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 […]
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 […]
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 […]
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, […]
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 […]
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 […]
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 […]
NexSens offers four solutions for communicating to 4100-iSIC systems: 4100-base, 4200 radio to phone telemetry, 3200 radio to cellular telemetry and 5200 radio to Ethernet telemetry. The 4100-base system works like the image below. The 4100-base radio is connected directly to a computer via a RS-232 cable. This radio then communicates to all the 4100-iSIC […]
The temperature and dissolved expansion connector allows for the addition of multiple temperature and dissolved oxygen sensors to a system. See the diagrams below for exact signal pins. Dissolved Oxygen Sensors The dissolved oxygen expansion connector allows for four dissolved oxygen sensors to be added to a system. Connect the positive signal wire to the […]
The digital expansion connector allows for the addition of multiple RS232, and generic digital I/O sensors, as well as a main communication port. See the diagrams below for exact signal pins: RS232 The digital expansion connector allows for two additional RS232 sensors. These ports operate the same as those located on the digital terminal strip. […]
