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Add Time：	2016-08-21 09:34:02
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Product description:

1. Overview:
SBWR, SBWZ series thermocouple, heat resistance temperature transmitter is in the DDZ series instrument installation type temperature transmitter unit, and industrial thermocouple, heat resistance, it USES two wire transmission mode (two wire as a power input and output signal of public transmission line).To convert industrial thermocouple, thermal resistance signal to or with the input signal and the temperature signal into a linear 4-20 ma, 0 to 10 ma, the output of the signal.
The temperature transmitter can be installed directly on the thermocouple, heat resistance, terminal box and the formation of integration of the structure.It as a new generation of thermometer table can be widely applied to metallurgy, petroleum, chemical, power, light industry, textile, food, national defense and scientific research and other industrial sectors.
2, the main features:
Adopt silicon rubber, or epoxy resin sealing structure, so the seismic, moisture resistance, suitable for installation at the scene of the harsh environment.
, on-site installation in the terminal box use of thermocouple, heat resistance, direct output 4-20 ma, 0 to 10 ma, the output of the signal.Such already save expensive compensation conductor, and improve the anti-interference ability in the process of signal transmission over a long distance;
Thermocouple transmitter had a cold end temperature automatic compensation function;
, high precision, low power consumption, the use of wide temperature range, stable and reliable work;
, wide applicable scope, can form integrated installation structure with thermocouple, heat resistance, can also be used as a functional modules installed on the testing equipment and instrument panel use;
, intelligent temperature transmitter can pass HART communication or handheld device with a modem and the upper machine and PC to the transmitter model, index number, the range of remote information management, configuration, variables, monitoring, calibration and maintenance functions;
Intelligent temperature transmitter can be adjusted according to the user's actual needs, according to direction of the transducer, and display the measured medium temperature transmitter, the sensor values change, the output current and percentage rate;
3, how it works:
The thermocouple or heat resistance sensor measured temperature will be converted into electrical signals, then send the signals to the input of network in the transmitter, the network contains zero and thermocouple compensating circuit.After zero input signals to the operational amplifier for signal amplification, the amplification of a signal path V/I converter after computing with 4-20 ma dc current output;Another through A/D converter after processing to display meter.There are two kinds of the linearization of the transmitter circuit, adopt feedback way.For thermal resistance sensors, use the way of positive feedback correction, the thermocouple sensor, with multiple line approximation method for correction.The integration of digital display temperature transmitter has two ways.LCD display of the temperature transmitter with two wire system output, the temperature of the LED display transmitter output in three wire system mode.
4, technical parameters
1, the input signal: thermocouple: K, E, J, B, S, T, N.Hot resistance: Pt100, Cu50,
Cu100 (three-wire system, four wire).Intelligent temperature transmitter of the input signal can be arbitrarily set by the handheld device and PC;
2, the output signal: within the scope of the range 4-20 ma dc output signal, and the thermocouple or heat resistance of the input signal into a linear or linearly to the temperature.Intelligent temperature transmitter output 4-20 ma dc signal superposition accord with standard of HART protocol communication at the same time;Isolation type temperature transmitter: the input and output isolation, isolation voltage 500 v, increased the common-mode interference resistance, more suitable for use with computer networking;
3, the basic error: 0.5% FS, 0.2% FS, intelligent 0.2% FS.
4, connection mode: two wire, three wire system, four wire;
5, display mode: four LCD display field temperature, four intelligent LCD by PC or handheld device set to show the scene temperature, sensor value, any kind of parameters of the output current and the percentage rate;
6, working voltage: ordinary type 12 v - 35 v, intelligent 45 v, 12 v - rated working voltage of 24 v
7, allow the load resistance: 500 omega (24 VDC power supply);The limit load resistance R (Max) = 50 (Vmin - 12), for example, in the rated working voltage 24 v, load resistance may choose to use within the range 0-600 omega.
8, working environment: a: the environment temperature - 25 to + 80 ℃ (regular)
- 25 to + 70 ℃ (digital display type)
- 25 to + 75 ℃ (smart)
B: relative humidity: 5% to 5%
C: mechanical vibration f 50 hz or less, the amplitude of 0.15 mm or less
D: no corrosion gas or a similar environment;
9, environment influence coefficient: delta / ℃ 0.05% or less.
5, temperature measurement range