nomad HB3289-01 Users Handbooks
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9. POWER SUPPLIES9.1 Solar PowerThe Sensus Logger incorporates a solar power regulator as standard. This canoperate with nominal 12 V solar panels with outputs up to 30 W. with a shortcircuit current of no more than 2 A.The BP Solar Panel suppled with the Nomad system has an output of 5W. It should be wired to the “solar” connector identified in Figure 27.The pin assignments for the solar panel connector are as follows.Pin Assignment1 Solar panel negative terminal,2 Solar panel positive terminal.9.2 BatteryThe Sensus Logger incorporates a 12 V lead-acid battery charger as standard.This charger is designed to operate in conjunction with a nominal 12 V lead-acidbattery and supplies a maximum charge current of 0.5 A.The battery should be wired to the “batt” connector identified in Figure28.The pin assignments for the 12 V lead-acid battery connector are asfollows.Pin Assignment1 Battery negative terminal,2 Battery positive terminal.9.3 Direct Landline ConnectionPower for the Nomad unit can be supplied via a land-line interface (Part number142009C) which is suitable for distances up to 500 m. The connection is madevia a single cable (Part number W4/1602/4) that carries both 24 V DC power forthe Nomad and communication signals. (Please consult Casella CEL for furtherdetails or when greater distances are required.)Power SuppliesAN1 AN3 AN5 AN7 AN9 AN11 CNT1 CNT3 ALARMS0V0V0V0V0V0V0V0V0V-A1-A3-A5-A7-A9-A11C1C3AL1+A1+A3+A5+A7+A9+A11+V+VAL2I1I3I5+Vsw+Vsw+Vsw+Vsw+Vsw+VswCHARGER BATT0V0V+CHG+CHG+CHG+CHG0V0VAN2 AN4 AN6 AN8 AN10 AN12 CNT2 CNT4 AN.OUT0V0V0V0V0V0V0V0VVSS-A2-A4-A6-A8-A10-A12C2C4A1+A2+A4+A6+A8+A10+A12+V+VA2I2I4I6+Vsw+Vsw+Vsw+Vsw+Vsw+VswRS232 SOLAR0V-SPTXD+SP-BRXDCTSDTR-ARS48501072Solar Panel connectorBattery connectorFigure 27: Solar panel and battery connection (in the Sensus logger)Page 63 of 68NOMAD Portable Weather StationUsers Handbook |
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