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FrançaisAs China Analog temperature transmitter Manufacturers and Analog temperature transmitter Suppliers, Jiangsu Zhaolong Electrics Co., Ltd. is a regional high-tech enterprise and a production base of temperature sensors and temperature control instruments. We have jointly developed and produced a series of thermocouples (thermal resistances) and temperature control electronics with numerous R&D institutions and academies in Shanghai. These products are salable throughout the country and the world, offering an advantage in cost performance. Our products have a renowned reputation in the market and win customers' trust due to their excellent performance, attractive appearance, high reliability, advanced technology, and good cost performance.
With strong technical development team and patent results, we can undertake business for normal and special specifications, and can design & install various large-scale and small-scale automatic temperature control boxes and temperature control rooms and remote monitoring temperature control systems for customers.
Analog temperature transmitter Suppliers
information to be updated
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If you have ever compared two thermocouples on the same pipe and watched them disagree by a few degrees, the sensor tip probably was not the problem. More often, the answer sits at the other end of the loop, in the terminal block where the thermocouple wires meet the instrument. That connection point is the cold junct...
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If you have ever aimed an infrared thermometer at a stainless steel surface and received an unexpectedly low reading, emissivity is almost certainly the reason. Stainless steel is one of the most common materials in industrial plants, yet its emissivity ranges widely depending on how the surface is finished, how hot i...
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Resistance temperature detectors, or RTDs, are among the most reliable temperature sensors used in industrial automation. As a manufacturer that has designed and built temperature sensors and temperature control instruments for years, we often hear the same question from process engineers and maintenance teams: how do...
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At Jiangsu Zhaolong Electrics Co., Ltd., we design and manufacture process temperature transmitters with the same engineering control that goes into our thermocouple and RTD production. As an Analog temperature transmitter manufacturer and supplier in Jiangsu, China, we build transmitters that condition thermocouple or RTD signals into a standardized 4-20 mA output for controllers, PLCs, or SCADA systems. The result is a fixed, repeatable temperature signal over long cable runs.
Within our Temperature transmitter range, we offer analog, rail-mounted, and Intelligent temperature transmitter versions. The analog version is the best fit when the control room needs a simple loop-powered 4-20 mA signal: no protocol setup, no digital configuration, just a calibrated output scaled to the process temperature. Rail-mounted versions simplify cabinet wiring for multi-channel panels, while the intelligent transmitter is the right choice when remote range changes and digital diagnostics are required.
Position in the Temperature Transmitter Range
The analog transmitter is the direct, dependable interface between the temperature sensor and the control system. It is particularly useful in plants where sensors are spread over a large area and the raw thermocouple millivolt signal would be vulnerable to noise and voltage drop. By converting the sensor input into a current loop, the transmitter carries the measured value over long distances without losing accuracy.
- Chemical processing: reactor, dosing and storage vessel monitoring.
- Natural gas: pipeline and storage temperature supervision.
- Petroleum and petrochemical: refinery, distillation and heater control.
- Daily chemical: heating, mixing and storage tank quality control.
These industries share the same requirement: the temperature value must be stable, repeatable, and easily integrated into a higher-level controller. The analog transmitter meets that requirement with a standardized signal that any PLC analog input can read.
Process and Application Fit
The table below summarizes where we place analog transmitters in the process industries and what the transmitter must deliver in each service.
| Industry | Typical duty | Transmitter role |
|---|---|---|
| Chemical | Reactors, dosing and storage tanks | Provides stable temperature feedback for safe, consistent reactions. |
| Natural gas | Pipeline and storage temperature monitoring | Maintains reliable readings under pressure and environmental changes. |
| Petroleum and petrochemical | Refinery, distillation and process heating | Delivers a clean 4-20 mA signal for high-precision control. |
| Daily chemical | Heating, mixing and storage tanks | Supports consistent measurement for quality control and compliance. |
| Power and building materials | Boiler, kiln and flue-gas areas | Combines with high-temperature sensors for long-distance signal transmission. |
Configuration and Sensor Matching
We do not treat the transmitter as an off-the-shelf part. The proposal starts from the sensor type and the required output. We confirm the following before building:
- Sensor input: thermocouple type or RTD curve, including connection extension wire.
- Output type: 4-20 mA loop signal, scaled over the process span.
- Span and range: the zero and full-scale points are set from your operating window.
- Installation and wiring: field enclosure, sensor head, DIN rail, or control panel.
- Hazardous-area requirements: coordination with our explosion-proof thermocouple and RTD assemblies.
- Accessories: connectors, thermocouple sleeves, compensation wire, and high-temperature wire can be supplied with the same order.
Accuracy is confirmed by calibration against the specified span rather than by relying on a category-level datasheet. For each unit we set the relationship between sensor input and output so the controller sees the correct process value for the installed sensor.
Engineering Value and System Scope
Jiangsu Zhaolong Electrics is a regional high-tech enterprise and a production base of temperature sensors and temperature control instruments. We have jointly developed thermocouples, RTDs, and temperature control electronics with R&D institutions in Shanghai, which gives us a direct view of how the sensor, transmitter, and controller interact in a real loop.
Beyond the transmitter itself, we can design and install automatic temperature control boxes, temperature control rooms, and remote monitoring temperature control systems. This means a project can be delivered as a complete temperature loop rather than a collection of separate components. We also support normal and special-specification products and can manufacture to customer drawings or samples.
Quality Assurance and Factory Testing
Quality supervision runs through the entire production process, from wire processing and component manufacturing to assembly and calibration. Our quality system references GB/T 19001-2016/ISO9001:2015 and CE requirements, and we hold national explosion-proof production qualifications for explosion-proof thermocouples and RTDs.
Each transmitter is checked before dispatch. The test department uses low-temperature test tanks, noble-metal high-temperature furnaces, oil-bath test furnaces, and base-metal test furnaces. Calibration resolution reaches 0.01°C and temperature control in the laboratory is maintained within ±0.1°C, so the loop output can be verified against a known temperature source.
Information We Use to Configure Your Solution
- Sensor type and element curve, such as thermocouple grade or Pt100 RTD
- Temperature span, maximum process temperature, and normal operating point
- Output signal and loop power: 4-20 mA two-wire, supply range, cable distance
- Probe construction: process connection, insertion depth, thermowell, head style
- Ambient conditions: temperature, moisture, vibration, hazardous area classification
- Control system interface: PLC, DCS, or SCADA input card
- Quantity, target delivery date, and destination port
Documentation, Maintenance and Serviceability
Orders can include calibration certificates, connection diagrams, and operating instructions. For larger scope, the complete assembly of sensor, connection head, process connection, and transmitter can be packed and shipped as a ready-to-install unit. We arrange sea freight from our Jiangsu plant for regular orders and air freight when delivery is urgent.
Analog transmitters have few user-serviceable parts. To maintain accuracy, check loop wiring, supply voltage, and terminal connections at scheduled intervals. We provide calibration guidance, spare parts, and a 12-month warranty for non-human damage. When a transmitter must be replaced, the configuration can be repeated from the original order record.
Frequently Asked Questions
Q: What sensor inputs can the analog temperature transmitter be ordered with?
We configure the transmitter for the thermocouple or RTD type specified on your datasheet. The analog version converts that sensor input into a proportional 4-20 mA signal, and the span is set during factory calibration.
Q: Can you supply the transmitter as part of a complete sensor assembly?
Yes. As a manufacturer of both sensors and transmitters, we can combine thermocouples, RTDs, connection heads, thermowells, and transmitters into one assembly. We need the process connection, insertion length, and environmental conditions.
Q: What project information is needed for an accurate proposal?
The minimum information is sensor type, temperature span, output requirement, installation location, and hazardous-area classification. If you have a drawing or sample, we use that to confirm the mechanical interface as well.
Q: How are your transmitters tested before delivery?
Each unit is checked in our test department using low-temperature tanks, high-temperature furnaces, and oil-bath test furnaces. Calibration resolution reaches 0.01°C and laboratory temperature control is maintained within ±0.1°C.
Q: What after-sales support is included?
We provide a 12-month warranty for non-human damage, spare parts supply, calibration guidance, and for control cabinets and remote monitoring systems we can support installation and commissioning.
Related Products and Categories
Our portfolio also includes Product for applications with different operating ranges, interfaces or integration requirements.
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+86-181 1593 0076 (Amy)
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+86 (0)523-8376 1478
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[email protected]
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No. 80, Chang'an Road, Dainan Town, Xinghua City, Jiangsu, China
