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Home ProductsMTL Safety Barriers&Isolators

MTL7789+

MTL7789+

MTL7789+

Product Details:

Place of Origin: UK
Brand Name: MTL
Model Number: MTL7789+

Payment & Shipping Terms:

Minimum Order Quantity: 5 pcs
Price: according to the purchase quantity
Packaging Details: carton
Delivery Time: in stock
Payment Terms: T/T payment
Supply Ability: 100pcs
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Detailed Product Description

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

 

Contact Details
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Contact Person: Ms. Steven

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