B58620H5820A035 EPCOS AG, B58620H5820A035 Datasheet - Page 6

• Manufacturer Part Number: B58620H5820A035
• Description: Pressure Sensors
• Manufacturer: EPCOS AG

Symbols and terms
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AS SEN PD
Please read Cautions and warnings and
Important notes at the end of this document.
Pressure sensors
Pressure transmitters with casing (current output)
Storage temperature range T
A storage of the pressure sensor within the temperature range T
and without applied pressure and supply voltage will not affect the performance of the pressure sensor.
Operating temperature range T
An operation of the pressure sensor within the temperature range T
will not affect the performance of the pressure sensor.
Compensated temperature range T
While operating the pressure sensor within the temperature range T
the deviation of the output signal from the values at 25 °C will not exceed the temperature coefficients.
Out of the compensated temperature range, the deviations may increase.
Rated pressure p
Within the rated pressure range 0 up to p
to this specification.
Overpressure p
Pressure cycles within the pressure range 0 up to p
Supply voltage V
V
V
Working resistance R
Depending on V
DC break down voltage V
The pressure sensor withstands a high voltage between the stainless steel casing and the electrical connection
I+ and I– (short circuited) without damage.
Offset I
The offset I
Signal span (Full Scale)
Simple output:
Symmetrical output:
Non-linearity L (including pressure hysteresis)
The non-linearity is the deviation of the real sensor characteristic I
It can be approximated by a polynomial of second order, with the maximum at p
The equation to calculate the non-linearity is:
Response time t
Delay between a pressure change (10 ... 90% p
Supply voltage rejection SVR
While varying the supply voltage within the range V
the signal output change will not exceed SVR
Temperature hysteresis
The temperature hysteresis is the change of offset, starting from the value at 25 °C after a temperature change
and return to 25 °C. Determined during temperature cycles in operating temperature range (cycles with 1 K/min).
Temperature coefficient of offset TCV
Offset at temperature T
Values are valid within the compensated temperature range T
Out of the compensated temperature range, the deviation may increase.
Temperature coefficient of span TCV
Span at temperature T
Values are valid within the compensated temperature range T
Out of the compensated temperature range, the deviation may increase.
CC,max
CC,min
is the minimum required supply voltage, which has to be applied for normal operation.
is the maximum permissible supply voltage, which can be applied without damages.
CC0
CC0
is the signal output I
S
OV
, the maximum working resistance is R
10-90
CC
r
x
L
I
I
x
: I
FS
FS
: I
FS
cc0
= FS = I
= FS = I
is
(T
(T
x
) = I
x
st
) = I
a
FS
CC
CC
CC
cc0
(25 °C) · [ 1 + (T
(p
(+p
(p = 0) at zero pressure.
c
(25 °C) + I
r
) – I
FS
r
) – I
A0
r
(symmetrical output: –p
CC0
CC
max
L
(–p
r
FS
=
) and the corresponding signal output change (10 ... 90% FS).
.
r
(25 °C) · (T
)
I
I
CC,min
cc
ov
cc
x
p (
Page 6 of 8
p (
will not affect the performance of the pressure sensor.
– 25 °C) · TCI
L
x
r
up to V
)
≤ (V
)
−
−
I
I
x
S
cc
c,min
c,min
cc
– 25 °C) · TCI
– 10 V) / 0.02 A.
0
0
CC,max
st,min
r
cc
−
up to T
up to T
up to +p
a,min
FS
c,min
= f(p) from the ideal straight line.
p
p
up to T
at constant pressure and temperature,
]
x
r
up to T
up to T
c,max
c,max
r
) the signal output characteristic corresponds
st,max
cc0
a,max
c,max
x
= p
,
r
/ 2.
CAU-T series
2009-04-06