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LCD intelligent temperature transmitterPerformance Overview:
Input single or dual channel thermocouple and thermistor signals, transmit isolated single or dual linear current or voltage signals, and improve the electrical isolation performance between input, output, and power supply.
Technical features:
This product adopts advanced digital technology, has many advanced properties that traditional analog instruments do not have, and has excellent performance in the suppression of high and low frequency interference signals. It can still be reliably applied even in high-power variable frequency control systems. At the same time, the application of digital technology completely overcomes the shortcomings of traditional temperature transmitter linearity. It uses digital calibration, zero free and full potentiometer, automatic dynamic calibration zero, automatic temperature drift compensation and many other advanced technologies internally, and meets the anti electromagnetic interference requirements of the fourth class (harsh industrial site) environment specified in IEC61000-4-4:1995. The application of this series of technologies ensures the stability and reliability of the product scientifically.
This product also adopts synchronous LCD digital display technology for measurement and output values, which can observe actual input and theoretical output values online, and achieve online fault self diagnosis. The above technologies are leading the international advanced level.
temperature transmitterApplicability:
It can be used in conjunction with unit combination instruments and DCS, PLC and other systems, and has a wide range of applications in major projects in industries such as oil fields, petrochemicals, manufacturing, power, metallurgy, etc.
Technical parameters of LCD intelligent temperature transmitter:
LCD digital display: dual row four digit display, floating point decimal.
Display resolution: ± 1 last word
Cold end temperature compensation accuracy: ± 1 ℃ (preheating time 30 minutes)
Allowable lead resistance for measuring thermal resistance: ≤ 15Ω
Output allowed external load impedance:
0~300 Ω when outputting 4-20mA; 0-600 Ω when outputting 0-10mA,
0(1)-5V：≥500KΩ； 0-10V:≥ 1MΩ
Please specify when placing an order that a larger load capacity is required.
Power supply: AC 95~265V
DC 20~32V
Input power: 0.9~1.8W (depending on the model)
temperature transmitterSelection:
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model
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explain
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ZYWDA-C
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×
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×
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×
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×
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×
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LCD intelligent temperature transmitter
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Channel
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Default is single input channel
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D
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Dual input channel
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First output
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1
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4-20mA
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2
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1-5V
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3
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0-10mA
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4
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0-5V
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5
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0-10V
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6
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0-20mA
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7
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1: 1. Electricity level (resistance, millivolts)
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Second output
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Default is no second output
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1
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4-20mA
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2
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1-5V
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3
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0-10mA
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4
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0-5V
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5
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0-10V
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6
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0-20mA
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Communication and alarm functions
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Default is no communication function
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T1
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RS 485 communication
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T2
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RS 232 communication
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A1
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Alarm relay output (single output)
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A2
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Alarm relay output (dual output)
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Power supply mode
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Default is AC 220V
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D
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DC 24V
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LCD intelligent temperature transmitterSelection instructions:
1. Input signal type
Thermocouple: K、E、S、B、J、R、N、T
Thermal resistance: Pt100、Cu100、Cu50、BA1、BA2
Other input and output types will be customized separately;
2. Single channel products can have up to two outputs, while dual input channel products can only correspond to one output per channel.
3. If different input signals are required for dual channel products, please contact our company for special ordering;
4. Communication and alarm products only have a single input, and at most only one analog signal output.
Output state when input signal is disconnected:
There are two output states that can be set: follow mode and alarm mode.
Wiring diagram:
Width x Height x Depth (18 x 100 x 115mm)
LCD intelligent temperature transmitterexplain:
1 Connect the power cord of the 220V power supply product between the power terminals L and N in the diagram,
Connect L to the phase line and N to the neutral line.
2. If the grounding wire is reliably grounded, it can ensure that this product meets the requirements of Class III industrial site environment for electromagnetic interference resistance in IEC61000-4-4:1995. If there is no grounding wire, this indicator will be reduced, but it can still ensure compliance with industrial site environments below Class II, which is applicable to the vast majority of industrial sites.
LCD intelligent temperature transmitterCalibration:
This product adopts intelligent digital design, which can ensure long-term accuracy within the range specified in this manual. If calibration is required, please select the dedicated handheld Chinese programmer provided by our company for operation. |
