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6335A
 
 

6335A

 

2-wire HART transmitter

 

  • RTD, TC, Ohm, or mV input
  • Extremely high measurement accuracy
  • HART 5 protocol
  • Galvanic isolation
  • 1- or 2-channel version
  1. Overview +

  2. Technical details +

  3. Accessories +


Application

  • Linearized temperature measurement with Pt100...Pt1000, Ni100...Ni1000, or TC sensor.
  • Difference or average temperature measurement of 2 resistance or TC sensors.
  • Conversion of linear resistance variation to a standard analog current signal, for instance from valves or Ohmic level sensors.
  • Amplification of a bipolar mV signal to a standard 4...20 mA current signal.
  • Connection of up to 15 channels to a digital 2-wire signal with HART communication.

Technical characteristics

  • Within a few seconds the user can program PR6335A to measure temperatures within all ranges defined by the norms.
  • The RTD and resistance inputs have cable compensation for 2-, 3- and 4-wire connection.
  • The 6335A has been designed according to strict safety requirements and is thus suitable for application in SIL 2 installations.
  • Continuous check of vital stored data for safety reasons.
  • Sensor error detection according to the guidelines in NAMUR NE89.

Mounting / installation

  • Mounted vertically or horizontally on a DIN rail. As the devices can be mounted without any distance between neighbouring units, up to 84 channels can be mounted per metre.

Environmental Conditions

  • Operating temperature

    -40°C to +85°C

  • Storage temperature

    -40°C to +85°C

  • Calibration temperature

    20...28°C

  • Relative humidity

    < 95% RH (non-cond.)

  • Protection degree

    IP20

Mechanical specifications

  • Dimensions (HxWxD)

    109 x 23.5 x 104 mm

  • Weight (1 / 2 channels)

    145 / 185 g

  • DIN rail type

    DIN EN 60715/35 mm

  • Wire size

    0.13...2.08 mm2 AWG 26...14 stranded wire

  • Screw terminal torque

    0.5 Nm

Common specifications

  • Supply

  • Supply voltage

    8.0...35 VDC

  • Isolation voltage

  • Isolation voltage, test / working

    1.5 kVAC / 50 VAC

  • Response time

  • Response time (programmable)

    1...60 s

  • Voltage drop

    8.0 VDC

  • Warm-up time

    30 s

  • Programming

    Loop Link & HART

  • Signal / noise ratio

    Min. 60 dB

  • Accuracy

    Better than 0.05% of selected range

  • Signal dynamics, input

    22 bit

  • Signal dynamics, output

    16 bit

  • Effect of supply voltage change

    < 0.005% of span / VDC

  • EMC immunity influence

    < ±0.1% of span

  • Extended EMC immunity: NAMUR NE21, A criterion, burst

    < ±1% of span

Input specifications

  • Common input specifications

  • Max. offset

    50% of selected max. value

  • RTD input

  • RTD type

    Pt100…1000, Ni100...1000, lin. R

  • Cable resistance per wire

    5 Ω (up to 50 Ω per wire is possible with reduced measurement accuracy)

  • Sensor current

    Nom. 0.2 mA

  • Effect of sensor cable resistance (3-/4-wire)

    < 0.002 Ω / Ω

  • Sensor error detection

    Yes

  • Linear resistance input

  • Linear resistance min....max.

    0 Ω...7000 Ω

  • TC input

  • Thermocouple type

    B, E, J, K, L, N, R, S, T, U, W3, W5

  • Cold junction compensation (CJC)

    < ±1.0°C

  • Sensor error detection

    Yes

  • Sensor error current: When detecting / else

    Nom. 33 μA / 0 μA

  • Voltage input

  • Measurement range

    -800...+800 mV

  • Min. measurement range (span)

    2.5 mV

  • Input resistance

    10 MΩ

Output specifications

  • Current output

  • Signal range

    4…20 mA

  • Min. signal range

    16 mA

  • Load (@ current output)

    ≤ (Vsupply - 8) / 0.023 [Ω]

  • Load stability

    ≤ 0.01% of span / 100 Ω

  • Sensor error indication

    Programmable 3.5…23 mA

  • NAMUR NE43 Upscale/Downscale

    23 mA / 3.5 mA

  • Common output specifications

  • Updating time

    440 ms

  • of span

    = of the presently selected range

Observed authority requirements

  • EMC

    2014/30/EU

  • EAC

    TR-CU 020/2011

Approvals

  • ATEX 2014/34/EU

    KEMA 10ATEX0006 X

  • IECEx

    KEM 10.0084X

  • SIL

    Hardware assessed for use in SIL applications

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