Related Manuals for Riken Keiki SD-1GH
Summary of Contents for Riken Keiki SD-1GH
- Page 1 PT2E-16910 Smart Transmitter/Gas Detector Head SD-1GH Operating Manual (PT2E-169) (PT2-169)
- 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.
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Page 3: Table Of Contents
Procedures to relocate the detector or use it again ............. 47 8-3. Disposal of products ....................47 Troubleshooting ......................48 Product Specifications ....................50 10-1. List of specifications ..................... 50 10-2. List of accessories ....................... 53 10-3. Detection principle ....................... 54 Definition of Terms ......................55 SD-1GH - 1 -... -
Page 4: Outline Of The Product
Outline of the Product 1-1. Preface Thank you for choosing our smart transmitter/gas detector head SD-1GH. 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 and its specifications. It contains information required for using the detector properly. -
Page 6: Important Notices On Safety
The explosion protection conditions for the detector is "low (2J)" possibility of mechanical damage. Do not replace parts at your sole discretion but contact RIKEN KEIKI if the transparent window has a crack or the explosion-proof joint surface is abnormal, or the clamping screw or bolt is changed, lost etc. -
Page 7: Warning Cases
If other gases exist, the adjustment cannot be performed properly, thus leading to dangers when the gas leaks. Response to gas alarm Issuance of a gas alarm indicates that there are extreme dangers. Take proper actions based on your judgment. SD-1GH - 5 -... -
Page 8: Precautions
Since this is a safety unit, a regular maintenance must be performed to ensure safety. Continuing to use the detector without performing a maintenance will deteriorate the sensitivity of the sensor, thus resulting in inaccurate gas detection. SD-1GH - 6 -... -
Page 11: Product Components
3 Product Components 3-1. Main unit and standard accessories Product Components 3-1. Main unit and standard accessories <Main Unit> (including a cable gland) 【ATEX/IECEx Specification】 【TIIS Specification】 SD-1GH - 9 -... -
Page 12: Names And Functions For Each Part
Concentration value display Displays the gas concentration and so on. CAUTION Use the supplied dedicated control key to operate the detector. If products other than these accessories are used, key operations cannot be accepted properly. SD-1GH - 10 -... -
Page 13: Block Diagram
Gas alarm contact (ALARM) Magnetic operation part Contact activation (MENU/ESC) (▲) (▼) (SET) • De-energized (De-energized at a normal environment) • ON-ALARM (Closed contact at an alarm time) Sensor Transmitter • 4 – 20 mA transmission SD-1GH - 11 -... -
Page 14: How To Use
Condensation may be formed inside the detector, or the detector cannot adjust to sudden changes in the temperature. Keep the detector (and its cables) away from noise source devices. When selecting installation points, avoid a place where high-frequency/high-voltage devices exist. SD-1GH - 12 -... -
Page 15: Precautions For System Designing
UPS outside the restart the detector.) detector. Example of actions Do not use it with a power supply of Others large power load or high-frequency Use a line filter to avoid the noise source noise. if necessary. SD-1GH - 13 -... - Page 16 It may be recommended that the surge absorbing part should be attached to the contact for certain load conditions. It must be attached to an appropriate position by checking how the load is activated. SD-1GH - 14 -...
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Page 18: How To Wire
From Φ9.6 to less than Φ10.5 Φ11 Φ12 Φ10.8 From Φ10.5 to less than Φ11.5 Φ12 Φ12 Φ11.8 From Φ11.5 to less than Φ12.5 Φ13 Φ14 Φ12.8 From Φ12.5 to less than Φ13.0 Φ13.5 Φ14 Φ13.8 φ 23 SD-1GH - 16 -... - Page 22 Use ring terminals to connect the grounding terminal with the ground and use the grounding wire with cross-sectional area of 4 mm or more for the external grounding terminal. <Wiring Example> Connecting to the indicator SD-1GH 1 2 3 4 5 RM-593, etc. +24 V Connecting to the upper unit (DCS, PLC)
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Page 25: How To Operate
24 hours or more 10 days or less 2 days or more Less than 1 month 7 days or more Less than 3 month 14 days or more 3 months or more 1 month or more SD-1GH - 23 -... -
Page 26: Modes
2-4.F Sensor Fault Alarm Pattern Setting 2-4.H LOAD Voltage Adjustment Display various electrical settings. Display This is not typically used by the user. Switch to Factory Not used. Mode Switch to User Returns to the user mode. Mode SD-1GH - 24 -... -
Page 30: Operations And Functions
The contact activation is reset automatically when the gas concentration drops below the alarm setpoint value. Alarm setpoint Time Alarm lamp (ALM) Alarm contact (terminal plate 4, 5) Alarm delay time (2 seconds) SD-1GH - 28 -... -
Page 31: Fault Alarm Activation
After the detector is successfully returned from the fault, it restarts with the process normally performed right after it is turned on (initial clear). If the detector has problems and is repeatedly malfunctioning, contact RIKEN KEIKI immediately. NOTE For information on malfunctions (error messages), see "9. Troubleshooting". -
Page 33: Other Functions
A reading under zero is suppressed with the 10% FS suppression. A reading that is 10% FS or more under zero is displayed as "-0.0", which prevents an accurate gas detection and needs the zero adjustment and span adjustment. SD-1GH - 31 -... -
Page 34: Maintenance
Inspect the alarm circuit by using the alarm test function. Span Perform the span adjustment by using Adjustment the calibration gas. Gas Alarm Check the gas alarm by using the Check calibration gas. SD-1GH - 32 -... - Page 35 Our qualified service engineers have expertise and knowledge on the dedicated tools used for services, along with other products. To maintain the safety operation of the detector, please use our maintenance service. The followings are typical maintenance services. For more information, please contact RIKEN KEIKI. Main Services Power Supply Check Checks the power supply voltage.
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Page 36: Regular Maintenance Mode
2-4.F Sensor Fault Alarm Pattern Setting 2-4.H LOAD Voltage Adjustment Display various electrical settings. Display This is not typically used by the user. Switch to Factory Not used. Mode Switch to User Mode Returns to the user mode. SD-1GH - 34 -... - Page 38 2-6. Enter the factory mode. This is not used by the user. rET. is displayed. 2-7. Press the SET key Return to the user mode. again to return to the user mode. To 2-0. Test Mode SD-1GH - 36 -...
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Page 48: Parts Replacement
7-4. Parts replacement <Sensor Replacement> Our service engineers need to replace the sensor and perform the gas calibration. Please contact RIKEN KEIKI. NOTE The gas calibration using the standard gas is required after the sensor is replaced. Please request it to RIKEN KEIKI. -
Page 49: Storage, Relocation And Disposal
For information on readjustment including a gas calibration, please contact RIKEN KEIKI. 8-3. Disposal of products When the detector is disposed of, it must be treated properly as an industrial waste in accordance with the local regulations. SD-1GH - 47 -... -
Page 50: Troubleshooting
If the detector 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 51 Deteriorated sensor Slow response Replace the sensor with a new one. sensitivity Improper calibration Use the proper calibration gas. gas concentration Span adjustment impossible Deteriorated sensor Replace the sensor with a new one. sensitivity SD-1GH - 49 -...
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Page 52: Product Specifications
10 Product Specifications 10-1. List of specifications Product Specifications 10-1. List of specifications <ATEX/IECEx Specifications> Model SD-1GH Detection principle Semiconductor Gas to be detected Combustible/toxic gas Concentration display Seven-segment LED (four-digit) Detection range Depends on the gas to be detected... - Page 53 10 Product Specifications 10-1. List of specifications Outline Drawings SD-1GH - 51 -...
- Page 54 10 Product Specifications 10-1. List of specifications <TIIS Specifications> Model SD-1GH Detection principle Semiconductor Gas to be detected Combustible/toxic gas Concentration display Seven-segment LED (four-digit) Detection range Depends on the gas to be detected Display resolution Depends on the gas to be detected...
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Page 55: List Of Accessories
Dedicated handling lever ....one Dedicated control key ....The supplied quantity depends on the number of units to be delivered. 1 to 10 units 11 to 20 units 21 to 50 units three over 51 units four SD-1GH - 53 -... -
Page 56: Detection Principle
<Semiconductor Type> Metal dioxide can measure gas concentration based on changes in the electric conductivity of semiconductor caused by gas adsorbed on its surface. RL: Load resistance, Vo: Output voltage VH: Heater voltage, Vs: Sensor voltage SD-1GH - 54 -... -
Page 57: Definition Of Terms
A function which temporarily suspends activation to prevent a false alarm Alarm delay time caused by noise from its outside. The gas detection function is temporarily suspended during maintenance, etc. of the detector. INHIBIT This is also called "point skip", which has the same function. SD-1GH - 55 -...
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