The HPM87 monocrystalline silicon flange diaphragm pressure transmitter adopts advanced MEMS technology from Germany to produce monocrystalline silicon sensor chips and a globally unique monocrystalline silicon double beam suspension design, achieving internationally leading high accuracy and excellent stability with ultra-high overvoltage performance. Embedded professional signal processing module, achieving a perfect combination of static pressure and temperature compensation, providing extremely high measurement accuracy and long-term stability under large range of static pressure and temperature changes.Can accurately measure pressure values and convert them into output signals of (4-20) mA DC. This transmitter can be operated locally through three buttons, or remotely through a universal handheld device, configuration software, and a mobile app. It can display and configure without affecting the output signal.

◆ High accuracy and stability

Excellent environmental adaptability

Intelligent static pressure compensation and temperature compensation protect the transmitter from the effects of temperature, static pressure, and overpressure, minimizing the overall measurement error

◆ Flexible range compression

Excellent operability and ease of use ▪

Equipped with a 5-digit backlit LCD digital display ▪

多种显示功能 (mA、Pa、kPa、 MPa、bar、mbar、%、psi、mmH2O) ▪

Built in three button shortcut operation for on-site adjustment function ▪

Equipped with various corrosion-resistant materials ▪

Comprehensive self diagnostic function

When the tested medium has a corrosive effect on the transmitter connector and isolation diaphragm

When there are suspended solids in the tested medium or when the viscosity of the medium is high and prone to clogging

When the tested medium is easily crystallized or solidified when led out with a pressure tube

◆ When replacing the tested medium, it is necessary to rinse it to prevent mixing

◆ Hygiene conditions must be maintained to prevent pollution

◆ Tested fluids: liquid, gas, vapor

Measurement range:

Output signal: (4-20) mADC+HART protocol

◆ Allowable load resistance: 0-600 Ω (DC 24V)

Note: When communicating with a handheld communicator, a minimum load resistance of 250 Ω is required.

◆ Power supply:

Zero point migration: can migrate within the range of -20% to+20% of the maximum range

Output mode: Linear output square root output (can be remotely adjusted through configuration software)

◆ Environmental temperature: -40~85 ℃ (conventional type); -20-60 ℃ (explosion-proof type); -10-60 ℃ (filled with fluorine oil);

Storage temperature: -40~90 ℃

Accuracy:

*TD range ratio

Environmental temperature impact: total impact/28 ℃ (50 ° F)

Static pressure influence: ± 0.05% range/10MPa

Overvoltage impact: ± 0.05% range upper limit/10MPa

Stability: ± 0.05% range upper limit/12 months

◆ Material of the liquid receiving part: see the selection guide for details

◆ Transmitter housing: low copper aluminum die casting+polyurethane coating

◆ Transmitter housing cover: low copper aluminum die-casting+polyurethane coating

◆ Protection level: IP66

◆ Nameplate: SUS304

◆ Filling oil: silicone oil, fluorine oil (optional)

◆ Cable entry port: M20 × 1.5

1. Shell

2. Internal grounding terminal

3. External grounding terminal

4.4... 20mA test signal, between the positive signal end and the test end

5. Negative pole of power supply

6. Positive pole of power supply