SP-003-4-Series

Supported Applications

The Omega Link SP-003 and SP-004 Series Modular Environmental Monitoring Smart Probes measure temperature, relative humidity, and barometric pressure. The series supports calculated parameters including Dewpoint, Heat Index, and Humidex on specific models (SP-003-2 and SP-004-2). Designed for integration with Omega Link Smart Interfaces and gateways, these probes facilitate wireless connectivity via the IF-006 Series interface and GW-001 or GW-002 series gateways. The system architecture supports data consolidation through the Omega Link Cloud.

Functioning as an edge controller, the SP-003/SP-004 provides autonomous independent decision-making capabilities with integrated alarm and control features. Key functional attributes include:

• 10,000+ sample data/event logging
• Secure authentication
• Software configurability via SYNC software
• 2x Digital I/O (Input or Output) for discrete control signals

Operating Conditions & Performance

The series operates within an ambient and process temperature range of -40 to 85°C (-40 to 185°F). Measurement ranges cover Temperature from -40 to 85°C, Relative Humidity from 0 to 100% RH (non-condensing), and Barometric Pressure from 10 to 1200 mbar. The electrical connection utilizes an M12 8-Pin Male Connector with a power supply requirement of 2.8 VDC - 3.3 VDC.

Performance specifications are defined as follows:

• Temperature Accuracy: ±0.3°C (±0.6°F) at 25°C
• Relative Humidity Accuracy: ±2.5% (0 to 80%) and ±3.5% (80 to 100%) non-condensing
• Barometric Pressure Accuracy: ±6 mbar from 300 to 1100 mbar; ±4 mbar from 700 to 1100 mbar at 25°C
• Dewpoint, Heat Index, and Humidex Accuracy: ±2°C (calculated)
• Hysteresis: ±0.8% for Relative Humidity
• Repeatability: ±0.15°C for Temperature; ±0.21% RH for Relative Humidity
• Response Time: Less than 1 second for Temperature; 8 seconds for Relative Humidity

The enclosure rating is IP67 when mated.

Voltage Thresholds and Output Limits

• Digital Inputs: V_highThreshold 2.2 VMAX; V_lowThreshold 0.3 VMIN; V_inMAX 30 VDC
• DIO Digital Outputs (Open Drain): 100 mA max, V_MAX 30 VDC

Configuration Options

The series offers configurable mechanical housings and measurement configurations to address specific installation needs. The modular M12 construction supports various accessories including T-Splitters, field install connectors with screw terminals, and dual M12-8 connector cables in 1m, 3m, and 5m lengths (straight or right angle).

Mechanical Housings

• Tube Housing: Stainless Steel construction. Dimensions: 72 mm L x 15.9 mm OD (2.83" x 0.62"). A 5" model is available.
• Bulkhead Housing: Aluminum construction. Dimensions: 73 mm L x 15.9 mm OD x 18.5 mm Panel Opening (2.83" x 0.62" x 0.72").

Model Configurations

The series includes the following documented configurations:

• SP-003-1 / SP-004-1: Temperature, Humidity, and Barometric Pressure (or Temperature/Humidity only for SP-004) with discrete I/O.
• SP-003-2 / SP-004-2: Includes Dewpoint, Humidex, and Heat Index readings in addition to standard parameters.

Ecosystem Compatibility

The probes are designed for use with Omega Link Smart Interfaces (IF-001 Wired USB, IF-002 Wired RS485/Modbus) and Wireless Sub GHz interfaces (IF-006). Gateways include the GW-001 Series (Wired/Wireless IIoT Gateway Standard or Pro) and GW-002 LTE IIoT Gateway Pro.

Key Product Differences

Variants within the SP-003/SP-004 series differ primarily by measurement capability set, housing type, and physical dimensions. The SP-003 family includes models with Barometric Pressure sensing (e.g., SP-003-1), whereas specific SP-004 variants focus on Temperature and Humidity without pressure or include calculated indices depending on the model suffix.

Physical variations distinguish between Tube Housings (Stainless Steel) and Bulkhead Housings (Aluminum). The 5" tube length is available as an option for specific models. All listed SKUs feature discrete I/O capabilities via the M12 connector, with pin assignments defined for Discrete I/O Signals (Pins 1 & 6), Interrupt Signal (Pin 2), I2C Clock/Data (Pins 3 & 4), Shield Ground (Pin 5), Power Ground (Pin 7), and Power Supply (Pin 8).

Agency approvals for the series include CE and UKCA.