stainless steel (hastelloy C4 optional on front flush model), welded with no internal O-rings, gaskets or seals. Units undergo extensive testing during the manufacturing process to ensure that the highest performance is achieved in the demanding environments found in todays applications. The transmitters are available with standard threaded connections as well as flush diaphragm configurations and are factory mutual and Canadian standards association approved. Models incorporate significant levels of RFI, EMI and ESD protection. Ideal for hydraulic and pneumatic systems, pumps and compressors, test equipment and systems, HVAC systems, power generation, water and wastewater, refrigeration equipment, laboratory and test equipment, chemical/petrochemical, marine, pipeline gas compressors, oil field and offshore applications. Output signals: 4 mA to 20 mA, 2-wire. Accuracy: +/-0.25 percent full scale (BFSL). Hysteresis: less-than equal to +/-0.1 percent full scale. Repeatability: less-than equal to +/-0.05 percent full scale. Stability: less-than equal to +/-0.2 percent full scale for 1 year, non accumulating. Power supply: 10 Vdc to 30 Vdc unregulated, minimum voltage across transmitter connections is 10 Vdc. Load limitations: less-than equal to (VPower-10)/0.020 Amp. Response time: less than equal to 1 ms (between 10 percent and 90 percent full scale). Durability: greater-than 100,000,000 full scale cycles. Adjustment: +/-10 percent full scale for zero and span. Housing material: Environmental rating: 316 stainless steel. IP65 to IP67 depending upon electrical connection.