Mantracourt ALA5 User Manual

2-wire 4-20ma atex load cell amplifier

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ALA5 2-Wire 4-20mA ATEX
Load Cell Amplifier
ICA5ATEX Strain Gauge or Load Cell Analogue Amplifier Mounted Inside
an In-Line Stainless Steel Enclosure (ILEATEX)
User Manual
MICRON METERS
www.micronmeters.com
metersinfo@micronmeters.com

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Summary of Contents for Mantracourt ALA5

  • Page 1 ALA5 2-Wire 4-20mA ATEX Load Cell Amplifier ICA5ATEX Strain Gauge or Load Cell Analogue Amplifier Mounted Inside an In-Line Stainless Steel Enclosure (ILEATEX) User Manual MICRON METERS www.micronmeters.com metersinfo@micronmeters.com...
  • Page 2: Table Of Contents

    Standard cable: ........................... 3 Table 1 ............................. 3 Cable colour code: ........................4 Alternative Cable types ........................4 Figure 2.1 Connection Details for the ALA5 ..................4 Output Connections ........................5 Output Shunt Resistance Formula ..................... 5 Chapter 3: Calibration ........................5 Chapter 4: Changing the Gain and Offset Ranges.................
  • Page 3: Chapter 1 The Ala5

    Chapter 1 The ALA5 The ALA5 is an ATEX certified (intrinsic safety) 2-wire 4-20mA amplifier providing a wide range of signal conditioning for Strain Gauges, Load Cells, Pressure and Torque Transducers. Combining the ICA5ATEX miniature loadcell amplifier with the stainless steel ILEATEX enclosure produces a compact, robust and certified in-line amplifier suitable for use in zones 0, 1, and 2 in hazardous locations.
  • Page 4: Connections

    The ALA5 is supplied pre-wired with 2-core screened cable for the supply/signal and 4-core screened cable for the loadcell connections. If installing into a hazardous zone, the ALA5 must be connected via an approved ATEX Barrier with the following parameters: Uo = 28V, Io = 100mA, Po = 0.7W, Barrier Impedance 300Ω.
  • Page 5: Cable Colour Code

    The ALA5 is supplied with a 1m input cable and a 5m output cable. If the cables are too short for a particular installation, they can be replaced with longer lengths or joined provided that an ATEX approved junction box is used and the conditions set out below are satisfied.
  • Page 6: Output Connections

    Max shunt resistance = ((24 - 9) / 0.02) –10 = 740 Ohms Chapter 3: Calibration In order to calibrate the ALA5 the cover of the enclosure must be removed as follows: Mechanical tools required: 1.5mm hex key, 14mm AF spanner and flat-blade screwdriver, maximum width 1.5mm.
  • Page 7: Chapter 4: Changing The Gain And Offset Ranges

    16mA for 4-20mA final calibration with 75% input or 20mA if 100% input. When re-assembling the ALA5 it is imperative that the ‘O’ is fitted correctly and the cable gland re-tightened to maintain a gas-tight seal.
  • Page 8: Calculating The Gain Resistor (R2)

    IMPORTANT: OEM customers must hold a notified body Quality Assurance Notification (QAN) if the ICA5ATEX is to be installed into a Mantracourt ATEX approved ‘generic’ enclosure. If installed into a non-ATEX approved enclosure, the whole assembly must be submitted for ATEX certification by an appropriate body.
  • Page 9: The Ica5Atex Connections

    1 x M2 cylindrical spacer  M2 x 12mm cap screw  Cover Ensure that the ‘O’ ring is fitted to the body. Please refer to Appendix A – ‘Special conditions of safe use’ Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 10: Chapter 6: Specifications

    Stainless steel type 304 Body material Stainless steel type 316 or 17-4 Threaded entries PG7 / 20 TPI Cable entries PG7 EMC glands (e.g. Jacob 50.007/EMV 14mm AF) Environmental rating IP67 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 11: Environmental Approvals

    PCB tracks must maintain a minimum 0.2mm separation distance to the enclosure wall. Schedule of limitations: ILEATEX Component: PCB tracks must maintain a minimum separation distance to the enclosure wall as required by the amplifier ATEX approval. Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 12: Atex Marking

    Equipment category: very high protection Hazard: gas atmosphere - zones 0,1 and 2 Certification Code details Explosion protection Intrinsic safety according to EN60079-11 (previously EN 50020) Hydrogen/Acetylene gas group Temperature Classification – surface temperature <135°C Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 13: Eu Declaration Of Conformity

    Ex ia IIC T4 Name and position of person binding the manufacturer or authorised representative: Signature: Name: Mr Brett James Function: Design Manager Location: Mantracourt Electronics Ltd Date of issue: April 2016 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 14: Eu Attestation Of Conformity

    ATEX Directive (2014/34/EU). Name and position of person binding the manufacturer or authorised representative: Signature: Name: Mr Brett James Function: Design Manager Location: Mantracourt Electronics Ltd Date of issue: April 2016 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 15: Eu Attestation Of Conformity

    ATEX Directive (2014/34/EU). Name and position of person binding the manufacturer or authorised representative: Signature: Name: Mr Brett James Function: Design Manager Location: Mantracourt Electronics Ltd Date of issue: April 2016 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 16: Ala5 Certificate

    ALA5 Certificate: Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 17 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 18 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 19 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 20: Ica5Atex Certificate

    ICA5ATEX Certificate: Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 21 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 22 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 23 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 24 ILEATEX Certificate: Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 25 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 26 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 27 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...
  • Page 28 In the interests of continued product development, Mantracourt Electronics Limited reserves the right to alter product specifications without prior notice. Doc No. 517-918 Issue 1.5a 12.05.16 Mantracourt Electronics Limited ALA5, ILEAtex and ICA5Atex User Manual...

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