Diagnostic Testing and Troubleshooting
FlukeDAQ Software
6
6-47
The frequency counter calibration constant is simply the Gain constant calculation where
the lowTarget and lowMeas are both assumed to be zero.
FrequencyConstant = targetFreq / measFreq
To retrieve the calibration constants, set up the device in the manual calibration
configuration described in “Manual Calibration Procedure“ in Chapter 5. Then retrieve
the desired calibration constant with the CAL_CONST? xx,yy command, where xx
denotes the module number and yy the calibration constant number shown in Table 6-13.
Each constant reflects the correction applied to the uncompensated measurement result as
an offset or as a gain multiplier. For example, CAL_CONST? 1,8 might return
+998.939E-3 indicating the uncompensated value for the 3 V dc range is multiplied by
0.998939 to achieve specification.
FlukeDAQ Software
Device software consists of the following components: main firmware, main FPGA
firmware, and graphical user interface. These programs can be updated as required. If you
would like to know if the software for your device is the most current, check the Fluke
web pages under support, software downloads, and then data acquisition. At the time of
this printing, the versions of code are as follows: main embedded code - 01_00.vxWorks,
FPGA code - fpga_rev71.rbf, GUI - FlukeDAQ2_02.exe (a self extracting Windows
application).
Main Firmware This is a closed-case procedure and it is not necessary to open the
device to load the Main Firmware. The Main Firmware is identical for both model
devices.
Main FPGA Firmware This is a closed-case procedure and it is not necessary to open
the device to load the FPGA Firmware. The FPGA Firmware is identical for both models
of the device.
Graphical User Interface (GUI) This is a self extracting Windows application and is
identical for both models.
Module Firmware For completeness, the embedded code in the modules are not a
closed-case procedure. It is necessary to open the module to load the Firmware. The
module Firmware is different for each module. At this time there are no plans to provide
the module firmware online and upgrade is only possible through the Fluke Service
Centers.
Firmware is stored in the device in electrically erasable and programmable memory
devices. You may contact the factory directly: Fluke Data Acquisition Sales Support,
(425) 446-5493 or FAX, (425) 446-5992.
To determine which versions of the Main and A/D firmware are on your device, see
“Diagnostic Tool idS” earlier in this chapter.
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