SDL500 Connecting Sensors

    The SDL500 supports many standard sensor interfaces and protocols through its UW connector ports, including 1-wire temp string, RS-232, RS-485, SDI-12, pulse count, and both analog and digital input/output devices. NexSens manufactures cables for these common interfaces and can also connectorize user-supplied sensor cables. The sensor bulkhead incorporates ports T, P1, P0, A and D. […]

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    SDL500 Setting up Communication

    iChart Software is used to communicate with the SDL500. Follow the Setup Device Wizard or Installing and registering iChart to install the software. To set up communication, follow the appropriate telemetry steps to establish a connection between the data logger and computer. Direct Connect To establish a direct communication with a computer, first connect the […]

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    Update Firmware With RS-485 Cable

    In order to update a SDL’s firmware using a UW-USB-485P communicaiton cable, the communication protocol must be changed to RS-485. 1. Establish temporary RS-485 communicaiton with the device by following the steps in the Direct connection with an SDL500 via RS-485 article. 2. From the menu bar select Edit | Preferences. 3. Switch to the GUI tab. 4. Check the “Enable […]

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    Changing the Address of an iSIC or SDL500 Data Logger

    The address of an iSIC or SDL500 data logger can be changed using iChart software. 1. Open iChart with a current project if not already open 2. From the menu select Advanced | iSIC | iSIC 3. Select the correct PC COM port, Connection type and iSIC Address If the address is unknown and the connection […]

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    SDL500 Getting Started

    Powering the SDL500 The SDL500 can be powered internally with (8) D-Cell batteries or externally with NexSens SP5 5-watt solar power packs or a user-supplied 12 VDC source. For MB-100 data buoy applications, internal batteries must be used to power the SDL500. For MB-300 or larger data buoy applications, SP5 solar power packs are typically […]

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    SDL500 Specifications

    General Compatible Sensors 4-20 mA sensors, 0-2.5 V sensors, SDI-12 sensors, RS-232 sensors, RS-485 sensors, Modbus RTU sensors, NMEA 0183 sensors, 1-Wire temperature sensors, Thermistor sensors, Tipping bucket rain gauges Analog Inputs/Outputs 0-2.5 V auto range, 12-bit resolution Pulse Counter Maximum rate: 12 Hz Internal Memory Size 2 MB Flash memory, over 500,000 data points […]

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    SDL500 Common Accessories

    Part Number Description Details 1001 iChart Software Program which simplifies and automates many of the tasks associated with acquiring, processing, analyzing and publishing environmental data. UW-CON UW Cable connectorization Factory installed connector for user-supplied sensor cables. Pluggable to the SDL500. UW-FL UW Plug connector to flying lead cable Used for wiring the SDL500 to other […]

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    Powering an SDL Through Its Top Bulkhead

    When many sensors are used in a project, it may become necessary to power a submersible data logger through its top bulkhead. This action will require a UW-plug-to-flying-lead cable.   1. Connect the UW plug to the top bulkhead.   2. The power will run through pin 6 of the bulkhead, which corresponds to the […]

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    Remove SDL500 Housing

    If advanced diagnostics or repairs are to be performed on an SDL500 submersible data logger, the outer housing must be removed. 1. Remove the (4) 3/16″ hex screws from the main SDL500 body on the end with 5 ports (bottom bulkhead).   2. Pull the bottom bulkhead off of the main body carefully. Note: Since the SDL500 is air-tight […]

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    Millivolt (mV) Readings on an Analog Sensor

    Analog sensors require a millivolt (mV) reading in order to determine an accurate output. To find these readings, follow the process below. 1. Open iChart without a project file. 2. Select Advanced|iSIC|iSIC from the menu bar. 3. Select the appropriate communication under PC Settings. 4. Type the address of the data logger and click Connect.   5. Click the Analog tab. […]

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