MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER

MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER

MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER

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 800Ω) in
a hazardous area. MTL5546 For HART valve positioners,MTL5546 the module also permits bi-directional transmission of digital communication signals. Process controllers MTL5546

with a readback facility can MTL5546 detect open or short circuits in the field wiring: if these occur, the current taken into the MTL5546 terminals drops to a preset level. The MTL4546C and the MTLx546Y are very similar to the MTL5546 except that they provide open circuit detection only (i.e. no short-circuit).

MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER

SPECIFICATION
See also common specification
Number of channels MTL5546
One MTL5546
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

MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER
Digital signal bandwidth
500Hz to 10kHz
Maximum load resistance
800Ω (16V at 20mA)
Minimum load resistance
90Ω (short-circuit detection at < 50Ω)
Output resistance
> 1MΩ

MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER
Under/over range capability
Under range = 1mA MTL5546
Over range = 24mA (load ≤ 520Ω)
Input and output circuit ripple
< 40µA peak-to-peak
Transfer accuracy at 20°C
Better than 20µA
Temperature drift
< 1.0µA/°C
MTL5546 ISOLATING DRIVER MTL 5546 ISOLATING DRIVER

MTL4546C
MTL4546Y
MTL5546
MTL5546Y