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1.1 Technical data
Table 2
· Technical data
Differential pressure meter
Measuring 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 in mbar
Class ±1.0 %
from
to
≤
250
≥
125
≤
400
≥
100
≤
600
≥
150
≤
1000
≥
250
≤
1600
≥
320
≤
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
2)
<60
≥
32
Nominal pressure
PN 50, can be overloaded up to 50 bar on one side
Display
LCD Ø 90
Characteristic
Output and display either linear or root-extracting depending on operating mode
Deviation from
terminal-based conformity
< ±1.0 % or < ±2.5 % (including hysteresis) depending on selected span
Sensitivity
< 0.25 % or < ±0.5 % depending on selected span
Influence of static pressure
< 0.03 % / 1 bar
Influence of ambient tempera-
ture between –20 and +70 °C
< ±0.2 %/10 K on zero
< ±0.2 %/10 K on span
Limit switches
Two configurable software limit switches or one software limit switch complying with
EN 60947-5-6 and pulse output
3)
Control circuit,
adjustable in steps of 1 %
Values correspond to connected switching amplifier according to EN 60947-5-6,
e.g. KFA6- SR2- Ex2.W or KFA-SR2- Ex1.W
Switching accuracy
1 % relating to MCN or SCN
4)
Dead band, approx.
< 0.6 %
Pulse output
(Media 6 Z)
Max. possible count frequency 120 pulses/min or 7200 pulses/h
5)
floating transistor contact for connection of external counter
Input voltage U
DC
50 V
Input current I
DC
80 mA
Residual current I
off
at 24 V
< 0.1 mA
Voltage drop at 10 mA
< 3.5 V
Voltage drop at 80 mA
< 4.8 V
Pulse length T
on
200 ms
1)
Class accuracy of 0.6 % can be assumed in measuring ranges 1000, 1600, 2500 and 3600 mbar for spans of
≤
100 % to
≥
50 % of the nominal range
2)
If the values remain below this span, the class accuracy of Class 2.5 may be exceeded
3)
Media 6 Z is equipped with one software switch A1 according to EN 60947-5-6 and one pulse output
4)
MCN = Max. Capacity Nominal (max. tank capacity); SCN = Save Capacity Nominal (capacity up to overflow)
5)
Determined flow rate is as follows: Q =
Qm
Difference of countswithin reading period
Pulses h
/
×
ax
10
EB 9527-3 EN
Design and principle of operation
Содержание Media 6
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