Riken Keiki NC-591W Operating Instructions Manual Download Page 7 | Manualshive

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Summary of Contents for NC-591W

Page 1: ...sation for accidents and damage caused by using this product The compensation shall be made only under the warranty policy of products or parts replacement Because this is a safety unit a regular main...

Page 2: ...t Mounting the unit Detaching the unit Installation place Caution in the system engineering Stable power used Designing to consider radiation Lightning measures Alarm contact Grounding Wiring OPERATIO...

Page 3: ...eplacement of sensor and parts Treatment when operation is stopped or its installation place is moved Stopping the normal operation Installation when move its place Storage or treatment when the unit...

Page 4: ...d with this indicator alarm unit Detection results Gas concentrations are displayed with 4 digit LED indicator and outputs 4 20mADC in ppm range and fixed 22mADC for LEL range as gas concentration sig...

Page 5: ...ective functions such as protective grounding or fuse are seems to be defective Also before operating the unit confirm that there is no defect for protective functions Fuse Use the designated rating c...

Page 6: ...n 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 can not be secured Then when an accident take place by it we cannot as...

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Page 8: ...e consult us or with our agent for installation method or installation quantity to avoid trouble caused by radiating heat Dimensions with single case 1 Mounting for 2 steps in vertical and N lines in...

Page 9: ...alarm and changes to steady light after reset operation AL2 light Flashes at gas alarm 2nd alarm and changes to steady light after reset operation SKIP ligh t Flashes during maintenance mode MODE swi...

Page 10: ...t Operation part POWER INPUT DC24V Power supply part Gas alarm contact Trouble alarm Standard setting De energized De energized at normal N O contact Contact closes at alarm Alarm contact control part...

Page 11: ...tor 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 th...

Page 12: ...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...

Page 13: ...e 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 lig...

Page 14: ...lay make contact amplification by the low voltage relay and operate by connecting CR circuit Spark Killer SK Diode etc for DC suited for relay coil directly to relay Add CR circuit to the load side of...

Page 15: ...is big noise the trouble action may be taken by the reckless drive of CPU Unforeseeable noise may break into the contact regardless of inductive load and the above trouble tends to be produced As the...

Page 16: ...with single case In case of multi unit case refer to instruction manual for multi unit case Be sure to make grounding for safety purpose and to keep stable operation of this unit Do not connect each w...

Page 17: ...20mA output GND Earth terminal Detector head 24 CAUTION Use CVV 1 25mm2 cable for connection of detector head Do not distribute power cable detector head cable and signal cable together with power lin...

Page 18: ...s Even relay contact works treat that any influence will not be given to the outer To prevent fire check that the designated fuse is used Basic performance flow Power on Stand by Initial clear approx...

Page 19: ...when the front cover 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 Chec...

Page 20: ...ndications by LED display and LED light are different from the condition of the unit Preparation Power ON Action of LED light Light off Light on Flashing Initial clear Approx 25 sec Detection mode Onl...

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Page 28: ...after making point ship with the upper system Centralized system When finish this operation check the external output and function of outer equipment to be connected with external alarm contact Then j...

Page 29: ...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 r...

Page 30: ...be taken Alarm other than gas leakage t may respond to interference gas For interference gases contact the nearest agent or RIKEN KEIKI t may be caused by drifting due to the change of long time elap...

Page 31: ...ad side Alarm test Check that the alarm light flashes and buzzer sounds Regular maintenance check The following items shall be checked at regular check Daily check Cleaning of this unit Adjustments Fu...

Page 32: ...rk place under the normal temperature and humidity away from direct sunlight In a place where gases solvents or vapors are not present SCRAP OF PRODUCT AND SENSOR Regarding indicator alarm unit comple...

Page 33: ...ated from disconnection and short circuit between units Check the wirings including peripheral equipment as well as detector head Re check the detection system and contact our nearest agent or RIKEN K...

Page 34: ...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 Fuse disconnection Performa...

Page 35: ...put 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 over 3 seconds t...

Page 36: ...flashing steady light after reset operation Relay contact De energized at normal Energized at alarm standard or Energized at normal De energized at alarm option Potential free contact N O standard or...

Page 37: ...s Standard compositions Indicator alarm unit Model NC 591W Operating instruction manual 1 vol Spare fuse Depends on ordered quantity of the unit 1 10 units 11 20 units 21 50 units 51 units and above 1...

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