The inability to communicate to an iSIC data logger can be caused by a variety of reasons: problems on the computer, problems on the iSIC, or problems with communication between the two. Before troubleshooting any iSIC communication problem, it is best to turn Auto interrogation off in iChart. Do this by selecting Project | Pause […]
Before a PC can begin to receive real-time data from the iSIC, a RS-232 Direct Connect Cable must be connected into the iSIC enclosure. Important: Always remove power from all NexSens communications devices when wiring to the iSIC. NexSens supplies a variety of permanent RS-232 Direct Connect Cable lengths ranging from 25 ft to 250 […]
The NexSens iSIC supports direct connect communication between a remote monitoring site and a computer base station. It is the most desirable system for a monitoring site that is under 250ft away from the monitoring station, and where a cable can easily run between the two, or if the data logger will run ‘stand alone’ […]
NexSens iSIC data loggers incorporate a precision real-time clock. However, the clock can drift up to two minutes per month and regional time changes require the clock to be synchronized periodically. This can be done manually or automatically. Confirm that the computer clock is correct Open iChart with a current project iChart must be opened […]
The 12V DC (direct current) batteries used on NexSens iSIC data loggers can be charged in two ways: online or offline. It will be necessary to decide which is most appropriate for the desired application. The necessary charger type can then be determined. Online Charging: If it is essential for the iSIC to always remain powered, […]
The LED only flashes when the iSIC is booting up and does not stay on all the time in order to conserve battery power. The LED will flash immediately upon connecting the battery but only for 15-20 seconds. REV: 13G29
If iChart ever reads data input by a sensor as “INVALID,” it will be necessary to verify if the sensor is reading incorrectly. The problem may be elsewhere and completing these steps may rule out sensor failure and save on costly repairs. 1. Make sure the sensor is connected to the data logger. 2. Open […]
NexSens iSIC and SDL500 data loggers can communicate using interfaces such as SDI-12, Modbus RS-485 and RS-232. This process shows how to switch from SDI-12 or Modbus to RS-485 communication in order to allow connection to a PC. 1a. Open iChart without a current project. 2a. From the main menu select Advanced | Terminal… 3a. Select […]
It may be necessary to perform a code update while in the boot loader if the normal code update is failing. 1. Open iChart. 2. Connect the data logger to the computer. 3. Select Advanced | Terminal from the menu. 4. Select Direct connect as the Connection type. Select the PC COM Port to which the data logger is […]
It may be necessary to remove the PCB (Printed Circuit Board) from the mounting plate for inspection or replacement. 1. Remove all attached wires from the back of the PCB. Note that the specific wires will vary depending on the communication available. Note: Record all wire locations before removal if replacing the board. 2. […]
