The OMEGA® SPRTX and STCTX Series are high performance, low cost, industrial RTD (Resistive Temperature Device) and Thermocouple Connector-Transmitters™ . Both feature a encapsulated micro miniature signal conditioner built into a patented connector housing. The SPRTX signal conditioner converts the resistive change of a 100 Ω, 0.00385 RTD sensor or probe across a dedicated temperature range into an industry standard 2-wire, 4 to 20 mA analog output. The STCTX signal conditioner converts the non-linear millivolt output of a thermocouple sensor or ungrounded probe across a dedicated temperature range into an industry standard 2-wire, 4 to 20 mA analog output. This analog output can be sent hundreds of feet away from the location of your sensor (probe) to an indicating device, controller, PLC, computer, data logger or chart recorder.
SPECIFICATIONS Supply Voltage: 9 to 24 Vdc @ 30 mA max 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: ±0.0022 mA/ °C (±0.0012 mA/°F) Max Load: Rmax (Ω) = (Vsupply - 9 V)/0.02 A Max Input Lead Resistance: 50 V Transmitter Operating Temp: -40 to 85°C (-40 to 185°F) Output Connection: 2-wire, shielded cable [3 m (10') included] Approvals: CE marked Weight: 110 g (0.25 lb) max with cable
SPRTX Series for RTDs Range: SPRTX-M1, SPRTX-S1: -99 to 208°C (-146 to 406°F) SPRTX-M2, SPRTX-S2: 2 to 569°C (36 to 1056°F) Input: 3-wire, Pt100 (α = 0.00385) Open Sensor Wire Indication: Leg 1: Open = 27 mA Leg 2: Open = 2.2 mA Leg 3: Open = 2.2 mA Input Connection: SPRTX-M1, SPRTX-M2: 3-prong miniature connector (MTP-U-F) SPRTX-S1, SPRTX-S2: 3-prong standard-size connector (OTP-U-F) Dimensions: SPRTX-M1, SPRTX-M2: 24 H x 18 W x 79 mm L (0.96 x 0.70 x 3.12") SPRTX-S1, SPRTX-S2: 36 H x 18 W x 83 mm L (1.43 x 0.70 x 3.25")
STCTX Series for Thermocouples Range by Model: STCTX-J1, -K1, -T1: -18 to 121°C (0 to 250°F) STCTX-J2, -K2: -18 to 538°C (0 to 1000°F) STCTX-K3: -18 to 1093°C (0 to 2000°F) STCTX-T2: -18 to 399°C (0 to 750°F) Input: Thermocouple signal (ungrounded sensors only); Type J, K or T by model Open Sensor Indication: 22 to 27 mA Input Connection: Universal thermocouple connector (UST Series) Supply Voltage: 9 to 24 Vdc @ 30 mA Output: 4 to 20 mA (2-wire) Accuracy: ±0.5% of full scale millivolt input @ 23°C (73°F) plus the non-linearity of the thermocouple type (Note: The STCTX does not compensate for thermocouple non-linearity) Ambient Temp Effect: ±0.015 mA/°C Max Loop Load: V = (Vsupply - 9 V)/0.020 A Transmitter Operating Temp: -40 to 85°C (-40 to 185°F) Output Connection: 2-wire shielded cable [3 m (10') included] Response Time: 120 ms (0 to 63% FS)
† All dollar amounts on this site are shown in US currency. Note: Thermocouple models (STCTX) can only be used with ungrounded probes and sensors.
The STCTX/SPRTX Series is not for use in medical or nuclear applications, nor flammable nor explosive environments.
Each Assembly comes complete with connector, transmitter, and 10 ft. cable Ordering Example: (1) SPRTX-S2 RTD Standard Size Connector-Transmitter with High temperature range, $75.00