
BF5 User Manual v 2.3
Getting Started
17
Logging
This menu enables you to log readings directly to the PC.
About
The about box contains the software version, copyright statements, and
contact information for Delta-T. There is also a text summary of Date &
Time, BF5 version and units information, which can be copied onto the
clipboard, to be used where required. This assists the user to keep an
audit record.
SunRead will also work with BF2 and BF3 Sunshine sensors
Preliminary Checks
Battery and Desiccant
Install the SunRead software on a PC, and connect the BF5 to the PC
RS232 serial port using BF5 serial cable type
SP-BF-RS01
.
The radiation measurements, units and battery voltage are displayed.
Ideally, this should read close to 3 Volts (3000mV).
If below 1.5 Volts then the batteries are nearly flat and should be
replaced. If the voltage is in between, use your judgement.
The battery voltage can also be measured with a voltmeter after
undoing the four retaining screws in the lid.
If the BF5 temperature is likely to exceed 50
C, you are advised to
replace the Alkaline batteries with 1.5V Lithium batteries. This is
because the capacity of Alkaline batteries is poor above 50
C.
WARNING: Do not use 3.6V AA Lithium batteries in the internal battery
holder. Only use 1.5 V AA batteries. Delta-T can supply these.
Check the indicator paper in the dome.
It should be blue. If pink, replace the internal bag of desiccant.
To renew the desiccant, see Page 35.
When you first use the BF5 in the field, check that it is reading in the
right engineering units, and that the values seem reasonable.
Check the Dome
The BF5 dome must be clear and unmarked for accurate measurements.
It can be cleaned with soapy water, using a soft clean cloth or paper
tissue.
Warning: The dome is acrylic plastic and may be damaged solvents