G - Gain; W - Target White Value; D - Delta For Acceptance - Honeywell HF52X User Manual

G - Gain

Gain is used in Manual Style only (2P). Like a volume control, the gain modifier
boosts the signal and multiplies the pixel value. As you increase the gain, the noise
in an image is also amplified. Default = 6.
40G
64G
96G
Example:
Gain at 1G:

W - Target White Value

Sets the target for the median grayscale value in the captured image. For capturing
close-up images of high contrast documents, a lower setting, such as 75, is recom-
mended. Higher settings result in longer exposure times and brighter images, but
if the setting is too high, the image may be overexposed. Target White Value is only
available when using Photo Style (1P). (Default = 125)
nW
Example:
White Value at 75W:

D - Delta for Acceptance

This sets the allowable range for the white value setting (see
Value). Delta is only available when using Photo Style (1P). (Default = 25)
nD
154
Medium gain
Heavy gain (default)
Maximum gain
Gain at 4G:
Range: 0 - 255
White Value at 125W:
Range: 0 - 255
Gain at 8G:
White Value at 200W:
HF52X Fix Mount Barcode Scanner User Guide
W - Target White