MTL offers the best choice in DIN-rail and backplane mounting isolators to meet the requirements of modern systems. The DIN-rail mounting isolator ranges provide a wide choice of functions with high accuracy and reliability, while the backplane mounting products are established as the leading IS system interface with solutions for all the major DCS companies.
The MTL5500 range modules are versatile yet simple to apply; use the latest technology and yet are well proven.
These contrasting attributes stem from the progression of our expertise in the design and manufacture of isolators for intrinsic safety and the application of innovative technology to achieve the required separation and segregation of the circuits.
The MTL5500 (DIN-rail mounting) and MTL4500 (backplane mounting) isolators share a common design, differing only in the mechanical mounting and connection methods.
MTL4510 – MTL5510 SWITCH/ PROXIMITY DETECTOR INTERFACE 4-channel, digital input
The MTLx510 enables four solid-state outputs in the safe area to be controlled by up to four switches or proximity detectors located in a hazardous area. Each pair of output transistors shares a common terminal and can switch +ve or –ve polarity signals. A range of module configurations is available (see Table 1) through the use of selector switches. When proximity detector modes are selected, LFD is enabled and the output switches to OFF if a line fault is detected.
See also common specification
Number of channels
4, configured by switches
Location of switches
Zone 0, IIC, T6 hazardous area Div 1, Group A hazardous
location Location of proximity detectors
Zone 0, IIC, T4-6 hazardous area if suitably certified Div 1, Group A, hazardous location
Inputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)
Voltage applied to sensor 7 to 9V dc from 1kΩ ±10%
Normal phase Outputs closed if input > 2.1mA (< 2kΩ in input circuit)
Outputs open if input < 1.2mA (> 10kΩ in input circuit)
Hysteresis: 200µA (650Ω) nominal
Line fault detection (LFD) (when selected)
User-selectable via switches on the side of the unit.
Open-circuit alarm on if Iin < 50µA
Open-circuit alarm off if Iin > 250µA
Short-circuit alarm on if Rin < 100Ω
Short-circuit alarm off if Rin > 360Ω
Note: Resistors must be fitted when using the LFD facility with a contact input
500Ω to 1kΩ in series with switch
20kΩ to 25kΩ in parallel with switch
Floating solid-state outputs compatible with logic circuits
Operating frequency: dc to 500Hz
Max. off-state voltage: ± 35V
Max. off-state leakage current: ± 50µA
Max. on-state resistance: 25Ω
Max. on-state current: ± 50mA
Green: power indication
Yellow: four: on when output active
Red: LFD indication + faulty channel’s yellow LED flashes
Maximum current consumption
40mA at 24V (with all output channels energised)
Power dissipation within unit：
0.96W at 24V, with 10mA loads
Safety description (each channel)
Uo=10.5V Io=14mA Po=37mW Um = 253V rms or dc
Other related models for MTL5500 range product as below for your reference.
MTL5523V – V
For more information about MTL5510 safe isolators, please feel free to contact me here.
HONGKONG XIEYUAN TECH CO., LIMITED
Mobile :86-13545206420(Whatapp&Wechat is available)
E-mail:Diana@hkxytech.com Or Cc:Dianatian118@gmail.com