304 series wireless intelligent temperature transmitter
Smart temperature sensor
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• Support zigbee standard (IEEE802.15.4) and wireless data transmission with higher security level.
• While connecting to the thermal resistance transducer, it has short-circuit and open-circuit monitoring function;; while connecting to the thermocouple transducer, it has open-circuit monitoring function.
• The parameter configuration of transmitter: by using the 3 built-in operating buttons together with the highlighted LCD display, the parameters of the transmitter can be set locally conveniently. In addition, the remote parameter configuration of the transmitter can be realized easily by protocol converter.
• The rotatable LCD display enhances the flexibility of transmitter installation and displays the percentage of current measured value in the full scale, current measured value and its unit and the sensor type and the diagnostic messages of transmitter etc.
• The protection level of shell is IP65, which can be applied to the outdoor usage.
• Support all the transducers conforming to IEC751 and IEC584.
304XX1: Pt100, Pt1000, Cu50, Cu100
304XX2: S, R, B, K, N, E, J, T, WRe3-25
304XX3: Pt100, Pt1000, Cu50, Cu100
S, R, B, K, N, E, J, T, WRe3-25
Accept the user’s designation
304XX1: A two/three/four-wire system thermal
304XX2: A thermocouple transducer and a built-in thermal resistance transducer of a transmitter can work as the cold junction compensation or set the fixed cold-junction temperature to compensate without connecting to the thermal resistance transducer (The compensation precision will effect the final measurement accuracy.)
304XX3: adopt the connection mode of 304XX1 or 304XX2 according to the needs.
Appendix 1: List for the inputted sensor types and accuracies
The length of cable connecting to the sensor
≤3M, impedence of wire＜1Ω
Accuracy (Digital measurement accuracy)
See appendix 1: List for the inputted sensor types and
Long term drift
The first year ＜0.035% full scale
Effect of ambient temperature
See appendix 2: Effects of ambient temperature
Rated operating conditions
4K4H accords with EN 60721-3-4 (Used stationarily in the occasions without climate protection)
Aluminium die casting
Accord with DIN EN 60068-2-29/03.95
Accord with DIN EN 60068-2-6/12.07
1.3kg (not including temperature sensor)
See Appendix 4: Dimensional drawing for wireless intelligent temperature transmitter
Cable sealed tube/sensor connecting thread
M20×1.5 other threads need to use adapters
Connection of sensor
Display and control
Size of display
℃ or ℉
Use the 3 buttons of the panel in the field
+24V DC ±5%
Battery powered (The service life of battery can reach to 5 years.)*
Scan the QR code to read on your phone
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Fujian WIDE PLUS Precision Instrument Co., Ltd.
National unified technical service telephone:
ADD：No.16, Xingye West Road, Mawei High-tech Zone,Fuzhou,Fujian China 350015