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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    Power Management – Switch Power

    Switch power is used in data logging applications where power must be conserved. There are two separate implementations of this concept within the iSIC data logger.  Sensor Switch Power Sensors plugged into SDL ports P1, T, and A or powered through pin 2 of an iSIC’s digital terminal strip are powered using switch power. This […]

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    SDL500 What’s Included

    Each SDL500 submersible data logger includes the following accessories and spares to get started and keep the unit operational: SDL500 USB interface cable (Only included with direct connect SDL500, not with telemetry-enabled models) USB driver CD* (8) D-Cell alkaline batteries Maintenance kit SDL Guard removal tool (3/16” handled Allen wrench) (2) Spare SDL port plugs […]

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    SDL500 Overview

    The SDL500 Submersible Data Logger is configured with five sensor ports for connection to industry-standard digital and analog interfaces, including RS-232, RS-485, SDI-12, 1-wire temp string, 0-2.5 V, pulse count, and more. Each sensor port offers a UW (underwater) type receptacle with double oring seal for a reliable waterproof connection. Unlike many data loggers, the […]

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    Direct Connection With an SDL500 via RS-485

    Direct connection with RS-485 can be established by using a UW-USB-485P cable to communicate with the SDL500C, SDL500R and SDL500I. To do this: 1. Plug the USB cable into a computer. If it is the first time the USB cable is plugged into the computer, drivers (software) will be needed – an internet connection is […]

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    Controlling an iSIC Using a Maintenance Switch

    The maintenance switch is a feature in iChart software that can be used for external control of an iSIC data logger. Once the feature has been enabled and a channel has been set, a simple switch controls if the iSIC logs data or not. 1. Open iChart without a current project. 2. From the menu […]

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    Verifying the Address of an iSIC or SDL500 Data Logger

    NexSens iSIC data loggers have a default address of 1. When connecting multiple iSICs to a single PC COM Port, unique addresses must be assigned to differentiate between them. This problem occurs most often when using a system of 4100-iSICs. 1. Open iChart without a current project. 2. From the menu bar select Advanced |iSIC | […]

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    Checking the Status of an iSIC DIO Signal

    The iSIC data logger’s DIO0 and DIO1 lines are programmable digital input/output signals. In revision 6, the signals are 5V logic and can tolerate up to 6V. In revision 7, the signals are 3.3V logic and can tolerate up to 35V indefinitely. The most common use of these lines is to use them to drive […]

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    Resetting an iSIC or SDL500 in iChart

    Many iSIC data logger commands can be executed remotely. However, this requires editing the .INI file, which can have hazardous effects if done incorrectly. Remote commands should only be used for very specific and deliberate purposes. 1. Open iChart without a current project. 2. From the menu bar select Edit | Preferences. 3. Switch to the GUI tab. […]

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    Confirming Connection Between an iSIC and a Computer

    NexSens iSIC data loggers can connect to iChart software directly, or through the following telemetry options: analog phone modem, cellular modem, spread spectrum radio, Ethernet, or Wi-Fi. When setting up a new system or testing new configurations it is essential to establish and confirm communication between the iSIC and the PC. 1. Open iChart without […]

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