Page 6Specifications 51350-18 specifications.fmSpecificationsSpecifications are subject to change without notice.Sensor input capability EightOperating humidity 5 to 95% non-condensingOperating temperature 0 to 40 °C (32 to 104 °F)Storage temperature -20 to 60 °C (-4 to 140 °F)Power requirements External power supply 12 VDC nominal ±25%(9 to 15 VDC range) with peak to peak ripple to be less than 10% of nominal.Enclosure NEMA 4X (indoor), IP 66Display visibility LCD backlit, visible at 10 feet with single reading; visible at 3 feet with multiplereadings.Clock Real timeMounting Wall, panel, or poleShipping weight AquaTrend ® Interface or AquaTrend with Signal Output Module (SOM):4 lb Portable AquaTrend Interface: 3 lbOutputs (AquaTrend with SOM only) Two current analog outputs; range either 4-20 mA or 0-20 mA (user selectable);both outputs isolated to 500 VDC; may be trimmed ±20% if needed (via AquaTrendInterface).Relays (AquaTrend with SOM only) SPDT 250 VAC, 5A resistiveCommunications Echelon ® fieldbus compatible; utilizes LonTalk ® protocol. Maximum of 400 metersbetween devices with a 500 meter maximum per segment; distances in excess of500 meters require a repeater. Up to 3 repeaters can be used for a total networklength of 2000 meters.Data logging capability 1 hour log (1 min. intervals), 30 day log (15 min. intervals)AquaTrend Interface and AquaTrend/SOMCapable of Master or Remote operation; the Master AquaTrend Interface is capableof communicating with 34 Hach devices including:8 sensors and/or analyzers8 Signal Output Modules (SOM)8 Digital Display Modules (DDM) or 8 Portable AquaTrend Interfaces8 Remote AquaTrend Interfaces2 Serial I/O Modules (SIO)Function Network configuration, system setup, sensor calibration, data loggingAccessories Network terminator provided on the Signal Output Module (SOM) board or theAquaTrend Interface. One required per network.