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 (VLOOP = 24 VDC, TAMB = 23±2°C, RLOAD = 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)
