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PT2E-1493 

 

 

 

 

 
 
 

 
 
 
 

 

 

 
 

 

 
 

Request for the Customers 

 

Read and understand this operating manual before using the detector head. 

 

Use the detector head in accordance with the operating manual. 

 

Regardless of warranty period, we shall not make any indemnification for accidents and damage 
caused by using this product. 
The indemnification shall be made only under the warranty policy of products or parts replacement.

 

 

Because this is a safety unit, a regular maintenance for every six months and daily maintenance 
must be performed. 

 

If any abnormality was found in the detector head, notify them to RIKEN KEIKI immediately.

 

 

 
 

 

 

OPERATION AND MAINTENANCE MANUAL 

FOR 

RIKEN OXYGEN GAS DETECTOR HEAD 

GD-F3A-1 

Summary of Contents for GD-F3A-1

Page 1: ...onfor accid ents andd am ag e causedb y usingthis p rod uct The ind em nificationshall b e m ad e onlyund er the warrantyp olicyofp rod ucts or p arts rep lacem ent Because this is asafety unit areg u...

Page 2: ...Alarmlevel for g as alarminstrum ent shall b e set within the p erform ance of the instrum ent Our stand ardalarmlevel is 1 8 b y volum e for the p reventionof oxyg end eficiency 3 This is not control...

Page 3: ...1 0 Ap p licab le cab le 1 0 Exam p le ofcab le connection 1 0 OPERATIONM ETHOD Prep arationb efore start up 1 2 Start up 1 2 Stop p ingthe op eration 1 2 M AINTENANCE ANDINSPECTION Insp ectionfreq ue...

Page 4: ...2 PRODUCT SPECIFICATIONS Stand ardsp ecifications 1 8 Stand ardaccessories 1 8 Op tional accessories 1 8 DETECTIONPRINCIPLE 1 9...

Page 5: ...roofconstructionfor outd oor installation Also it canb eusedas intrinsicallysafesystemincom b inationw ithzenerb arrier op tion to b e ab le toinstall inhazard ous area Id e n tif ica tio n o f e a c...

Page 6: ...e Performg ascalib rationat p rop erinterval Donot chang eorrem od el thecircuit structureofthisunit Donot d isassem b lethesensorsincethereisaelectrolyteinsid e Ifyourfing ertouchestheelectrolyte w...

Page 7: ...5 PR O D U C T FU N C TIO N Ex te r n a l d r a w in g P ro tec ti v e g rou n d C ab l e i n l et fo r U b o l t S en so r...

Page 8: ...yedterm inal for sensor leadandexternal cab le Cab le g land Entrance toleadthe cab le 8 1 1 m m fromoutsid e Hing e Hing e for front d oor Lock Lockfor front d oor M ountinghole M ountinghole tofixth...

Page 9: ...visionandg roup Perform anced ivision ia Group C 3 Relationsb etw eenallow ab leind uctance Lo andallow ab lecap acitance Co ofintrinsic safetycircuit andexternal w iringind uctance Lw andcap acitance...

Page 10: ...or head Detector head Ind icator alarm unit N on hazard ous area N on hazard ous area CVVS1 2 5 sq 2 C or eq uivalent M AX 6 0 0 m S ensor hol d er O xygen A tm osp here C ab l e gl and S hi el d ed c...

Page 11: ...atureisd rasticallychang ed Placesexceed ingop eratingtem p eratureandhum id ity M a in te n a n ce s p a ce Acertainm aintenance sp ace m ust b e securedaroundthe d etector head sothat the m aintenan...

Page 12: ...nect the op tional zener b arrier b etw eenthis unit andind icator alarmunit at non hazard ous area See b elowfig Connect the shield ingw ire tochassis g round Exam p l e of i ntri nsi cal l y safe sy...

Page 13: ...d ingw ith g round resistanceof1 0 orless U sethesp ecifiedcab le Forsysteminstallation op erationandm aintenance tak ecarenot tod am ag etheintrinsically safed esig n The p ow er of the ind icator al...

Page 14: ...tchinind icator alarmunit Be sure top erformg as calib rationat the tim e ofnewinstallation Correct read ingm ay not b e ob tainedb efore g as calib ration Sto p p in gth e o p e r a tio n Thissystems...

Page 15: ...salsonecessary to carry out g as calib ration at least every 6m onths The lawin Jap an sets forth that the unit m ust issue an alarm d uring the circuit insp ection related to alarm w hile p rovid ing...

Page 16: ...unit Stop the sup p ly of zero g as d isconnect calib ration ad ap ter and confirm that the oxyg enread ingreturns to2 0 9 vol Pe r f o r m in ga s p a n a d ju s tm e n t Pack the sp an g as fresh ai...

Page 17: ...it fromthe hold er Insert newsensor intothe hold er andp ushthe sensor until it com es tothe end Connect b lackandw hite sensor leadw ires tothe term inal strip Connect w hite w ire top ositive term i...

Page 18: ...rature 0 4 0 Hum id ity 3 0 RH 8 5 RH Environm ental cond ition Environm ent w here g as solvent vap or andsoonare not existing List o f r e co m m e n d a b le sp a r e p a r ts f o r r e g u la r r...

Page 19: ...othe oxyg en onten p erm eatedthroug hthe m em b rane Refer to 1 0 DETECTIONPRINCIPLE for d etails Safety retainer for exp losion p rotectionb y lim itingthe energ y ofelectric current w ithin anon ig...

Page 20: ...le cab le O D 8 1 1 m m Op eratingtem p erature 1 0 4 0 Op eratinghum id ity Below9 0 RH Non cond ensing Structure W all m ounting 2 B 5 0 A p ole m ounting Kindofexp losionp roof Intrinsically safe w...

Page 21: ...teat aratep rop ortional tothep artial p ressureofoxyg en Theoxyg enreactsinthe cell and p rod uces a current p rop ortional to the oxyg en content The current d evelop s a voltag e across a tem p era...

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