The HollySys AW2000 head mounted temperature transmitter thermowell delivers precise industrial temperature measurement and robust signal conversion for rigorous process control applications. Engineered for seamless integration into complex automation architectures, this transmitter converts raw thermal inputs into standardized analog outputs to ensure stable plant operations.
Accurate temperature monitoring remains critical in continuous process industries, where thermal fluctuations can cause severe product degradation or costly emergency shutdowns. When plant operators require reliable signal transmission across harsh environments plagued by electromagnetic interference and thermal stress, this transmitter provides an essential bridge within the field instrumentation layer. It processes weak mV or resistance signals directly at the measurement point, amplifying and linearizing them before transmitting a robust 4~20mA loop current back to the control system. By housing the electronics securely within a compact assembly coupled with a protective thermowell, it safeguards sensitive measurement circuitry against physical shock, corrosive media, and high operating pressures.
Technical Specifications
Model: AW2000
Product Series: AW2000 Series Head Mounted Temperature Transmitter Thermowell
Input Sensor Type: PT100, PT1000, Cu50, Cu100 Resistance Temperature Detectors, R, S, B, J, T, E, K, N Thermocouples
Accuracy Class: 0.1 Class
Output Signal: 4~20mA Current Loop
Protection Tube Diameter: 16.0 mm
Wetted Material: 316L Stainless Steel (Customizable)
Explosion Proof Rating: Ex db IIC T1...T6 Gb, Ex ia IIC T1...T4 Gb, Ex tb IIIc T80°C Db
Process Connection: Fixed Thread, Movable Thread, Movable Flange, Fixed Flange, Direct Welding (Customizable)
Cold Junction Compensation: Automatic Internal Compensation
Electrical Isolation: Standard Input-to-Output Isolation
System Integration and Hardware Setup
Integrating the AW2000 into an industrial control loop requires meticulous attention to wiring practices and signal shielding. Field technicians must utilize twisted-pair shielded cables for the 4~20mA output loop to mitigate electromagnetic interference generated by nearby variable frequency drives and heavy power cables. The cable shield should be grounded exclusively at one end—typically at the control cabinet side—to prevent ground loops that introduce electrical noise and measurement errors.
When mounting the transmitter head inside the connection head of the thermowell assembly, ensure that terminal screws are securely tightened to maintain low-resistance electrical contact. Proper cable entry sealing using certified cable glands is mandatory to preserve the enclosure integrity against moisture ingress and corrosive vapors. Before system startup, verify loop power polarity and measure the loop resistance to ensure it falls within the specified load capability limits of the power supply unit.
Reliability and Environmental Durability
The AW2000 is engineered to withstand demanding industrial operating conditions found in petroleum, chemical, metallurgical, and pharmaceutical facilities. The protective thermowell, constructed standard from high-grade 316L stainless steel, resists aggressive chemical attack and high flow velocities. For explosive hazardous locations, the unit offers comprehensive explosion-proof and intrinsically safe certifications, including Ex db and Ex ia ratings, ensuring safe operation in flammable gas and dust environments.
Internal electronic components feature conformal coating and robust thermal management to withstand ambient temperature extremes without drifting. Automatic cold junction compensation for thermocouple inputs eliminates environmental temperature gradient errors at the terminal block. These design measures collectively maximize mean time between failures and extend service intervals across continuous process cycles.
Selection Guidance and Alternative Options
Selecting the appropriate temperature transmitter configuration requires evaluating process temperature ranges, chemical compatibility of the thermowell material, and hazardous area classification requirements. For standard non-corrosive applications, standard 316L thermowells with fixed threads provide an economical and reliable solution. For high-velocity or highly corrosive fluid streams, customized immersion lengths, specialized alloy coatings, or flanged connections should be specified.
Beijing Zhongping Technology maintains a comprehensive inventory of AW2000 units and compatible thermowell assemblies, enabling our technical support team to assist engineering personnel with cross-reference selection, customized probe dimensioning, and fast-turnaround replacement solutions.
Frequently Asked Questions (FAQ)
1. What is the standard delivery lead time and stock availability for the AW2000?
Beijing Zhongping Technology maintains extensive regional warehouse reserves of standard AW2000 configurations, enabling same-day processing and rapid dispatch to minimize plant downtime.
2. What are the terms of warranty and RMA procedures for this transmitter?
All units are backed by a comprehensive 12-month manufacturer warranty, supported by Beijing Zhongping Technology with rigorous pre-shipment inspection and streamlined local RMA evaluation.
3. What is the operating voltage range and power consumption of the loop-powered output?
The transmitter operates on a standard loop power supply ranging from 12 VDC to 36 VDC, with low power consumption designed to support standard 4~20mA two-wire loops without thermal overloading.
4. What communication protocols and output signals are supported by this device?
The unit provides a standard analog 4~20mA industrial current output proportional to the calibrated temperature span, offering high immunity to signal degradation over long wire runs.
5. What are the IP protection ratings and maximum ambient temperature limits?
The housing typically achieves IP65 or higher protection when properly installed with certified cable glands, operating reliably across ambient temperatures from -40°C to +85°C depending on the electronic configuration.
6. What are the standard mechanical installation dimensions and process connection types?
The unit accommodates standard thermowell connection heads with process threads including NPT and metric threads, alongside flange and direct weld options designed for a standard 16.0 mm protection tube diameter.
7. What routine maintenance and calibration checks are recommended for field upkeep?
Routine maintenance involves checking terminal connection tightness, inspecting cable gland seals for degradation, and performing loop calibration checks against a certified reference calibrator annually.
8. How does the device handle sensor signal linearization and cold junction compensation?
The internal microprocessor automatically executes digital linearization algorithms for selected thermocouple and RTD curves while applying real-time automatic cold junction compensation for thermocouple inputs.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1) Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
+86 010-64225983
+8613811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China
