Riken Keiki FI-815A Operating Manual
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Riken Keiki FI-815A Operating Manual

Riken Keiki FI-815A Operating Manual

Optical interferometric gas monitor
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PT3E-0460
Optical Interferometric Gas Monitor
FI-815A
Operating Manual

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Summary of Contents for Riken Keiki FI-815A

  • Page 1 PT3E-0460 Optical Interferometric Gas Monitor FI-815A Operating Manual...
  • Page 2 Thank you for choosing our optical interferometric gas monitor FI-815A. This manual describes how to use FI-815A. Not only the first-time users but also the users who have already used the gas monitor must read and understand the operating manual before using this product.

  • Page 3: Table Of Contents

    <Contents> Product Functions ....................5 1-1. Outline drawing of the gas monitor ..............5 1-2. Accessories ......................6 1-3. Block diagram ...................... 7 1-4. Descriptions of the LCD display ................8 How to Install Gas Monitor ................... 9 2-1. Precautions on installation site ................9 2-2.
  • Page 4 <Outline of the Product> This product is designed to perform continuous measurement and monitoring of the concentration of solvent vapor generated from drying equipment such as photogravure printing machine. The optical interferometric system has been adopted as a principle to provide highly accurate, stable measurements. DANGER WARNING This product is not explosion-proof.

  • Page 5: Product Functions

    1 Product Functions 1-1. Outline drawing of the gas monitor Product Functions 1-1. Outline drawing of the gas monitor Handle Mounting hole 4-ø7 Flow adjustment valve Display Flow monitor Power switch Fuse Terminal plate - 5 -...

  • Page 6: Accessories

    ID card, may damage the stored data.  FI-815A operating manual ····· 1  Fuse (2A normal fusing type) · The supplied quantity depends on the number of units to be delivered.

  • Page 7: Block Diagram

    1 Product Functions 1-3. Block diagram 1-3. Block diagram Tubing diagram Pressure gauge Diffusion preventing buffer Needle Solenoid valve Flow meter valve Pump Pulsation preventing buffer - 7 -...

  • Page 8: Descriptions Of The Lcd Display

    1 Product Functions 1-4. Descriptions of the LCD display 1-4. Descriptions of the LCD display (13) (10) (11) (12) * Descriptions enclosed in the brackets [ ] indicate behaviors in the maintenance mode. A switch for entering the maintenance mode. (1) MAINTENANCE/ESC switch [It is used to stop processing and to do others.] This is a power lamp that continuously lights up while the gas monitor...

  • Page 9: How To Install Gas Monitor

    2 How to Install Gas Monitor 2-1. Precautions on installation site How to Install Gas Monitor 2-1. Precautions on installation site Do not install this product in any of the following locations. (1) Place exposed to water, oil or chemicals (2) Place with vibrations (3) Place where radio wave or noise is generated (4) Place where the gas monitor may drop or receive...

  • Page 10: Installation And Precautions

    2 How to Install Gas Monitor 2-2. Installation and precautions 2-2. Installation and precautions The structure of the gas monitor is a rack mounting type. To install it, a rack that matches the panel cutout dimensions shown in the figure below should be provided. One point Multi-point (N point) - 10 -...
  • Page 11 2 How to Install Gas Monitor 2-2. Installation and precautions <Installation dimensions of the fixed rail> (when it is used) Install two fixed rails (SPCC t2) in the rack. Main unit Both sides of 2-M4 CAUTION  Do not drop or give strong shock to the gas monitor during installation. Otherwise, the device may be damaged.

  • Page 12: How To Connect Wire

    3 How to Connect Wire 3-1. Descriptions of the terminal plate and how to connect the wire How to Connect Wire 3-1. Descriptions of the terminal plate and how to connect the wire IN 100 VAC 50/60 Hz (Unused) Grounding D type grounding (Unused) Zero adjustment switch for remote First alarm contact point (non-voltage contact)

  • Page 13: Precautions On Electrical Work

    3 How to Connect Wire 3-2. Precautions on electrical work 3-2. Precautions on electrical work The noise induced by an unstable power supply or cable may cause malfunctions, false alarms or failures. 1. Use a stable power supply for the system. (1) The gas monitor must be provided with the following power supply.

  • Page 14: Protective Grounding

    3 How to Connect Wire 3-3. Protective grounding CAUTION Be careful not to damage the internal electronic circuit when wiring. CAUTION The "b" contact (break contact) under de-energized state may be opened momentarily by a physical shock, such as external force. When the "b"...

  • Page 15: How To Tube

    GAS IN tube must be minimized. (4) When the sample gas is hot, cool it until the same level as the ambient temperature of FI-815A. (5) For gas sampling in high temperature and high humidity atmosphere or in the state near saturated vapor concentration, condensation in the sampling tube may disable measurement.
  • Page 16 (8) For safety, to provide a flame arrestor for line, install it into each line of the GAS IN and GAS OUT. CAUTION FI-815A requires appropriate tubing works (selection of materials and other works) depending on types of sample gas and installation conditions. For questions about tubing works, please contact RIKEN KEIKI.

  • Page 17: How To Operate

    5 How to Operate 5-1. How to start the gas monitor How to Operate 5-1. How to start the gas monitor WARNING  Check the wiring, tubing, and installation for errors.  Make sure that supply power is rated (100 VAC±10%). Turn on the power switch to start the gas monitor.

  • Page 18: Alarm Activation

    5-3. Alarm activation The alarm pattern of FI-815A is "H-HH alarm". The first alarm setpoint "AL1" and the second alarm setpoint "AL2" are used, and alarm activation is caused when the following condition is met. The X in the following table indicates the concentration of measuring gas.

  • Page 19: Caution For Sensor Deterioration

    5 How to Operate 5-5. Caution for sensor deterioration 5-5. Caution for sensor deterioration When sensor deterioration is detected by self diagnosis or during measurement, the BRIGHT or CONT lamp blinks as shown in the lower right figure to display caution for sensor deterioration. Although measurement can be performed with the caution displayed, the system is put into a troubled state when the deterioration state gets worse.

  • Page 20: Gas Alarm Pattern (H-Hh Alarm)

    5 How to Operate 5-7. Gas alarm pattern (H-HH alarm) 5-7. Gas alarm pattern (H-HH alarm) Gas concentration Second alarm setpoint First alarm setpoint First alarm lamp (AL1) Alarm contact 1 (ALM1) Second alarm lamp (AL2) Alarm contact 2 (ALM2) 5-8.

  • Page 21: How To Operate In Maintenance Mode

    6 How to Operate in Maintenance Mode 6-1. Overview of maintenance mode and each menu How to Operate in Maintenance Mode 6-1. Overview of maintenance mode and each menu Press the  mark of the MAINTENANCE switch on the display for over five seconds to enter the maintenance mode.

  • Page 22: Displaying Contrast Of The Interferometric Sensor

    6 How to Operate in Maintenance Mode 6-2. Displaying contrast of the interferometric sensor LCD display Menu detail Display pressure at sensor part Display temperature at sensor part 6-2. Displaying contrast of the interferometric sensor When the SET switch is pressed while the LCD displays 0.

  • Page 23: Adjusting 4-20 Ma External Output

    6 How to Operate in Maintenance Mode 6-4. Adjusting 4-20 mA external output 6-4. Adjusting 4-20 mA external output When the SET switch is pressed while the LCD displays , the display changes as shown in the right figure and a test signal (4 mA) of the minimum scale (0% LEL) is output.

  • Page 24: Setting Alarm Setpoint

    6-6. Setting alarm setpoint When the SET switch is pressed while the LCD displays , the alarm pattern of FI-815A used is displayed. When the / switch is pressed next, "first alarm setpoint" and "second alarm setpoint" are displayed. The AL1 lamp lights up while the first alarm setpoint is displayed. Likewise, the AL2 lamp lights up while the second alarm setpoint is displayed.

  • Page 25: Conducting Alarm Activation Test

    6 How to Operate in Maintenance Mode 6-7. Conducting alarm activation test 6-7. Conducting alarm activation test The alarm activation of the unit can be checked. CAUTION  Since the test involves alarm contact, provide a notification to the related sections and take appropriate actions to avoid affecting the control equipment with false alarms before starting the alarm (transmission) test.

  • Page 26: Setting Auto Ref Cal Cycle

    When the SET switch is pressed while the LCD displays , the specification number (manufacturer's reference number) of FI-815A used is displayed. This function is used by a service engineer for the purpose of checking and not especially important for the customer to use FI-815A normally.

  • Page 27: Maintenance

    We recommend you to conclude a maintenance contract with us for regular maintenance including span adjustment, adjustment, maintenance etc. to ensure stable operation and accuracy of the gas monitor. Please contact RIKEN KEIKI for more information on a maintenance contract. 7-1. Maintenance intervals and items...

  • Page 28: How To Replace The Fuse

    7 Maintenance 7-2. How to replace the fuse Half-yearly/yearly maintenance Maintenance area/item Detail and judgment After performing zero calibration, supply a gas with known concentration Span adjustment from GAS IN and check if the reading is correct. Adjust sensor sensitivity (span) as needed. When half-yearly/yearly maintenance is performed, daily and monthly maintenance items are checked as well.

  • Page 29: List Of Recommended Regular Replacement Parts

    7 Maintenance 7-4. List of recommended regular replacement parts 7-4. List of recommended regular replacement parts Maintenance Replacement Quantity Name intervals intervals (year) (pieces/unit) MC (ST) filter cartridge 1 year 1 to 2 (external GAS side) Cylindrical filter CF-8369 1 year 1 to 4 (external REF side) Pump...

  • Page 30: Troubleshooting

    8 Troubleshooting Troubleshooting The troubleshooting does not explain the causes of all the malfunctions which occur on the gas monitor. This simply helps to find the causes of malfunctions which most frequently occur. Symptoms Causes Actions The power cannot be turned Appropriate power is not Supply the rated AC power.

  • Page 31: How To Exit

    9 How to exit How to exit Organic solvent vapor such as toluene has a high adsorptive property. Power switch Do not turn off the power in the state with it remaining in the tubing. Make sure that the measurement value returns to zero, clean the tube sufficiently, and then turn off the power switch in the rear of the gas monitor.

  • Page 32: Definition Of Terms

    10 Definition of Terms Definition of Terms The terms used in this manual are defined as follows. Lower explosive The lowest concentration of a combustible gas in air capable of causing explosion limit when ignited. %LEL A percentage unit of the concentration of a combustible gas assuming the lower explosive limit (LEL) of the combustible gas as 100.

  • Page 33: Disposal Of Product

    11 Disposal of Product Disposal of Product When the gas monitor is disposed of, it must be treated properly as an industrial waste in accordance with the local regulations. - 33 -...

  • Page 34: Product Specifications

    12 Product Specifications 12-1. Standard specifications Product Specifications 12-1. Standard specifications Measuring principle Optical Interferometric Method Measuring gas Solvent vapor in atmosphere Concentration display LCD digital display Measuring range 0 - 100% LEL Display resolution 1% LEL Sampling method Sample-drawing Suction flow rate 1 L/min or more (Open flow rate) Setting flow rate for...

  • Page 35: Standard Accessories

    21 to 50 units Three Over 51 units Four  FI-815A operating manual ····· 1  Fuse (2A normal fusing type) · The supplied quantity depends on the number of units to be delivered. 1 to 10 units 11 to 20 units...

  • Page 36: Measuring Principle

    12 Product Specifications 12-3. Measuring principle 12-3. Measuring principle The refractive index of gases is determined by the types of composing gases and the mix ratio. When a mixed gas consists of two different gases and the types are known, the mix ratio (concentration) can be obtained by measuring the refractive index.

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