Pressure sensors
Pressure transmitters with casing (current output)
CAU-T series
Symbols and terms
1)
Storage temperature range Tst
A storage of the pressure sensor within the temperature range Tst,min up to Tst,max
and without applied pressure and supply voltage will not affect the performance of the pressure sensor.
2)
3)
Operating temperature range Ta
An operation of the pressure sensor within the temperature range Ta,min up to Ta,max
will not affect the performance of the pressure sensor.
Compensated temperature range Tc
While operating the pressure sensor within the temperature range Tc,min up to Tc,max
,
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.
4)
Rated pressure pr
Within the rated pressure range 0 up to pr (symmetrical output: –pr up to +pr) the signal output characteristic corresponds
to this specification.
5)
6)
Overpressure pOV
Pressure cycles within the pressure range 0 up to pov will not affect the performance of the pressure sensor.
Supply voltage VCC
VCC,max is the maximum permissible supply voltage, which can be applied without damages.
VCC,min is the minimum required supply voltage, which has to be applied for normal operation.
7)
8)
Working resistance RL
Depending on VS, the maximum working resistance is RL ≤ (VS – 10 V) / 0.02 A.
DC break down voltage Vis
The pressure sensor withstands a high voltage between the stainless steel casing and the electrical connection
I+ and I– (short circuited) without damage.
9)
Offset ICC0
The offset ICC0 is the signal output ICC(p = 0) at zero pressure.
10)
Signal span (Full Scale)
Simple output: IFS = FS = ICC(pr) – ICC0
Symmetrical output: IFS = FS = ICC(+pr) – ICC(–pr)
11)
Nonlinearity L (including pressure hysteresis)
The nonlinearity is the deviation of the real sensor characteristic Icc = f(p) from the ideal straight line.
It can be approximated by a polynomial of second order, with the maximum at px = pr / 2.
The equation to calculate the nonlinearity is:
Icc (px ) −Icc0 px
L =
−
Icc (pr ) −Icc0 pr
12)
13)
Response time t10-90
Delay between a pressure change (10 ... 90% pr) and the corresponding signal output change (10 ... 90% FS).
Supply voltage rejection SVR
While varying the supply voltage within the range VCC,min up to VCC,max at constant pressure and temperature,
the signal output change will not exceed SVRmax
.
14)
15)
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 TCICC0
Offset at temperature Tx: ICC0(Tx) = ICC0(25 °C) + IFS(25 °C) · (Tx – 25 °C) · TCICC0
Values are valid within the compensated temperature range Tc,min up to Tc,max
Out of the compensated temperature range, the deviation may increase.
16)
Temperature coefficient of span TCIFS
Span at temperature Tx: IFS(Tx) = IFS(25 °C) · [ 1 + (Tx – 25 °C) · TCIFS
]
Values are valid within the compensated temperature range Tc,min up to Tc,max
Out of the compensated temperature range, the deviation may increase.
AS SEN PD
2009-08-03
Please read Cautions and warnings and
Page 6 of 8
Important notes at the end of this document.
5秒后页面跳转
NTC热敏电阻与PTC热敏电阻的应用原理及应用范围
GTO与普通晶闸管相比为什么可以自关断？为什么普通晶闸管不能呢？从GTO原理、应用范围带你了解原因及推荐型号
LF353数据手册解读：特性、应用、封装、引脚说明、电气参数及替换型号推荐
A4950资料手册解读：特性、应用、封装、引脚功能、电气参数及代换型号
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
