Edwards ELD500 Series

D135-10-880C - Operation
Page 45
Figure 18 Recorder output: P1 and P2 Legacy
Figure 19 Recorder output: Leak rate exponent
Figure 20 Recorder output: Leak rate mantissa
Figure 21 Recorder output: Leak rate logarithmic, default setting
LR exponent The exponent is recorded as step function: U = 1 to 10 V with
steps of 0.5V per decade, starting with 1 V = 1 x 10
-12
mbar l/s
(Figure 19).
LR linear There will be two decades, the lower decade with voltages
from 0.1 to 1.0V, the upper from 1.0 to 10.0 V output. The
scale is linear. The (Zoom recorder output (leak rate) upper
limit (= 10 V)) specified exponent determines the upper
decade.
LR log The fundamental output voltage is scaled logarithmic and can
be freely chosen. The voltage output ranges from 1 to 10 V
with adjustable steps of 0.5/1/2/2.5/5 to 10 V per decade
(Figure 21 shows the default setting)