Rki-instruments GD-70D Series Manual do Utilizador

Gas Detector Head GD-70D Series Operating Manual Request for the Customers • Read and understand this operating manual before using the detector

1 Overview 1-4. Names and functions for each part GD-70D - 10 - <Front Panel and Character LCD> ① MODE key U

1 Overview 1-5. Units description - 11 - GD-70D 1-5. Units description The detector consists of the following units. &l

1 Overview 1-5. Units description GD-70D - 12 - CAUTION • The sensor unit must be handled carefully to ensure quality as safety device. W

1 Overview 1-5. Units description - 13 - GD-70D Semiconductor type (SGU) • Before using the sensor unit, it needs to be warmed up for a sp

1 Overview 1-6. Block diagram GD-70D - 14 - <Wall-mounted Unit> 1-6. Block diagram <Electric Diagram>

1 Overview 1-6. Block diagram - 15 - GD-70D <Tubing Diagram>

2 Installation 2-1. Requirements GD-70D - 16 - CAUTION • This is a precision instrument. Because the detector may not provide the specifi

2 Installation 2-1. Requirements - 17 - GD-70D Do not install the detector in a place exposed to direct sunlight or sudden changes in the temperatu

2 Installation 2-1. Requirements GD-70D - 18 - Introducing protective measures against lightning If cables are installed outside the factory/pl

2 Installation 2-2. Installation of detector - 19 - GD-70D GD-70D SK1 SK2 Power supply Pow

Preface GD-70D - 2 - Preface Thank you for choosing our gas detector head GD-70D Series. Please verify that the model number of the product y

2 Installation 2-2. Installation of detector GD-70D - 20 - <Install Dimension and Maintenance Space>

2 Installation 2-2. Installation of detector - 21 - GD-70D <Installation of Wall-mounted Unit> Attach the wall-mounted un

2 Installation 2-2. Installation of detector GD-70D - 22 - <Detaching and Attaching Main Unit> Attaching Main Unit At the position of 10

2 Installation 2-3. How to wire - 23 - GD-70D 2-3. How to wire NOTE To use the pyrolyzer unit (PLU-70), also refer to the individual operating ma

2 Installation 2-3. How to wire GD-70D - 24 - Connection conditions • Cable: 0.08 - 2.5mm2 • Bare wire length: 8 - 9 mm • Connecting tool: D

2 Installation 2-3. How to wire - 25 - GD-70D <How to Connect to Terminal Plate> When cables are connected to the connectors, use the dedica

2 Installation 2-3. How to wire GD-70D - 26 - Grounding Use the grounding terminal to connect the detector to your grounding circuit.

2 Installation 2-3. How to wire - 27 - GD-70D Wiring Example Connecting to the indicator (3-wire type - 4 - 20 mA specification) Connec

2 Installation 2-3. How to wire GD-70D - 28 - <How to tube> NOTE To use the pyrolyzer unit (PLU-70), also refer to the individual operat

2 Installation 2-4. Relocate - 29 - GD-70D 2-4. Relocate When the detector is relocated, select a new place in accordance with "Precautions f

- 3 - GD-70 <Contents> Preface ...

3 How to Operate 3-1. Preparation for start-up GD-70D - 30 - 3 How to Operate 3-1. Preparation for start-up Before connecting a power

3 How to Operate 3-2. How to start the detector - 31 - GD-70D <Start-up Procedures (approximately 25 seconds for system check of the detector an

3 How to Operate 3-3. How to exit GD-70D - 32 - 3-3. How to exit To turn off the detector, open the switch cover on the bottom of the main uni

3 How to Operate 3-5. Modes - 33 - GD-70D <Detection mode> Flow Rate Indicator Because the suction flow rate of the detector is auto

3 How to Operate 3-5. Modes GD-70D - 34 - Mode Item LCD Display Details Regular Maintenance Mode Switching 1-8 M MODE Switch to the regular

4 Detection Mode 4-1. Gas alarm activation - 35 - GD-70 4 Detection Mode 4-1. Gas alarm activation Gas alarm: Activated when the concen

4 Detection Mode 4-1. Gas alarm activation GD-70D - 36 - <Contact Activation> The contact is activated when the gas concentration reache

4 Detection Mode 4-2. Fault alarm activation - 37 - GD-70D <Response to Gas Alarm> In case of responding to a leaked gas When a gas alarm is

4 Detection Mode 4-3. External output operation GD-70D - 38 - 4-3. External output operation Specifications 4 - 20 mA Power-line communicati

4 Detection Mode 4-3. External output operation - 39 - GD-70D Example of Gas Concentration and External Output 4 - 20 mA Specification (Maintenance

Important Notices on Safety GD-70 - 4 - Important Notices on Safety <Definition of DANGER, WARNING, CAUTION, and NOTE> DANGER Indicates

4 Detection Mode 4-4. Other functions GD-70D - 40 - 4-4. Other functions <Suppression Function> Some types of sensor used with the dete

4 Detection Mode 4-4. Other functions - 41 - GD-70D <Zero Follower Function> Some types of sensor used with the detector might have sensitiv

4 Detection Mode 4-4. Other functions GD-70D - 42 - <Calibration History/Alarm Trend History/Event History Functions> The detec

5 Alarm Test Mode - 43 - GD-70 5 Alarm Test Mode This is used when dummy signals the same as the signals of the gas concentration are gene

6 User Mode GD-70 - 44 - 6 User Mode User Mode PW A1 A2 F LCD Detection Mode Press the MODE key for three seconds. ● ○ ○

6 User Mode - 45 - GD-70D 1-5.70D VER Show the program version of the main unit. ● ○ ○ ○1- 5 70D VER MAINTENANCE → SET01234 56ABMAINTENANCE ▲

6 User Mode GD-70D - 46 - <Zero Adjustment "1-1"> This is used to perform the zero adjustment. Before starting the zero adjus

6 User Mode - 47 - GD-70D <Setpoint Indicator "1-2"> This is used to check important setpoints. Setpoint Display PW A1 A2 F L

7 Regular Maintenance Mode GD-70 - 48 - 7 Regular Maintenance Mode Mode Item LCD Display Details Gas Introduction Display 2-0

7 Regular Maintenance Mode - 49 - GD-70D Mode Item LCD Display Details Environmental Setting 2 ⇒P55 2-10 SETTING2 Functions setting • Address

Important Notices on Safety - 5 - GD-70D <Precautions> CAUTION Do not use a transceiver (walkie-talkie) near the detector. Radio wave from a

7 Regular Maintenance Mode GD-70D - 50 - Regular Maintenance Mode PW A1 A2 F LCD User Mode In "1-8.M MODE", press the SET key. ●

7 Regular Maintenance Mode - 51 - GD-70D ▲↓ ↑▼ ● ○ ○ ○2- 5 DEF FLOWMAINTENANCE ⇔ SET 1000 DEF FLOWMAINTENANCE 2-5.DEF FLOW Set the flow r

7 Regular Maintenance Mode GD-70D - 52 - ▲↓ ↑▼ ● ○ ○ ○2-12 FAULT MAINTENANCE 2-12.FAULT This is used (by the manufacturer) to inves

7 Regular Maintenance Mode - 53 - GD-70D <Environmental Setting 1 "2-9"> In the environmental setting 1, specify the operation se

7 Regular Maintenance Mode GD-70D - 54 - <Alarm Value Setting "2-9" - "SET 1"> Alarm Value Setting PW A1 A2 F LCD

7 Regular Maintenance Mode - 55 - GD-70D <Environmental Setting 2 "2-10"> In the environmental setting 2, specify the settings of

7 Regular Maintenance Mode GD-70D - 56 - ▲↓ ↑▼ ● ○ ○ ○SET 5 TEST4-20 MAINTENANCE ⇔ SET ON TEST4-20 MAINTENANCE ▲↓↑▼ OFF TES

7 Regular Maintenance Mode - 57 - GD-70D ▲↓ ↑▼ ● ○ ○ ○SET 10 FLT PTRN MAINTENANCE SET 10. FLT PTRN This is a setting screen of the faul

7 Regular Maintenance Mode GD-70D - 58 - ▲↓ ↑▼ ● ○ ○ ○SET 15 MNT OUT MAINTENANCE ⇔ SET 2.5mA MNT OUT MAINTENANCE ▲↓↑▼ 4.0mA

7 Regular Maintenance Mode - 59 - GD-70D ● ○ ○ ○SET 19 PUMP CK MAINTENANCE ⇔ SET ON PUMP CK MAINTENANCE ▲↓↑▼ OFF PUMP CK MAINTENANCE S

1 Overview 1-1. Product components GD-70 - 6 - 1 Overview 1-1. Product components <Gas Detector (GD-70D Series)> <Standard

7 Regular Maintenance Mode GD-70D - 60 - <Date/Time Setting "2-10" - "SET 1"> Date/Time Setting PW A1 A2 F LCD S

7 Regular Maintenance Mode - 61 - GD-70D <Energized/De-Energized Contact Setting "2-10" - "SET 6"> Energized/De-Energiz

8 Maintenance 8-1. Maintenance intervals and items GD-70 - 62 - 8 Maintenance This is a critical instrument for disaster-proof and safet

8 Maintenance 8-1. Maintenance intervals and items - 63 - GD-70D <About Maintenance Services> • We provide services on regular maintenance

8 Maintenance 8-2. Gas calibration method GD-70D - 64 - 8-2. Gas calibration method Perform a gas calibration in each mode (zero adjustment mo

8 Maintenance 8-2. Gas calibration method - 65 - GD-70D Zero Adjustment PW A1 A2 F LCD 2-1.ZERO Press the SET key. ● ○ ○ ○2- 1 ZERO MAINTENANCE

8 Maintenance 8-2. Gas calibration method GD-70D - 66 - <Span Adjustment "2-2"> This is used to perform the span adjustment. F

8 Maintenance 8-3. Other adjustments/Cleaning method - 67 - GD-70D 8-3. Other adjustments/Cleaning method <Flow Rate Manual Adjustment "2-

8 Maintenance 8-4. How to replace parts GD-70D - 68 - <Cleaning of Detector> Clean the detector if it becomes extremely dirty. The detec

8 Maintenance 8-4. How to replace parts - 69 - GD-70D <Replacement of Regular Replacement Parts> List of recommended regular replacement par

1 Overview 1-3. Product specifications - 7 - GD-70D 1-3. Product specifications <Common Specifications> Concentration Display Character LCD

8 Maintenance 8-5. Procedures to store the detector or leave it for a long time GD-70D - 70 - 8-5. Procedures to store the detector or leave it

9 Troubleshooting - 71 - GD-70 9 Troubleshooting The troubleshooting does not explain the causes of all the malfunctions which occur on th

9 Troubleshooting GD-70D - 72 - Symptom/Display FAULT Causes Actions Zero drift caused by environmental changes or aging degradation is out

9 Troubleshooting - 73 - GD-70D Symptom/Display FAULT Causes Actions The rated voltage is not supplied to the detector. Check the power supply, an

Definition of Terms GD-70 - 74 - Definition of Terms External Dust Filter When the detector is used in a dusty environment, it is recommended t

Detection principle - 75 - GD-70 Detection principle <Electrochemical Type> The electric potential between the working electrode and refe

Detection principle GD-70D - 76 - <Pyrolysis-Particle Type> When the gas to be detected is heated to several hundred degrees, particula

Detection principle - 77 - GD-70D The detector has the pyrolysis-particle type sensor, which is a radioisotope-equipped device. It is examined in

Detection principle GD-70D - 78 - Safety of the radioisotope 241Am (37 KBq) used in the pyrolysis-particle type sensor The pyrolysis-particle

Detection principle - 79 - GD-70D <Semiconductor Type> Metal dioxide can measure gas concentration based on changes in the electric conduct

1 Overview 1-3. Product specifications GD-70D - 8 - <Specifications for Each Principle> ESU ESU+PLU *1 SSU+PLU *1 SGU OSU *2 Detection

Detection principle GD-70D - 80 - <Galvanic Cell Type> By immersing precious metal and lead in electrolyte and connecting them with a l

- 81 - GD-70 Warranty Policy 1. We shall provide free repair services for one year after your purchase of the product in case of malfunctions,

1 Overview 1-4. Names and functions for each part - 9 - GD-70D 1-4. Names and functions for each part <Appearance>