The STT-26 and SRP-N118 offer a reliable solution for measuring seawater temperatures down to 100 meters. Ideal for marine research and harbor monitoring, the marine-grade bronze sensor with a PT100 Class A RTD ensures accuracy and durability in harsh conditions. The sensor’s 4-20mA output transmits data to the SRP-N118 display, which features a clear readout, relay outputs for alarms, and Modbus communication for system integration. This combination provides a robust and easy-to-install system for critical underwater temperature monitoring.
- Deep Sea Measurement: Capable of measuring temperatures at depths down to 100 meters, making it suitable for a wide range of underwater applications.
- Durable Construction: The sensor housing is constructed from marine-grade bronze (CA104) for exceptional corrosion resistance in seawater.
- Fully Submersible: IP68 rated sensor for complete protection against water ingress.
- Clear Display: Bright red LED display on the SRP-N118 ensures easy visibility of temperature readings.
- Dual Relays: Configure relays to trigger alarms or control systems based on temperature thresholds.
- Modbus Communication: RS485 interface with Modbus RTU protocol for seamless integration with data acquisition systems.
The STT-26 submersible temperature sensor paired with the SRP-N118 wall-mounted display offers a robust and reliable solution for monitoring seawater temperatures at depths down to 100 meters. This combination is particularly well-suited for applications such as harbor and estuary monitoring, mariculture operations, and oceanographic research.
The STT-26 sensor is constructed from marine-grade bronze (CA104), chosen for its exceptional resistance to corrosion in seawater environments. This material ensures the longevity and accuracy of the sensor, even with prolonged exposure to the harsh conditions found in salt water. The sensor utilizes a PT100 Class A, 3-wire resistance temperature detector (RTD), known for its stability and accuracy. A key advantage of the STT-26 is its fully submersible design with an IP68 rating, enabling its deployment at significant depths without the need for additional protective housings. This simplifies installation and minimizes potential points of failure. The sensor’s output is a 4-20mA current signal, a standard in industrial instrumentation for its resilience to noise and signal degradation over long cable runs.
The SRP-N118 display provides a clear and accessible readout of the temperature data transmitted by the STT-26 sensor. Its bright red LED display is easily visible even in challenging lighting conditions. The display unit is housed in a durable ABS enclosure with an IP65 rating, making it suitable for wall mounting in a variety of environments. Beyond simple temperature monitoring, the SRP-N118 offers advanced features such as dual relay outputs. These relays can be configured to trigger alarms or activate control systems based on preset temperature thresholds. This functionality enables automated responses to temperature changes, which is crucial in applications like aquaculture, where maintaining specific temperature ranges is critical for fish health and growth. Additionally, the SRP-N118 incorporates an RS485 communication interface with Modbus RTU protocol, facilitating integration with SCADA systems or data loggers for comprehensive data acquisition and analysis.
This sensor and display combination offers a practical solution for marine researchers, harbor masters, and aquaculture operators seeking to accurately monitor and respond to temperature fluctuations in seawater environments. The system’s robust construction, ease of installation, and advanced features make it a valuable tool for a wide range of underwater temperature measurement applications.
STT-26 Submersible Seawater Temperature Transmitter
- Part Number: STT-26-MT-100-A-00
- Sensor Type: PT100, Class A, 3 wire
- Output: 4 – 20mA / 2-wire
- Temperature Range: 0 – 100°C
- Probe Diameter: 25mm
- Probe Length: 80mm
- Housing Material: CA104 Marine Bronze
- Electrical Connection: 100m TPE-U cable
- Special Options: None
- Approvals: None
- IP Rating: 68, fully submersible to 100m depth
SRP-N118 Wall Mounted Display
- Part No: SRP-N118-1821-1-3-001
- Number of Outputs: 2
- Type of Outputs: Relay
- Power Supply: 24V DC
- Options: No Options
- Display: Red LED 4 x 20mm High, -999 to +9999 + decimal point
- Transducer Power Supply: 24 V DC +/-15% max.100 mA
- Communications interface: RS 485, 8N1 and 8N2, 1200 bit/s – 115200 bit/s, Modbus RTU
- Operating Temperature: 0 – 50°C
- Case Style: Wall Mounted
- Case Dimension: 110 x 80 x 67mm (excluding cable glands)
- IP Rating: 65
- Case Material: ABS + Glass Fibre