5.1.1.4 Rainlogger

Using Firmware Version 2.000 or higher:

There is one channel of measurement for the Rainlogger. The ‘RainFall’ Channel records each tip time by the connected tipping-bucket and outputs the amount of rainfall per tip (input Rainfall Cal Constant).

• Identification describes the measurement parameter of the channel and has already been configured as 'RainFall'. The channel can be re-named to suit each project. The Identification field will be the channel heading, data column heading and graph line name when viewing the data. Identification is limited to 32 characters.

• Units refers to the channel’s unit of measurement. There are two units of measure available for the user to select: mm or in.

• The Rainfall Cal Constant field allows you to enter the calibration factor for the tipping-bucket you will be using. The calibration factor is the amount of rainfall depth (mm, in) per tip. The calibration factor should be indicated on a label on the tipping-bucket device or in the manufacturer's documentation. Input the calibration factor in mm or inches.

Using Firmware Versions Previous to 2.000:

There are two channels of measurement for the Rainlogger, ‘RainFall’ and ‘MaxRainFall’. The ‘RainFall’ Channel will provide the total rainfall within the sample interval. It does so by multiplying the number of tips within the interval by the tipping-bucket's calibration factor.

• Identification describes the measurement parameter of the channel and has already been configured as 'RainFall'. The channel can be re-named to suit each project. The Identification field will be the channel heading, data column heading and graph line name when viewing the data. Identification is limited to 32 characters.

• Units refers to the channel’s unit of measurement. There are two units of measure available for the user to select: mm or in.

• The Rainfall Cal Constant field allows you to enter the calibration factor for the tipping-bucket you will be using. The calibration factor is the amount of rainfall depth (mm, in) per tip. The calibration factor should be indicated on a label on the tipping-bucket device or in the manufacturer's documentation. Input the calibration factor in mm or inches.

In the ‘MaxRainFall’, the readings are of maximum 5 minute peak intensity within a minimum 15 minute sampling interval. This rainfall intensity value is derived by subdividing the sample interval into 5 minute sub-intervals and temporarily recording the number of tips in each 5 minute sub-interval. The Peak intensity reading is calculated by multiplying the number of tips in the 5 minute interval with the largest number of tips by 12 and presenting peak intensity/hr.

• Identification describes the measurement parameter of the channel and has already been configured as 'MaxRainFall'. The channel can be re-named to suit each project. The Identification field will be the channel heading, data column heading and graph line name when viewing the data. Identification is limited to 32 characters.

• Units refers to the channel’s unit of measurement. There are two units of measure available for the user to select: mm/hr or in/hr.