The new Signet 2537 Paddlewheel Flowmeter Series is suitable for water and wastewater treatment, chemical processing, and pump protection. Output options include 4 to 20 mA, pulse divided, Signet S^{3L data link, and several other output configurations for control versatility. In addition to its six output versions, these blind flowmeters offer a variety of body and rotor pin materials. The flowmeter is available with either PP (polypropylene) or natural PVDF (polyvinylidene fluoride) body materials and installs into pipe sizes from 0.5 to 0.8 in. (DIN 15 to DIN 200). The unit can be ordered with digital S3L or 4 to 20 output, dry contact or solid state pulse divider, or dry contact or solid state flow switch. With the digital S3L option, the flowmeter can be connected to the manufacturer’s Signet 8900 Multi-Parameter Controller to expand the number of flow inputs from two to six. Connecting to the controller also allows engineers to use the device in the field with AC or DC operation as well as up to four analog outputs and up to eight relays. The 4 to 20 mA output model can be connected to chart recorders, PLCs, or any other device that requires a 4 to 20 mA signal. The Flow Switch version uses a relay to allow for high or low alarm operation requirements. The pulse model can be set for divider mode to accommodate low-frequency input devices, while the total mode can act as a traditional pump pulser. Performance characteristics include a dynamic flow range of 0.3 to 20 ft/sec (with repeatability of +0.5 percent of reading). All models feature a repeatable output of ۪.5 percent of maximum range at 25°C (77°F) and an input frequency range of 1 to 1,000 Hz. Linearity of ۫ percent reading ensures enhanced performance in harsh environments. Additional features include averaging and sensitivity settings that accommodate erratic flow rate deficiencies.}