Riken Keiki RI-2000R Operating Manual
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Riken Keiki RI-2000R Operating Manual

Riken Keiki RI-2000R Operating Manual

Ndir type gas detector
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PT3E-0420
NDIR type gas detector
Model RI-2000R
Operating manual

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Summary of Contents for Riken Keiki RI-2000R

  • Page 1 PT3E-0420 NDIR type gas detector Model RI-2000R Operating manual...
  • Page 2 Precautions for use This instrument is a toxic gas alarm and detector. Model RI-2000R is a safety device that is not made for quantitating or qualitative analysis and is not a concentration analyser. Please read this manual carefully to become familiar to Model RI-2000R and use the instrument properly.

  • Page 3: Table Of Contents

    Table of contents 1 Outline of model RI-2000R Introduction Purpose of use Definitions of warnings 2 Important information to ensure safety Term of "Danger" Terms of "Warning" Terms of "Caution" 3 Functions Name and function of each part 3-1-1 Dimension...
  • Page 4 Operations during measuring mode 5-4-1 Display and lamps 5-4-2 Output signals 5-4-3 Automatic zero adjustment Maintenance and adjustment 5-5-1 Zero point adjustment 5-5-2 Alarm test 5-5-3 Confirming the alarm set point Shutting down the instrument 6 Alarms Alarm types Operations of alarms Gas alarms 6-3-1 Operations 6-3-2 Response to gas alarms...

  • Page 5: Outline Of Model Ri-2000R

    This manual describes how to handle model RI-2000R (may be described as “this instrument” in this manual) and its specifications. Very important terms are written in this manual so please read this carefully, even if you have experience in gas monitoring.

  • Page 6: Important Information To Ensure Safety

    ・Model RI-2000R is not explosion-proof structured. Never use this instrument to detect gas above the Lower Explosive Level, or in hazardous environment. Model RI-2000R may explode or cause fire if there is presence of flammable gas. 2-2 Terms of “Warning”...

  • Page 7: Terms Of "Caution

    ・Make sure to attach a dust filter on the gas inlet before using RI-2000R. If the filter isn’t attached properly and dust get’s inside, it will cause false operation and damage the instrument.

  • Page 8: Functions

    A switch to turn the instrument ON or OFF. A fuse to protect the power supply system. ⑧Fuse rating:AC125V 5A normal fuse ⑨Terminal block A terminal block to connect RI-2000R and external devices. Installation hole * Guide rail for M5 * Guide rail is option accessory.

  • Page 9: Display

    3-1-2 Display Displays gas concentration readings and ①Liquid crystal display (LCD) messages. A lamp that keeps on when operating normally ②Power indication lamp after the instrument is turned on. It flashes hen there is any trouble in the instrument. A lamp that will flash and indicate during the ③Alarm indication lamp 2nd gas alarm.

  • Page 10: Maintenance Space

    3-2 Maintenance space Please save space for maintenance people to work safely and correctly when installing RI-2000R. RI-2000R requires maintenance and space for personnel is needed. Please remember to make space for personnel at the planning phase and in construction.

  • Page 11: Block Diagram

    3-3 Block diagram 3-3-1 Electric system 3-3-2 Piping system...

  • Page 12: Start Up

    Please follow all warnings and cautions, stated or implied, in this manual. Read this operation manual carefully even if you have handled RI-2000R or not. This instrument will be damaged and will not operate properly if they are not followed.
  • Page 13 ・Please install this instrument where maintenance can be done. These places are NOT suitable installation locations: Inside big equipment and you have to shut down the apparatus for RI-2000R’s maintenance. A place where you have to dismount a part of any apparatus to reach RI-2000R. Where things (wiring, storage racks) interfere opening the case of RI-2000R.

  • Page 14: Cautions In Designing A System

    False operations of the alarm contacts and output contacts may be expected when instantaneous blackouts occur and for a while the system is unstable after RI-2000R is started. Please use a backup power supply or take proper measures on the receiving end.
  • Page 15 4. Alarm contacts The alarm contacts of this instrument are intended for transferring signals to alarm buzzers and alarm beacons. Please do not use RI-2000R for controlling systems (example: to control isolation valves). CAUTION ・The de-energized break contact (b contact) may be instantaneously opened when an...
  • Page 16 There may be negative effect to RI-2000R when the loading is controlled because of loading characteristics. Please take the measures below to stabilise operation and to protect the contacts in such case. Please attach a surge absorber (a CR circuit, a spark killer or a diode if it is a DC relay) within the rating of on the relay coil with a under voltage relay directly.

  • Page 17: Earthing

    If not, it may cause damage or electrical shocks. ・ Make sure to have RI-2000R earthed and never let earthing wire to get close to the gas hose. ・Please earth within 100Ω earth resistance.

  • Page 18: Suitable Cables

    4-6 Suitable cables CAUTION ・Use junction box if you are using a wire that cannot go through the cable port of RI-2000R. 4-6-1 Power cable Please use relevant cables to CVVS 1.25 to 2.0 mm 4-6-2 4-20mA signal/ contact signal line Please use signal lines relevant to CVVS 1.25 to 2.0mm...

  • Page 19: Wiring On The Terminal Block

    (GAS IN and GAS OUT) because the tube may tare loose from the instrument and leak hazardous gas. Please use RI-2000R in normal pressure. ・Please connect an exhaust tube on the gas outlet that is on the bottom side of the instrument, and exhaust the sampled gas in a place that is known to be safe.
  • Page 20 (2)About the zero gas inlet The zero gas inlets connector size is a PT1/4 female thread. A propylene male connector is a standard accessory. The piping that matches is a φ6(0D)-φ4(1D) size Teflon tube. Please choose a sampling point where fresh dry air can be drawn in. CAUTION ・Please make sure put on the inner and sleeve when installing, pay attention to avoid gas leakage...

  • Page 21: Operation Procedure

    TEST/▼for 3 sec. Alarm test mode press and hold down ALARM/SET for 3 sec. Check alarm point ＊ NOTE Please let RI-2000R to operate at least 4 hours warm up after it hasn’t been used for a long time.

  • Page 22: Starting

    If the ball is not above the red line, please adjust the flow rate with the flow rate adjuster. 3. The instrument will start detecting gas after it finishes warming up 60 minutes. RI-2000R will go through these operations while warming up and preparing for detection. The indications on the display will be as below. RI-2000R it will display the target gas and the measuring range.

  • Page 23: Adjusting The Flow Rate

    Please confirm the flow rate by the flow rate monitor that is on the front too. Keep the ball in sight and above the red line. The flow rate can be adjusted by RI-2000R itself, above 1.0 litre within the temperature range of it. If you have to draw gas from a distant place, please contact us.

  • Page 24: Operations During Measuring Mode

    Short name of the LED PW: POWER AL1: WARNING AL2: ALARM MNT: MAINTENANCE ＊ NOTE The symbols and locations of the LED and LCD are different from the real RI-2000R. These are some examples of the operating condition. ZERO ● ○ ○...
  • Page 25 Over scale ● ○ ○ ○ The display will indicate “OVER” if the concentration exceeds full scale. N20 : OVER ppm Gas alarm condition Gas alarms will activate if the gas concentration exceeds the 1st or 2nd alarm set point. The gas concentration will be displayed and the LED indicators will flash.

  • Page 26: Output Signals

    5-4-2 Output signals 1. Signal transmission system: 4-20mA (non-insulated, discharge energy) 2. Recommended transmission cable: equivalent of CVVS 3. Transmission distance: shorter than 1km Connected load resistance: less than 300Ω 5. Level of signals in each condition 1. Detection mode: 4 to 22 mA (depends on gas concentration) 2.

  • Page 27: Automatic Zero Adjustment

    4. After adjusting the zero point, the solenoid will switch the sample line to the sample gas inlet. 5. RI-2000R will go back to detection mode and monitor gas concentration after 3 minutes have passed. (End of zero adjustment) 6. Periodically operate zero adjustments.

  • Page 28: Maintenance And Adjustment

    Please adjust the zero point periodically or in each case, by zero point adjusting mode(zero calibration mode). If the instrument was turned off for a long time, please adjust the zero point after running RI-2000R for 4 or 5 hours. ＊ NOTE In adjusting zero, please wait until the reading stabilises after drawing in zero calibration gas (zero gas for short).

  • Page 29: Alarm Test

    The LCD will display “HOLD ZERO KEY”. To interrupt, release your finger. 2. RI-2000R will go into alarm test mode and “CONTACT: NO-ACT” will be displayed. Press ▲or ▼ to choose the contact operation. NO-ACT: the contact will not act ACT: the contact will act 3.

  • Page 30: Confirming The Alarm Set Point

    4. Press ▲ and make the gas concentration on the LCD rise. The 1st alarm will operate after the alarm retardation time when the numbers exceed the 1st alarm set point. “WARNING” will flash on the LED after the alarm retardation time, the alarm contact will activate if “ACT”...

  • Page 31: Shutting Down The Instrument

    ・If using an energized alarm contact (optional service), please confirm and take measures against external instruments linked with RI-2000R before turning it off. The alarm contact will activate when RI-2000R is turned off and will cause false operation of external instruments.

  • Page 32: Alarms

    6 Alarms 6-1 Alarm types RI-2000R has two types of alarms, a gas alarm and a trouble alarm. Gas alarm: The alarm will activate when the gas concentration exceeds the preset gas level (alarm set point) . Trouble alarm: An alarm to notice there is trouble (failure) in RI-2000R. The instrument will start from warm up phase when it recovers from trouble states.

  • Page 33: Gas Alarms

    6-3 Gas alarm 6-3-1 Operations RI-2000R will operate as the following when it detects gas concentration higher than the alarm set point. 1. Indications LED lamps WARNING lamp: will activate when the gas concentration exceeds the 1st alarm set point.

  • Page 34: Response To Gas Alarms

    Observe the gas concentration with a portable gas analyser. 5. Take measures after confirming there is no danger left. 6-3-3 False gas alarms RI-2000R may activate gas alarms in some cases that are not caused by gas. These are some examples. 1. Interference gases Please ask your nearest agent about interferences.

  • Page 35: Maintenance

    7 Maintenance RI-2000R is important equipment to prevent danger and assure your safety. Please have a routine maintenance check to maintain the performance and further enhance its credibility. 7-1 Frequency and items to be checked 7-1-1 Daily maintenance Self-performed maintenance 1.

  • Page 36: Adjustments

    1. Temperature: within 5 to 35 ℃ 2. Humidity: within 30 to 85 %RH 3. Environment: gas, vapour and solvent free CAUTION ・Gas calibration of RI-2000R is required when you will start to use RI-2000R again. ・Please contact your nearest agent and request service.

  • Page 37: Periodic Replacement Parts

    7-6 Periodic replacement parts Things listed below are parts that are recommended to be replaced periodically. Replacing frequency name Check in every amount (year) Pump（exclude diaphragm ） 1～3 6 months Pump diaphragm 6 months 1～2 1～3 Inner tubes 6 months 1 set 1～2 6 months...

  • Page 38: Abnormal Conditions

    8 Abnormal conditions 8-1 Fault signals RI-2000R will provide a trouble (fault) alarm and operate as following when it detects trouble by self-diagnostics. 1. Indications: POWER lamp will flash 2. Output signals 1. 4-20mA output: 0.5mA 2. Fault signal contact: fault signal will be put out...

  • Page 39: Response To Trouble Signals

     Please review your uninterruptible power supply system, line filters and isolated transformer. 1. The power lamp doesn’t turn on. (Cannot turn on RI-2000R) Is the power supply cable connected? →Connect the power cable.  Isn’t there a short in the fuse? →Check why the short occurred and replace it.
  • Page 40 6. I cannot zero calibrate (adjust the zero point). Is it just after turning on RI-2000R?  →RI-2000R needs at least four hours to warm up. Is it fresh air?  →Please use fresh clean air that does not contain any interferent gas or, use 100vol% nitrogen.

  • Page 41: Words Used In This Manual

    9 Words used in this manual flow monitor a monitor that roughly indicates the flow rate of air. This instruments flow rate is over 1.0 litre/minute. External output signal The external output of this instruments is as follows. ・Gas concentration signal output, status signal : current output ・Alarm contact output (1 ,Fault) dust filter...

  • Page 42: Detecting Principal

    10 Detecting principal The detection method of RI-2000R is gas filter correlation. It is a part of NDIR (absorption of infrared radiation) based detecting, but it has better selectivity and stability than normal NDIR methods. There is an inlet for gas to enter the sample cell (white cell) and an outlet to let the gas go out.

  • Page 43: Specifications

    11 Specifications 11-1 Standard specification Model ：RI-2000R ：Non-dispersive infrared absorption (NDIR) Detecting principal Target gas ：Nitrous Oxide(N Detection range ：0 to 200 ppm ：Within 30% of the alarm set point (on a like-for-like basis) Alarm accuracy ：Within 30 seconds Alarm delay time ：Automatic aspiration by a pump...
  • Page 44 Alarm output contacts ： No-voltage relay A contact (standard) or B contact (optional) contact capacity ：AC 125V 0.1mA to 0.3 A (load resistance) Recommended cables ： CVVS relevant cables 1.25 to 2.0 mm Warming up time ：4hours (initial clear : 1 hour) Zero suppression ：Within 6% of the full scale Auto zero function ：Will aspirate zero calibration gas in set interval Interval of operation ：every 7 days...

  • Page 45: Configuration

    11-2 Configuration Standard configuration  Main unit (RI-2000R)  Operating manual  Accessories 2 dust filters and 2 fuses...
  • Page 46 Manual Log Rev. Amendment Issue data First issue 2017/3/7...

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