Thermocouple temperature measurement display instrument XMZ-201

I. Overview

XMZ/T series digital display regulatorProduced according to the standard "Digital Indicators for Industrial Process Measurement and Control Systems", and adopting a novel and innovative circuit design principle and structural form. Due to its simple structure and wiring, it has high reliability, good seismic resistance, and easy use and maintenance.
This instrument has a constant current output function of 0-10mA or 4-20mA, which can be combined with an actuator to form a simple control system, or directly connected to a computer to form an automatic control system without the need for a transmitter, providing convenience for industrial process multi parameter control. It also has two position and three position time proportional PID adjustment functions.
This instrument is suitable for measuring and controlling various parameters in industrial processes. Can be used in conjunction with the following sensors and transmitters or receive the following signals. Display the measured physical quantity directly with numbers.
a、 Thermocouples or radiation thermometers;
b、 Sensors that generate resistance changes through thermal resistance;
c、 Hall pressure transmitter or sensing transmitter that generates DC changes;
d、 Resistance remote transmission pressure gauge;
e、 Standardized analog DC electrical signals (Type II, Type III) or other DC signals.
2、 Main technical indicators
1. Usage, disk mounted. (There are three types: horizontal, vertical, and square)
2. Instruction method: 3? LED digital display with a large reading of 1999.
3. Model specifications: The model specifications are shown in the table below; The measurement range is shown in the table below.
4. Basic error: ± 0.5% F · S ± 1. (F · S is the display range)
5. Resolution: below 0.1 ° C | above 1 ° C | below 200 ° C. (Other physical quantities are the last word)
6. Large wave momentum: less than two resolution values (measured by the deviation of the wave from the midpoint of the wave).
7. Zero drift: Within one hour, the zero drift is less than one-fifth of the basic error.
8. After continuous operation, the error still meets the requirements.
9. Dimensions: 160 * 80 * 175 (mm). The square meter is 96 * 96 * 150 (mm).
10. Hole size: Horizontal 152 * 76 (mm). The vertical dimension is 76 * 152 (mm). The square meter is 90 * 90 (mm).
11. Working power supply: 220V. 50HZ ± 10%.
12. Weight: 1.25kg.
13. Working environment: Temperature range of -10 to 50 ℃, relative humidity not exceeding ± 90%
14. Positional control; Set the range to the full range; The control error is less than ± 0.5% F · S ± 1 word. Output contact capacity: 220V, 3A. (Communication without sensory load).
15. Constant current output: The load capacity is 0-1.5k Ω for 0-10mA, 0-450 Ω for 4-20mA, and the output accuracy is less than ± 0.5% F · S.

three、XMZ Series Digital Indicator Adjustment Instrument Type Spectrograph

four、XM series digital display regulator measurement range

Note: 1. Generally, new division marks are used for ordering, and the ones in parentheses are old division marks. If the user needs special ordering treatment. 2. The specifications listed in Table 2 for measurement range are for reference only, and users can indicate them when ordering as needed. 3. When ordering remote transmission pressure gauges, the input signal range category, display range, and unit symbol should be specified. The various physical parameters being measured are converted into voltage, resistance, and current inputs through sensors or transmitters, and then converted into a unified M-signal through the input circuit. The signal is then amplified by an amplifier and linearized to form a linear relationship between the measured and the signal. Finally, it is divided into three output circuits for output. Send A/D analog-to-digital converter all the way. The converter has circuits such as decoding driver, auto zeroing, polarity display, etc., which directly drive the LED for digital display of the measured object. Send V/I conversion and power amplification along the way, with constant current output. Another way is to compare the comparison circuit with the set value and adjust the output in the form of a contact signal through the execution circuit.