Useful Calculations And Conversion Formulas; Specific Gravity Calculation; K-Factor Calculation - Nordson ProBlue Flex Product Manual

Adhesive Tracking System
D-6

Useful Calculations and Conversion Formulas

Part 1128350_02
These calculations and conversion formulas are provided for your reference
as needed.

Specific Gravity Calculation

The specific gravity (SG) of adhesive is the ratio of the adhesive density over
water density:
SG = ρ / ρ
a adhesive water
For the adhesive density (ρ
Safety Data Sheet (SDS) or Technical Data Sheet (TDS).
NOTE: Some adhesive manufacturers provide specific gravity on the SDS,
some provide it on the TDS, and some do not provide it all. If you cannot find
the specific gravity, contact the adhesive manufacturer. If you are unable to
obtain the specific gravity, you can use the default specific gravity value to
calibrate using the K-factor. Note, however, that if you eventually update the
specific gravity value, you will need to recalibrate the system.
For water density (ρ
water
Water density
[26.7 _C (80 _F) at sea level]
3
0.997 g/cm
997 g/L
0.997 kg/L
3
62.24 lb/ft
8.320 lb/US gal
Refer to the SDS/TDS to obtain the density of the adhesive in kg/L or lb/gal.
You can use the density to calculate the specific gravity.

K-Factor Calculation

Refer to Calibrate the Flow Meter under System Setup for an explanation of
how to use the K-Factor parameter to fine-tune the accuracy of flow meter
measurement results.
Old K-Factor times (*) the displayed Add-On/Product divided () by the
actual total add-on weight equals (=) the new K-Factor.
), refer to the adhesive manufacturer's
adhesive
), refer to the following table:
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