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PT2E-2525

Smart Transmitter/Gas Detector Head

SD-1DGH-AS

Operating Manual

(PT2E-170)

(PT2-170)

Содержание PT2-169

Страница 1: ...PT2E 2525 Smart Transmitter Gas Detector Head SD 1DGH AS Operating Manual PT2E 170 PT2 170...

Страница 2: ...4 6 How to tube 26 5 How to Operate 27 5 1 Preparation for start up 27 5 2 Basic operating procedures 28 5 3 How to start the detector 29 5 4 Modes 31 5 5 User mode 32 5 6 Flow Rate Adjustment 35 5 7...

Страница 3: ...0 to 2000ppm as examples such as examples of LED display 1 2 Purpose of use This detector is a fixed type gas detector head that detects leak of combustible toxic gases and performs the alarm activati...

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Страница 5: ...d 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 lo...

Страница 6: ...rol circuit securely connect it to a protective grounding circuit Tubing The detector is designed to draw gases around it under the atmospheric pressure Be sure that excessive pressure is not applied...

Страница 7: ...y monitor the temperature humidity of the sampling point to prevent condensation inside the tube In particular when detecting a gas which is dissolved into water and corrodes contacted materials such...

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Страница 11: ...ave a gas detector head SD 1DGH incorporated in the sampling device The internal tubing required for SD 1DGH has been arranged prior to shipment CAUTION Use the supplied dedicated control key to opera...

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Страница 13: ...sed to switch menus 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 s...

Страница 14: ...alarm 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 sta...

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Страница 16: ...time users but also the users who have already used the product must follow the operating precautions Ignoring the precautions may damage the detector resulting in inaccurate gas detection 4 2 Precau...

Страница 17: ...ntenance or where the detector cannot be removed because tubes or racks prevent access to it Do not install the detector in a place where maintenance involves dangers for example near a high voltage c...

Страница 18: ...ormation on how to use a lightning arrester please contact the manufacturer Grounding In addition to lightning there are more sources of surge noise To protect units from these noise sources the units...

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Страница 21: ...nduit must be connected to a grounding circuit When stranded wires are used prevent wires from contacting each other Use the dedicated handling lever to wire Use appropriate cables to wire 4 5 How to...

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Страница 25: ...grounding wire use cable lugs to safely connect it to a grounding terminal without looseness or twist Use ring terminals to connect the grounding terminal with the ground and use the grounding wire w...

Страница 26: ...under the atmospheric pressure Be sure that excessive pressure is not applied to the sampling inlet and outlet GAS IN GAS OUT of the detector Detected gases must be exhausted from the detected gas ex...

Страница 27: ...nnected to external device properly Check that the power supply voltage is compliant with the specifications Because the external contact may be activated during the adjustment take measures to preven...

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Страница 30: ...plied The required warm up powered time depends on the unpowered time for the sensor The time shown in the table shown below must be met Unpowered time Guidelines for warm up powered time 24 hours or...

Страница 31: ...ment 2 1 Perform the zero adjustment Span Adjustment 2 2 Perform the span adjustment Zero Span Initialization 2 3 Initialize zero span values Environmental Setting 2 4 Used for various environmental s...

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Страница 36: ...ncentration 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...

Страница 37: ...main valve of the gas and then check that the gas concentration reading dropped Access the gas leak point equipped with a protective gear to avoid dangers caused by possibly remaining gases and check...

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Страница 39: ...reading Therefore the reading might be fluctuated around zero even in a normal environment This function obscures influences by environmental changes and interference gases around zero that have no m...

Страница 40: ...aintain the performance as a safety unit Maintenance item Maintenance content Daily maintenance Monthly maintenance Regular maintenance Power Supply Check Check that the power lamp lights up Concentra...

Страница 41: ...bnormalities Checks the flow rate by using an external flow meter to verify the correctness of the flow rate indicator on the detector If the flow rate is incorrect performs the flow rate adjustment F...

Страница 42: ...ize zero span values Environmental Setting 2 4 Used for various environmental settings 2 4 0 Sensor Power Supply ON OFF 2 4 1 INHIBIT Setting 2 4 2 Alarm Setpoint Setting 2 4 3 Alarm Delay Time Settin...

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Страница 44: ...ous Electrical Settings Display Display various electrical settings This is not used by the user 2 6 Enter the factory mode This is not used by the user 2 7 Return to the user mode rET is displayed Pr...

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Страница 54: ...s Replacement intervals Quantity pieces per unit Remarks 1 Guard assembly 6 months 3 8 years 1 2 Aspirator cap 6 months 3 8 years 1 The operation must be checked after replacement by a qualified servi...

Страница 55: ...der 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 8 2 Procedures...

Страница 56: ...y system Provide the rated voltage Take measures such as checking or adding the UPS power supply line filter and insulation transformer Cable abnormalities open circuit not connected short circuit Che...

Страница 57: ...cannot be eliminated completely For information on actions such as removal filter please contact RIKEN KEIKI Disturbance by noise Turn off and restart the detector If such a symptom is observed frequ...

Страница 58: ...ed Gas alarm pattern Auto reset Fault alarm self diagnosis System abnormalities sensor abnormalities Fault alarm display FAULT lamp on yellow detail display Fault alarm pattern Auto reset Alarm contac...

Страница 59: ...s 59 SD 1DGH AS External dimensions Approx 400 W x265 H x102 D mm Weight Approx 5 6 kg Outer color Munsell 7 5BG5 2 When a half union for gas IN side is changed check also the external filter IN OUT d...

Страница 60: ...10 Product Specifications 10 1 List of specifications SD 1DGH AS 60 Adapter A NPT1 2 Adapter B NPT3 4...

Страница 61: ...ormalities Fault alarm display FAULT lamp on yellow detail display Fault alarm pattern Auto reset Alarm contact No voltage contact 1a de energized energized in response to an alarm or energized de ene...

Страница 62: ...10 Product Specifications 10 1 List of specifications SD 1DGH AS 62 Outline Drawings...

Страница 63: ...Detection principle Semiconductor Type Metal dioxide can measure gas concentration based on changes in the electric conductivity of semiconductor caused by gas adsorbed on its surface RL Load resista...

Страница 64: ...of the detection range ppm A concentration unit that means part per million of the combustible gas to be detected Calibration Adjusts the readings to the calibration gas concentration value by using t...

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