Temporary Direct Connection With an iSIC Data Logger

    All iSIC data loggers are equipped with a DB-9 serial connector for direct-to-PC communication through iChart software. There are times when it is convenient to connect directly to iChart. For example, while configuring, calibrating or updating the firmware of an iSIC. 1. Open iChart without a current project. 2. Use a DB-9 serial cable to […]

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    Recover an iSIC Stuck in the Boot Loader

    Every hour the iSIC will run self diagnostic. If during this process an error is identified the iSIC will remain in the boot loader. This can happen if the iSIC has not been used for 10 or more years, experienced a high surge (possibly due to nearby lightning or an Electrostatic Discharge), or had insufficient […]

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    SDI-12 Protocol

    Overview SDI-12 is a data communications protocol developed specifically for environmental monitoring applications. The motivation to develop SDI-12 began in the 1980s when a group of environmental monitoring specialists started to become frustrated with the complexity of interfacing analog sensors with the data loggers of the time. In addition, these low-power analog sensors were extremely […]

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    Electrical Grounding, Surge and Lightning Protection

    Overview Electrical grounding is a commonly misunderstood and improperly implemented component of environmental monitoring systems. Systems that do not use electrical grounding components can experience either complete system failures or intermittent problems that are hard to diagnose. However, just using grounding devices is not enough. Improper installation of electrical grounding components can render the components […]

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    Setting an iSIC or SDL500 as a Modbus or SDI-12 Device

    By default, NexSens iSIC and SDL500 data loggers are set in data logger mode. An iSIC or SDL500 logger set in data logger mode can be programmed by and interface with iChart software for data collection and acquisition. iChart can communicate with the logger through direct serial RS-232 connection or via telemetry (radio, cellular, satellite, […]

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    Batteries, Solar, and AC Power

    Two common questions that come up when deploying environmental monitoring systems are “How much power do I need?” and “What type of power do I need?”┬áThese questions arise because an under-designed power supply could result in data loss, and an over-designed power supply could add an enormous cost to the system and require a considerable […]

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    Primary and Secondary Cell Batteries

    Overview Typically, environmental monitoring systems are battery-operated. This is because they are usually in remote locations or need to record data when other forms of power are unavailable. The focus of this article is on battery systems, specifically alkaline batteries and other cell-type batteries. Required Battery Capacity The first step in determining an appropriate battery […]

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    Updating iSIC, CB-iSIC, or SDL500 Firmware

    NexSens iSIC firmware dictates how all functions and procedures are run in iSIC, CB-iSIC, and SDL500 data loggers. New firmware versions are released on a regular basis, so it is important to routinely check for updates. iChart software must be periodically updated in order for the most recent firmware version to be located. Click here […]

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    Troubleshooting Radio Connection

    If at some point a 4100-iSIC no longer responds to iChart software, there are a few steps to follow to troubleshoot the connection: 1. First, make sure the COM port selected in iChart is correct. 2. Next make sure the base station is powered and operational. For a 4100-base, make sure the RS232 cable is […]

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    iSIC Addressing

    Connect one end of the RS232 Interface Cable (supplied) to the PC’s serial port. Plug the other end of the cable into the DB9 connector located inside the iSIC. Apply power to the iSIC. If AC power will be used to power the system, connect the red and black battery leads inside the iSIC or […]

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