Riken Keiki SD-3 Series Operating Manual
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Riken Keiki SD-3 Series Operating Manual

Riken Keiki SD-3 Series Operating Manual

Gas detector with signal converter
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PT2E-3011
Gas Detector with Signal Converter
SD-3 Series
Operating Manual
2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan
Website: https://www.rikenkeiki.co.jp/

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  • Page 1 PT2E-3011 Gas Detector with Signal Converter SD-3 Series Operating Manual 2-7-6 Azusawa, Itabashi-ku, Tokyo, 174-8744, Japan Website: https://www.rikenkeiki.co.jp/...

  • Page 2: Table Of Contents

    Contents Contents Product Overview ..............................4 1-1 Introduction ..............................4 1-2 Intended use and features .......................... 6 1-2-1 Models and Codes ........................... 6 1-2-2 Detection principles and detection target gases for individual models ........... 7 1-2-3 Product features ..........................8 1-3 Usage zones and conditions ........................
  • Page 3 Contents Usage Instructions .............................. 78 5-1 Preparations for startup ..........................78 5-2 Startup ............................... 79 5-3 Basic operation flow ..........................81 5-4 Operating procedure ..........................82 5-5 User mode ..............................83 5-5-1 User mode setting items ........................ 83 5-5-2 Switching to user mode ......................... 84 5-6 Performing zero calibration ........................

  • Page 9: Product Overview

    1. Product Overview 1-3 Usage zones and conditions 1-3 Usage zones and conditions The product is approved for use in areas where gases classified in explosive gas groups IIA, IIB, or IIC may be present. This refers to use limited to hazardous zones categorized as Zone 1 or Zone 2 within the product operating temperature range.

  • Page 10: Danger, Warning, And Note

    1. Product Overview 1-4 DANGER, WARNING, and NOTE 1-4 DANGER, WARNING, and NOTE This operating manual uses the following categories to indicate potential damage/hazards if the user disregards the information provided and uses the product incorrectly: This indicates situations in which improper handling may result in fatal or DANGER serious injury or significant property damage.

  • Page 11: Important Safety Information

     Do not attempt to repair or replace the explosion-proof bonding surface. If you observe scratches, cracks, or deformation on the housing or explosion-proof bonding surface, stop using the product immediately and contact Riken Keiki promptly. 2-2 Warning information WARNING ...

  • Page 12: Caution Information

    2. Important Safety Information 2-3 Caution information 2-3 Caution information CAUTION  The product operation may be affected by radio waves emitted from walkie-talkies or other radio transmitters used near the product or its cables. Position walkie-talkies or other similar devices so that they do not affect the product operation.

  • Page 18: Safety Information

    2. Important Safety Information 2-4 Safety information ・ The client should not try to replace the batteries. <Applicable standards>  IEC 60079-0:2017  IEC 60079-1:2014  IEC 60079-11:2011  EN IEC 60079-0:2018  EN 60079-1:2014  EN 60079-11:2012 <Operating manual no.> ...
  • Page 22  Do not disassemble, modify, or alter the product.  Contact Riken Keiki to request readjustment or parts replacement including calibration.  Use cable lugs for grounding wire and bonding conductor connections. Make sure the bonding conductors are not loose or twisted.
  • Page 29 2. Important Safety Information 2-4 Safety information <Screw holes on rear of container (SD-3)> Four screw holes are located on the rear of the main unit container. • Screw size: M5 • Pitch: 0.8 • Screw depth: 5 • Maximum allowable length of male screw: Lmax = 4.2 mm + x (“x”...

  • Page 30: Product Configuration

    3-1 Main unit and accessories Product Configuration 3-1 Main unit and accessories Open the box and packaging and inspect the main unit and accessories. If anything is missing, contact Riken Keiki. 3-1-1 Main unit (SD-3) <Diffusion type> <Model without EC barrier>...

  • Page 31: Main Unit (Sd-3Sc)

    3. Product Configuration 3-1 Main unit and accessories 3-1-2 Main unit (SD-3SC) 3-1-3 Remote sensor head (GD-3) <Diffusion type> <Model without EC barrier> <Model with EC barrier> 31 / 105...

  • Page 39: Installation

    4. Installation 4-1 Installation precautions Installation 4-1 Installation precautions Selecting an appropriate installation location is vital for system performance. Be sure to observe the following precautions before installing. Failure to comply with these precautions may result in failure of the product or improper function. CAUTION ...
  • Page 43 4. Installation 4-1 Installation precautions CAUTION  A de-energized b contact (break contact) may result in momentary opening in the event of an external force or other physical impact. If a b contact is used as an alarm contact, implement measures to account for such momentary operations—for example, by adding a delay operation (of approximately one second) to the signal on the b contact receiving side.

  • Page 46: Providing Maintenance Space

    4. Installation 4-3 Providing maintenance space CAUTION The product requires periodic maintenance. Do not install in the following or similar locations where maintenance is dangerous or not possible:  Locations such as within systems that must be stopped for maintenance ...

  • Page 54: Remote Sensor Head (Gd-3) Installation

    4. Installation 4-5 Remote sensor head (GD-3) installation Insert the remote sensor head (GD-3) into the duct Duct mounting kit mounting kit and secure with four M5 bolts. Connect a tube to the sensor on the remote sensor head (GD-3) to enable calibration. The tube should protrude from the top of the duct mounting kit.

  • Page 57: Connecting The Power And Signal Cables

    4. Installation 4-7 Connecting the power and signal cables NOTE  Use the approved cable glands when connecting the remote sensor head (GD-3).  Up to two external cable connectors can be used at the same time (excluding the remote sensor head (GD-3) connector cable).
  • Page 63 4. Installation 4-7 Connecting the power and signal cables Rotate the cover clockwise to attach and secure with the single M4 hex socket set screw. Hex key wrench Use a hex key wrench (2 across flats) to tighten the M4 hex socket set screw.

  • Page 73: Alarm Relay Setting (Option)

    4. Installation 4-9 Alarm relay setting (option) Confirm that the sensor is fully inserted. Sensor Sensor is not fully inserted. Attach the sensor guard to the main unit. Attach using a hex key wrench (8 across flats) or wrench. Use the single M4 hex socket set screw to secure the sensor guard in place.

  • Page 80: Usage Instructions

    5. Usage Instructions 5-2 Startup CAUTION  Never turn off the power while initialization is underway. The internal memory is read during initialization.  A specific warmup is required for each sensor type at startup and after sensor replacement. Allow the product to warm up for the specified time.

  • Page 82: Operating Procedure

    5. Usage Instructions 5-4 Operating procedure 5-4 Operating procedure The product is operated using the control key. Use the control key to touch the four keys (MENU/ESC key, SET key, ▲ key, and ▼ key) on the front of the product.

  • Page 84: User Mode

    5. Usage Instructions 5-5 User mode 5-5-2 Switching to user mode Hold down the MENU/ESC key (for approximately three seconds) in detection mode. The product switches to user mode. Press the ▲ or ▼ key to select the required item number, then press the SET key.

  • Page 85: Performing Zero Calibration

    5. Usage Instructions 5-6 Performing zero calibration 5-6 Performing zero calibration This performs the zero calibration required to ensure accurate measurement of gas concentrations. Prepare the zero calibration gas, then connect to the product before starting zero calibration. For information on zero calibration preparation, refer to ‘7-4-1 Calibration preparation’ in the Technical manual. WARNING ...
  • Page 86 5. Usage Instructions 5-6 Performing zero calibration NOTE  If zero calibration is unsuccessful because the zero point ([20.9] (vol%) in the case of oxygen) fluctuates significantly around zero, [FAIL] is displayed before the display returns to [1-1]. If this occurs, zero calibration was not performed.

  • Page 88: Checking Settings

    5. Usage Instructions 5-7 Checking settings ・ Second alarm setpoint display Displays the second alarm setpoint. ・ Alarm delay time Displays the alarm delay time (in seconds). ・ Zero suppression value display Displays the positive side suppression value. ・ Zero follower ON/OFF display Displays whether the zero follower setting is on or off.

  • Page 89: Shutting Down

    5. Usage Instructions 5-8 Shutting down 5-8 Shutting down To shut down product operation, turn off the power supply (24 V DC) while in detection mode. WARNING  Shutting down product operation may activate an alarm in an upstream (central) system. ...

  • Page 92: Storage, Relocation, And Disposal

    CAUTION  Calibration must always be performed before resuming use of the product that has been relocated or previously stopped and stored. Contact Riken Keiki for information on readjustment procedures, including calibration. 6-3 Product disposal Dispose of the product as industrial waste (incombustible) in accordance with local regulations.

  • Page 97: Product Specifications

    8. Product Specifications 8-1 Detection target gases for individual detection principles pressure characteristics and in some cases may exceed the zero suppression value due to sensor characteristics.)  For ethylene or butadiene to which the product has low gas sensitivity, set the alarm setpoint to 25 %LEL or higher.

  • Page 104: Product Warranty

    4. Fees will be charged for repairs in the following cases, even during the warranty period: (a) Fault or damage is attributable to incorrect use or improper repairs or modifications. (b) Fault or damage following repairs or modifications made at locations other than Riken Keiki or a service agent specified by Riken Keiki.

This manual is also suitable for:

Sd-3Sd-3scSd-3nc

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