| Security code： | huininggroupQ7CYbKHIvBUwFuX984 |
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| add time： | 2016-01-15 10:26:23 |
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Inconsistent, when the capacitance of capacitor equal to the pre Delta in 1151 pressure transmitter can be measured medium of two kinds of pressure into high and low pressure chamber, the role of components (i.e. sensitive element) on both sides of the diaphragm, the diaphragm and delta element within the filling liquid tension measuring wax slices on both sides, measuring diaphragm and on both sides of the insulation body of the electrodes to form a capacitor in no pressure or pressure measuring diaphragm in the middle position, both sides is equal to the amount on both sides of the pressure, thus the measuring diaphragm displacement, the displacement and the pressure difference is proportional to, so both sides of the capacitor is unequal, the detection, amplification and conversion into 4-2OmA second tier current signal.
Functional specification
2 measuring range, see the following table
Name type | measuring range（kpa） | accuracy | remarks |
1151DP type differential pressure transmitter | 0～1.3～7.5 0～1170～6890 | 0.2 0.25 | |
1151DR type micro differential pressure transmitter | 0～0.125～1.5 | 0.5 | |
1151HP type high static pressure differential pressure transmitter | 0～6.2～37.4 0~345~2068 | 0.2 0.25 | Work pressure 25MPa and 32MPa optional |
1151GP type pressure transmitter (gauge) | 0~1.3~7.5 0~6890~41370 | 0.2 0.25 | |
Type 1151AP absolute pressure transmitter | 0~6.8~37.4 0～117～6890 | 0.2 0.25 | |
1151LT flange type liquid level transmitter | 0~6.8~37.4 0～117～6890 | 0.2 0.25 | Flat flange and inserted flange |
1151DP/GP with remote differential pressure / pressure transmitter | 0~6.2~37.4 0～117～6890 | 0.5 | The remote device is optional |
3 output signal, 4~2OmADC. (special can be four wire 0 ~ 1OmADC output)
4 power supply: the power supply is 12~45VDC, with LCD digital display for 15~45VDC, the general working power supply is 24VDC
5 load: related to the power supply. In a negative supply voltage or load impedance R power supply voltage and capacity of V formula is R = (V-12).
6 range and winter position: external continuous adjustable.
7 positive and negative transfer
Differential pressure delivery device: the maximum positive migration amount is the upper limit of the measurement range (URL) and the difference between the measurement range and the maximum negative transfer is URL;
Pressure delivery device: maximum positive migration of URL and measurement range of the difference between the maximum; negative transfer is not greater than atmospheric pressure.
Absolute pressure transmitter: the maximum positive transfer amount is URL and the measurement range is poor.
8 ambient temperature range: the general transmitter -26 C +70 C, with the scene display -l5 C +7o C
9 overload pressure, no more than 1.5 times the specified pressure, the transmitter will not be damaged.
10 storage temperature: +66 C -lO C
11 damping time: in 0.2 ~ 1.67 seconds continuously adjustable, micro, low differential pressure and flange transmitter, damping time is larger
12 volume change, less than 0.16cm3
13 indicator: the field output indicator has a current meter, linear indication 0 ~ 100% and the root mean square of 0 ~ 100%, 3-1/2 bit LDC liquid crystal display, word high 13mm. The output is not significant.
14 start time: 2 seconds, no need to preheat
15 explosion: our factory produces two kinds of explosion proof class transmitter, by the national instrument explosion-proof safety supervision and inspection station (NEPSI) - Shanghai Industrial Automation Instrument Research Institute of identification: a explosion-proof type: B intrinsically safe type.
