Riken Keiki SD-D58-AC-GH Operating Manual
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Riken Keiki SD-D58-AC-GH Operating Manual

Smart transmitter/gas detector head
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PT2E-1758
Smart Transmitter/Gas Detector Head
SD-D58・AC・GH
SD-D58・DC・GH
Operating Manual

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Summary of Contents for Riken Keiki SD-D58-AC-GH

  • Page 1 PT2E-1758 Smart Transmitter/Gas Detector Head SD-D58・AC・GH SD-D58・DC・GH Operating Manual...
  • Page 2 Operating Precautions This detector is a gas detector that detects combustible gases in the air and triggers a gas alarm. The gas detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative analysis/measurement for gases. Please fully understand the following points before using it, so that it can be used properly. This detector may be interfered by gases and vapors other than the gas to be detected.

  • Page 3: Table Of Contents

    <Contents> Outline of the Product ....................1 1-1. Preface ........................1 1-2. Purpose of use ......................1 1-3. Definition of DANGER, WARNING, CAUTION, and NOTE ........2 1-4. Method of confirmation for Standards and Explosion proof specification ....2 Important Notices on Safety ..................3 2-1.

  • Page 5: Outline Of The Product

    1 Outline of the Product 1-1. Preface Outline of the Product 1-1. Preface Thank you for choosing our smart transmitter/gas detector head SD-D58 series. Please check that the model number of the product you purchased is included in the specifications on this manual. This manual explains how to use the detector head and its specifications.

  • Page 10: Safty Information

    2-4. Safety Information 2-4. Safety Information Necessary information for explosion proof construction of Model SD-D58・AC・GH／SD-D58・DC・ The Model SD-D58・AC・GH／SD-D58・DC・GH is a fixed mount, continuous-monitoring detector head and provides a 4-20mA signal which indicates the target gas reading for use by a gas monitoring controller, recording device, or programmable controller.
  • Page 11 2-4. Safety Information <Taiwan Ex(TS) Specifications> Technical Data (Protection Method) Flameproof enclosure (Explosion-proof class) Ex d ⅡB+H2 T4 Gb (Ambient Temperature) Type AC : -20C to 50C Type DC : -20C to 53C (Electrical Data) Supply voltage : Type AC : AC100～110V 50/60Hz 120mA Type DC : DC24V 360mA Electrical rating : DC6.5V 205mA or DC3.5V 350mA...
  • Page 12 2-4. Safety Information <Japan Ex Specifications> Technical Data (Protection Method) Flameproof enclosure (Explosion-proof class) Ex d ⅡB+H2 T4 (Ambient Temperature) Type AC : -20C to 50C Type DC : -20C to 53C (Electrical Data) Supply voltage : Type AC : AC100～110V 50/60Hz 120mA Type DC : DC24V 360mA Electrical rating : DC6.5V 205mA or DC3.5V 350mA...

  • Page 16: Names And Functions For Each Part

    3-2. Names and functions for each part <Inside of the main unit> (Electric circuit section) (1) Terminal plate (5) Fuse (for power input supply) (2) Terminal plate (for contact and transmission output) (3) Power switch (4) Grounding terminal Terminal plate Power input terminal plate.
  • Page 18 The bolt with the hexagon socket must use the stainless steel material of property class "A2-70".  Grease specified by RIKEN KEIKI : BARRIERTA JFE 552 (manufactured by NOK KLUBER) If you can not prepare the specified grease, use one that meets the following requirements.

  • Page 25: How To Install

     Tighten the hexagon socket head cap bolt fixing the lid and the main body with a tightening torque of 215.6 ±24.5N･cm.  When closing the lid of the detector, make sure that there is no dust on screw, surfaces of the main body and lid. Then apply grease as specified by RIKEN KEIKI. SD-D58 Series...

  • Page 37: How To Operate

    5-1. Preparation for start-up How to Operate 5-1. Preparation for start-up Before supplying power, read and understand the following precautions. Ignoring these precautions may cause an electric shock or damage the detector head.  Connect the detector head to a grounding circuit. ...

  • Page 44: Operations And Functions

    6-1. Gas alarm activation Operations and Functions 6-1. Gas alarm activation Gas alarm: Triggered when the concentration of detected gas reaches or exceeds the alarm setpoint value. <<Auto-Reset>> NOTE The alarm setpoint is factory-set. Although the alarm delay time (standard: 2 seconds) works in the detector head to prevent a false activation, it can be cancelled if not needed.

  • Page 45: Fault Alarm Activation

    After the detector head is successfully returned from the fault, it restarts with the process normally performed right after it is turned on (initial clear). If the detector head has problems and is repeatedly malfunctioning, contact RIKEN KEIKI immediately. NOTE For information on malfunctions (error messages), see "9.

  • Page 48: Maintenance

    7-1. Maintenance intervals and items Maintenance The detector head is an important instrument for the purpose of safety. To maintain the performance of the detector head and improve the reliability of safety, perform a regular maintenance. Continuing to use the detector head without performing a maintenance will compromise the sensitivity of the gas sensor, thus resulting in inaccurate detection.
  • Page 49 7-1. Maintenance intervals and items  The followings are typical maintenance services. For more information, please contact RIKEN KEIKI. Main services Power supply Checks the power supply voltage. check Verifies that the power lamp lights up. (Verifies that relevant points can be identified on the system.) (When a UPS (uninterruptible power system) is used, checks the operation with the UPS.)

  • Page 51: Maintenance Mode (Regular Maintenance)

    7-2. Maintenance mode (Regular maintenance) User mode In "1-3.", press the SET key.  Then hold down the SET key again for three seconds.  While the ESC key is pressed, the LED displays "..". Regular maintenance mode  2-0. Test mode Test mode Performs various tests.
  • Page 52 7-2. Maintenance mode (Regular maintenance) Flow sensor setting 2-6. Flow sensor setting  P57 Sets the flow sensor functions. "2-6.0," "2-6.5" to "2-6.6," and "2-6.8" to "2-6.9" are factory- set. They are not typically used by the user. 2-7. Flow sensor setting display Displays settings of the flow sensor.
  • Page 56 7-2. Maintenance mode (Regular maintenance) <Memory Test "2-0.4"> 2-0.4 Press the SET key. When StA. is displayed, press the SET key again. When CAL. is displayed, the memory diagnosis is performed. When memory is correct as a result of the diagnosis, PASS is displayed.
  • Page 57 7-2. Maintenance mode (Regular maintenance) <Environmental Setting "2-4"> Set various operations and functions in the environmental setting. <<Environmental Setting 1>> 2-4. Environmental setting Press the SET key. 2-4.0 They are factory-set and not typically used by the user. 2-4.1 INHIBIT setting Set Inhibit.

  • Page 64: How To Maintain Flow Sensor

    7-4. How to maintain flow sensor 7-4. How to maintain flow sensor Remove the pump. 2-6.3 Flow sensor zero point check Press the SET key. Flow sensor zero point check completed It automatically returns to 2-6.3 after PASS is displayed. * If the zero point check of the flow sensor fails, it automatically returns to 2-6.3 after FAIL is displayed.

  • Page 65: Parts Replacement

    The gas calibration using the standard gas is required after the sensor is replaced. The zero adjustment is required after the flow sensor is replaced. Please make a request to RIKEN KEIKI. <Replacement of Regular Replacement Parts> List of recommended regular replacement parts...

  • Page 67: Troubleshooting

    This simply helps to find the causes of malfunctions which frequently occur. If the detector head shows a symptom which is not explained in this manual, or still has malfunctions even though remedial actions are taken, please contact RIKEN KEIKI. <Abnormalities on Unit>...
  • Page 68 <Abnormalities of Readings> Symptoms Causes Actions Drifting of sensor Perform the zero adjustment. output Disturbances by interference gases, such as solvents, Presence of cannot be eliminated completely. For information on interference gas actions, such as removal filter, please contact RIKEN KEIKI.

  • Page 69: Product Specifications

    10-1. List of specifications Product Specifications 10-1. List of specifications [SD-D58・DC・GH] ＜ATEX Specifications＞ Model SD-D58・DC・GH Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate...
  • Page 70 10-1. List of specifications Tube connecting port Rc1/8 (O.D8-1t half-union for Cu tube <Bs> supplied or half-union for SUS tube <SUS>) Operating temperature -20 - +53ºC (Non-rapidly-vary) Operating humidity Below 95% RH (Non-condensing) Structure Wall mounting type (2B<50A> pipe installation supported) Explosion-proof structure Flame-proof enclosures Explosion-proof class...
  • Page 71 10-1. List of specifications [SD-D58・DC・GH(TYPE H)] ＜ATEX Specifications＞ Model SD-D58・DC・GH Type TYPE H Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate 1.0 L/min or more (at maximum suction pressure of 5.0 kPa <gauge pressure>)
  • Page 72 10-1. List of specifications [SD-D58・AC・GH] ＜Taiwan Ex(TS) Specifications＞ Model SD-D58・AC・GH Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate 1.5 L/min or more (at maximum suction pressure of 5.3 kPa <gauge pressure>) Alarm setpoints Depend on detection gas...
  • Page 73 10-1. List of specifications [SD-D58・AC・GH(TYPE H)] ＜Taiwan Ex(TS) Specifications＞ Model SD-D58・AC・GH Type TYPE H Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate...
  • Page 74 10-1. List of specifications [SD-D58・DC・GH] ＜Taiwan Ex(TS) Specifications＞ Model SD-D58・DC・GH Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate 1.0 L/min or more (at maximum suction pressure of 5.0 kPa <gauge pressure>) Alarm setpoints Depend on detection gas...
  • Page 75 10-1. List of specifications [SD-D58・DC・GH(TYPE H)] ＜Taiwan Ex(TS) Specifications＞ Model SD-D58・DC・GH Type TYPE H Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate...
  • Page 76 10-1. List of specifications [SD-D58・AC・GH] ＜Japan Ex Specifications＞ Model SD-D58・AC・GH Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate 1.5 L/min or more (at maximum suction pressure of 5.3 kPa <gauge pressure>) Alarm setpoints Depend on detection gas...
  • Page 77 10-1. List of specifications [SD-D58・AC・GH(TYPE H)] ＜Japan Ex Specifications＞ Model SD-D58・AC・GH Type TYPE H Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate...
  • Page 78 10-1. List of specifications [SD-D58・DC・GH] ＜Japan Ex Specifications＞ Model SD-D58・DC・GH Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate 1.0 L/min or more (at maximum suction pressure of 5.0 kPa <gauge pressure>) Alarm setpoints Depend on detection gas...
  • Page 79 10-1. List of specifications [SD-D58・DC・GH(TYPE H)] ＜Japan Ex Specifications＞ Model SD-D58・DC・GH Type TYPE H Detection principle Semiconductor type Detection gas Combustible gas / toxic gas Display Seven-segment LED (four-digit) Detection range Depend on detection gas Resolution Depend on detection gas Detection method Sample-drawing Flow rate...

  • Page 81: Definition Of Terms

    Definition of Terms This is a principle of the sensor installed in the detector. Semiconductor See "10-2. Detection principle" for details. Output from the detector head fluctuates for a while after turning on the power. Initial clear This is a function to prevent triggering alarm during that time. Full scale Maximum value of the detection range.

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