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Beijing Yulong Instrument Co., Ltd.

1. Overview

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XMT series digital display instruments are a new generation of industrial automation inspection and control instruments developed in recent years. The instruments use advanced medium and large-scale integrated circuits and apply unique circuits. Non-linear correction technology, the setting form includes analog knob setting and digital dial switch setting. The appearance is consistent with the XMZ.XMT series of moving coil instruments and the XMZA, XMTA, XMTD, and Compared with traditional moving coil instruments and electronic regulators, it has the advantages of high display accuracy, good temperature control performance, strong shock resistance, good reliability, clear readings, no parallax, long-distance observation, lightweight size, and easy installation. In terms of adjustment forms, there are two-position, three-position, time proportional, thyristor continuous adjustment, PID adjustment, etc., and the over-limit alarm output function can be added according to user needs. It is the XC series, TD, TE The series of temperature control instrument replacement products can be widely used in plastic machinery, packaging machinery, food machinery, textile machinery, as well as metallurgy, refrigeration, chemical industry, medical and other industries for temperature detection and control in the range of –200~1600℃. The corresponding sensors can also be used to display and adjust physical quantities such as pressure, flow, and liquid level.

The measurement and adjustment range of the instrument is selected from the table below according to the equipped temperature sensing element:

(Table 1)

The equipped temperature sensing element

Graduation number

Range ℃

Resolution

Nickel-chromium – copper-nickel

E

(EA-2)

0~300, 0~400, 0~600

Nichrome – Nickel Silicon

K (EU-2)

0~400, 0~600, 0~800, 0~1300

Electricity

Heat

Even

Platinum-Rhodium – Platinum

S (LB-3)

700~1600

1℃

Copper Resistor

Cu50

(G)

–50.0~150.0 0~50.0

0~100.0 0~150.0

–199.9~199.9, 0~199.9

0.1℃

Thermal

Electricity

Resistance

Platinum resistance

Pt100

（BA 1 BA 2）

0~300, 0~400, 0~600

1℃

p>

2. Instrument Category

(Table 2)

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Model

Sensors

Function

XMZ-10□

XMZD-200□

Temperature display

XMT-10□ (M )

XMTA-200□ (M)

XMTD-200□ (M)

XMT-DA-800□M

Temperature display

and position adjustment

XMT-11□

XMTA-201□ (M)

Temperature display and position adjustment

Adjustment with over-limit alarm

XMT-12□ (F)

XMTA-220□ (F)

XMTD-220 □ (F)

Temperature display and upper and lower limit three-digit adjustment

Instrument with "F"

One relay output for upper and lower limits

XMT-13□ (M)

XMTA-230□ (M)

XMTD-230□M

XMTE-230□M

XMT-DA-830□M

Temperature display

and time ratio adjustment

XMT-16□

XMTA-260□

XMTD-260□

Temperature display controllable

Silicon phase shift trigger adjustment

XMT-17□

XMTA-270□

Temperature display controllable

Silicon zero-crossing trigger adjustment

XMT-18□

XMTA-280□

Three-phase temperature display can be adjusted

Silicon controlled zero-crossing trigger

XMT-19□

XMTA- 290□

If "□" is "1"

A thermocouple should be equipped

E (EA-2)

K (EU-2)

S (LB-3)

If "□" is "2"

A thermal resistor should be equipped

Gu50 (G)

Pt100 (BA1 BA2)

For example, "□" is "3"

Input voltage "mV" signal

For example, "□" is "4"

Input resistance "Ω" signal

>

For example, "□" is "5"

Input current "mA" signal

Temperature display, PID adjustment

Note: The instrument generally adopts Knob setting, if "M" is added after the model number, use digital DIP switch setting.

3. Main technical indicators

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The overall dimensions and installation opening dimensions of the instrument (Table 3)

Instrument Model

Outline dimensions (B×H×L)

Opening size (B×H)

XMT, XMZ -1□□

160×80×150

152 1×76 1

XMT–8□□□

60×120×150

55 1×115 1

MXTA、XMZA

96×96×150

92 1×92 1

XMTD、 XMZD

72×72×150

67 1×67 1

XMTE

48×96×120

42 1×90 1

Note: B is the front width of the meter, H is the height, and L is the depth of the meter, in mm

1. Display mode: XMZ, XMT-1□□ series, XMZA, XMTA series, 3 (1/2) digit digital tube displays the measured value. XMTE, XMTD, XMT-8□□□ series, 3-digit digital tube displays the measured value.

2． Display error: ≤±1%±1 character, (or customer customized error ≤±0.5%±1 character);

3. Set point error: ≤±1%±1 word;

4. Control point switching difference: ≤0.5%

5. Cold end compensation: error within 0~40℃ is less than 2℃;

6. Time proportional adjustment: proportional band 3~6%, period 30±10S;

7. Over-limit alarm: The alarm output point is when the measured signal exceeds 2-10% of the set value (full range), and the alarm range is ≤ 1;

8. Output pulse signal: phase-shifting pulse or zero-crossing trigger pulse with amplitude greater than 3V and width greater than 40us;

9. P, I, D adjustment: (1) Output 0~10mA; (2) Load 800±80Ω; (3) P (proportional band) 4%; (4) I (integration time) 2.5min; (5) D ( Differential time) 30S;

10. Output contact capacity: AC 220V, 3A (resistive load) or 1A (inductive);

11. Temperature coefficient: When used within the range of 0~50℃ with a deviation of 20±2℃, the temperature coefficient is less than 0.05%/℃;

12. Working power supply: AC 220V±10%, 50Hz, power consumption less than 5W;

13. Working environment: non-corrosive gas environment with temperature 0~50℃ and relative humidity 30~85℃;

14. Overall dimensions and opening dimensions: see Table 3;

15. Weight: approx. 0.8 kg.

4. Use and adjustment

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1. Check whether the graduation number of the instrument and the temperature sensing element are the same;

2. Instruments equipped with thermocouples do not need to be connected to a 15Ω external resistance, which does not affect the accuracy. If the distance is far, the thermocouple and instrument must be connected with corresponding compensation wires, and the polarity must not be reversed to avoid affecting accuracy; the installation position of the sensor It must be able to accurately and timely reflect the rise and fall of the temperature of the measured object; if the instrument display is abnormal, check whether the sensor connection is open (the instrument has a couple protection function); instruments equipped with thermal resistors generally do not connect three 5Ω external resistors, but the thermal resistance The specifications and lengths of the three connecting wires of the resistor should be the same. If the leads are longer, it is recommended to use external resistance and declare it when ordering;

3. Insert the meter into the mounting hole, and tighten the upper and lower or both sides of the mounting screws appropriately. Tighten the screws. Be careful not to overtighten the screws to avoid damaging the casing.

4． XMZ,

5. XMT-101, 102, XMTA-2001, 2002, The digital display is the required temperature value; after adjustment, turn the switch to the "measurement" position. At this time, the digital display is the actual temperature value of the measured object. When the actual value is lower than the set value, the green light turns on and the output The total low-pass and total high-break of the relay. When the actual value reaches or exceeds the set value, the red light turns on and the total high-pass and total low-break of the relay are output. For instruments set by DIP switches, just turn the DIP switch to the required temperature value after wiring. The control status is the same as above.

6． XMT-121 (F), 122 (F), XMTA-2201 (F), 2202 (F), "Setting" and rotate the corresponding lower limit setting knob at the same time. At this time, the digital display is the required lower limit temperature value; turn the switch to "Upper Limit Setting" and rotate the corresponding upper limit setting knob. At this time, the displayed is the required upper limit temperature value; then turn the switch to the "Measurement" position. The digital display is the actual temperature value of the measured object. When the actual value is lower than the lower limit set value, the green light is on and the upper limit relays are all low. On, total high-pass; when the actual value reaches or exceeds the lower limit set value but is still lower than the upper limit set value, the green light and red light go out, the lower limit relay is always low-pass and total high-pass, and the upper limit relay is always low-pass and total high-break. ; When the actual value reaches or exceeds the upper limit setting value, the red light turns on, and the upper and lower limit relays here are all low-break and high-pass. Generally, when controlling temperature, the lower limit relay output can be used for auxiliary heating control and the upper limit relay output can be used for heating control. The lower limit relay output can also be used for temperature control and the upper limit relay output can be used for over-temperature alarm. For instruments with an "F" suffix, the upper limit temperature value must be adjusted to be higher than the lower limit temperature value.

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When the actual value is lower than the lower limit value, the green light is on, and the relay is always low-pass and the temperature rises; when the actual value is higher than the lower limit value and lower than the upper limit value, it is still always low-pass and the temperature rises; when the actual value is higher than the upper limit value, the green light is on. When the red light is on, the relay is always high-pass and always low-cut, and the heating stops. Only when the actual value is lower than the lower limit value, the green light is on, the total low-pass, and the cycle starts over and over again. There is only one relay output in the whole process, so that it can be easily connected with the load. Patch.

7. XMT-131, 132, XMTA-2301, 2302, XMTD-2301, 2302, High cut, the load heats up; when it enters the proportional band, the relay begins to switch regularly, and the traffic lights change periodically; the higher the temperature, the shorter the total low-pass time, and vice versa, the instrument changes the average heating power of the load Methods to change the temperature, such as instruments with over-limit alarm functions, such as XMTA-2311, 2312, Sound and light alarm or cooling device. Other usage methods are the same as XMT-101 and 102.

5. Things to note

1. The environment when the instrument is being stored should meet the technical requirements, and there should be no corrosive gases on site.

2． If the instrument is damaged due to poor manufacturing quality, it will be repaired free of charge within 18 months; if it is caused by improper unpacking or improper storage or use, our factory will be responsible for lifetime maintenance, and the user will pay the repair cost as appropriate.

3. When ordering, please indicate the instrument model on the contract, along with the graduation number and measurement range of the temperature-sensing element, such as Specifications, length, etc.;

4. If the instrument is used for measurement and control of pressure, flow, liquid level, etc., the name, model, and specifications of the accompanying detection components must be informed;

5. Attachments: Two sets of installers, one instruction manual

6. Specially recommended new products

(1) YR series intelligent industrial temperature, pressure, flow, liquid level, humidity controller/ regulator.

Features: 1. One instrument has programmable inputs: K, S, N, B, E, J, T, WRe and other thermocouple signals, Pt100, Cu50 and other thermal resistors, and 0–5V, 1–5V, mA, mV linear input signals. Built-in high-precision nonlinear correction function.

2． Programmable output: One meter can adapt to SSR voltage, 0~10 mA, 4~20 mA,

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0 ~20 mA, thyristor trigger output, relay output, etc.

3. Expert PID artificial intelligence control algorithm, self-tuning parameters, high-precision non-overshoot control.

4. 85V~264VAC power supply can be adapted, and all imported IC chips have strong anti-interference performance.

5. Model and function introduction

YR508T: Intelligent PID temperature controller (simple operation type). Programmable input of various thermocouples and thermal resistors; modular output supports SSR voltage, relay contact switch and thyristor zero-crossing trigger output; it has upper and lower limit alarm modes and other functions. It has low price, powerful functions, high control accuracy (typically 0.1°C), and strong anti-interference performance. It is an ideal product to replace imported and domestic smart meters.

YR708: Expert P I D artificial intelligence adjustment, transmission and communication functions

YR808: Has all the functions of YR708, and has manual/automatic non-disturbance two-way switching function

YR808P: Has all the functions of YR808, and has 50-time program control function YR708M/M2: 6-channel/dual-channel display alarm instrument

YR708H/Y: Intelligent flow totalizing instrument, with temperature and pressure compensation function .

6． Detailed instructions can be obtained from our company or dealer.

(2) YR-2/YR-3 series intelligent dual digital display time relay:

Features: 1. Display the set value and delay value at the same time.

2． The set time range is 0.01 seconds to 99 hours and 59 minutes. High accuracy: daily error is less than 5 seconds.

3. There are single delay type and loop type for you to choose from (suitable for most time control occasions).

4． Appearance dimensions: 48×48, 48×96, 96×96, 96×48, 72×72 and other shapes are available.

5. Comprehensive display of working status, misoperation reminder, low price and good quality

(3) Programmable time controller: Controls the number of times the equipment is turned on and off 64 times a day (32 segments), suitable for multiple daily cycles Time period controls the on and off of electrical appliances (or equipment).

(4) High-precision intelligent temperature control cabinet (box). (5) Digital display current and voltage meter.