Loop-powered RTD Input In-Head Programmable Transmitter - Discontinued

TX33

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Multi-Ranges Selectable
Temperature Linearized
Low Temperature Drift
Easy Calibration
Competitive Pricing

Description

The TX33 model has been discontinued. Please see the TX92G Series as a possible alternative or contact our Temperature Engineering Department.

The TX33 is an analog, nonisolated, 2-wire head-mounted temperature transmitter that converts the RTD input into a proportional, linear, and highly accurate 4 to 20 mA output current in a variety applications such as process control, automation system, and energy source management. The TX33 performes by means of a 6 dip-switch array for the coarse range setting, and two multi-turn potentiometers (Zero and Span) which are used for the final finetuning. The TX33 is housed in a metal enclosure with plastic top cover, fitting into DIN B connection heads providing excellent RFI immunity. The TX33 accepts low level signal from RTD, filtered, amplified, and converter to process current to reduce susceptibility transients and noise operations and allow the same two wires to carry the transmitter power and output current signal simultaneously.

SPECIFICATIONS (V_LOOP = 24 VDC, T_AMB = 23±2°C, R_LOAD = 250Ω)
Output: 4 to 20 mA; Upscale < 25 mA; Downscale < 3.0 mA
Loop Power: 10 to 32 Vdc. Reverse polarity protected,
Input RTD: Pt100, 2- or 3-wire DIN. 43760, BS1904 characteristics
Max Sensor Wire resistance: 30 Ω/wire
Supply Voltage Effect: ±0.01% of span/Volt
Temperature Coefficient: ±0.01% of span/°C(200°C measurement range)
Linearity Error: ±0.15% of span ±0.1°C
Repeatability: ±0.01 % of span
Load Capability: 50 x (loop power-10) Ω
Input Zero Range: -50 to 50°C, (-58 to 122°F) adjustable
Span: 50 to 200°C selectable; see table 1
Fine Adjustment: 5% of ZERO and SPAN
RFI Effect (5W, 470 MHz): < ±10% of span
Response Time (0 to 90%): 200 ms
Housing Material: Polycarbonate, UL94-V0 grade
Connection: M3 Screw, AWG 14-22
Operation Environment: -40 to 85°C; (-40 to 185oF) 5 to 85 %, non-condensing
Dimensions: 45 Dia. x 20 mm H (1.77 x 0.79")
Weight: 50 g (1.8 oz)

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Programmable transmitter