Suitability for Use USER`S MANUAL
Contents
1. 2 Internal Connection Type G9SE 201 13 3 OOTO ll Safety A Power nput1 Reset L_ a supply Feedback Safety circuit Input Outputs Safety instanta nput 2 Auxiliary neous Output lt 1 4 A2 T21 X1 14 X24 Type G9SE 401 A1T14HT 12 13 4HT32HT3 13 33 43 Safety Power Input 1 Reset Safety supply __ Feedback Outputs circuit Input instanta Safety neous Input 2 Auxiliary Output amp Type G9SE 221 To 73 5 A1T11 32AHT3 13 X23 X37 X47 Safety _ Safety Outputs Power input d Reset SSS supply Feedback neous circuit Input Safety Safety Outputs t ey Input 2 Auxiliary OFF Output delay t 4 A QOC Fy 14 24 38 48 3 Dimensions ae 109 Two 4 2 dia or M4 4 kE SS F i a 7 I E j 8 i 1 A Mounting holes Type G9SE 201 Type G9SE 401 9 9 Type G9SE 221 To mm 4 Ratings and Specifications Ratings Item G9SE 201 G9SE 401 G9SE 221 To Rated supply voltage 24VDC fe Operating voltage range 15 to 10 of rated supply voltage Rated power consumption See Note1 3 W max 4W max 4W max Safety output Contact output Outputs OFF delayed S2. s application or use of the Product At Buyer s request Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product machine system or other application or use Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer s application product or system Buyer shall take application responsibility in all cases NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS AND THAT THE OMRON PRODUCT S IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM OMRON OMRON Corporation Manufacturer Shiokoji Horikawa Shimogyo ku Kyoto 600 8530 JAPAN Regional Headquarters OMRON EUROPE B V Representative and Importer in EU Wegalaan 67 69 2132 JD Hoofddorp The Netherlands OMRON SCIENTIFIC TECHNOLOGIES INC 6550 Dumbarton Circle Fremont CA 94555 U S A Tel 1 510 608 3400 Fax 1 510 744 1442 OMRON ASIA PACIFIC PTE LTD No 438A Alexandra Road 05 05 08 Lobby 2 Alexandra Technopark Singapore 119967 Tel 65 6835 301 1 Fax 65 6835 2711 OMRON CHINA CO LTD Room 2211 Bank
3. IN2 OUT ouT1 OUT2 Expected causes of the faults Checking points and measures to take e Light up Safety inputs ON state 1 Mismatch between Safety input 1 and Safety input 2 OFF timing 1 Check the wiring from safety input devices to G9SE Or check the inputs sequence of safety input devices 8 Wiring Use the following to wire to G9SE Solid wire AWG24 to AWG16 0 25 to 1 5 mm Stranded wire AWG24 to AWG16 0 25 to 1 5 mm Strip the cover of wire no longer than 8 to 10 mm When using stranded wire insulated ferrule should be used Use below insulated ferrule But do not use ferrule terminals if G9SE is used as UL Listing Insert the strand or solid wire CU only directly into the holes on the terminal block Insulated ferrule AWG24 to AWG16 0 25 to 1 5 mm Crimp height H 2 0 mm max When using the twin type ferrule use equal sized wires and preferred insulated ferrule The twin type ferrule should not be above the adjoining release hole H Width W 2 7 mm max Conductor length 8 to 10 mm Recommended insulated ferrule manufactured by Phoenix contact Type Wire size Cross section mm AWG Single Al 0 34 8TQ 0 34 22 Al 0 5 10WH 0 5 20 Al 0 75 10GY 0 75 18 Al 1 10RD 1 0 18 Al 1 5 10BK 15 16 Twin _ AITWIN2x0 75 10GY 2x0 75 How to insert solid wire and insulated ferrule The wi
4. correct 14 To determine safety distance to hazards take into account the delay of Safety outputs caused by the following time 1 Response time 2 Preset off delay time and accuracy of off delay time 15 Before G9SE outputs become in ON state non regular self diagnosis for Safety output circuit may be executed On this occasion the operating noise of internal relays occurs 16 In the place subjected to strong vibration or shock mount G9SE NS to a mounting surface with screws and the screw mounting attachment Otherwise G9SE may not function properly due to vibration or mechanical shocks out of the rated values caused by sympathetic vibration of G9SE and the mounting parts and so on Screw mounting SY attachment Insert Way Emergency stop switch Use approved devices with Direct Opening Mechanism complying with EC EN 60947 5 1 Door interlocking switch Use approved devices with Direct Opening Mechanism complying with Limit switch EC EN 60947 5 1 and capable of switching micro loads of 24VDC 5mA Safety Sensor Use approved devices complying with the relevant product standards regulations and rules in the country where it is used Relay with forcibly guided Use approved devices with forcibly guided contacts complying with contacts EN 50205 For feedback purpose use devices with contacts capable of switching micro loads of 24VDC 5mA Contactor Use contactors with
5. different poles 1 500 VAC of output Insulation resistance 100 MQ Min Frequency 10 to 55 to 10 Hz Vibration resistance See Note6 Amplitude 0 35 mm half amplitude 0 7 mm double amplitude Mechanical Destruction 300 mi shock resistance i 2 See Note7 Malfunction 100 m s Surrounding Air Temperature 10 to 55 C No freezing or condensation Ambient humidity 25 to 85 RH Degree of protection IP20 Weight approx 150 g approx 180 g approx 180 g Note 1 Power consumption of loads not included 2 This does not include the bounce time of internal relay in the G9SE 3 This is in normal operation When executing non regular self diagnosis for Safety output circuit G9SE operating time become 500 ms max 4 This is initial value using the voltage drop method with 1A at 5VDC 5 Use for each contact output an 8A fuse that conforms to IEC 60127 as a short circuit protection device This fuse is not included with the G9SE 6 Condition G9SE is mounted to mounting surface with screw and the screw mounting attachment In the case of DIN rail mounting mount DIN rail with G9SE to the place without big vibration Amplitude guideline Less than 0 15 mm half amplitude 0 3 mm double amplitude Continued on back page itability for Use Omron Companies shall not be responsible for conformity with any standards codes or regulations which apply to the combination of the Product in the Buyer
6. of China Tower 200 Yin Cheng Zhong Road PuDong New Area Shanghai 200120 China Tel 86 21 5037 2222 Fax 86 21 5037 2200 Contact www ia omron com Note Specifications subject to change without notice Wiring of inputs and outputs 5 Feedback T32 state signal must be input to T33 Otherwise Safety outputs cannot be in Signal Terminal ioe ee Description of operation Wiring Power A1 The input terminals for power supply Connect the power supply plus to the A1 supply A2 Connect the power source to the A1 and A2 terminal input terminals Connect the power supply minus to the A2 terminal Safety T11 To set Safety outputs in ON state HIGH 1 channel E ai input 1 state signals must be input to both of p T12 Safety input 1 and Safety input 2 Safety input Otherwise Safety outputs cannot be in ON state 2 channel Safety input Safety 721 input2 722 Reset 731 To set Safety outputs in ON state ON Auto reset Input T33 ON state See Note1 To set Safety outputs in ON state the Manual signal input to T32 must change from reset OFF state to ON state and then to OFF state Otherwise Safety outputs cannot be in ON state Safety 13 14 Turns ON OFF according to the state of Keep these outputs Open when NOT used output 23 24 safety inputs Feedback Reset inputs 33 34 During off delay state safety
7. to T11 and T12 2 Replace with a new product Blink 1 Failures involving the wiring of Safety input 2 1 Check the wiring to T21 and T22 2 Replace with a new product 2 Failures of the parts of the circuits of Safety input 2 Safety inputs ON state 1 Failures involving the wiring of 1 Check the wiring to T31 T32 and T33 Feedback Reset input Light Light 2 Failures of the parts of the circuits 2 Replace with a new product up up of Feedback Reset input Safety inputs OFF state Pa Qe A Lig ig Blink O off ix x 1 Failures of the parts or relays of the 1 Replace with a new product T T circuits of Safety Output Blink Blink 1 Mismatch of the two Off delay Time Preset Switches 1 Check both of the two Off delay Time Preset Switches The all indicators Blink 1 Supply voltage outside the rated value 1 Check the supply voltage to G9SE O The all indicators Light off 1 By excessive electro magnetic disturbance 2 Failures of the parts of internal circuits 1 Check the disturbance level around G9SE and its related system 2 Replace with a new product When indicators other than PWR indicator blink while PWR indicator lights up check and take needed measures referring to the following table After removing the fault turn both safety inputs to OFF state LED indicator PWR IN1
8. whole system No prevented AnRW y Input the signals to both of the Safety inputs T12 and T22 Input a signal to the Safety inputs T11 T12 and T21 T22 through switches with Direct Opening Mechanism When using limit switches at least one of them must have Direct Opening Mechanism And wiring must be done in a way that a short circuit between the wires of Safety input can be When connecting a Safety sensor with G9SE use a TYPE 4 safety sensor Be sure to connect the negative terminal of DC power supply to ground Use two Safety outputs e g 13 14 and 23 24 to construct the system In order to ensure sufficient failure detection it is mandatory to use G9SE only together with contactors or relays with forcibly guided contacts Input the signal through NC contacts of the contactors to Feedback Reset input T31 132 for manual reset or T31 T33 for auto reset Refer to 5 Examples of Application 7 Fault Detection When G9SE detects a fault LED indicators blink to show the information of the fault When PWR indicator blinks check and take needed measures referring to the following table And then apply supply voltage to G9SE LED indicator OUT2 Expected causes of the faults Checking points and measures to take PWR IN1 n2 OUT ouT1 Sll Blink 1 Failures involving the wiring of Safety input 1 2 Failures of the parts of the circuits of Safety input 1 1 Check the wiring
9. 00000 00O Type G9SE 221 To Examples of application Type G9SE 201 lt 2 channel emergency s Feedback loop op switch input Manual reset gt Note1 This example is corresponding to category 4 Device S1 S2 Emergency stop switch Reset switch KM1 KM2 Contactor 3 phase motor Power supply circuit Emitter Type G9SE 401 lt 2 channel safety sensor Auto reset gt Timing chart Emergency stop switch S1 Reset switch S2 KM1 KM2 NC contact KM1 KM2 NO contact Safety sensor Receiver Feedback loop Safety nput Power supply circuit Safety nput2 Reset Feedback Input Output Instant aneous Note1 This example is corresponding to category 4 Device Safety sensor KMI KM4 Contactor M1 M2 3 phase motor Type G9SE 221 TO Manual reset gt Lock A release signal fkm lt Guard lock safety door switch Mechanical Lock Safety limit switch inputs Note1 This example is corresponding to category 4 Device S1 S2 3 S4 KM1 KM2 M Safety limit switch Guard lock safety Reset switch Lock release switch
10. Contactor 3 phase motor door switch Mechanical Lock Feedback loop A Safety Input1 Power E supply circuit Safety Input2 Safety Output Instant aneous Reset Feedback Input Safety Output OFF delay Auxiliary output x PLC Motor controller Operation command Timing chart Timing chart Safety sesor outputs KM1 KM4 NC contact KM1 KM4 NO contact Safety limit switch S1 Guard lock safety door switch S2 Lock release signal Lock release switch S4 Stop signal Reset switch S3 KM1 KM2 N C contact KM1 KM2 N O contact Operation command Rotation of motor Guard closed gt opened TE l Guard can be opened k I OFF delay time 6 Performance level and safety category EN 1S013849 1 In the conditions shown in 5 Examples of Application G9SE can be used for the corresponding safety categories up to 4 and performance level PL up to e per IS013849 1 This does NOT mean that G9SE can always be used for the required category under all the similar conditions and situations Conformity to the categories must be assessed as a whole system When using G9SE for the safety categories make sure the conformity of the
11. Original instructions OMRON cu Type G9SE 201 Type G9SE 401 Type G9SE 221 T Safety Relay Unit English USER S MANUAL Thank you for purchasing G9SE Safety Relay Unit Please read and understand this manual before using the products Keep this manual ready to use whenever needed Only qualified person trained in professional electrical technique should handle G9SE Please consult your OMRON representative if you have any questions or comments OMRON Corporation 4022078 4 C EU EC Declaration of Conformity OMRON declares that G9SE series are in conformity with the requirements of the following EU EC Directives If you need a complete Declaration of Conformity please contact your Omron representative EMC Directive 2004 108 EC 2014 30 EU Machinery Directive 2006 42 EC Standards G9SE series are designed and manufactured in accordance with the following standards EN 1S013849 1 2008 PLe Category 4 IEC EN 60947 5 1 IEC EN 62061 SIL3 EN81 1 EN81 2 UL508 CAN CSA C22 2 No 14 GB14048 5 Precaution for Safe Use Meanings of Signal Words The following signal words are used in this manual Indicates a potentially hazardous situation which if not avoided will result in minor or moderate injury or may result in serious injury or death Additionally there may be significant property damage VAN INANING Meaning of Alert Symbols The following alert s
12. afety output 250VAC 5A 30VDC 5A resistive load Auxiliary output PNP transistor output Load current 100 mA DC max Specifications and performance G9SE 201 G9SE 401 G9SE 221 To Operating time OFF to ON state See Note2 100 ms Max See Note3 Response time ON to OFF state 15 ms Max Accuracy of OFF delay time Within plus or minus 10 of the set value Input current 5 mA Min ON voltage 11 VDC Min OFF voltage 5 VDC Max Inputs OFF current 1 mA Max Maximum cable length 100 m Max Reset input time 250 ms Min Contact resistance See Note4 100 mO Max Mechanical durability 5 000 000 operations Min Electrical durability 50 000 operations Min Contact alii z A outp ts Switching specification for AC15 240 VAC 2 A P Inductive load IEC EN60947 5 1 DC13 24 VDC 1 5 A Minimum applicable load 24VDC 4 mA Conditional short circuit current 100 A See Note5 IEC EN60947 5 1 Pollution degree 2 Over voltage category IEC EN60664 1 Safety output Class II the others Class I Impulse Between input withstand and output 6kV voltage Between 6 kV between 13 14 23 24 and 33 34 43 44 37 38 47 48 IEC EN different poles 4kV between 13 14 and 23 24 Insulation 60947 5 1 of output between 33 34 37 38 and 43 44 47 48 specification Between input 2 200 VDC _ and output Dielectric Between strength
13. ally when the length of DIN railing is short compared to the widths of G9SE 7 Wire correctly according to 8 Wiring 8 Use cables with length less than 100 m to connect to Safety Inputs Feed back Reset inputs respectively 9 GOSE may malfunction due to electro magnetic disturbances Be sure to connect the negative terminal of DC power supply to ground When using a DC power supply with light curtains use DC power supply which has no interruption by a power failure of 20 ms 10 This is a class A product In residential areas it may cause radio interference in which case the user may be required to take adequate measures to reduce interference 11 Do NOT mix AC load and DC load to be switched in the following terminals GOSE 201 between 13 14 terminal and 23 24 terminal GOSE 401 between 13 14 terminal and 23 24 terminal 33 34 terminal and 43 44 terminal GOSE 221 To between 13 14 terminal and 23 24 terminal 37 38 terminal and 47 48 terminal 12 Start entire system after more than 2s have passed since applying supply voltage to G9SE 13 Set the time duration of OFF delay Type G9SE 221 Tx 1 Set the time duration of OFF delay to an appropriate value that does not cause the loss of safety function of system 2 Set both of the two Off delay Time Preset Switches one each on the front and back to the same value When setting the different value it is detected as a fault After setting make sure G9SE operating time is
14. ce and Explanation of Each Parts Type G9SE 201 Type G9SE 401 Type G9SE 221 TO ec feo feat Om Dm Dmi e lee amp Ero DM tne peset Jour 22171 Ime preset 2avoc Ee lzavoc D 2avoc ne switch 0 2 94 0 8 OG Nis Power Su ey nes Ae hes ie Mal ir A Safety Input Ar Oay O Ay ZA 12 a Mi Safety Input2 69A a J Aa A za Ra RS Hiig 4 i ii Reset Feedback Oo Ma h Input O ay 8 Ary i Q S Auxiliary output O U O eal 5 h2 A Cea Sar aS f ic cp lal j Ei eq ie oy fOr Safety Outputs Instantaneous LED Indicators Safety Outputs OFF delay Marking Color Name Function Power supply Lights up while power is supplied PWR Green indicator Blinks corresponding to the occurring error Safety Input Lights up while high signal is input to T12 1 indicator Blinks when error relating to Safety input 1 occurs In2__ lorange Safety Input Lights up while high signal is input to T22 I 2 indicator _ Blinks when error relating
15. forcibly guided mechanism to input the signal to Feedback Reset input of G9SE through the NC contact of the contactor For feedback purpose use devices with contacts capable of switching micro loads of 24VDC 5mA Failure to open contacts of a contactor cannot be detected by monitoring its auxiliary NC contact without forcibly guided mechanism Other devices Evaluate whether devices used are appropriate to satisfy the requirements of safety category level Precautions for Safe Use 1 Use G9SE within an enclosure with IP54 protection or higher of IEC EN60529 2 When ready for wiring the power source shall be disconnected first Further at operating this unit do not touch the terminals in order to prevent an electrical shock 3 Do not apply any excessive voltage or current to the input or output circuit the G9SE Doing so may result in damage to the G9SE or cause a fire 4 Incorrect wiring may lead to loss of safety function Wire conductors correctly and verify the operation of G9SE before commissioning the system in which G9SE is incorporated 5 Do not apply DC voltages exceeding the rated voltages or AC voltages to G9SE 6 Use SELV PELV DC porwer supply satisfying requirements below to prevent electric shock DC power supply with double or reinforced insulation for example according to IEC EN60950 or EN50178 or a transformer according to IEC EN61558 DC supply satisfies the requirement for clas
16. ks G9SE may be damaged and may not function properly 2 Adhesion of solvent such as alcohol thinner trichloroethane or gasoline on the product should be avoided Such solvents make the marking on G9SE illegible and cause deterioration of parts 3 Conditions of storage Do not store in such conditions stated below 1 In direct sunlight 2 At ambient temperatures out of the range of 10 to 55 C 3 At relative humidity out of the range of 25 to 85 or under such temperature change that causes condensation 4 At atmospheric pressure out of the range 86 to 106 kPa 5 In corrosive or combustible gases 6 With vibration or mechanical shocks out of the rated values 7 Under splashing of water oil chemicals 8 In the atmosphere containing dust saline or metal powder and other conductive dusts G9SE may be damaged and may not function properly 4 At least 50 mm above top face of G9SE and below bottom face of G9SE should be available to apply rated current to outputs of G9SE and for enough ventilation 5 Mounting multiple units When mounting multiple units close to each other the rated current will be 3 A Do not apply a current higher than 3 A If the output current is 3 A or more make sure that there is a minimum distance of 10mm each between all adjacent G9SE units 6 DIN rail mounting Mount G9SE to DIN rails with attachments TYPE PFP M not incorporated to this product not to drop out of rails by vibration etc especi
17. outputs 43 44 renot able to turn ON off 37 38 Off delayed safety outputs Keep these outputs Open when NOT used delayed 47 48 See Note2 Safety Off delay time is set by off delay preset output switch When the delay time is set to zero these outputs can be used as instantaneous outputs Auxiliary X1 Outputs a signal of the same logic as Keep these outputs Open when NOT used output Safety outputs 1 Construct the safety system taking into account that in the automatically when Safety inputs 1 and 2 turn ON 2 When t he inputs of G9SE 221 To are restored during off de as below Depending on the reset mode Auto reset mod Auto reset mode Safety outputs turn ON ay time G9SE 221 To will operate e Outputs turn off after off delay time then immediately turns on Manual reset mode Outputs turn off after off delay time then turn on when reset input is given connecting Safety Sensors and G9SE In many case Safety Sensor outputs include the off shot pulse for its self test The following condition of test pulse is applicable as safety inputs for G9SE Off shot pulse width of the sensor during the ON state 640 us lt 640 us Max gt Terminal arrangement and LED indicators Type G9SE 201 PwR Dm Dn2 Jout Type G9SE 401 O O amp O O 000000000 000000000 000000000 O
18. re should be pushed into the terminal block straight No need to use the driver After inserting make sure wire is fastened on to terminal block ar Wire E How to release wire Use the following minus drive to release wire from terminal block And When releasing wire the power source should be disconnected first 1 Push the driver lightly into the taper of release hole 2 Pull out the wire while the driver is pushed into release hole 3 Pull out the driver Ae Q 7 RY Driver Precautions for Correct wiring Terminal block may be damaged 1 Not push the driver into the release hole straight 2 Not push the driver into the release hole by force of 30N and over 3 Not tip or twist the driver pushed into release hole Side Front 8 12 y 2 5mm max ote kl 0 4mm 2 5mm max Recommended driver Type SZFO 0 4mmx2 5mm manufactured by Phoenix contact Type XW4Z 00B manufactured by Omron
19. s 2 circuits stated in UL 508 7 The lifetime of G9SE depends on the conditions of switching of its outputs Be sure to conduct its test operation under actual operating conditions in advance and use it within appropriate switching cycles Apply protection circuitry against back electromotive force in case connecting inductive loads to safety outputs 8 Do not operate the G9SE with flammable or explosive gas An arc with operation and the heat of relay will cause a fire or an explosion 9 Do not drop G9SE to the ground or dismantle repair modify G9SE otherwise an electric shock may occur or the G9SE may malfunction It may lead to loss of its safety functions 10 Use protective device Fuse etc for short circuit protection and ground fault protection otherwise a fire may occur or the G9SE may malfunction 11 Auxiliary monitoring outputs are NOT safety outputs Do not use auxiliary outputs as any safety output Such incorrect use causes loss of safety function of G9SE and its relevant system 12 After installation of G9SE qualified personnel shall confirm the installation and shall conduct test operations and maintenance The qualified personnel shall be qualified and authorized to secure the safety on each phases of design installation running maintenance and disposal of system 13 A person in charge who is familiar to the machine in which G9SE is to be installed shall conduct and verify the installation 1 Appearan
20. to Safety input 2 occurs OUT ranae Safety Output Lights up while Safety outputs 13 14 23 24 33 34 43 44 are in ON state OUT1 IE indicator Blinks when an error relating to Safety output occurs OFF delayed E F Lights up while off delayed Safety outputs 37 38 47 48 are in ON state Safety Output OUT2 Orange ace Put IBlinks when an error relating to Safety off delayed solid state output occurs IN1 Orange Preset Switches only applies to Type G9SE 221 To Change the value of the preset switches only when G9SE is disconnected from power supply Name Function Value OFF delayed Presets OFF delay For Type G9SE 221 T05 time preset time duplicate O default setting value 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 1 0 1 5 2 0 2 5 3 0 4 0 5 0 s 2 41 For Type G9SE 221 T30 switch O default setting value 1 2 4 5 6 7 8 9 10 12 14 16 20 25 30 s 2 1 Set both of the two Off delay Time Preset Switches one each on the front and back to the same value When setting the different value it is detected as a fault 2 See following illustration for setting position of Off delay Time Preset Switch Make sure that the direction of cutting edge of preset switch is correctly pointed to the off delay time value which must be set 5 wl 4 Es cutting edge 0 252 0 8o 252 0 cutting edge OFF DELAY OFF DELAY ex 1 0 second off delay setting ex 2 1 5 second off delay setting
21. ymbols are used in this manual Indicates mandatory actions S Indicates prohibited actions Alert Statements ANTENIE Serious injury may possibly occur due to breakdown of safety outputs S Do not connect loads beyond the rated value to the safety outputs Serious injury may possibly occur due to loss of required safety functions Wire G9SE properly so that supply voltages or voltages for loads do NOT touch the Q safety inputs accidentally or unintentionally Serious injury may possibly occur due to loss of safety functions Q Use appropriate devices referring to the information shown below Controlling Devices Requirements 14 Perform daily and 6 month inspections for the G9SE Otherwise the system may fail to work properly resulting in serious injury Turn OFF the signal to Safety input and make sure G9SE operates without fault by checking the state of the LED indicator in inspection 15 Conformity to requirements of performance level is determined as an entire system It is recommended to consult a certification body regarding assessment of conformity to the required safety level 16 OMRON shall not be responsible for conformity with any safety standards regarding to customer s entire system 17 Dispose of the Units according to local ordinances as they apply Precautions for Correct Use 1 Handle with care Do not drop G9SE to the ground or expose to excessive vibration or mechanical shoc
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