For two-point calibrations, it is recommended to use two standards that differ by a factor of 10. For three-point calibrations, high, medium, and low concentration standards should be used. In either case, the highest and lowest calibration solution concentrations should bracket the expected sample range. For example, if the expected concentrations of the samples are […]
General
Using Hyper Terminal to Connect to a Device
iChart software has a built-in terminal program designed to communicate with devices. However, any terminal program may be used communicate as well. 1. Open Hyper Terminal, often located in the Windows start menu under All Programs | Accessories | Communications | Hyper Terminal. 2. Enter a name for the connection and click OK. 3. In the […]
Adding Sensor That is Connected Directly to a Computer
Some sensors have the capability to connect directly to a computer without an iSIC data logger. To use these sensors, iChart has to be configured for a direct communication method using the Setup Device Wizard. 1. Open iChart with a current project, or create a new project by selecting File | New Project. 2. If the Setup Device […]
Reconfiguring a YSI Sonde With iChart
YSI sondes are compatible with NexSens iSIC data loggers and iChart software. iChart has a YSI Sonde Terminal designed specifically for sonde communication which can be used for device reconfiguration. For more information on YSI products, visit www.ysi.com. 1. Open iChart with or without a current project. 2. Connect the YSI sonde to the iSIC […]
Matching Previous Parameters when Replacing a YSI Sonde
When replacing a YSI sonde into a NexSens data logging system, it is critical that the parameter list (parameters and units) that the sonde will output exactly matches the parameter list for the sonde in iChart. Otherwise, the data shown in iChart will not correspond with the correct parameter. These steps will show how to replace […]
Checking Connectivity of a Long Cable
When the two ends of a cable are separated by a great distance, it may be necessary to test the cables connectivity. 1. Find a wire that is known to have connectivity. This can be another wire in the same cable or a separate wire that is the same distance. 2. Connect one end of the […]
Configuring a YSI Sonde in iChart
YSI 6-series sondes are automatically detected in the iChart Setup Device Wizard. Before adding a YSI sonde to a project file, the sonde must be configured with the desired list of parameters and units and have a unique SDI-12 address. Consult YSI documentation for more information on configuring a 6-series sonde. To add the sonde […]
Calibration Process for the Turner Cyclops-7 Sensor
It is important that the Turner Cyclops-7 sensor properly calibrated to ensure accurate readings. Calibrating the Turner Cyclops-7 Sensor for use with iChart is a simple process. 1. Ensure all data is uploaded to a computer from the iSIC. 2. Connect the sensor to the iSIC following directions specified in the SI manual. 3. Connect […]
Changing Sensor SDI-12 Addresses
A characteristic inherent to all SDI-12 devices is that each has an internal SDI-12 address. The SDI-12 address is used as a reference for issuing commands from a master device such as a NexSens iSIC or SDL500 data logger. Thus, each SDI-12 device that is connected must have a unique address. The address setting can […]