Description
The Series 0690 Low Pressure Transducer is a high-performance stainless steel pressure transmitter designed for accurate measurement of low pressure and vacuum conditions in demanding industrial environments. Utilizing a highly sensitive piezo-resistive sensing element housed within an oil-filled stainless steel body, the Series 0690 delivers exceptional accuracy, repeatability, and long-term stability.
Engineered for industrial automation, HVAC systems, pharmaceutical processing, marine applications, water treatment facilities, and modern data center cooling infrastructure, the Series 0690 provides reliable pressure monitoring even under high pressure ramp rates and challenging operating conditions.
Its robust AISI 316L stainless steel construction ensures excellent media compatibility, including seawater, purified water, process fluids, and pharmaceutical applications.
Features:
- 4-20 mA (2-wire) output signal
- Designed for low pressure and vacuum measurement
- Highly sensitive piezo-resistive sensing technology
- Excellent long-term stability and repeatability
- Stainless steel housing (1.4404 / AISI 316L)
- High resistance to pressure spikes and rapid pressure changes
- Overload protection up to 3x nominal pressure
- Burst pressure protection up to 10x nominal pressure
- Reverse polarity protection
- Standard and customized pressure ranges available
- Multiple sealing material options for broad media compatibility
- Optional oxygen-cleaned versions available
Technical Specifications
| Specification | Value |
|---|---|
| Product Series | 0690 |
| Product Type | Low Pressure Transducer |
| Output Signal | 4-20 mA (2-Wire) |
| Supply Voltage | 10-32 VDC |
| Sensor Technology | High-Sensitivity Piezo-Resistive Sensor |
| Housing Material | 1.4404 / AISI 316L Stainless Steel |
| Wetted Parts Material | AISI 316L Stainless Steel |
| Pressure Measurement | Low Pressure and Vacuum Applications |
| Overload Factor | Up to 3 × Pnom |
| Burst Pressure | Up to 10 × Pnom |
| Maximum Rise Rate | ≤ 14.5 psi/ms (≤ 1.0 bar/ms) |
| Pressure Ranges | Standard and Custom Ranges Available |
| Protection | Built-In Reverse Polarity Protection |
| Media Compatibility | Industrial Fluids, Seawater, Pharmaceutical Media, Water Treatment Applications |
| Special Versions | Oxygen-Cleaned Versions Available Upon Request |
| Long-Term Stability | Excellent Repeatability and Long-Term Performance |
| Pressure Spike Resistance | Designed for High Pressure Ramp Rates |
| Applications | Data Center Cooling, HVAC, Pharmaceutical, Marine, Water Treatment, Industrial Automation, Process Control |
Advantages
Superior Measurement Accuracy
The highly sensitive piezo-resistive sensor provides outstanding measurement accuracy, repeatability, and long-term stability for critical monitoring applications.
Excellent Media Compatibility
All wetted components are manufactured from AISI 316L stainless steel, providing excellent resistance to corrosion and compatibility with seawater, purified water, pharmaceutical fluids, and industrial process media.
Built for Demanding Environments
The rugged stainless steel construction withstands rapid pressure fluctuations, pressure spikes, and harsh operating conditions commonly found in industrial systems.
Applications
Data Center Cooling Systems
The Series 0690 is ideal for pressure monitoring in modern liquid cooling and thermal management systems used in hyperscale, colocation, enterprise, and edge data centers.
Typical applications include:
- Chilled water systems
- Direct-to-chip liquid cooling
- Rear door heat exchangers
- Coolant Distribution Units (CDUs)
- Immersion cooling systems
- Precision cooling equipment
- Pump monitoring
- Heat exchanger monitoring
- Filter condition monitoring
Pressure monitoring points include:
- Supply pressure
- Return pressure
- Pump discharge pressure
- Differential pressure measurement
- Heat exchanger pressure monitoring
- HVAC and Building Automation
HVAC and Building Automation
- Chilled water loops
- Hot water heating systems
- Variable speed pumping systems
- Air handling units (AHUs)
- Fan coil units
- District cooling systems
- Building Management Systems (BMS)
Pharmaceutical Industry
The corrosion-resistant 316L stainless steel construction makes the Series 0690 suitable for:
- Purified water systems
- Water for Injection (WFI) systems
- Clean-in-Place (CIP) systems
- Filtration systems
- Pharmaceutical manufacturing skids
Marine and Offshore Applications
Excellent seawater compatibility makes the Series 0690 ideal for:
- Seawater cooling systems
- Ballast water systems
- Shipboard HVAC systems
- Reverse osmosis systems
- Marine engine cooling circuits
Water Treatment and Desalination
- Reverse osmosis (RO) systems
- Water filtration skids
- Desalination plants
- Municipal water treatment systems
- Pump stations
- Process water systems
- Industrial Process Control
Industrial Process Control
Used throughout industrial automation and process control applications including:
- Hydraulic systems
- Pneumatic systems
- Vacuum systems
- Chemical processing
- OEM equipment
- Utility systems
