Digital display instrument of double input and display apparatus1

Double input display apparatus is a kind of commonly used digital display instrument, in the industry, electronics, electric power, machine tools, such as petroleum, chemical industry has a certain application in the field. Digital display instrument of the functions and characteristics of the double input display apparatus and technical parameters are all users need to develop, the following is to introduce specific engineering years.

digital display instrument of the functions and characteristics of the double input display apparatus:

1, double input signal types: same thermocouple and resistance, the same current voltage, resistance and current or voltage.

2, can be set up respectively the main and vice display range of input, decimal digits and migration.

3, the switch quantity control any assigned to the main input and vice, or between main and deputy input value calculation. 4, Lord, vice input deductions for such operations can be performed.

5, 5 switch output, a disconnection alarm for the input part, four for a type of control or programmable timer, counter, or programmable intelligent sound and light alarm. Four set value can be set up independent parameters and delay interval.

6, can outside for 2 to 4 VD C, 1 or 2 two wire transducer.

7, which can realize associated alarm control mode, can be the main input and associated control.

8, 8 kinds of alarm control mode selection.

9, there are two or three analog output. Lord, vice input can simultaneously or respectively simulated analog output, also can be the operation value between main and deputy input analog output, analog output of zero and full numerical range can be displayed in any setting.

10, can provide multiple host, host, not the way of host R S 4 August 5 asynchronous serial communication way. Communication data validation in accordance with R C - C 1 6 U. S. data communication standard, high reliability circulation, bar code check.

digital display instrument display apparatus with two inputs of the main technical indicators:

1, precision: measurement control cycle: 5 s;

2, display range: - 1999┅9999;

3, measurement accuracy, plus or minus 05% FS or plus or minus 02% FS + 1 word, the temperature drift, drift to compensate automatically;

4, transmitting precision: plus or minus 03% FS + 1 word.

5, alarm, alarm output contact capacity: AC220V3A ( Impedance load) ;

6, sensor fault relay output ( Extensions) 。

7, others: cold junction compensation, digital filtering, printing interfaces, and other functions. Also have zero and full correction, root operation, sensor failure, alarm mode, the switch quantity input, internal timer and switch output, display and other extensions.

display instrument of double input display apparatus has been introduced me the use of knowledge, through the above article tells us the double input of digital display instrument display apparatus of understanding and deepened step, can be more convenient in the later use.

more high-quality sensors at https://www. rtdcn。 Com /

key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor