Miniature Temperature Transmitter for Sanitary RTD Probes and Sensors
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- Attaches Directly to Most 3- or 4-Wire, Pt100, 0.00385 Curve Sensors with M12 Style Plug Connectors
- Two Input Sensor Wiring Options Available to Accommodate Most RTD Probes
- True 2-Wire Transmitter Operation, Loop Powered 4 to 20 mA Output
- Encapsulated Signal Conditioner with Water Tight Connector Housing
- High Performance, Repeatability, and Stability
- Factory Calibrated— No Field Adjustments Required
- Provides "Open Sensor Wire" Signal Indication and Compensates for Long Lead Wires
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Loop Powered! The OMEGA™ 2-wire SPRTX-SS Series temperature transmitters are high-performance, low-cost, industrial transmitters designed for direct connection to most CIP (clean-in-place) sanitary Pt100 probes and sensors that incorporate a M12 style connection. All models feature an encapsulated micro miniature signal conditioner built into a sealed connector housing. The signal conditioner converts the resistive change of a 100 Ω, 0.00385 RTD probe or sensor into an industry-standard 2-wire, 4 to 20 mA analog output across a dedicated temperature range.
M12 RTD SENSOR WIRING Wiring option #1 Wiring option #2
The SPRTX-SS transmitter is provided with two RTD wiring configurations as shown. The wiring style is identified at the end of the model number by either a '-1' or '-2'. If used with an Omega PR-21 sensor, then the '-1' or '-2' selection should match the final charecters following the '-M12' in the sensor model number (ie: PR-21A-3-100-A-1/4-0600-M12-1). When using the transmitter with an Omega PR-22 style RTD, then please select the -2 wiring configuration.
For use with a PR-21A-3-100-A-1/4-0600-M12-1, use an SPRTX-SS1-M12-1 Transmitter (Range is -99 to 208°C).
For use with a PR-22-3-100-A-M6-250-M12 sensor, use an SPRTX-SS1-M12-2 Transmitter (Range is -99 to 208°C).
Supply Voltage: 9 to 24 Vdc @ 30 mA max
Max Load: Rmax (Ω) = (Vsupply - 9V)/0.02 A
Max Input Lead Resistance: 50 Ω
Output: Linearized 4 to 20 mA
Accuracy: ±0.5% of FS @ 23°C (73°F) ambient
Repeatability: ±0.25°C (±0.5°F)
Temperature Effect: ±0.00022 mA/°C (±0.00012 mA/°F)
SPRTX-SS1: -99 to 208°C (-146 to 406°F)
SPRTX-SS2: 2 to 569°C (36 to 1056°F)
Input: 3-wire, Pt100 (α = 0.00385), 4-wire compatible
Probe/Sensor Input Connection (SPRTX-SS1-M12, SPRTX-SS2-M12): M12, 4-pin female, (connects to RTD probes having a 12M, 4-pin male connection)
Transmitter Operating Temp: -40 to 85°C (-40 to 185°F)
Output Connection: 2-wire, shielded, polyurethane cable [4 m (12') included]
Approvals: CE marked
Dimensions: 76 L x 20 mm D (3 x 0.8') without cable
Weight: 110 g (0.25 lb) max with cable