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Riken Keiki OX-592, Operating Instructions Manual

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Riken Keiki OX-592 Operating Instructions Manual Download Page 11

 

10 

３－５．Block diagram 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Detector head (Sensor) 

Amp part 

 
 
 
 

Control part 

 

Display part 

（ＰＷ／ＴＲ）(ＳＫＩＰ)（ＡＬ１）  （ＡＬ２） 

Operation part 

（ＭＯＤＥ）  （ＵＰ）  （ＤＯＷＮ）  （ＳＥＴ） 

POWER INPUT 

(DC24V) 

Power supply part 

Gas alarm contact（AL1、AL2） 
Trouble alarm contact 

                  (TROUBLE) 

※Standard setting 

・Non-exciting 
（Non-exciting at normal） 
・a-contact 
(Contact closes at alarm) 

Alarm contact control part 

OX-592 

4-20mA 

transmission 

Transmission part 

Summary of Contents for OX-592

Page 1: ...PT1E 0947 FOR USERS OPERATING INSTRUCTION MANUAL FOR INDICATOR ALARM UNIT OX 592 ...

Page 2: ...g dismounting procedures 11 4 3 Installation place 12 4 4 Caution in the system engineering 13 4 5 Grounding 15 4 6 Wiring 16 ５ OPERATION METHOD 5 1 Preparation for Start up 17 5 2 Basic performance flow 17 5 3 Start up method 18 5 3 1 Power on 18 5 4 Explanation of performance Detection mode 19 5 4 1 Display action 19 5 4 2 External output action 20 5 5 Maintenance and adjustment 21 5 5 1 Mainten...

Page 3: ...or regular check 29 7 3 Replacement of sensor parts 30 7 4 Treatment when operation is stopped or its installation place is moved 30 7 4 1 Stop at normal operation 30 7 4 2 Installation when move its place 30 7 5 Storage and treatment when not use for a long time 30 ８ SCRAP OF PRODUCT AND SENSOR 30 ９ MEASURES AT ABNORMAL CASE 9 1 Trouble alarm 31 9 2 Counteraction at trouble alarm 31 9 3 Before it...

Page 4: ...Detection range Action 1st alarm 2nd Alarm Prevention of oxygen deficiency 0 25vol Lo LoLo alarm Lo Lo General detection Including oxygen leakage 0 5vol 0 10vol 0 25vol Hi HiHi alarm Hi Hi Lo Hi alarm Lo Hi 0 50vol Lo LoLo alarm Lo Lo Take care that an alarm action and a relay output are different from application for use This operating instruction manual describes on the application for preventio...

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Page 7: ...peration When operate it not to follow this manual repair it by other rating parts or modify it on his own the safety and quality of products cannot be secured Then when an accident take place by it we cannot assure our responsibility on them Take enough consideration for instrumentation to keep safety even if disconnection of power and signal lines defect of operation or trouble would be happen d...

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Page 10: ...for power and trouble indication Steady light Power ON normal operation Flashing Trouble AL1 light Flashes at gas alarm 1st alarm AL2 light Flashes at gas alarm 2nd alarm SKIP light Flashes during maintenance mode MODE switch Uses at maintenance work UP DOWN switch Uses to select items at maintenance mode increase or decrease reading at zero and span adjustments and to increase or decrease reading...

Page 11: ...ＡＬ１ ＡＬ２ Operation part ＭＯＤＥ ＵＰ ＤＯＷＮ ＳＥＴ POWER INPUT DC24V Power supply part Gas alarm contact AL1 AL2 Trouble alarm contact TROUBLE Standard setting Non exciting Non exciting at normal a contact Contact closes at alarm Alarm contact control part OX 592 4 20mA transmission Transmission part ...

Page 12: ...agement lever at down position mount into the case Confirm that the edge connector is put in firmly Confirm that the disengagement lever is turned upward when indicator alarm unit is mounted into the case firmly After confirmation of lever position put ON the power switch and then close the cover 2 Removal of the unit Open the front cover of this unit Confirm that the power switch is at OFF Push d...

Page 13: ...intenance regularly Then do not install at the place where there is danger at maintenance time When required to stop the system at maintenance time unable to maintain if not remove a part of system or unable to detach the case due to the pipe or rack etc do not install such place Be sure to ground when installing to the equipment Do not install at places where direct sun drought or where the tempe...

Page 14: ...ase that cable connecting instrument is broken It is impossible to prevent the generation of lightning If the cable should put in metal tube or laid in the underground it is impossible to prevent the inductive lightning surge generating from the thunder Lightning measures There is not the complete countermeasure for it but the following method can be considered Make the suitable treatment accordin...

Page 15: ...592 is described by the conditions of resistive load When use the inductive load for alarm contacts the very high reverse electromotive voltage may be generated and the following trouble tends to be produced Contact part of relay is melted adhesively and the contacts can no work High voltage is put inside of indicator alarm unit and then electrical parts may be damaged As it is big noise the troub...

Page 16: ...to keep stable operation of this unit Do not connect earth wire with gas pipe Make grounding corresponding to D class grounding Grounding resistance below 100ohms WARNING Terminal CAUTION The inductive load shall not be used in principle Do not use fluorescent lamp When use the inductive load make the contact amplification outside but the outside relay coil belong use the relay driven by the low v...

Page 17: ... cable together with power line for motor etc This unit applies a connector type terminal plate for easy wiring Be care not to give a high load to the connector We can not warrant the performance of this unit if undesignated cable is used DC24V 10 AL1 1st alarm contact output AL2 2nd alarm contact output 4 20mA output GND 24V CVVS 1 25sq 2c Note 1 Note 1 When low flow alarm signal is used individu...

Page 18: ...uring adjustments Even relay contact works treat that any influence will not be given to the outer 5 To prevent fire check that the designated fuse is used ５ ２ Basic performance flow In normal operation it is used on detection mode Power on Stand by Initial clear approx 25sec Detection mode Alarm test mode SET switch Press for about 3 sec ＭＯＤＥ switch Press for about 3 sec Maintenance mode Change o...

Page 19: ...is opened 3 Put the power switch upward to ON and downward to OFF 4 Put the power switch on and power light illuminates 5 Status of initial clear about 25 sec is displayed as Checking of the system Self diagnosis Output signal Approx 17 4mA In case of 0 25 range for oxygen deficiency detection Gas alarm trouble alarm light contact shut off Cover Power switch ...

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Page 28: ...er Green It keeps steady light Alarm light AL1 Orange AL2 Red There are two alarm levels When reading reaches each preset alarm level or exceeds each preset alarm level this starts flashing and then returns to continuous lighting after reset operation Standard 2 External output ４ ２０mA output Electric current proportional to gas concentration is output It case of over scale the maximum out is 22mA ...

Page 29: ...aken ６ ２ ３ Gas alarm possibility except the case of gas detection It may respond to interference gas For interference gases contact the nearest agent or RIKEN KEIKI It may be caused by drifting due to the change of long time elapsed sensor Check the reading by daily check and make calibration through authorized service agent whenever necessary It may be caused by the noise generated from spherical...

Page 30: ...tor head and make span adjustment in maintenance mode at detector head side Alarm test Check that the alarm light flashes and buzzer sounds ７ １ ２ Regular maintenance check The following items shall be checked at regular check Daily check Cleaning of this unit Adjustments Function check Parts replacement Others ７ ２ Maintenance contract for regular check To maintain the safety operation of the unit ...

Page 31: ...rmal temperature and humidity away from direct sunlight In a place where gases solvents or vapors are not present ８ SCRAP OF PRODUCT AND SENSOR Scrap of products Regarding indicator alarm unit and detector head complete treat it in the same as industrial scrap Non flammable goods CAUTION When move its installation place be sure to make gas calibration The re adjustment work including gas calibrati...

Page 32: ...etection system and contact our nearest agent or RIKEN KEIKI There is the case of electrical line trouble such as shut off of power This will be treated by the re check of stand by battery electrical line filter insulation transformer etc or those addition ９ ４ Trouble shooting 1 PW TR light does not illuminate Cause and action Is it OK with power cable connection Connect power cable Is fuse discon...

Page 33: ...ction of sensor cable Check whether sensor is connected or the sensor cable connector is connected to the sensor If can not be recovered contact our nearest agent or RIKEN KEIKI 5 Fuse disconnection Performance This unit can not work Cause and action The trouble of this unit or trouble of external power source can be considered Search this cause and after taking its measures replace the fuse with ...

Page 34: ...the output of signal showing the maintenance mode condition is displayed on the external output signal By this the maintenance is carried out independently on this unit Press MODE switch for 3 seconds and the maintenance mode starts Initial clear The reading will be unstable for a few seconds after power on In this moment to prevent the error of running the alarm contact shall be cut off Then sign...

Page 35: ...xciting at normal non exciting at alarm Transmission scheme Analog transmission Specification of transmission DC4 20mA non isolated load resistance less than 300Ω Gas detector head signal DC4 20mA Cable between detector CVVS worth of shield cable 2 core Distance between detector Max 1 25km with CVVS 1 25mm2 cable Various functions Alarm delay Suppression Peak hold Alarm trend history Power require...

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