MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
Analogue inputs (low-level)
Thermocouples and mV sources
The recommended barrier for thermocouples and mV sources is the MTL7760ac. This 2-channel non-polarised barrier retains the ‘earthfree’ nature of the signal and, providing the receiver’s input ‘floats’, rejects common-mode ac and dc interference up to at least 7V and is unaffected by earth faults on the primary element.
AC sensors, photocells, microphones and turbine flowmeters
The MTL7760ac is the recommended choice for these devices. While many of these are designated ‘simple apparatus’ and thus do not need certification, note that some ac sensors may be subject to a significant level of inductance and will therefore need to be designed and certified for hazardous-area locations.
Slidewire displacement transducers
The simplest choice is the MTL7760ac. This barrier supplies power and brings back a unipolar signal.
RTDs of MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
For 3-wire RTDs, a single MTL7755ac barrier is the most economical choice. This is suitable for use with a floating bridge – the two leads from the bridge arms are protected by the barrier with the third (supply) lead being earthed through the barrier. The barrier has a low end-toend resistance of only 19Ω/channel to minimise span changes and its channels track within 0.15Ω (between –20°C and +60°C) to minimize zero shift with temperature.
If the bridge circuit is already earthed, the third barrier channel provided by an MTL7756ac is needed. For extreme accuracy, 3 channels and an earth-free bridge can be used, a configuration that cancels out the small errors due to barrier leakage.
Channels 1 and 2 (those between terminals 1 & 2 and 3 & 4 respectively) track to within 0.15Ω (between –20°C and 60°C).
4-wire constant-current circuits do not need matched barrier resistances and can be protected by two MTL7761ac barriers. If the increase in loop resistance is too great, use two MTL7755ac barriers instead.
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
|
MTL7700 range Intrinsically Safe Zener Barriers |
|
| Product | Description |
| MTL7706+ | Shunt-Diode Safety Barrier |
| MTL7707+ | Shunt-Diode Safety Barrier |
| MTL7707P+ | Shunt-Diode Safety Barrier |
| MTL7710+ | Shunt-Diode Safety Barrier |
| MTL7715+ | Shunt-Diode Safety Barrier |
| MTL7715P+ | Shunt-Diode Safety Barrier |
| MTL7722+ | Shunt-Diode Safety Barrier |
| MTL7728+ | Shunt-Diode Safety Barrier |
| MTL7728- | Shunt-Diode Safety Barrier |
| MTL7728ac | Shunt-Diode Safety Barrier |
| MTL7728P+ | Shunt-Diode Safety Barrier |
| MTL7729P+ | Shunt-Diode Safety Barrier |
| MTL7741 | Shunt-Diode Safety Barrier |
| MTL7742 | Shunt-Diode Safety Barrier |
| MTL7743 | Shunt-Diode Safety Barrier |
| MTL7744 | Shunt-Diode Safety Barrier |
| MTL7745 | Shunt-Diode Safety Barrier |
| MTL7755ac | Shunt-Diode Safety Barrier |
| MTL7756ac | Shunt-Diode Safety Barrier |
| MTL7758+ | Shunt-Diode Safety Barrier |
| MTL7758- | Shunt-Diode Safety Barrier |
| MTL7760ac | Shunt-Diode Safety Barrier |
| MTL7761ac | Shunt-Diode Safety Barrier |
| MTL7761Pac | Shunt-Diode Safety Barrier |
| MTL7764+ | Shunt-Diode Safety Barrier |
| MTL7764ac | Shunt-Diode Safety Barrier |
| MTL7765ac | Shunt-Diode Safety Barrier |
| MTL7766ac | Shunt-Diode Safety Barrier |
| MTL7766Pac | Shunt-Diode Safety Barrier |
| MTL7767+ | Shunt-Diode Safety Barrier |
| MTL7778ac | Shunt-Diode Safety Barrier |
| MTL7779+ | Shunt-Diode Safety Barrier |
| MTL7787+ | Shunt-Diode Safety Barrier |
| MTL7787P+ | Shunt-Diode Safety Barrier |
| MTL7788+ | Shunt-Diode Safety Barrier |
| MTL7788R+ | Shunt-Diode Safety Barrier |
| MTL7789+ | Shunt-Diode Safety Barrier |
| MTL7796+ | Shunt-Diode Safety Barrier |
| MTL7796– | Shunt-Diode Safety Barrier |
| MTL7798 | Power Feed Module |
| MTL7799 | Dummy Barrier |
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
Analogue Input - 2-wire transmitters, 4-20mA conventional and 'smart' |
||||
| Power Supply | Barrier |
Loops
|
Voltage for Tx
and lines |
Main features |
| Regulated | MTL7787+ |
1 |
12.4V
|
Compatible with most smart Tx's |
| MTL7787P+ | 1 | 13.1V | Higher power, IIC gases | |
| MTL7788R+ | 1 | 13.7V | 1-5V safe area ouput | |
|
Unregulated 20 to 35V |
MTL7706+ |
1
|
15.5V
(250ohm load) |
High accuracy; compatible with most smart transmitters; full output voltage available independently of supply voltage |
| MTL7707P+ | 1 | 13.0V | Higher power, IIB gases | |
|
|
||||
Analogue Input - vibration probes |
|||
| Power Supply | Barrier |
Loops
|
Main features |
| Regulated | MTL7796– | 1 | For –24V systems |
|
|
|||
Analogue Input - gas detectors |
|||
| Power Supply | Barrier |
Loops
|
Main features |
| Nominal 6V supplies | MTL7758+ | 1 |
For high current/low voltage MTL7758+ Vwkg = 6.0V |
|
|
|||
Analogue Input - thermocouple & mV sources |
||||
| Power Supply | Barrier |
Loops
|
Max end to enc resistance per loop |
Main features |
|
Earth-free signal, receiver input floating |
MTL7760ac | 1 | 150 ohm | – |
| Moving coil or low resistance receivers | MTL7755ac | 1 | 38 ohm | – |
|
|
||||
Analogue Input - ac sensors, photocells, microphones & flowmeters |
||||
| Power Supply | Barrier |
Loops
|
Max end to enc resistance per loop |
Main features |
|
Earth-free signals up to a few kHz |
MTL7760ac | 1 | 150 ohm | – |
|
|
||||
Analogue Input - slidewire displacement transducers |
||||
| Power Supply | Barrier |
Loops
|
Vwkg | Main features |
|
For nominal 6V supplies |
MTL7760ac | 1 | 6.0V | – |
|
|
||||
Analogue Input - 2, 3 and 4-wire RTDs |
|||
| Power Supply | Barrier |
Loops
|
Main features |
| 2-wire | MTL7755ac |
1 |
2 channels track to 0.15 ohm |
| 3-wire | MTL7755ac | 2/3 | End-to-end resistance 19 ohm/channel |
| MTL7756ac | 1 | End-to-end resistance 19 ohm/channel | |
| 4-wire | MTL7755ac |
1/2
|
Needs 2 barriers |
| MTL7760ac | 1/2 | Vwkg = 6V; needs 2 barriers | |
| MTL7761ac | 1/2 | Vwkg = 6V; needs 2 barriers | |
|
|
|||
Analogue Input - strain-gauge bridges (single) |
|||
| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge |
| IIC gases |
MTL7761ac (2) + MTL7764ac (1) |
1 | 9.75V from MTL7766Pac with 20V supply |
|
|
|||
Analogue Input - strain-gauge bridges (multiple) |
|||
| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge (20V in) Number of bridges 1.............2..........3............4 |
| IIC gases |
MTL7761ac (2) + MTL7766ac (1) |
1 | 13.0........9.2.......7.7.........6,2 |
|
|
|||
Analogue Output - controller outputs (I/P converters) |
||||
| Power Supply | Barrier |
Loops
|
Volt drop at 20mA |
Main features |
| Output goes to 0V (earth return); regulated supplies | MTL7728+ |
1 |
6.8V | – |
| MTL7728P+ | 1 | 5.1V | Higher power, IIC gases | |
| MTL7729P+ | 1 | 3.7V | Higher power, IIB gases | |
| Transistor between controller output and 0V; (diode return); regulated supplies | MTL7787+ | 1 | 8.1V | – |
| MTL7787P+ | 1 | 6.4V | Higher power, IIC gases | |
| Transistor between controller output and 0V; (diode return); unregulated supplies (20 to 35V) | MTL7707+ |
1
|
8.6V | – |
| MTL7707P | 1 | 6.0V | Higher power, IIC gases | |
|
|
||||
Digital Input - switches |
|||
| Power Supply | Barrier |
Loops
|
Main features |
| Regulated | MTL7787+ | 1 | Diode return |
| MTL7787P+ | 1 | ||
| MTL7789+ | 2 | ||
|
|
|||
Digital Input - switches / proximity detectors |
|||
| Power Supply | Barrier |
Loops
|
Main features |
| Unregulated 22-35V | MTL7741 | 1 | Changeover relay output |
| MTL7742 | 1 | Transistor output, fast switching | |
| MTL7743 | 2 | 2 x relay contacts | |
| MTL7744 | 2 | 2 x transistor output | |
| MTL7745 | 1 | Single channel relay + LFD | |
|
|
|||
Digital Output - alarms, LEDs, solenoid valves, etc |
||||
| Power Supply | Barrier |
Loops
|
Usable power per loop | Main features |
| Switch in power leg, (earth return); regulated supplies | MTL7728+ |
1 |
0.48W | – |
| MTL7728P+ | 1 | 0.59W |
Higher power, IIC gases Voltage drop = 5.1V at 20mA |
|
| MTL7729P+ | 1 | 0.82W | Higher power, IIB gases | |
| Control switch on earth (diode return); regulated supplies | MTL7787+ | 1 | 0.42W | – |
| MTL7787P+ | 1 | 0.51W | Higher power, IIC gases | |
| Transistor between controller output and 0V; (diode return); unregulated supplies (20 to 35V) | MTL7707+ |
1
|
0.29W | Up to 35mA available |
| MTL7707P+ | 1 | 0.68W | Optimised for IIB gases | |
|
|
||||
Digital Input/Output - –ve and floating supplies |
|||
| Power Supply | Barrier |
Loops
|
Volts for 350 ohm bridge |
|
Regulated negative/floating power supply |
MTL7728– | 1 | – |
|
|
|||
2-wire DC/AC systems - signal returns |
||||
| System or Function | Barrier |
Loops
|
Vwkg | Main features |
| 6V dc systems | MTL7710+ |
1 |
6.0V | – |
| 8V dc system | MTL7710P+ | 1 | 8.0V |
End ot end resistance 42 ohm. 5V at 65mA from 8V supply. IIC gases |
| Low-level logic returns | MTL7764+ | 2 | 10.0V | End-to-end resistance 1050 ohms |
| 12V dc systems | MTL7715+ | 1 | 12.0V | – |
| MTL7715P+ | 1 | 12.6V | – | |
| 18V dc systems | MTL7722+ | 1 | 19.6V | – |
| 2-wire dc/ac systems | MTL7778ac | 1 | 24.0V | – |
| Signal returns | MTL7789+ |
2
|
26.6V | 2 diode return channels + power |
| Securing cables to earth for future use; terminating cable screens | MTL7799 | – | – | Bussed power feed - not certified |
MTL4500 Series Barriers MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL4501-SR, MTL4504, MTL4510, MTL4510B, MTL4511, MTL4513, MTL4514 (B)(D), MTL4516, MTL4516C, MTL4517, MTL4521, MTL4521L, MTL4523, MTL4523L, MTL4523R, MTL4523V, MTL4523VL, MTL4524, MTL4524S, MTL4525, MTL4526, MTL4531, MTL4532, MTL4533, MTL4541, MTL4541A, MTL4541AS, MTL4541B, MTL4541P, MTL4541S, MTL4541T, MTL4544, MTL4544A, MTL4544AS, MTL4544B, MTL4544D, MTL4544S, MTL4546, MTL4546C, MTL4546S, MTL4546Y, MTL4549, MTL4549C, MTL4549Y, MTL4561, MTL4575, MTL4576-RTD, MTL4576-THC, MTL4581
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL5523VL MTL5524 MTL5525 MTL5526 MTL5531 MTL5532 MTL5533 MTL5541 MTL5541AS MTL5541S MTL5544 MTL5544A MTL5544AS MTL5544D MTL5544S MTL5546 MTL5546Y MTL5549 MTL5549Y MTL5561 MTL5573 MTL5575 MTL5576-RTD MTL5576-THC MTL5581 MTL5582 MTL5599 MTL5314
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
MTL7760ac Shunt-Diode Safety Barriers MTL7760ac Zener Barriers In Stock
We are specialized in intelligent instruments, including : control system, transmitters, flow meters,sensors, recorders, analyzers, control valves, controllers, PLC's, etc.
We mainly supply Yokogawa, Emerson, Rosemount, Fisher, Honeywell, Siemens, ABB, FLUKE, Endress+Hauser, Schneider Electric, Pepperl+Fuchs, MTL, Rockwell(Allen Bradley), Hirschmann, Eaton, Moeller, FUJI, Omron, Yaskawa, Norgren, CHINT, Hach, Weidmuller, Phoenix, SMC, Testo, ASCO, Parker, Mitsubishi, Festo, GE, CISCO, Auma, IFM, GM, Turck, Bently Nevada, MOXA, Krohne, Foxboro and so on.
Why do you choose us?
1. 100% original brand product, 100% quality assurance.
If you find a fake product. Please contact us without hesitation! We afford the shipment cost! We send you a new product asking zero cent.
2. Varied payment methods.
We adopt L/C, D/A, D/P, T/T, and other methods. If you can not trust us , you can choose to pay it via Aliexpress! 100% make your money safe!
Packaging: Imported with original packaging or standard export packing.Customize design is acceptable.
Shipping: By Express(EMS,DHL,UPS,TNT, FEDEX, ARAMEX), By Air, By Sea.
Contact:
HONGKONG XIEYUAN TECH CO., LIMITED
Email:becky@hkxytech.com Web:www.hkxytech.com
Mobile:+86-15972186287(Whatsapp & Wechat)
