SPECIFICATIONS VX1100Sensor InputVoltage InputsNumber8 differential / 16 single-endedRange±10V, ±5V, ±2.5V, ±250mV, ±25mVAccuracy0.01% of full scaleResolution16 bits  (65,536 parts)Counter InputsNumber2 counter/frequency measurement1 counter onlyMaximum Input Range±15 voltsResolution16 bitsMaximum Count Frequency100 KHzProgrammable Threshold1.0 and 3.2 volts w/hysteresis0 and 50 millivolts w/hysteresisQuadrature InputMaximum Count Frequency2 KHzSwitching Thresholds1.0 and 3.2 volts w/hysteresisResolution16 bitsSerial InputsSDI-12USGS standard smart sensor interfaceSensor Excitation+5.000 volts DC±0.1% over temperature+12 voltsSwitched raw battery, current limitedSystem MonitoringBattery±0.1 voltsInternal Temperature±0.5 degrees CelsiusGOES Forward PowerWattsGOES Fail-safe StatusOK / TrippedGOES Lock StatusOK / BadControl OutputsNumber4TypeMOSFET open-drain to groundUser InterfaceSerial I/ORS-232Fully menu driven ASCIIData download and system setupIntegral I/OKeypadAlphanumericDisplay2x24 Liquid Crystal  Display(LCD)MemoryData Logging58,000 data pointsBattery-backed SRAMSystem ProgramEPROM firmwareSetup ParametersNon-volatile EEPROMPower SupplyVoltageRange8 volts to 16 voltsCurrent ConsumptionStandby0.5 milliampsData Acquisition35 milliampsSerial I/O40 milliampsSatellite Option6 milliamps standbyTimekeepingReal Time ClockStandard VX1100±1 minute per monthVX1100 with GOES option1ppmPhysicalVX1100-1 (wall)12” x 6.5” x  3.75” (w x h x d)305mm x 165mm  x 95mmVX1100-2 (rack)13” x 3.0” x 2.25 (w x h x d)330mm x 76mm  x 57mmVX1100-2 Termination12” x 2” x 0.75” (l x w x h)305mm x 51mm x 19mmWeight3.0 lbs1.4 kgEnvironmentalTemperature-40ºC to +60ºCHumidity0 to 99 percent, non-condensingORDERING INFORMATIONModel #DescriptionModel #DescriptionVX1100-1Basic Data Acquisition Unit, Wall MountVX1040VBUS Communications Telephone/Expansion OptionVX1100-2Basic Data Acquisition Unit, Rail MountVX1045VBUS Voice Response ModuleVX1004NFiberglass Weatherproof Enclosure OptionVX1050VBUS FSK ALERT Radio Modem Option *VX1004PAGOES/GMS Satellite Transmitter  OptionVX1060VBUS PCMCIA Memory Expansion ModuleVX1010VBUS Analog Output Module Option *VX1080Aquatrak© Water Level Sensor Module OptionVX1020VBUS Relay Output Module Option *VX0850VBUS Packet Radio Modem OptionVX1030VBUS Digital I/O Module Option ** Consult factory for antenna, power system, and sensor options.  Aquatrak^® is a registered trademark of Bartex, Inc.(800) 897-6266  Telwww.advmnc.com(425) 489-0548  FaxSpecifications subject to change without notice.  rev6/00