flangedDifferential pressure transmitterIt is a differential pressure transmitter connected to the measured object in the form of a flange, used to continuously measure parameters such as liquid level, interface, and specific gravity. It can continuously measure the flow rate of liquid, steam, and gas when combined with a throttling device, and convert the measured parameter values into a unified standard pressure signal.

Parameters of single flange plug-in pressure transmitter

Measurement object: liquid level of open or sealed containers

Range: 0-2-40kPa 0-12.5~200kPa 0-50~1000kPa 0-125~2500kPa

Output: 4mA~20mA DC

Power supply: 24V DC, transmitter can operate at 12V DC without load, up to 45V DC

Communication output: Power supply voltage: 16.4V-42V DC (16.4V-30VDC intrinsic safety type)

Communication distance: 2km, when using CEV cable

Load capacitance: below 0.22 μ F

Load inductance: below 3.3mH

Distance from power cord: 15cm or more

The input impedance of the receiving instrument connected to the receiving resistor is above 10k Ω at 2.4kHz

The scale scale of the indicator (on-site) is 45mm long, with an indication accuracy of 2.5 levels (pointer type) and an indication accuracy of 0.5 levels (digital type)

Installation of explosion-proof and intrinsic safety types in hazardous areas

Regardless of the output, after positive and negative migration, the upper and lower limits of the range must not exceed the limit of the range

Maximum positive migration: 500% of the minimum calibration range

Maximum negative transfer: 600% of the minimum calibration range

Temperature range: Amplifier operating temperature -25 ℃~90 ℃ Sensor operating temperature -40 ℃~104 ℃ -18 ℃~204 ℃ Fill with inert liquid

Relative humidity: 0-100% RH

Static pressure and overpressure limit 150Ib flange: 42kPa (absolute pressure)~1.9MPa (37 ℃) 300Ib flange: 42kPa (absolute pressure)~4.9MPa (37 ℃)

Sensor variation less than 0.16cm3

Damping: The time constant is continuously adjustable between 0.2 and 1.67 seconds

Start time: 2s, no preheating required

Accuracy: ± 0.25% of the calibration range, including comprehensive errors of linearity, variation, and repeatability

Stability: ± 0.5% of maximum range (twelve months)

Communication output: Communication distance: 1.2Km (when using CEV cable) 1. 4mA~20mA DC output+fieldbus HART

Protocol communication distance: 2Km (when using CEV cable) 2. 4mA~20mA Dc output

Vibration effect: In any axial direction, at a frequency of 200Hz, the error caused is ± 0.05%/V of the maximum range

Power supply impact: less than 0.005%/V of input range

Load effect: As long as the terminal voltage of the input transmitter is higher than 12V, there is no load effect

Installation position impact: The maximum zero point error that can be generated is 0.25kPa, but it can be calibrated without affecting the range and can be eliminated through calibration.

Structural material: Isolation diaphragm: 316 stainless steel Insertion part: 316L "O" ring (in contact with measuring medium): Fluororubber

Flanges and bolts: 316 stainless steel

Filling fluid: silicone oil or inert liquid

Electrical casing: low copper aluminum alloy

Electrical shell coating: polyurethane ethylene resin baking paint

Pressure connector: High pressure side 3 "or 4", 150Ib or 300Ib flange, low pressure side flange connection thread 1/4-NPT (cone pipe thread).

Joint connection thread 1/2-NPT (this item is an optional).

Electrical connection: conduit 1/2G or M20 × 1.5 threading hole

Weight: The transmitter body weighs 4.9Kg (excluding flanges). Other technical parameters are the same as those of the WIDEPLUS LT series

Flange size and bolt hole specifications