play technologies. NexSysLink reads and displays vehicle performance data directly from CAN-based protocols such as SAE J1939, NMEA 2000, SmartCraft or Indmar, and it supports a maximum of two analog sensor inputs. The system consists of a master node instrument and optional comple- mentary minor (slave) node instru- ments. This eliminates the need for a translation black box between the ve- hicle’s engine control module (ECM) and the instruments themselves, making wiring and installation simpler and faster, Beede said. The NexSysLink instruments employ remote-mounted switches for navigat- ing the LCD interface. The gauges are available in the nominal package sizes of 2, 3 and 5 in., but with re- duced depths designed to more easi- ly fit the NexSysLink instruments into shallow dash panel cavities. Beede’s second version of the DEF gauge is a stand-alone 2 in. gauge. It doesn’t require a master node instru- ment, and it connects directly to the J1939 bus network. A flashing amber LED is used to signify when only 12.5% DEF remains in the tank. A solid red LED indicates that only 2.5% remains. Other features of the DEF gauges include an environmentally sealed six-pin Deutsch connector. A backlit translucent multicolored dial, stepper motor technology, flat or domed lens and a lit pointer are also offered. Beede is based in Penacook, N.H., where it has 60,000 sq.ft. of manu- facturing space, along with design engineering and manufacturing engi- neering departments, and a quality testing laboratory. The company pro- duces a complete line of engine in- struments that are customizable for each application. dp
New DEF Gauges From Beede Control and instrument manu- facturer Beede Instruments has released two versions of a diesel exhaust fluid (DEF) gauge for the on- and off-highway markets. As the use of urea, commonly known as DEF, in 2010 and Tier 4 final engines becomes necessary for some en- gines to meet the tightening emis- sions regulations, measuring the DEF level in a urea tank is required on new vehicles and machines. The new gauge measures the DEF level based on SAE J1939 PGN 65110 (SPN1761) information for the selective catalytic reduction (SCR) Reagent Tank 1. Beede has made the gauge avail- able in two versions. One version is a 2 in. slave gauge that connects to Beede’s CAN-based NexSysLink sys- tem. It has a flashing red LED that illu- minates when 12.5% of the DEF re- mains in the tank. It becomes a solid red LED when only 2.5% urea re- mains in the DEF tank, warning the operator that refueling is necessary. The NexSysLink system is Beede’s next-generation instrumentation sys- tem, combining analog and digital dis-
One of two new diesel exhaust fluid (DEF) gauges from Beede Instruments. DEF gauges will become necessary as selective catalytic reduction (SCR) and the resulting addition of DEF is used in more vehicles and equipment to meet emissions regulations.
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