New Cosmos Electric KS-7R Instruction Manual Download Page 1

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Carbon Dioxide Detector

KS-7R

Instruction Manual



Keep this manual for easy reference.



Carefully read this manual prior to use.



This manual describes the standard model. If your unit has end-user-specific

options, this manual will be superseded by your delivery specifications.

Instruction Manual No.

GAE-139-01

June 2019

Summary of Contents for KS-7R

Page 1: ...is manual for easy reference Carefully read this manual prior to use This manual describes the standard model If your unit has end user specific options this manual will be superseded by your delivery specifications Instruction Manual No GAE 139 01 June 2019 ...

Page 2: ...n Status 14 7 3 3 Full Scale and Alarm Set Values Display 15 7 3 4 Peak Value Display and Reset 15 7 3 5 Operation during Gas Alarm 15 7 4 User Mode 16 7 4 1 User Mode Operation 16 7 4 2 Switching Maintenance Mode On Off Mode 1 17 7 4 3 Zero Adjustment Mode 2 18 7 4 4 Air Adjustment Mode 3 18 7 4 5 Alarm Test Mode 4 19 7 4 6 Alarm Event History Mode 5 20 7 4 7 Clock Setting Mode 6 21 7 5 Maker Mod...

Page 3: ...the gas concentration value on its display This unit monitors carbon dioxide levels and when they reach a preset level the unit will produce audio visual alarms and activate relay contacts This manual uses Danger Warning Caution and Note symbols to draw attention to procedures materials methods and processes which require particular attention Indicates an imminently hazardous situation that can re...

Page 4: ...he event of a power outage during operation the detector will automatically resume operation once power is restored provided the main power switch under the cover is in the on up position NOTE Do not disassemble modify or alter the structure of this unit or its electrical circuits Doing so may compromise the performance of the product This product is not drip proof equipment and should be kept awa...

Page 5: ... replacement Item Qty Description CO2 detector KS 7R 1 Mounting screw 2 M5x12 with spring washer wall mounting Cable tie 1 To be used to bundle electric cables Pin terminal 9 To be crimped to cables and inserted into the terminal block Insulating sleeve 9 To be installed in a crimped pin terminal to provide insulation Instruction manual 1 This manual Inspection certificate 1 ...

Page 6: ... 1 st 2 nd stage alarm four internal amber red LEDs light sequentially 5 LCD Displays CO2 concentration parameter values error codes and status icons 6 AL2 alarm light red Flashes red in the event of a 2 nd stage alarm The light will become solid if reset by pressing the RESET button 7 AL1 alarm light amber Flashes amber in the event of a 1st stage alarm The light will become solid if reset by pre...

Page 7: ... terminals 14 Maintenance button Recessed button used for making settings 4 2 Inner Components Item Component Description Function 1 Cover Slide up and lift the cover to access to the main power switch and to wire external cables This cover is normally closed 2 Screw cover Houses one mounting screw and two fastening screws that attach the cover to the unit This cover is normally closed 3 Fastening...

Page 8: ...p Proper gas detection is not possible if installed inverted at an angle or horizontally CO2 is heavier than air so the recommended sensor height is 150 cm head height unless otherwise required by applicable laws or regulations Install the unit with its gas detection port free from obstructions Secure the cover by tightening the two fastening screws Proper gas detection is not possible if the cove...

Page 9: ...cover 2 Loosely install the mounting screw top 3 Loosen the two fastening screws 4 Slightly pull the cover forward Dimensions are in mm 2 Loosely install mounting screw top 3 Loosen two fastening screws Cover 4 Pull cover forward Screw cover 1 Open screw cover Clearance for cover to slide Cable entry Mounting hole Sensor ...

Page 10: ...ighten the mounting screw top 10 Secure the screw cover to the case with the two fastening screws 11 Close the screw cover CAUTION Secure the cover by tightening the two fastening screws Proper gas detection is not possible if the cover is not tightly closed 5 Slide cover up 6 Tighten mounting screw bottom 7 Slide cover down 10 Tighten two fastening screws Case 9 Tighten mounting screw 8 Press dow...

Page 11: ...S C D COM Signal E N P ZA2 ZA1 TA Remove any power source during wiring work to prevent electric shocks After wiring is completed close the detector s cover to prevent electric shocks WARNING New Cosmos is not responsible for the cost or any damage resulting from controlling external equipment e g interlock by using the detector s outputs e g analog output alarm relay contact output Connect wires ...

Page 12: ...nal output terminal block FFKDSA1 H1 5 08 8 Phoenix Contact Diameter 0 2 1 5mm 1 Wire stripping Strip the wire Recommended stripped wire length 5 5mm 2 Pin terminal installation Insert the stripped wire into a pin terminal until 1mm of stripped wire can be seen from the end of the pin terminal s barrel 3 Terminal crimping Crimp the center of the barrel 4 Insulating sleeve installation Attach an In...

Page 13: ... a loop To easily bundle the wiring of in coming cables to the terminal block feed these cables thru this loop and secure to the case wall Cable tie Cable entry Insert each pin terminal to its corresponding slot on the terminal block Connection Disconnection While pressing the release button with a precision screwdriver recommended tip thickness 2 6 mm lift the pin terminal Disconnection Connectio...

Page 14: ...fastening screws CAUTION Secure the cover by tightening the two fastening screws Proper gas detection is not possible if the cover is not tightly closed Status indicator LCD POWER button Before turning on the unit check that all wiring is correct Refer to 6 Wiring or delivery specifications if provided Ensure there is no target or interfering gas in the air before use Before the sensor output is s...

Page 15: ...pleted the three green flashing LEDs inside the status indicator become solid the gas concentration is displayed on the LCD and normal operation starts 6 Perform an alarm test Refer to 7 4 5 Alarm Test Confirm that an alarm activates 7 To turn off the detector press and hold the POWER button for three seconds to stop its operation then set the main power switch to the off down position Warm up ope...

Page 16: ... 7 Alarm event history icon Lit when an alarm event is being accessed 8 Maintenance mode icon Lit when Maintenance mode is active 7 3 2 Normal Operation Status During normal operation the green status indicator is fully lit the gas concentration value is displayed on the LCD and the AL1 and AL2 alarm lights are off Buttons and switch POWER button RESET button UP button DOWN button Maintenance butt...

Page 17: ...ator sequentially flashes and the audio alarm sounds There are two options to clear a gas alarm manual resetting and self resetting By default the detector is set to self resetting mode Please specify the alarm clearance option at the time of order The alarm hysteresis range is 200 ppm The alarm will not be cleared until the gas concentration exceeds the alarm set value by more than the hysteresis...

Page 18: ...lock setting DATE 1 st stage alarm AL1 alarm light amber flashes and the status indicator sequentially flashes amber Audio alarm beep Fast high and low beep tones COM ZA1 alarm relay contact closes COM ZB1 alarm relay contact opens 2 nd stage alarm AL2 and A1 alarm lights red and amber flash and the status indicator sequentially flashes red Audio alarm beep pattern Very fast high and low beep tone...

Page 19: ...on The maintenance icon is displayed and 1 and MT will be alternately displayed indicating that the unit is in Maintenance mode 5 To end Maintenance mode take the steps 1 to 4 above to switch Maintenance mode from ON to OFF Confirm the maintenance icon has turned off During Maintenance mode the gas alarm relay contacts and gas alarm audio are disabled Turn off Maintenance mode during normal operat...

Page 20: ...ible without proper adjustment To adjust the sensor a zero or air adjustment is necessary Air adjustment is recommended Sensor adjustment air zero adjustment should only be performed by qualified technician For adjustment contact your New Cosmos representative fees apply CAUTION Do not perform an air adjustment Accurate detection is not possible without proper adjustment To adjust the sensor a zer...

Page 21: ...yed Note If the RESET button is pressed and held the alarm will not be cancelled and the unit will return to normal operation mode 6 To change the test value repeat steps 3 to 5 7 Press and hold the RESET button for five seconds to return to normal operation mode E g Test value is currently set to 2000 ppm E g Test value is changed to 5000 ppm To increase decrease the test value press the button H...

Page 22: ...beep to select display the desired alarm event from H1 to H10 4 Press the maintenance button one beep The alarm event history icon is present and the display alternates between AL and the peak value ppm for the selected event 5 Each press of the button cycles through the details of the selected alarm event The sequence is starting year date and time and ending year date and time of the event No al...

Page 23: ...nately displayed 3 Select the item to change with the button The item and its currently set value will be displayed When selecting YEAR for example 4 Press the maintenance button one beep The currently set year will be displayed 5 Change the set value by using the button 6 Press and hold the maintenance button for three seconds to confirm the change beep pattern short long short short YEAR and the...

Page 24: ...layed followed by all the LCD segments displayed and finally 775 starts flashing Now Maker mode is active Incorrect settings in Maker mode may change the detector s specifications Never operate in a way other than as described in this instruction manual Only a selected administrator should make changes in Maker mode Gas detection is not possible while in Maker mode To exit and return to normal ope...

Page 25: ... will be displayed 7 To change another alarm set value repeat steps 3 to 6 8 To end the procedure press and hold the POWER button for three seconds to turn off the unit 9 Press and hold the POWER button for three seconds to restart the unit in normal operation mode Check the alarm set values Refer to 7 3 3 Full Scale and Alarm Set Value Display If the alarm set value change is not successful the u...

Page 26: ...r adjustment gas calibration V 4 Sensor replacement V Every 5 years Important Notice for Maintenance In order to ensure the reliability of the gas detector it is vital to perform periodic air adjustment on the gas sensor It is highly recommended that a maintenance contract with a local New Cosmos representative be made for the performance of scheduled adjustment and replacement Perform an alarm te...

Page 27: ...tion or daily check the sensor needs to be replaced Contact your New Cosmos representative for sensor replacement Even if the detector is unused for a long period of time replace the sensor 5 years from the purchase date Contact your New Cosmos representative for sensor replacement fees apply NOTE Air adjustment should be performed by qualified technician only For air adjustment contact your New C...

Page 28: ...ings on cover and case match 6 Set the main power switch to the off down position to turn off the main power 7 Pull and detach the cover from the case Turn off the detector s main power to avoid electric shocks CAUTION 2 1 3 4 Cover and case are connected with connector cable CAUTION Use a CR2032 lithium battery coin type for clock battery CAUTION Case Cover Take care to prevent breaking the conne...

Page 29: ...switch to the on up position to turn on the main power 12 Reverse step 5 Slide the cover down by holding it by the sides to close it 13 Open the screw cover Tighten the two fastening screws 14 Close the screw cover CAUTION Secure the cover by tightening the two fastening screws Proper gas detection is not possible if the cover is not tightly closed Part A Top of cover 9 Replace clock battery Engag...

Page 30: ...7 1 Precaustions before Use Maintenance icon displayed on LCD and gas concentration value and _ _ _ _ displayed alternately Product is in Maintenance mode Switch Maintenance mode to OFF 7 4 2 Switching Maintenance Mode On Off No audio alarm Product is in Maintenance mode Switch Maintenance mode to OFF 7 4 2 Switching Maintenance Mode On Off Incorrect alarm set value Check the alarm set value 7 3 3...

Page 31: ... for three seconds to turn off the detector After a few minutes turn the detector on again If the unit does not return to normal operation contact your New Cosmos representative for repair 7 2 Operating Procedure E S1 E S2 or E S3 displayed on LCD Sensor failure Other than the above Microcomputer malfunction due to noise Turn off and on the detector If the unit does not return to normal operation ...

Page 32: ...4 mA Fault status 0 9 mA or below Current sensing resistor must be 300Ω or less including a wiring resistance Gas alarm relay contacts in two stages Dry normally open default or close contacts latching type Selectable to self resetting default or manual resetting at the time of order Max load 2 A at 30 VDC resistance load Fault alarm relay contact Dry normally open default or normally close contac...

Page 33: ...quake storm and flood lightning extreme climate abnormal power supply voltage excessive electromagnetic interferences or other acts of God 3 Failures and damages resulting from repair and or modification by non New Cosmos certified technicians 4 Consumables and failures and damages resulting from improper consumable replacement 5 Other failures and damages not attributable to the manufacturer 12 E...

Page 34: ...by the addition of an optical filter which filters out all light outside of the wavelength that target gas molecules can absorb Typical model of NDIR is shown below The infrared radiation from the infrared light source 1 is chopped by the light regulator 2 The infrared light passes thru the windows 3 and cell 4 to the optical filter 5 which allows only certain wavelengths to pass to the infrared s...

Page 35: ...ntration falls below or above when the alarm set value is the lower limit the gas alarm set value after an alarm has been signaled relevant alarm lights gas alarm icon and alarm relay contacts will automatically return to their normal positions statuses Manual resetting Gas alarm clearance method Even if the gas concentration falls below or above when the alarm set value is the lower limit the gas...

Page 36: ...cates separate collection of waste electrical and electronic equipment in the EU countries This product contains two Lithium batteries Specific battery information is given in this instruction manual Batteries must be recycled or disposed of properly At the end of its life this product must undergo separate collection and recycling from general or household waste Please use the return and collecti...

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Page 40: ...9 01 June 2019 1 Additional copies of this instruction manual may be purchased Contact New Cosmos or its authorized representative for ordering Authorized representative Manufacturer NEW COSMOS ELECTRIC CO LTD 2 5 4 Mitsuya naka Yodogawa ku Osaka 532 0036 Japan http www new cosmos co jp ...

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