The MTL4575 is a single-channel temperature converter from the MTL4500 series. It interfaces with thermocouples and resistance temperature detectors (RTDs) located in hazardous areas.
Technical Specifications
Number of Channels: One
Input Types: Thermocouples (J, K, T, E, R, S, B, N, XK mV) and RTDs (Pt100, Pt500, Pt1000, Cu-50, Cu-53, Ni100/500/1000)
Signal Source Location: Zone 0 IIC T4–T6 or Division 1 Group A hazardous area
Input Signal Range: –75 to +75 mV or 0 to 400 Ω (up to 1000 Ω for Pt and Ni sensors)
Input Span: 3 to 150 mV or 10 to 400 Ω (up to 1000 Ω for Pt and Ni sensors)
RTD Excitation Current: 200 µA nominal
Cold Junction Compensation: Automatic or selectable
CJC Error: ≤ 1.0 °C
Common Mode Rejection: 120 dB at 240 V, 50 or 60 Hz
Series Mode Rejection: 40 dB at 50 or 60 Hz
Calibration Accuracy (20 °C): ±15 µV or ±0.05% of input (mV/TC), ±80 mΩ (RTD), ±11 µA (Output)
Temperature Drift (Typical): ±0.003% per °C (mV/TC), ±7 mΩ per °C (RTD), ±0.6 µA per °C (Output)
Safety Drive on Sensor Failure: Upscale, downscale, or off
Early Burnout Detection: Thermocouple loop resistance > 50 Ω
Output Range: 4 to 20 mA into 600 Ω maximum
Alarm Output: Relay ON in alarm, 250 mA at 35 V maximum
Maximum Lead Resistance (TC): 600 Ω
Response Time: Configurable, default 500 ms
LED Indicators: Green (power and status), Yellow (alarm active)
Current Consumption: 50 mA at 24 V with 20 mA output
Power Dissipation: 1.2 W at 24 V
Safety Parameters: Um = 253 V rms or dc (refer to certificate)
Configuration Interface: PCS45 software with PCL45USB interface
Installation Notes
Install on a compatible MTL4500 backplane
For thermocouple inputs, connect the HAZ-CJC plug to terminals 1–3
Use PCS45 software with PCL45USB interface for configuration
Follow intrinsic safety wiring standards for hazardous area compliance
Answer 1: PLC DCS Pro Ltd. collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
Question 2: What Is The Warranty Period?
Answer 2: We offer a standard one-year warranty for all new and original items.
Question 3: What Payment Methods Do We Accept?
Answer 3: We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
Question 4: What Shipping Methods Do We Use?
Answer 4: We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
Question 5: What Is Our Delivery Time?
Answer 5: Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
Question 6: How Do We Package The Goods?
Answer 6: Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
Question 7: How Can Customers Contact Us And Request A Quote?
Answer 7: Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.
Warranty Conditions
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
🛡️Coverage Details:
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
📝Claim Process:
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
🚚Shipping Assistance:
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.
🚫Exclusions:
Unauthorized modifications, repairs, or misuse of the product.