MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputs

 MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputs

 MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputsfrom a switch, proximity detector, current pulse transmitter or voltage pulse transmitter located in a hazardous area. It is ideal for applications involving high pulse rates and fast response times, by repeating the pulses into the safe area. An analogue output proportional to frequency is also provided, together with a relay output, which may be configured to act as an alarm. Configuration is carried out with a personal computer.

 MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputs
SPECIFICATION
See also common specification
Number of channels
    One, fully floating
Sensor type
    Switch or proximity detector (NAMUR/BS EN 60947–5–6:2001)
    2– or 3–wire voltage or pulse transmitter
Location of switch
    Zone 0, IIC, T6 hazardous area
    Div. 1, Group A, hazardous location
Location of proximity detector or transmitter
    Zone 0, IIC, T4–T6 if suitably certified
    Div.1, Group A, hazardous location

 MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputs
Input
    Switch input:
    Output ON if switch is closed
    Proximity detector input:
    Excitation: 7.0 to 9.0V dc from 1kΩ nominal
    Output ON if input > 2.1mA* (< 2kΩ)
    Output OFF if input < 1.2mA* (> 10kΩ)
    Switching hysteresis: 0.2mA (650Ω) nominal
    *NAMUR and BS EN 60947–5–6:2001standards
    Current pulse input:
    Transmitter supply: 16.5V dc at 20mA
    Short circuit current: 24mA
    Output: Iin > 9.0mA = ON, Iin < 7.0mA = OFF
    Switching hysteresis: 0.5mA
    Voltage pulse input
    Input impedance: > 10kΩ
    Switching point voltage (Vsp): 3, 6, or 12V nominal
    (User selectable by switches on the side of the module)
    Output: Vin > Vsp = ON, Vin < Vsp = OFF
    Switching hysteresis: 100mV + (0.1 x Vsp) typical
Safe-area pulse output
    Maximum delay: 10µs
    Maximum off–state voltage: 35V
    Maximum off–state leakage current: 10µA
    Maximum on–state resistance: 25Ω
    Maximum on–state current: 50mA
    Output OFF if supply fails
    Note: LFD signal is Zener-diode protected against inductive loads
Safe-area current output
    Input capture delay: 2 signal periods (5ms min.)
    Signal range: 4 to 20mA
    Under/over range: 0 to 22mA
    Load resistance: 0 to 450Ω @20mA
    Output resistance: >1MΩ
    Ripple: < 50µA peak-to-peak
    Accuracy: better than 20µA at 20°C
    Temperature drift: < 1µA/°C
    Risetime (10% - 90%, after step change): 60 ms
Alarm output
    Relay ON in alarm, 0.5A @ 35Vdc max
Pulse width
    High: 10µs min
    Low: 10µs min
Frequency range
    0 – 50kHz - pulse output mode
    0 – 10KHz - for analogue output
LED indicators
    Green: power indication
    Yellow: on when output circuit is on
    Red: flashing when line fault or error
Power requirement
    65mA at 24V dc
    70mA at 20V dc
    55mA at 35V dc
Power dissipation within unit
    1.35W maximum at 24V
    1.75W maximum at 35V
Safety description (Um = 253V rms or dc)
    Terminals 2 to 1 and 6 to 1
    Uo=10.5V Io=14mA Po=37mW
    Terminals 4 to 3 and 1
    Uo=28V Io=93mA Po=651mW
    Terminals 3 to 1
    Non-energy-storing apparatus ≤1.5V, ≤0.1A and ≤25mW; can be
    connected without further certification into any IS loop with an     opencircuit voltage <28V
    Terminals 5 to 4 and 1
    Vmax ≤ 28V, Imax ≤ 94mA, Pmax ≤ 0.66W
Configurator
    A personal computer running MTL PCS45 software with a
    PCL45USB serial interface.
 MTL5532 PULSE ISOLATOR Pulse & 4/20mA Current Outputs