MSM-P400-010
HVAC pressure transmitter with 0-10V output, 0-400kPa range, IP65 enclosure, and G1/4 connection for building automation systems.
Product Overview
Description
The MSM-P400-010 is a pressure transmitter designed specifically for HVAC and building automation applications. The 0-10V voltage output is compatible with standard BMS (Building Management System) inputs.
With ±0.5% accuracy and IP65 enclosure, this transmitter provides reliable pressure measurement for air handling units, chilled water systems, and pneumatic controls. The voltage output simplifies wiring in building automation applications.
The compact design and G1/4 process connection enable easy installation in HVAC equipment. Factory calibration ensures accurate measurement out of the box, reducing commissioning time.
Product Series
MSM
Primary Application
Air handling unit pressure
Key Features
- 0-10V output for BMS integration
- ±0.5% accuracy for reliable measurement
- IP65 enclosure for HVAC environments
- Stainless steel construction for durability
- Three-wire connection with separate power
- Compact design for equipment integration
Specifications
| Pressure Range | 0-400kPa (Gauge) |
|---|---|
| Output Signal | 0-10V (3-wire) |
| Accuracy | ±0.5% FS |
| Supply Voltage | 12-30VDC |
| Enclosure Rating | IP65 |
| Process Connection | G1/4 Male |
| Wetted Materials | 316L Stainless Steel |
| Operating Temperature | -10°C to +60°C |
Applications
Air handling unit pressure
Electronic system design
Chilled water systems
Electronic system design
Pneumatic HVAC controls
Industrial automation and control
Building automation systems
Industrial automation and control
Fan static pressure
Electronic system design
Filter monitoring
Electronic system design
FAE Expert Insights
"The MSM-P400-010 is my standard recommendation for HVAC pressure measurement applications. The 0-10V output is the industry standard for building automation - it interfaces directly with most BMS controllers without any signal conversion. I've used these transmitters in countless air handling units, chilled water systems, and pneumatic control applications. The IP65 rating is perfect for HVAC mechanical rooms - protected against dust and occasional water spray. The ±0.5% accuracy is more than adequate for HVAC control where ±1-2% is typically acceptable. I particularly like the compact size which fits easily in equipment control panels. The three-wire connection (power+, power-, signal) is standard for voltage output transmitters. For installation, ensure the supply voltage is clean and stable for best accuracy. The G1/4 connection works with standard pneumatic fittings. Overall, this transmitter offers excellent value for HVAC applications."
Standard 0-10V output perfect for building automation and HVAC systems
— Michael Wang, BeiLuo
Frequently Asked Questions
What is the advantage of 0-10V vs 4-20mA for HVAC?
0-10V and 4-20mA each have advantages for HVAC applications: 0-10V advantages: 1) Direct compatibility with most BMS analog inputs; 2) Simpler troubleshooting with voltmeter; 3) No loop resistance calculations needed; 4) Common in building automation. 4-20mA advantages: 1) Better noise immunity for long cable runs; 2) Two-wire connection saves wiring cost; 3) Live zero (4mA) allows open-circuit detection; 4) Standard in industrial applications. For HVAC with typical cable runs under 100 feet, 0-10V works well and is more common in BMS. For longer runs or high-noise environments, 4-20mA is preferred.
Use 0-10V for standard HVAC/BMS applications. Select 4-20mA for long cable runs or industrial environments.
How do I wire the 0-10V transmitter to a BMS?
Wiring the MSM-P400-010 to a BMS controller: 1) Connect +24VDC supply to transmitter +V (red wire); 2) Connect supply common to transmitter -V (black wire); 3) Connect transmitter signal output (white wire) to BMS analog input +; 4) Connect BMS analog input - to supply common. The transmitter requires 3 wires: power+, power-, and signal. Use 18-22 AWG shielded cable for best noise immunity. The BMS analog input should have high impedance (>10k ohm) to avoid loading the transmitter. Most modern BMS controllers have 0-10V inputs with >100k ohm impedance. Verify input range configuration in BMS (0-10V = 0-400kPa).
Use 3-wire connection: power+, power-, signal. Verify BMS input impedance and range configuration.
Is IP65 sufficient for HVAC mechanical rooms?
Yes, IP65 is sufficient for most HVAC mechanical room applications: 1) IP65 is dust-tight and protected against water jets from any direction; 2) HVAC mechanical rooms are typically dry environments with occasional condensation; 3) IP65 handles cleaning and maintenance activities; 4) IP67 (immersion protection) is typically not needed unless flooding risk exists. For outdoor HVAC equipment or areas with washdown requirements, IP67 may be preferred. For clean, indoor environments, IP65 provides adequate protection at lower cost. The transmitter's electronics are protected from dust and moisture, ensuring long-term reliability in HVAC applications.
IP65 is sufficient for most HVAC applications. Use IP67 only for outdoor or washdown environments.
Can this transmitter measure air pressure?
Yes, the MSM-P400-010 can measure air and gas pressures in HVAC applications. The 0-400kPa range covers typical HVAC air pressures: 1) Duct static pressure: typically 0.5-2.5 kPa (2-10 inH2O); 2) Fan discharge pressure: typically 1-5 kPa; 3) Filter differential pressure: typically 0.1-1 kPa. For accurate air pressure measurement: 1) Mount transmitter at measurement point to avoid tubing errors; 2) Use appropriate pressure pickup in duct; 3) For differential pressure, connect high side to upstream, low side to downstream; 4) Ensure no condensation enters transmitter. The stainless steel construction is compatible with air and common HVAC gases. For very low air pressures (<1kPa), consider the MSM-P100-010 with 0-100kPa range for better resolution.
Suitable for HVAC air pressure measurement. Use low-pressure version (MSM-P100-010) for very low pressure applications.
What is the power consumption of the transmitter?
The MSM-P400-010 consumes approximately 15mA at 24VDC (360mW typical). Power consumption varies slightly with supply voltage: 1) At 12V: ~20mA (240mW); 2) At 24V: ~15mA (360mW); 3) At 30V: ~12mA (360mW). The power consumption is primarily for the internal signal conditioning electronics and voltage reference. This is typical for 0-10V pressure transmitters. For BMS applications, the power consumption is negligible compared to other equipment. The transmitter can be powered from standard 24VDC power supplies common in building automation. Ensure the power supply has adequate capacity for all connected devices.
Typical 360mW power consumption. Standard 24VDC BMS power supplies are adequate.