設置型硫化水素ガス警報器TK-303
Contents
1. alarm buzzer sound be cut off by pushing RESET switch And the buzzer sounds again when the gas content increased once after recovered less than alarm setting level 3 6 4 Alarm lamp cancel The alarm lamp can be cancelled by pushing RESET switch after gas content recovered to less than alarm setting level While the gas content exceeding alarm setting level the alarm lamp can not be cancelled when pushing RESET switch Alarm Hold Function 3 6 5 Alarm output function The alarm output contact linking with alarm lamp operation There are alarm buzzer linking type by optional request 3 6 6 Recommendation of perio2. 4mA RS 40mV the of atomosphere is clean set the ZERO ADJUSTMENT 4mmA adjuster potentiometer of Sensor PCB for Loop Current 4mA by observation voltage drop of RS 10 Q to be 40mV In the case of possibility of some content of H2 gas at atomosphere ZERO adjustment shoud be done by using fresh air with Gas Test Adaptor 3 4 CONFIRMATION of ALARM FUNCTION 200ppm RESET
3. 2 core cable Twist pair or shield type 5 Weight 1Kg Approx 1 5Kg with drip proof cover 3 Direction for Use 3 1 Wiring 98TO03 1 CER 98T003 2 Connect the Monitor with Detection Unit according to wiring diagram as DWG No 98TO03 1 In the case of Intrinsic Safety Application please refer to the DWG No 98T003 2 3 2 POWER ON ON POWER DIMIMER 5 Turn the POWER SWITCH to ON side after confirmed power source Then POWER lamp will bright ON The brightness of power lamp are changeble for darkness by using DIMMER SWITCH which located on the front panel After power supplied the Meter Indicator will show some value please wait at least 5 minutes until stable operation 3 3 Zero Adjustment
4. Hydrogen Gas Alarm TK 303 4 20mA gt 4 20 Transmitter system INSTRUCTION MANUAL Please read this manual before installation operation SATO SHOUJI INC 044 738 0622 FAX 044 738 0623 211 0063 1 403 5 http www ureruzo com http satotech com TK 303 4 20mA 2 9907 1 Compositions NO 2 Parts Name 2 Qty Remark 3 8 Model 303 20 H2 DWG No 95N151 Monitor _ Model 10 7 4 20 ol f DWG No 98U008 Detection Unit __ _ Driver adjustment Instruction Manual o _ 2 Specifications General 1 Model 303 4 20 H2 2 Measuring Gas Hydrogen H2 amp Measuring Range 0 1000 Monitor Unit 1 Installation
5. ALARM FUNCTION possible to be confirmed by use TEST SWITCH which located on the inside of Monitor Unit When pressed this switch Meter Indicator move up side and when the Meter Indicator exceed alarm setting level 200ppm alarm lamp and buzzer flick on and alarm contact make on After confirmed alarm functions press the RESET switch for clear alarm conditions After proceeded above process this equipment are ready working In the case of needs for calibration please carry out process as follows 9 3 5 Calibration 3 5 1 Preparation the first Calibration gas should be prepared Zero Gas Fresh Air which does not contain H2 gas Calibration Gas H2 Air Nirrogen mixtured gas which confirmed content 3 5 2 Calibration Procedure Fit the Gas Test Adaptor on the sensor
6. Wall Installation 2 Accuracy 30 Within 30 of Alarm Level Alarm Level Normal 200ppm Adjustable 4 Alarm Accuracy 30 Within 30 of alarm level 5 Responce 90 30 Within 30sec at 90 indication 6 Alarm Display Red LED and Buzzer Flick action 7 Power Source 100 10 50 60 2 Power Consumption 7 Operate Conditions 0 40 90 RH Less than 90 RH 1 Sensor 2 2 core cable Twist pair or shield type 11 Weight 1 5 12 Alarm Output 1 A Relay contact 1 Detection Unit 1 1 10 7 4 20 2 Principle EIectrochemnical Gas Sampling Dusion 4 Sensor 2
7. Connect the rubber tube for Gas Test Adaptor 100cc Put the Zero Gas by 100cc min flow rate 3 ZERO 4mA 0 After minutes Zero adjustment should be done by using ZERO ADJUSTER 4nnA of Sensor PCB 100cc Put the Calibration Gas by 100cc nnin flow rate 3 SPAN 20mA After 3 minutes Span adjustment should be done by using SPAN ADJUSTER 20mA of Sensor PCB After finished calibration disconnect the Test Adaptor 3 6 Operations 3 6 1 General Operation POWER Oppm Oppm 13 5
8. case of normal condition the POWER lamp light and the needle of Meter Indicator shows about Oppm If the indication value does not satisfy please out calibration process according to 3 5 of this manual 3 6 2 Alarming condition H2 200ppm ALARM When gas content exceed alarm setting level H2 200ppm the ALARM lamp flick and buzzer sounds on The alarm output relay contact operate at same time The increasing term of toxic gas is one of the important item to keep the human helth So when high content alarming please escape first and carry out countermeasure for removing source of gas leakage 3 6 3 Buzzer sound cut off RESET
9. 100cc Put the Calibration Gas into sensor by using Gas Test Adaptor under flow rate 100cc min 4 4 9 68 0 1000 ppm 0 ppm 4mA 1000 ppm 20mA 500 ppm 500 1000 20 4 12 0mA 120mV Before reading Tester Indication target D C voltage Loop Current must be calculated according to gas concentration Example the case of concentration is 500ppm 4mA at Oppm 20mA at 1000ppm So D C current should be 12 0mA means voltage drop will be 120mV 2mV Set D C voltage value for target value 2mV Set the SPAN adjustment of Monitor at same time 4 4 10 After finished
10. s Remove the old sensor from after take off the ass y from chamber Insert the new sensor for then put into ass y for chamber as last Please check the ability by below procedure 4 4 Confirmation of Sensor Ability 4 4 1 98U008 Confirm the wimng and install condition before power switch ON Refer with drawing No 98 U008 4 4 2 30 4 4 3 4 4 4 4 4 5 4 4 6 4 4 7 4 4 8 Turn the power switch to side then wait 30 minutes until stable operation Prepare the Digital D C mV Tester and Zero Gas Calibration Gas Gas Test Adaptor 98U0
11. Refer to manual 3 4 case of no good Alarm setting level alarm function confirmation repair or adjustment 3 3 month Calibration by using testing gas repair or replace sensor case of good 3 5 Refer to manual 3 5 4 2 Sensor Life 2 2 3 This sensor have the expect for two 2 years but sensitivity will decrease 2 month maximum So there are need calibration once per three month at least In the case of calibration when coul not calibrate there need sensor replacement for new one according to below process 4 3 Sensor Replacement OFF Turn the power switch to OFF side Take off the cover of Detection Unit disconnect the sensor connector
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13. checking remove the Gas Test Adaptor from chamber 4 4 11 Wait until meter needle shows Zero 0 position under air condition 5 Appendix 5 1 Cross Sensitivity Data This sensor exhibit responce to certain gases sample other than the target gas Gas 2 Conc 7HYT Output Carbon mono Oxide 300ppm lt 3ppm _ Hydrogen Sulphide lt 3ppm Sulpher di Oxide 5ppm Nitric Oxide 5 55 10ppm M Nitrogen di Oxide Sppm Chlorine 1ppm Hydrogen Cyanide 10ppm Hydrogen Chloride Ethylene s0ppm SEIKI CO LTD TEL 81 44 722 2000 FAX 81 44 722 7460 3 239 2 3 239 2 Kosugi Nakahara Kawasaki _4 00186 15 19 1w suea 02 E0 Y41 01 70 0 0 193 00 31111 ON DMG 017 02 9
14. 08 RS Prepare the Digital mV Tester as drawing 980008 to measure the voltage drop of RS 40mV 4 mA Read out the D C voltage after confirmed none target gas condition It will show approximately 40mV as Loop Current 4mA 100cc there are any target gases put the fresh air into sensor by using Gas Test Adaptor and Gas Bag Please keep flow rate for 100cc min 40 2mV While fresh air condition adjust the ZERO adjustment potentiometer on sensor to get 40 2mV Set the ZERO adjustment of Moniotr at same time
15. dical maintenance In order to keep quahty of this Gas Alarrn system for many years please try to have checked by manufacture or by our distributers once year 4 MAINTENANCE 4 1 Maintenance Items and Period Ability Check items as below tables When result was no good condition please repair or replace parts as soon as possible Check Items Direction for Check Measures Check Interval 3 2 Power lamp confirmation Refer to manual 3 2 Re confirm Power source once a day 3 3 Confirmation of Meter Refer to manual 3 3 Zero Adjustment once a day indication for about Oppm 3 4 6 once 6 month
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