1.2 Technical data
Differential pressure meter
Nominal range mbar 0
to
100
0
to
160
0
to
250
0
to
400
0
to
600
0
to
1000
1)
0
to
1600
1)
0
to
2500
1)
0
to
3600
1)
Adjustable span mbar
Class ± 1.0 % from
to
≤ 250
≥ 125
≤ 400
≥ 100
≤ 600
≥ 150
≤ 1000
≥ 250
≤ 1600
≥ 400
≤ 2500
≥ 500
≤ 3600
≥ 720
Class ± 1.6 % from
to
≤ 100
≥ 60
< 160
≥ 60
< 125
≥ 50
< 100
≥ 80
< 150
≥ 120
< 250
≥ 200
Class ± 2.5 % from
to
< 60
≥ 35
< 60
≥ 32
from
to
< 35
2)
≥ 20
Nominal pressure PN 40, overloadable on one side up to 40 bar (PN 50 also for oxygen on request)
Display LCD Ø 90 or LED Ø 3
Performance Output and indication linear to tank capacity
Deviation from terminal-ba-
sed linearity
< ±1.6 % or < ±2.5 % (including hysteresis depending on the span selected)
Sensitivity < 0.25 % or < 0.5 % depending on the span selected
Effect of
static pressure
ambient temperature
< 0.03 % / 1 bar
at –20 to 70 °C on zero and span: < ±0.25 %/10 K
Limit switches 2 software limit switches A1 and A2, configurable as minimum or maximum alarms
in accordance with NAMUR and EN 60947-5-6
Control circuit,
adjustable in 1% steps
Rating according to connected switching amplifier
acc. to NAMUR and EN 60947-5-6, e.g. KFA6- SR2- Ex2.W or KFA-SR2- Ex1.W
Hysteresis 1 % based on maximum tank capacity (MCN)
Range of inversion, approx. < 0.6 %
Weight without valve block
with valve block
Approx. 3 kg
Approx. 5 kg
1)
A class accuracy of 0.6 % can be expected for measuring ranges 1000, 1600, 2500 and 3600 mbar with spans
≤ 100 % to ≥ 50 % of the nominal range.
2)
The class accuracy of Class 2.5 may not be reached in cases where the span does not fall within this specified span.
Note: All pressures stated as gauge pressures. All errors and deviations stated in % of the adjusted span.
8
EB 9527-1 EN
Technical data