background image

10 Product Specifications

 

10-2. Detection principle 

 

- 46 - 

 

10-2. Detection principle 

 
[Catalytic Combustion Type] 
 
When a combustible gas burns on the surface of a oxidation catalyst, the catalytic combustion type sensor 
considers resultant combustion heat as temperature and resistance changes in the platinum wire coil, and 
measures their gas concentrations. 
This sensor detects any combustible gases. The detection range is from zero to the lower explosive limit. 
When a high-concentrated gas over the lower explosive limit comes into contact with the sensor, it may be a 
break. 
 

 

 

Содержание GP-1DGH

Страница 1: ...PT2E 2195 Smart transmitter Gas Detector Head SD 1 TYPE GP S Operating Manual PT2E 160 PT2 160...

Страница 2: ...her units we shall not be responsible for any malfunctions 4 The gas sensing part of the gas detection sensor installed in this detector is made of metal porous sintered alloy permeated with an oxidat...

Страница 3: ...ation procedure 16 4 6 How to wire 18 5 How to Operate 22 5 1 Preparation for start up 22 5 2 Basic operating procedures 22 5 3 How to start the detector 23 5 4 Modes 24 5 5 User mode 25 5 6 How to ex...

Страница 4: ...detector is a safety unit not an analyzer or densitometer which performs quantitative qualitative analysis measurement for gases Please fully understand the features of the detector before using it s...

Страница 5: ...some specification depends on standard and explosion proof certificate Please confirm the detector specification before using Please refer Declaration of Conformity that is at the end of this manual...

Страница 6: ...by RIKEN KEIKI Do not apply a strong force or shock to the window plate The explosion proof performances may be deteriorated due to damages The explosion protection conditions for the detector is low...

Страница 7: ...ts When seeming defects are found in the protective functions such as protective grounding do not start the detector External connection Before connecting the detector to the external control circuit...

Страница 8: ...he settings if not necessary Disassembling Modifying the detector will invalidate the warranty of the performance Changing the settings without understanding the specifications may cause alarm malfunc...

Страница 9: ...rms and one by the fail alarm ATEX IECEx Specifications Technical Data Protection Method Flameproof enclosure d Certificate Numbers IECEx KEM 10 0036X KEMA 10ATEX0083 X Group II Category 2G Type of Pr...

Страница 10: ...ent Temperature 20 C to 53 C Electrical Data Supply voltage DC24V 10 125mA Analog signal output DC24V 25mA Contact output Contact capacity AC250V 0 5A Load resistance DC30V 0 5A Load resistance Applic...

Страница 11: ...s detector and standard accessories 9 3 Product Components 3 1 Gas detector and standard accessories Main Unit including a cable gland or an adapter ATEX IECEx Specification TIIS Specification Adapter...

Страница 12: ...or change a value DOWN 5 Power lamp Power lamp Detection mode It lights up in green Maintenance mode It blinks in green 6 Alarm lamp Alarm lamp It lights up in red when the alarm setpoint value is rea...

Страница 13: ...contact ALARM or 2 Fault contact FAULT or 3 Select either gas alarm or contact ALARM FAULT Contact activation De energized De energized at a normal state ON ALARM Closed contact at an alarm state Ala...

Страница 14: ...IIS Specifications 20 to 53 C Do not install the detector in a place exposed to direct sunlight or sudden changes in the temperature When selecting installation points avoid a place where it is expose...

Страница 15: ...utside the detector Others Do not use it with a power supply of large power load or high frequency noise Example of actions Use a line filter to avoid the noise source if necessary Introducing protect...

Страница 16: ...arm contact referring to the following information Relay it with an external relay at a lower voltage of 100 VAC or below contact amplification At the same time the surge absorbing part SK1 suitable f...

Страница 17: ...actured by NOK KLUBER If you can not prepare the specified grease use one that meets the following requirements 1 Material does not harden due to deterioration 2 Volatile solvent free 3 Material does...

Страница 18: ...nd Then apply grease specified by RIKEN KEIKI Tightens Cable gland and then tightens hexagon socket set screw M4 6 and fix cable gland Adapter NPT1 2 WARNING Do not replace parts at your sole discreti...

Страница 19: ...KLUBER If you can not prepare the specified grease use one that meets the following requirements 1 Material does not harden due to deterioration 2 Volatile solvent free 3 Material does not cause corro...

Страница 20: ...less than 12 5 13 14 12 8 From 12 5 to less than 13 0 13 5 14 13 8 CAUTION Be careful not to damage the internal electronic circuit when wiring In addition be careful not to apply stresses on the dete...

Страница 21: ...ns of terminal plate Rated voltage 250 VAC Rated current 12 A However it depends on cables to be used Connection conditions Cables 0 25 2 5 mm2 Bare wire length 8 9 mm Connecting tool Dedicated handli...

Страница 22: ...l Plate When cables are connected to the connectors use the dedicated lever or a flathead screwdriver to do it as shown below NOTE How to Use the Dedicated Handling Lever To check whether the wire is...

Страница 23: ...ot forget to connect it to a grounding terminal For stable operation of the detector and safety it must be connected to a grounding terminal Do not connect the grounding wire to a gas pipe The groundi...

Страница 24: ...nding circuit Check that the wiring is connected to external device properly Check that the power supply voltage is compliant with the specifications Because the external contact may be activated duri...

Страница 25: ...or and alarm deactivation Power on Initial clear approximately 25 seconds Detection mode WARNING When the detector enters other mode from the detection mode while an alarm is activated the alarm is re...

Страница 26: ...m the zero adjustment Setting Display 1 2 Display various setting values Switch to maintenance mode 1 3 This is not typically used by the user Maintenance mode has important setting items of the detec...

Страница 27: ...he adjustment is completed never fail to press MENU ESC key to return to the detection mode If the detector remains in the user mode it automatically returns to the detection mode in ten hours Show Va...

Страница 28: ...o dangers when the gas leaks Zero Adjustment 1 1 This is used to perform the zero adjustment NOTE If the zero calibration failed since the zero point was significantly fluctuated from around zero it r...

Страница 29: ...ed due to the gas alarm or the fault alarm WARNING When the detector is turned off an alarm may be activated on the upper central system Before turning off the detector INHIBIT point skip on the upper...

Страница 30: ...ation Display In case of over the detection range Over Scale is displayed on the LED Power Indicator Lamp POWER Green During operation this lights up continuously Alarm Indicator Lamp ALM Red It light...

Страница 31: ...s to fix the gas leak 6 2 Fault alarm activation A fault alarm is triggered when the detector detects abnormalities After a fault alarm is triggered the fault lamp yellow lights up and an error messag...

Страница 32: ...Test Mode Output ON setting 4 20 mA concentration output Output OFF setting 4 mA 10 User Mode 4 20 mA concentration output 11 Maintenance Mode 4 mA Fixed Example of Gas Concentration and External Outp...

Страница 33: ...e fluctuation of the reading under the setting value indicating zero NOTE The suppression function is factory set The standard setting value is 2 FS In the user mode this function is disabled and the...

Страница 34: ...form the zero adjustment after ensuring that no other gases exist around it Alarm Test Inspect the alarm circuit by using the alarm test function Span Adjustment Perform the sensitivity calibration by...

Страница 35: ...or clogged dust filter Alarm Test Inspects the alarm circuit by using the alarm test function Checks the alarm lamps Check each activation of ALM Checks the external alarm Checks the activation of the...

Страница 36: ...libration gas Zero adjustment gas Span adjustment gas collected in a gas sampling bag Gas sampling bags Zero Adjustment 2 1 This is used to perform the zero adjustment NOTE Before starting the zero ad...

Страница 37: ...ro adjustment has not been completed 2 1 Press SET key Current Concentration Value Display Press SET key to perform the zero adjustment Under Zero Adjustment CAL is displayed Wait for a while until th...

Страница 38: ...ter the correction the gas sensor life has expired After turning off the power supply please contact our overseas sales department or local representatives CAUTION Before starting the span adjustment...

Страница 39: ...unit with sensor When put on the sensor do NOT scratch mating portion of side of the sensor and adapter inside 5 After replacing a sensor put on a sensor guard and set screw firmly When installing the...

Страница 40: ...fications of grease manufacturer Replacement of Regular Replacement Parts List of recommended regular replacement parts No Item Maintenance intervals Replacement intervals year Quantity pieces unit 1...

Страница 41: ...ust be stored under the following environmental conditions In a dark place under the normal temperature and humidity away from direct sunlight In a place where gases solvents or vapors are not present...

Страница 42: ...se etc Turn off and restart the detector If such a symptom is observed frequently take appropriate measures to eliminate the noise Sensor abnormalities E 1 The sensor is not connected or improperly co...

Страница 43: ...local representatives Disturbance by noise Turn off and restart the detector If such a symptom is observed frequently take appropriate measures to eliminate the noise Sudden change in the environment...

Страница 44: ...ntact 1a de energized energized in response to an alarm or energized de energized in response to an alarm Contact capacity 250 VAC 0 5 A 30 VDC 0 5 A resistant load Transmission system 3 wire type ana...

Страница 45: ...10 Product Specifications 10 1 List of specifications 43 Weight Approx 2 0 kg Outer color Munsell 7 5BG5 2 Outline Drawings Adapter A NPT1 2...

Страница 46: ...rgized in response to an alarm or energized de energized in response to an alarm Contact capacity 250 VAC 0 5 A 30 VDC 0 5 A resistant load Transmission system 3 wire type analog transmission common c...

Страница 47: ...10 Product Specifications 10 1 List of specifications 45 Outline Drawings Cable gland G3 4...

Страница 48: ...ytic combustion type sensor considers resultant combustion heat as temperature and resistance changes in the platinum wire coil and measures their gas concentrations This sensor detects any combustibl...

Страница 49: ...bration gas concentration value by using the calibration gas Zero suppression A function to cut off the specific drifting that the sensor has Alarm delay time A function which temporarily suspends act...

Страница 50: ...0 First issue 2 16 2018 1 Declaration of Conformity 12 23 2019 2 Declaration of Conformity 4 1 2020 3 Safety information Declaration of Conformity 8 1 2020 4 Safety information Declaration of Conformi...

Страница 51: ......

Отзывы: