1151 type pressure transmitter

1、 Working principle of 1151 pressure transmitter
The working principle of 1151 type pressure transmitter and absolute pressure transmitter is the same as that of differential pressure transmitter, except that the pressure in the low-pressure chamber is atmospheric pressure or vacuum. The structural diagram of the component is shown in the figure

2、 Main features of 1151 pressure transmitter
1. Complete variety, high precision, good stability, and cheaper price than similar imported instruments.
2. Adopting a two-line working mode.
3. The sensitive component adopts a solid structure, which is small, sturdy, and has strong anti vibration ability.
4. The main components can be interchanged with similar products of 1151.
5. Key components, electronic components, and connectors are all made of high-quality international products. This series of products has good reliability, stable quality, and low failure rate.
6. Positive migration can reach 500%, and negative migration can reach 600% (at minimum range).
7. Damping is adjustable.
3、 1151 pressure transmitter function
1. Target audience: liquids, gases, and vapors.
2. Output signal, 4~20mADC. (Special can be a four wire system with 0-1OmADC output)
3. Power supply: The power supply is 12-45VDC, and the LCD digital display is 15-45VDC. The general working power supply is 24VDC
4. Load: Related to the power supply. The relationship between load impedance R and power supply voltage V is R ≤ (V-12) Ω.
5. Range and winter position: externally continuously adjustable.
6. Positive and negative migration:
Differential pressure transmitter: The maximum positive displacement is the difference between the upper limit of the measurement range (same below URL) and the measurement range; The maximum negative transfer is URL.
Pressure transmitter: The maximum positive displacement is the maximum difference between the URL and the measurement range; The negative transfer amount is not greater than atmospheric pressure.
Absolute pressure transmitter: The maximum positive displacement is the difference between the URL and the measurement range; No negative transfer.
7. Environmental temperature range: General transmitter -26 ℃+70 ℃, with on-site display -15 ℃+70 ℃.
8. Overload pressure, not exceeding 1.5 times the specified pressure, the transmitter will not be damaged.
9. Storage temperature:- 10 ℃~+66 ℃.
10. Damping time: continuously adjustable, micro, low differential pressure and flange transmitter within 0.2-1.67 seconds, with a larger damping time.
11. The volume change is less than 0.16cm3.
12. Indicator: The on-site output indicator includes an ammeter with linear indication of 0-100% and square root indication of 0-100%, a 3-1/2 bit LDC LCD display, and a font height of 13mm. Output displayed as a percentage.
4、 Measurement range of 1151 pressure transmitter

Name and Model	Measurement range (kpa)	accuracy	notes
1151DP 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	Working pressure of 25MPa or 32MPa is optional
1151GP pressure (gauge pressure) transmitter	0~1.3~7.5 0~6890~41370	0.2 0.25
1151AP type 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	Choose between flat flange and plug-in flange
1151DP/GP with remote differential pressure/pressure transmitter	0~6.2~37.4 0～117～6890	0.5	Remote transmission device optional