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7 Maintenance

 

7-4. Parts replacement   

 

- 43 - 

 

<Replacement of Regular Replacement Parts> 

List of recommended regular replacement parts 

 

No. Item 

Maintenance 

intervals 

Replacement 

intervals (year) 

Quantity 

(pieces/unit) 

Guard assembly 

6 months 

3 - 8 years 

  After replacements having need of operation check by professional service engineers. 

To maintain the safety operation of the detector, please use our maintenance service. 
Request RIKEN KEIKI for it. 

 

NOTE 

  The above replacement intervals are recommendation only. The intervals may change depending on the 

operating conditions. These intervals do not mean the warranty periods either. The result of the regular 
maintenance may determine when to replace the parts. 

 
 
 
 
 
 

Содержание SD-1RI

Страница 1: ...PT2E 1957 Smart transmitter Gas Detector Head SD 1RI Operating Manual PT2E 195 PT2 195 ...

Страница 2: ... the performance of the detector can be ensured In facilities compliant with the High Pressure Gas Safety Act an alarm setting below our standard alarm setpoint may trigger a false alarm 3 This is a safety unit not a control unit The alarm contact output of the detector must be used for an external alarm lamp buzzer while the alarm signal output must be used for an indicator or external recorder I...

Страница 3: ...dure 15 4 6 How to wire 15 5 How to Operate 20 5 1 Preparation for start up 20 5 2 Basic operating procedures 20 5 3 How to start the detector 21 5 4 Modes 22 5 5 Maintenance mode User 23 5 6 How to exit 25 6 Operations and Functions 26 6 1 Gas alarm activation 26 6 2 Fault alarm activation 27 6 3 External output operation 28 6 4 Other functions 29 7 Maintenance 30 7 1 Maintenance intervals and it...

Страница 4: ...tector is a safety unit not an analyzer or densitometer which performs quantitative qualitative analysis measurement for gases Please fully understand the features of the detector before using it so that it can be used properly The detector detects abnormalities in the air caused by presence of gases or other reasons leak with the built in gas sensor The concentrations of detected gases are displa...

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Страница 29: ...ration Display In case of over the detection range Over Scale is displayed on the LED Power Indicator Lamp POWER Green During operation this lights up continuously Alarm Indicator Lamp ALM Red It lights up when the alarm setpoint value is reached to or exceeded Contact Activation The contact is activated when the gas concentration reaches or exceeds the alarm setpoint value only when the alarm is ...

Страница 30: ...h a protective gear to avoid dangers caused by possibly remaining gases before accessing the gas leak point and then check that gases remain by using a portable gas detector Determine that the point is free from dangers and take actions to fix the gas leak 6 2 Fault alarm activation A fault alarm is triggered when the detector detects abnormalities After a fault alarm is triggered the fault lamp y...

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Страница 33: ...isplay value is zero When the reading is incorrect perform the zero adjustment after ensuring that no other gases exist around it Alarm Test Inspect the alarm circuit by using the alarm test function Span Adjustment Perform the sensitivity calibration by using the calibration gas Gas Alarm Check Check the gas alarm by using the calibration gas About Maintenance Services We provide services on regu...

Страница 34: ...the external alarm such as a buzzer Span Adjustment Performs the sensitivity calibration by using the calibration gas Gas Alarm Check Checks the gas alarm by using the calibration gas Checks the alarm Checks the alarm activation when the alarm setpoint is reached Checks the delay time Checks time to delay until the alarm is triggered Checks the alarm lamps Check each activation of ALM Checks the e...

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Страница 46: ...r replacements having need of operation check by professional service engineers To maintain the safety operation of the detector please use our maintenance service Request RIKEN KEIKI for it NOTE The above replacement intervals are recommendation only The intervals may change depending on the operating conditions These intervals do not mean the warranty periods either The result of the regular mai...

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Страница 48: ...hen take additional measures Cable abnormalities open circuit not connected short circuit Check the wiring of detector and related devices around it Abnormal operations Disturbances by sudden surge noise etc Turn off and restart the detector If such a symptom is observed frequently take appropriate measures to eliminate the noise Sensor abnormalities E 1 The sensor is not connected or improperly c...

Страница 49: ... Presence of interference gas Interference gas test including solvents are identified and be treated properly Disturbance by noise Turn off and restart the detector If such a symptom is observed frequently take appropriate measures to eliminate the noise Sudden change in the environment When the environment temperature etc changes suddenly the detector cannot adjust to it and is affected by it In ...

Страница 50: ... normal non exciting at alarm Contact capacity 250VAC 0 5A 30VDC 0 5A resistive load Transmission scheme Three wire analog transmission in common with power supply power supply signal common Specification of transmission 4 20mA DC linear load resistance less than 300Ω Transmission cable CVVS1 25 mm2 or 2 0mm2 3 core when the contact isn t used CVVS1 25 mm2 or 2 0mm2 5 core when the contact is used...

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Страница 52: ... exciting at alarm or exciting at normal non exciting at alarm Contact capacity 250VAC 0 5A 30VDC 0 5A resistive load Transmission scheme Three wire analog transmission in common with power supply power supply signal common Specification of transmission 4 20mA DC linear load resistance less than 300Ω Transmission cable CVVS1 25 mm2 or 2 0mm2 3 core when the contact is not used CVVS1 25 mm2 or 2 0m...

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Страница 54: ...e oxide PO 0 100 LEL 25 0 20 53 20 60 Cyclopentane C5H10 0 100 LEL 25 0 20 53 20 60 0 5000 ppm 1250 20 53 20 60 Dichloromethane CH2CL2 0 100 LEL 25 0 10 53 10 60 Diethyl carbonate C5H10O3 0 100 LEL 25 0 20 53 20 60 Dimethyl carbonate C3H6O3 0 100 LEL 25 0 20 53 20 60 Tetrahydrofuran THF 0 100 LEL 25 0 20 53 20 60 City gas 13A 13A 0 100 LEL 25 0 20 53 20 60 Toluene C7H8 0 100 LEL 25 0 10 53 10 60 C...

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Страница 56: ...lower explosive limit LEL of the combustible gas to be detected is set to 100 ppm A concentration unit that means part per million of the combustible gas to be detected Calibration Adjusts the readings to the calibration gas concentration value by using the calibration gas Zero suppression A function to cut off the specific drifting that the sensor has Alarm delay time A function which temporarily...

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