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PT2E-3562 Gas Detector with Signal Converter SD-3 Series Excerpt Manual for FM Explosion Proof and Performance (PT2E-356) rev.2 NOTE This manual contains excerpts from FM explosion-proof and performance certification related to the SD-3 series. This manual is only included with FM Explosion Proof and Performance Certified products.
Contents Contents Product Overview...............................4 1-1 Introduction ...............................4 1-2 Intended use and features ........................4 1-3 Usage zones and conditions ........................4 Important Safety Information ..........................5 2-1 Danger information ............................5 2-2 Warning information ..........................5 2-3 Caution information ...........................5 2-4 Safety information .............................6 Product Configuration ............................. 23 3-1 Main unit and accessories ........................
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Contents 7-4-2 Performing zero calibration ......................48 7-4-3 Performing span adjustment ....................... 48 7-5 Setting environmental settings 1 ......................48 7-6 Setting environmental settings 3 ......................48 7-7 Parts replacement ..........................49 7-7-1 Sensor replacement ........................49 7-7-2 Replacement of periodic replacement parts ................50 Storage, Relocation, and Disposal ........................
1. Product Overview 1-1 Introduction Product Overview 1-1 Introduction Thank you for purchasing the SD-3 Gas Detector with Signal Converter (“product” hereinafter). This operating manual describes product operating procedures and specifications. It provides information essential to correct use of the product. When measuring combustible gases, follow the instructions provided in EN 60079-29-2.
2. Important Safety Information 2-1 Danger information Important Safety Information 2-1 Danger information Please refer to the Technical Manual for SD-3series (PT2E-287). 2-2 Warning information Please refer to the Technical Manual for SD-3series (PT2E-287). 2-3 Caution information Please refer to the Technical Manual for SD-3series (PT2E-287). 5 / 71...
2. Important Safety Information 2-4 Safety information 2-4 Safety information <Product overview> The products have an explosion-proof construction. Sensors are divided into three different types, depending on the corresponding detection principles. The detection methods are divided into the diffusion type and suction type. Suction-type sensors should be used with a suction cap fitted.
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2. Important Safety Information 2-4 Safety information <Explosion-proof performance data> The range of ambient temperatures in which explosion-proof performance can be maintained will differ depending on whether the optional lightning arrester is fitted. Refer to the following performance data for each model: 【US Certification】...
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2. Important Safety Information 2-4 Safety information SD-3ECS -40 °C ≤ Ta ≤ +70 °C Ⅰ SD-3DECS AEx db IIC T4 GD-3ECS -40 °C ≤ Ta ≤ +44 °C/+70 °C Ⅰ SD-3SC AEx db IIC T5/T4 -40 °C ≤ Ta ≤ +60 °C/+70 °C Ⅰ...
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2. Important Safety Information 2-4 Safety information 【Canadian Certification】 <With lightning arrester> Explosion- Model proof Explosion-proof class Ambient temperature construction SD-3RI -40 °C ≤ Ta ≤ +60 °C/+70 °C SD-3DRI Ex db IIC T6/T5 GD-3RI SD-3NC -40 °C ≤ Ta ≤ +44 °C/+70 °C SD-3DNC Ex db IIC T5/T4 GD-3NC...
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2. Important Safety Information 2-4 Safety information GD-3ECS SD-3SC Ex db IIC T5/T4 -50 °C ≤ Ta ≤ +44 °C/+70 °C SD-3SC Ex db IIC T6/T5 -50 °C ≤ Ta ≤ +60 °C/+70 °C Ex db IIC -50 °C ≤ Ta ≤+47 °C/ SD-3SC T6/T5/T4 +55 °C/+70 °C...
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2. Important Safety Information 2-4 Safety information <Electrical data> Option (select one) Alarm relay Power No alarm relay/ Model Supply voltage Signal output (contact output)/ Digital consumption No digital Resistance load communication communication only SD-3RI 30 V DC, 1 A 24 V DC 3.8 W Max 0 - 22 mA + HART...
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2. Important Safety Information 2-4 Safety information <System configuration diagrams> Installation diagram Hazardous area Non-hazardous (Zone 1) area Gas detector (SD-3) Display POW(+) POW(+) COM(−) COM(−) Signal cable Sig(+) Sig(+) Sig(−) Sig(−) Installation diagram Hazardous area Non-hazardous (Zone 1) area Gas detector (SD-3) Display POW(+)
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2. Important Safety Information 2-4 Safety information Installation diagram Hazardous area Non-hazardous (Zone 1) area Gas detector (SD-3 (RS-485)) Display POW(+) POW(+) COM(−) COM(−) Signal cable Sig(+) Sig(+) Sig(−) Sig(−) RS-485 RS-485 Signal cable Installation diagram Hazardous area Non-hazardous (Zone 1) area Gas detector (SD-3SC) Display...
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2. Important Safety Information 2-4 Safety information Installation diagram Hazardous area Non-hazardous (Zone 1) area Gas detector (SD-3SC) Display POW(+) POW(+) COM(−) COM(−) Signal cable Sig(+) Sig(+) Sig(−) Sig(−) Remote sensor head (GD-3) POW(+) POW(+) COM(−) Signal COM(−) Signal cable RS-485(Y) RS-485(Y) cable...
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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.
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2. Important Safety Information 2-4 Safety information Putting into service Type and size of screw at external entry of SD-3. Entry3 Entry4 Entry2 Entry1 Entry5 Entry6 Entry1 Entry2 Entry3 Entry4 Entry5 Entry6 ✕ 〇 〇 〇 〇 〇 M25×1.5 ✕ ✕...
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2. Important Safety Information 2-4 Safety information External entry of GD-3. Entry1 Entry2 Entry3 Combination table of external entry Entry1 Entry2 Entry3 ✕ ✕ Sensor Assembly 〇 ✕ ✕ EC Barrier 〇 ✕ Certified cable gland 〇 〇 M25 Plug 〇...
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2. Important Safety Information 2-4 Safety information COMPONENT CERTIFICATES RATINGS manufacturer name/ protection number&edition standards voltage, code current, temperature IECEx BAS EN 60079- Eaton Electric TP48 and TP32 Series II 2 G Ex 15.0056X 0:2012+A11:2013 -40ºC Limited Surge Protection db IIC T6 Issue 1 EN 60079-1:2014 to+70ºC...
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2. Important Safety Information 2-4 Safety information <Connection examples> SD-3SC GD-3RI SD-3SC GD-3ECB 20 / 71...
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2. Important Safety Information 2-4 Safety information <Exploded view> <SD-3> Container Cover Blanking plug Blanking plug Gas sensor Sensor guard <GD-3> Container Cover Blanking plug Gas sensor Sensor guard 21 / 71...
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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”...
3. Product Configuration 3-1 Main unit and accessories Product Configuration 3-1 Main unit and accessories Please refer to the Technical Manual for SD-3series (PT2E-287). 3-1-1 Main unit (SD-3) Please refer to the Technical Manual for SD-3series (PT2E-287). 3-1-2 Main unit (SD-3SC) Please refer to the Technical Manual for SD-3series (PT2E-287).
3. Product Configuration 3-2 Part names and functions 3-2 Part names and functions <SD-3> <Display (same for both SD-3 and SD-3SC)> ⑥ ⑦ ⑧ ⑨ ⑩ ① ④ ② ⑭ <SD-3SC> ⑤ ③ ⑪ ⑫ ⑬ Name Function Hold down this key in detection mode to switch to user mode. MENU/ESC key ①...
3. Product Configuration 3-3 Block diagrams 3-3 Block diagrams The block diagrams (electrical circuit diagrams) for the product are given below. <SD-3> Power supply unit 24 V DC Display (LED) Power supply voltage converter ・ POWER ・ ALM1 ・ ALM2 ・...
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3. Product Configuration 3-3 Block diagrams <SD-3SC> Power supply unit 24 V DC Display (LED) Power supply voltage converter ・ POWER ・ ALM1 ・ ALM2 ・ FAULT External output ・ PPM 4 - 20 mA + HART ・ %LEL ・ % HART modem Display Control...
4. Installation 4-1 Installation precautions Installation 4-1 Installation precautions 4-1-1 General installation information It is not permitted to prevent gases and vapors contacting the sensor. Dirt, snow, mud, external devices, etc. If there is dust or water droplets on the sensor, remove them as appropriate. If there is dust or water in the splash guard, remove them.
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Alarm test is performed under the following conditions (refer to ‘7-3-2 Performing alarm test’ in the Technical Manual for SD-3 series (PT2E-287)). Set the contact action ON. Press ▲ key to increase the indicator until it reaches full scale over (nnnn), and when that happens, make sure that the voltage of the SD-3 terminal block is over 18VDC.
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4. Installation 4-1 Installation precautions Set the Fault test ON. When that happens, make sure that the voltage of the SD-3 terminal block is over 18VDC. If it’s below 18VDC, then increase the voltage supply at the power source. If the temperature at this point increases during the operation, give enough margin to the voltage supply by compensating the voltage drop caused by the increase of the cable resistor value.
4. Installation 4-2 System design precautions 4-2 System design precautions Please refer to the Technical Manual for SD-3series (PT2E-287). 4-3 Providing maintenance space Please refer to the Technical Manual for SD-3series (PT2E-287). 4-4 Main unit installation Please refer to the Technical Manual for SD-3series (PT2E-287). 4-5 Remote sensor head (GD-3) installation Please refer to the Technical Manual for SD-3series (PT2E-287).
6. Alarm Activation 6-1 Gas alarm activation Alarm Activation 6-1 Gas alarm activation Please refer to the Technical Manual for SD-3series (PT2E-287). 6-1-1 Alarm activation Please refer to the Technical Manual for SD-3series (PT2E-287). 6-1-2 Contact operation (auto reset) Please refer to the Technical Manual for SD-3series (PT2E-287). 6-1-3 Contact operation (self-latching) Please refer to the Technical Manual for SD-3series (PT2E-287).
For more information on fault details (error codes) and appropriate corrective action, refer to ‘9. Troubleshooting’. If a fault alarm occurs, determine the cause and take appropriate action. If the product has problems and faults occur repeatedly, contact Riken Keiki immediately. 35 / 71...
6. Alarm Activation 6-3 Warning operation 6-3 Warning operation Please refer to the Technical Manual for SD-3series (PT2E-287). 6-4 External output operation Please refer to the Technical Manual for SD-3series (PT2E-287). 6-5 Functions to ensure correct alarm activation 6-5-1 Zero suppression function The sensors used in the product are susceptible to the effects of ambient fluctuations (e.g., temperature and humidity characteristics) and interference gases (interference characteristics), which affect the readings given by the product.
<Maintenance services> Riken Keiki provides services related to regular maintenance including calibration, adjustments, and servicing. Preparing a calibration gas requires dedicated equipment, including gas cylinders of the specified concentration and gas sampling bags.
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7. Maintenance 7-1 Maintenance intervals and items The main details of the maintenance services are as follows. Please contact Riken Keiki for more information. Service Service details ・ Check the power supply voltage. Power supply check ・ Check to confirm that the power lamp is lit.
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7. Maintenance 7-1 Maintenance intervals and items ESF: 6 months to 12 months [Check items] Indication accuracy: zero reading, gas reading Response <Visual inspection> It is necessary to perform a visual inspection of the gas detector to check whether there are external obstructions to the flow of gas/vapor to the sensor.
7. Maintenance 7-4 Performing calibration 7-4 Performing calibration 7-4-1 Calibration preparation Before performing calibration (zero calibration and span adjustment), prepare the calibration gas. Also connect the calibration equipment required to the product before starting. Zero calibration gas Span adjustment gas (in gas sampling bag or gas can) ...
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7. Maintenance 7-4 Performing calibration <List of adjustment conditions> Calibration gas Applicable Time Sensor Detection Chemical Detection Calibration gas concentration Calibration flow rate for required Sample detector Zero gas Dilution gas Remarks model target formula concentration (alternative gas) (alternative gas calibration flow rate model...
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7. Maintenance 7-4 Performing calibration <Using a gas sampling bag> Product (SD-3) Calibration adapter sampling Flowmeter Pump To exhaust port Needle valve * The diagram illustrates the SD-3. The connection method is the same for the remote sensor head (GD-3). 43 / 71...
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7. Maintenance 7-4 Performing calibration <Using a gas can> Product (SD-3) To exhaust port Calibration adapter <Using a gas can> Product (SD-3) Calibration adapter To exhaust port * The diagram illustrates the SD-3. The connection method is the same for the remote sensor head (GD-3). 44 / 71...
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7. Maintenance 7-4 Performing calibration <When using the splash guard> NOTE The calibration adapter is not required when using the splash guard. When using the splash guard, calibrate using the following wind speed: Detection principle Wind speed Non-dispersive infrared absorption type (infrared type) Max.
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If this does not solve the issue, the matter needs to be checked by a qualified service engineer. To ensure safety and the stable operation of the product, request checking by a qualified service engineer. Also, as a method for determining the locations of leaks, we recommend our leak tester. Contact RIKEN KEIKI to request checking.
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It is necessary to perform span adjustment within 24 hours of the most recent valid zero adjustment. For managing the concentration of calibration gases, we recommend the use of a RIKEN KEIKI portable detector. Contact RIKEN KEIKI.
7. Maintenance 7-5 Setting environmental settings 1 7-4-2 Performing zero calibration Please refer to the Technical Manual for SD-3series (PT2E-287). 7-4-3 Performing span adjustment Please refer to the Technical Manual for SD-3series (PT2E-287). 7-5 Setting environmental settings 1 Please refer to the Technical Manual for SD-3series (PT2E-287). 7-6 Setting environmental settings 3 Please refer to the Technical Manual for SD-3series (PT2E-287).
7. Maintenance 7-7 Parts replacement 7-7 Parts replacement 7-7-1 Sensor replacement Please contact Riken Keiki for sensor replacement. <Sensor replacement intervals> Sensor Sensor Detection target Chemical Detection detector Units replacement model formula concentration model interval IRF-1301 Methane 100 %LEL %LEL...
*1: A functional check by a qualified service engineer is required after replacement. To ensure safety and the stable operation of the product, request checking by a qualified service engineer. Contact RIKEN KEIKI to request checking. 50 / 71...
8. Storage, Relocation, and Disposal 8-1 Procedures for storage or when not in use for extended periods Storage, Relocation, and Disposal 8-1 Procedures for storage or when not in use for extended periods <Storage conditions (Sensor)> Storage Temperature Humidity Pressure limit (°C) (% RH)
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8. Storage, Relocation, and Disposal 8-1 Procedures for storage or when not in use for extended periods <Storage conditions (Sensor-fitted SD-3)> Storage Temperature Humidity Pressure limit (°C) (% RH) (kPa) Model Remarks (years) - Minimum Maximum Minimum Maximum Minimum Maximum ・...
8. Storage, Relocation, and Disposal 8-2 Procedures for relocation or reuse 8-2 Procedures for relocation or reuse Please refer to the Technical Manual for SD-3series (PT2E-287). 8-3 Product disposal Please refer to the Technical Manual for SD-3series (PT2E-287). 53 / 71...
Check the wiring for the product and peripheral Cable abnormality devices. (Disconnection, cable not connected, short circuit) Fuse blown Replacement required. Contact Riken Keiki. Internal circuit abnormality Replacement required. Contact Riken Keiki. Abnormal Disturbances due to Turn off the power and restart. If similar operation sudden noise, etc.
Check the cable between the main unit (SD-3SC) between the main unit and remote sensor head (GD-3). (SD-3SC) and remote sensor head (GD-3) Sensor A main unit (SD-3/ Replacement required. Contact Riken Keiki. abnormality SD-3SC) or remote sensor head (GD-3) fuse has (E-1) blown. (Lamp Main unit (SD-3/SD-3SC) Replacement required.
SD-3 SD-3 (contact model) Specifications Standard Contact Display 7-segment LED (5 digits) Sensor F sensor (Riken Keiki) Detection principle Infrared/electrochemical/new ceramic/semiconductor/hot-wire semiconductor Detection target gas Depends on sensor specifications. Detection range Depends on sensor specifications. Sampling method Diffusion type/suction type (introduced via external unit) Set flow rate 0.4 - 1.5 L/min...
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10. Product Specifications 10-1 SD-3 specifications Model SD-3 SD-3 (contact model) 3-wire analog transmission (common power supply <power supply, signal, Transmission common>) or method (4 - 20 mA) 2-wire analog transmission (current source) 4 mA - 20 mA DC (non-insulated linear output) Transmission Maximum load resistance 600 Ω...
SD-3SC + GD-3 + GD-3 Specifications Standard Contact Display 7-segment LED (5 digits) Sensor F sensor (Riken Keiki) Detection principle Infrared/electrochemical/new ceramic/semiconductor/hot-wire semiconductor Detection target gas Depends on sensor specifications. Detection range Depends on sensor specifications. Sampling method Diffusion type...
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10. Product Specifications 10-2 SD-3SC + GD-3 specifications SD-3SC (contact model) Model SD-3SC + GD-3 + GD-3 Shielded cable 1.25 sq (1.308 mm /AWG16) or 2.0 sq (2.08 mm /AWG14) (same as power supply cable) Transmission cable (4 - 20 mA) *To ensure explosion protection, use a cable designed for use in temperatures at least 5 °C above the maximum anticipated ambient temperature.
10. Product Specifications 10-3 Detection target gases for individual detection principles 10-3 Detection target gases for individual detection principles 10-3-1 Non-dispersive infrared absorption type (Infrared type) First Second Operating Operating Calibration Years of Sensor model Gas name F.S. 1 digit temperature humidity Alarm...
10. Product Specifications 10-3 Detection target gases for individual detection principles 10-3-5 Electrochemical type First Second Operating Operating Calibration Years of Alarm Alarm Sensor model Gas name F.S. 1 digit temperature humidity symbol warranty setpoint setpoint range range 95 %RH Hydrogen or less ESF-A24R...
11. Appendix 11-2 Sensor Specifications 11-2-2 Combustible gas sensor specification Gas detector model SD-3NC/SD-3DNC/GD-3NC Sensor model NCF-6318 Parts No. 600019 6000 50 600003 Measuring principle New ceramic type Detection target gas Methane (CH Hydorogen Maximum detection 100 %LEL concentration Units %LEL Digit 0.5%LEL...
11. Appendix 11-2 Sensor Specifications 11-2-3 EC sensor specification Gas detector model SD-3ECS/SD-3DECS/GD-3ECS SD-3EC/SD-3DEC/GD-3EC Sensor model ESF-A24R ESF-A24R3 Parts No. 610004 610049 Measuring principle Electrochemical Detection target gas Hydrogen sulfide(H Maximum detection 100 ppm concentration Units Digit 1 ppm LEL value to apply (BS EN ISO ―...
11. Appendix Product warranty Product warranty Please refer to the Technical Manual for SD-3series (PT2E-287). Sensor warranty Please refer to the Technical Manual for SD-3series (PT2E-287). 70 / 71...
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