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MTL5546/Y Safe Isolators Isolating Driver HART Valve Positio

description:The MTL5546 accepts a 4/20mA floating signal from a safe-area controller to drive a current/pressure converter (or any other load up to 800ohm) in a hazardous area...
BASIC INFO
 
MTL5546/Y Safe Isolators Isolating Driver for 4/20mA HART Valve Positioners with Line Fault Detection



The MTLx546 accepts a 4/20mA floating signal from a safe-area controller to drive a current/pressure converter (or any other load up to 800ohm) in a hazardous area. For HART valve positioners, the module also permits bi-directional transmission of digital communication signals. Process controllers with a readback facility can detect open or short circuits in the field wiring: if these occur, the current taken into the terminals drops to a preset level. The MTL4546C and the MTLx546Y are very similar to the MTLx546 except that they provide open circuit detection only (i.e. no short-circuit detection).
 
 
SPECIFICATION
See also common specification
Number of channels
One
Location of I/P converter
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div. 1, Group A, hazardous location
Working range
4 to 20mA
Digital signal bandwidth
500Hz to 10kHz
Maximum load resistance
800ohm (16V at 20mA)
Minimum load resistance
90ohm (short-circuit detection at < 50ohm)
Output resistance
> 1Mohm
Under/over range capability
Under range = 1mA
Over range = 24mA (load ≤ 520ohm)
Input and output circuit ripple
< 40µA peak-to-peak
Transfer accuracy at 20°C
Better than 20µA
Temperature drift
< 1.0µA/°C
Response time
Settles within 200µA of final value within 100ms
Communications supported
HART
LED indicator
Green: power indication
Maximum current consumption (with 20mA signals into 250ohm load)
35mA at 24V dc
Power dissipation within unit (with 20mA signals into 250ohm load)
0.8W at 24V
 

 

 

 

 
 
 
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-----------------------------------
Lily
 
HONGKONG XIEYUAN TECH CO., LIMITED
 
T: 86-027-85581877 F: 86-027-85309780 
Mail:lily@whxyauto.com 
Ad: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan, Hubei, China
Web: www.hkxytech.com
 

 

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