Zener Type Pressure Transmitter with Shunt-Diode Safety Barrier
|
Still deciding? Get samples of $ !
Order Sample
|
Product Details
| Customization: | Available |
|---|---|
| Type: | Network Type |
| Measuring Medium: | Temperature |
Shipping
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
Payment Guarantee
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Secured Trading Service
Diamond Member Since 2025
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Importers and Exporters
High Repeat Buyers Choice
Fast Delivery
Low MOQ
The supplier has import and export rights
More than 50% of buyers repeatedly choose the supplier
The supplier can deliver the goods within 30 days
The MOQ for the supplier's products is 1
Sign In to see all verified strength labels (18)
Find Similar Products
Basic Info.
- Model NO.
- MTL7787+
- Display Type
- LCD
- Site Display
- Site Display
- Accuracy
- 0.1
- IP Rating
- IP67
- Certification
- CE
- Customized
- Customized
- Item Name
- Eatonr Mtl7787+ Shunt-Diode Safety Barrier
- Warranty
- 1 Year
- MOQ
- 1PC
- Customized Support
- OEM, ODM
- Infrared Resolution
- Other
- Brand Name
- Emerson Eatonr
- Thermal Color Palettes
- 8 Color Palettes
- Material
- Plastic
- Place of Origin
- China, Singapore, Germany
- Output
- 4 ~20mA Hart
- Measuring Range
- 0 to 100 Deg C
- Housing
- Dual-Compartment Field Mount
- Single Package Size
- 10*10*10 Cm
- Single Gross Weight
- 1.000 Kg
- Selling Units
- Single Item
- Transport Package
- Carton Boxes
- Specification
- 5*5*5cm
- Trademark
- Emerson Eatonr
- Origin
- China, Singapore, Germany
- HS Code
- 90262000
- Production Capacity
- 100/Month
Packaging & Delivery
- Package Size
- 10.00cm * 10.00cm * 10.00cm
- Package Gross Weight
- 2.000kg
Product Description
At its essence, the MTL7787+ is an intrinsically safe, zone - powered, zener - diode barrier. It is engineered to safely divert excess electrical energy to ground, thereby safeguarding equipment in hazardous areas from sparking or overheating. Each zone within the barrier contains two stages of pulse - tested zener or forward - connected diodes and an "infallible" terminating resistor. In the event of an electrical fault in the safe area, the diodes act as voltage limiters, restricting the voltage that can reach the hazardous area. Simultaneously, the resistor functions to limit the current. A fuse is incorporated to protect the diodes, and the two - stage voltage limitation design ensures continuous safety even if one of the stages fails. Notably, no active output - current limiting circuits are utilized, relying instead on this passive network of components for reliable performance.
The MTL7787+ is designed to operate within a specific voltage range. It can handle an input voltage that is compatible with typical industrial power supplies, and its output voltage is regulated to a safe level for use in hazardous environments. For example, it might have an input voltage range that allows it to connect to standard 24V or 26V DC power sources commonly used in industrial settings. The output voltage, such as 28V, is precisely controlled to provide the necessary power to field devices while maintaining safety standards. This output voltage is stable enough to power 2 - wire transmitters, both conventional and intelligent types, ensuring proper operation of these devices in potentially explosive areas.In terms of current, the barrier has a defined output current capacity, such as 93mA. This current level is sufficient to drive various field devices like sensors and actuators used in hazardous area applications. When connected to a 2 - wire transmitter, it can supply the required current for the device to function accurately and transmit data back to the control system. The ability to handle this current while maintaining safety is a critical aspect of its design, as it ensures that the field devices receive the necessary power without posing a risk of ignition in the hazardous environment.
Features
The power supply for the MTL7787+ typically falls within the range of 20 - 35 VDC. This wide power supply range offers flexibility in installation, as it can be easily integrated into different industrial power systems. Whether in a plant with a 24V DC power infrastructure or one with a 30V DC power supply, the MTL7787+ can be configured to operate effectively. The stable power supply is essential for the barrier to perform its voltage and current limiting functions accurately, providing a reliable safety barrier between the safe and hazardous areas.The MTL7787+ holds a high - level safety certification, being certified "ia" for all zones and "iic" for all explosive atmospheres. The "ia" certification indicates that it is suitable for use in the most demanding hazardous areas, where the risk of explosion is significant. This certification is based on rigorous testing and compliance with international safety standards. It means that the barrier has been thoroughly evaluated for its ability to prevent electrical energy from causing ignition in explosive environments. The "iic" classification further specifies its compatibility with a wide range of explosive gases and vapors, making it a versatile choice for various industrial applications, from oil and gas refineries to chemical plants.
Industrial Process Control
In industrial process control systems, the MTL7787+ is commonly used with 4 - 20mA transmitters. These transmitters are responsible for measuring various process variables such as temperature, pressure, and flow in hazardous areas. The MTL7787+ ensures that the electrical signals from these transmitters are safely transmitted to the control system in the safe area. For instance, in an oil refinery, temperature transmitters located in areas where flammable gases are present can be connected to the MTL7787+ barrier. The barrier restricts any excessive electrical energy that could be generated by the transmitter in case of a fault, preventing potential ignition of the surrounding explosive gases.It is also suitable for use with digital (switch) inputs in hazardous areas. In applications where sensors detect the presence or absence of an object, such as in a chemical plant where valves need to be controlled based on the position of a mechanical switch, the MTL7787+ provides the necessary safety isolation. The switch inputs are connected to the barrier, which then transmits the safe signal to the control system, ensuring that any electrical transients or faults in the switch circuit do not pose a threat to the hazardous environment.In conventional fire detection systems within hazardous areas, the MTL7787+ plays a crucial role. Fire detectors in these areas need to be powered and communicate with the central fire alarm system. The MTL7787+ acts as a safety interface, providing the necessary power to the fire detectors while preventing any electrical hazards from reaching the detectors in case of a fault in the power supply or control system. This ensures the reliable operation of the fire detection system, which is essential for the safety of personnel and property in hazardous industrial facilities.
| Output Voltage | 28V | Power Supply | 20 - 35 VDC |
| Output Current | 93mA | Accuracy | ±2A |
| Maximum Safe Area Voltage | 250V rms or dc | LED Display | Green for power |
| Load Impedance | 0 - 500Ω | Operating Temperature | -20 - 60°C |
| Storage Temperature | -40 - 80°C | Humidity | 5 - 95% RH |
| Terminal Type | Can accommodate 2.5 mm standard or single core | Weight | 140g |
| Number of Channels | 2 | Maximum End - to - End Resistance | 333Ω |
| Fuse Rating | 50mA | Explosion Rating | IIC |
| Intrinsic Safety Certification | ia | Maximum Zener Diode Voltage when Fuse Blows | 28V |
| Minimum Value of Terminating Resistor | 300Ω | Maximum Short - Circuit Current | 93mA |
KeRui (Weifang) Automation Equipment Co., Ltd.Specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply to specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
1.Q: How long is the delivery?
-- Mostly within 10days
2.Q:Can I get a sample?
-- Sure, contact our sales please
3.Q:What is your MOQ?
-- 1pcs
4.Q: How about warranty time?
-- 12month
5.Q: How can I visit your factory?
-- Fly to Qingdao air port, it's our pleasure to pick you up.
6.Q:How do you control your quality ?
-- We have EPR system .we control from parts, process, testing, packing ,retesting.
Every Sensor will be tested two times before reach you, after that sport test for the third time. Make sure about the quantity.
){kind=link}
Send your message to this supplier
People who viewed this also viewed
Find Similar Products By Category
- Supplier Homepage
- Products
- Temperature transmitter
- Zener Type Pressure Transmitter with Shunt-Diode Safety Barrier
Related Categories
Hot Searches
More