GT-526S Manual Rev F
Page 13
VOLUME: CF
TEMP: C
COUNT NORMAL
Figure 12
– Settings Screen
5.3.1. Volume
The GT-526S supports total counts (TC), particles per liter (/L), particles per cubic foot
(CF), and particles per cubic meter (M3). Particle count information updates while the
unit is sampling. Concentration values (/L, CF, M3) are time dependent so these values
may fluctuate early in the sample; however, after several seconds the measurement will
stabilize. Longer samples (e.g. 60 seconds) will improve concentration measurement
accuracy.
5.3.2. Temp
The GT-526S displays temperature in Celsius (C) or Fahrenheit (F).
5.3.3. Count Mode
The GT-526S can display counts in two different modes. These are Normal and
Differential.
Selection
Description
NORMAL
Displays cumulative counts on the screen and in reports.
DIFFERENCE
Displays differential counts on the screen and in reports.
The Normal mode displays cumulative counts. For a given size the counts represent all
particles that size and larger.
The Differential mode displays the number of particles between a given size and the
size larger. When in differential mode, the volume units will be preceded the delta
character
Δ
on the screen. For the serial output a lower case ‘d’ character is used.
█
58
0.3
µ
29,780 CF
0.5
µ
1,400 CF
1.0
µ
610 CF
Figure 13
– Cumulative Counts
█
58
0.3
µ
28,380
Δ
CF
0.5
µ
790
Δ
CF
1.0
µ
320
Δ
CF
Figure 14
– Differential Counts
