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RKI Instruments EC-600 Operating Manual

Indoor carbon monoxide monitor
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Indoor Carbon Monoxide Monitor
EC-600
Operating Manual
Part Number: 71-0417
Revision: P1
Released: 3/22/17

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Summary of Contents for RKI Instruments EC-600

  • Page 1 Indoor Carbon Monoxide Monitor EC-600 Operating Manual Part Number: 71-0417 Revision: P1 Released: 3/22/17...

  • Page 2: Table Of Contents

    Contents 1. Outline of the Product ............................. 3 Preface ................................3 Purpose of use ..............................3 Definition of DANGER, WARNING, CAUTION and NOTE ................4 Method of confirmation for CE marking type ....................4 2. Important Notices on Safety ........................... 5 2-1.

  • Page 3: Outline Of The Product

    Outline of the Product Preface Thank you for choosing our indoor carbon monoxide monitor EC-600 (hereinafter referred to as the monitor). Please check that the model number of the product you purchased is included in the specifications on this manual.

  • Page 4: Definition Of Danger, Warning, Caution And Note

    Definition of DANGER, WARNING, CAUTION and NOTE Throughout this manual, the following indications are used to ensure safe and effective work. This message indicates that improper handling may cause serious DANGER damage on life, health or assets. This message indicates that improper handling may cause serious WARNING damage on health or assets.

  • Page 5: Important Notices On Safety

    Important Notices on Safety To maintain the performance of the monitor and use it safely, observe the following instructions with WARNING and CAUTION. WARNING • If an abnormality is found in the monitor, contact RKI immediately. Visit our Web site to find your nearest RKI office.

  • Page 6: Warning Cases

    2-2. Warning cases WARNING • Before turning on the monitor, always check that the voltage is compliant with the specifications. Operating on an unstable power supply may cause malfunctions. • When the gas adjustment is performed, never fail to perform the air (zero) calibration in fresh air. •...

  • Page 7: Product Components

    Sensor unit (remote type) NOTE • The EC-600’s standard configuration is with the sensor installed in the main unit. Specify when ordering if you want an extender cable with a remote sensor. • The sensor integrated type does not include the remote sensor.
  • Page 8 Standard accessories - Cross-recessed pan head - 3.2 m AC power cable (1 pc.) *Supplied only with AC machine screw (2 pcs.) specification - Cross-recessed round head - Operating manual (1 pc.) wood screw (2 pcs.) CAUTION • The main unit and sensor unit (remote type) are precision devices. Be careful not to drop the monitor when installing or uninstalling the main unit or sensor unit.

  • Page 9: Names And Functions For Each Part

    3-2. Names and functions for each part This section describes the names and functions of the individual parts and LCD display that make up the monitor. Main unit Name Major function Turns the power ON/OFF. Slide the switch up to power on and down Power switch to power off.
  • Page 10 Display Name Major function Operating state display Displays the operating status. Blinks at a normal state. 1st alarm display Lights up or flashes orange at a first alarm state. 2nd alarm display Lights up or flashes red at a second alarm state. Fault alarm display Lights up in red at a fault alarm state.
  • Page 11 Check that the power of the main unit is turned off. If the power is turned on, slide the power switch down to turn it off. Remove the battery case from the monitor. Unlock the tab of the battery case. Put new batteries (two AA alkaline dry batteries) in New battery...

  • Page 12: How To Install

    How to Install 4-1. Precautions for installation points When installing the monitor, never fail to observe the following precautions. Ignoring the precautions may damage the monitor, resulting in inaccurate gas detection. CAUTION • This is a precision device. Because the monitor may not provide the specified performance in some places (environments), check the environment in the installation site, and then take appropriate actions if necessary.

  • Page 13: Precautions For System Designing

    <Keep the monitor (and its cables) away from noise source devices.> When selecting installation points, avoid a place where high-frequency/high-voltage devices exist. <Do not install the monitor in a place where maintenance of the monitor cannot be performed or where handling the monitor involves dangers.> Regular maintenance of the monitor must be performed.
  • Page 14 - It may be recommended that the surge absorbing part should be attached to the contact for certain load conditions. It must be attached to an appropriate position by checking how the load is activated. EC-600 Alarm contact Power...

  • Page 15: Installation Of Main Unit

    4-3. Installation of main unit Install the main unit on the wall 50 to 180 cm up from the floor. If wall screws are available, remove the screw at the lower part of the main unit to open the cover and install the unit using the mounting holes on the back of the unit.
  • Page 16 If the monitor operating on dry batteries needs to be removed with the power on, use the mounting plate (option). When the mounting plate is used, install the plate before installing the main unit. Mounting hole (for M4 screw) <Installation of Remote Sensor> Tighten the screws through one upper mounting hole and one of the two lower mounting holes.
  • Page 17 <Maintenance Space> To use dry batteries, secure a maintenance space for battery replacement below the unit. If the mounting plate (option) is used, secure an installation space above the unit so that it can be installed by sliding. Secure as installation space Secure as battery replacement space Secure as battery replacement space...

  • Page 18: Precautions For Wiring

    4-4. Precautions for wiring If the monitor operates on AC or DC power or if an inductive load is used at the alarm contact, wiring work is required. The following cables are recommended for wiring the monitor with the power supply, signal cable and contact.
  • Page 19 How to connect to terminal plate When cables (wires) are connected to the terminal plate inside the main unit, use the dedicated screwdriver or a compatible flathead screwdriver. When connecting a stranded wire, be sure to press the push button and open the spring while connecting the wire.
  • Page 20 Figure of terminal plate The overview of the terminal plate inside the main unit is as follows: For external output signal (4 - 20 mA for line For contact (TN3) powered/0 - 1 V for battery powered) (TN2) 1 - 2: ALM1 (First) 1: (+) 3 - 4: ALM2 (Second) 2: (-)

  • Page 21: How To Use

    How to Use 5-1. Before using the monitor Follow the operating precautions. Ignoring the precautions may damage the monitor, resulting in inaccurate gas detection. CAUTION • After you received the monitor, start using the monitor within the specified operation start limit of its sensor.

  • Page 22: Basic Operating Procedures

    5-3. Basic operating procedures Normally, the detection mode is activated after the power is turned on. <Detection Mode> The monitor is restarted after recovering from fault. (long pressing) <Gas Alarm Status> <Maintenance Mode> <Maintenance Mode (regular maintenance mode)> <Fault Alarm Status> (long pressing) WARNING •...

  • Page 23: Power-On

    5-4. Power-on - Before turning on the power switch, check that the monitor is installed properly. - Slide the power switch up to power on and down to power off. - Turn on the power switch. - After the monitor completes the start-up, it enters the detection mode. Power switch <Start-up Procedures (approximately 25 seconds for system check of the monitor and alarm deactivation)>...

  • Page 24: Modes

    5-5. Modes Mode Item LCD display Details Detection － concentration Normal state mode Gas name Version display 1-0 VER Indicate the program version. Fresh air 1-1 AIR Perform zero adjustment. adjustment Show the typical settings. 1-20: First Alarm Setpoint (ALM1) 1-21: Second Alarm Setpoint (ALM2) 1-22: Alarm Delay Time (DELY) User Mode...

  • Page 25: User Mode

    5-6. User mode WARNING • After adjustment is completed, never fail to press the MODE button to return to the detection mode. (If the monitor remains in the user mode, it automatically returns to the detection mode in ten hours.) Detection mode Press the MODE button for three...
  • Page 26 <Zero Adjustment "1-1"> This is used to perform the zero adjustment. CAUTION • After power-on, never fail to perform the zero adjustment (perform in fresh air). 1-1. ZERO Press the SET button. Current Concentration Value Display Press the SET button to display the current ˄...
  • Page 27 <Setting Display "1-2"> This is used to check the setting of typical menus. 1-2. CONF Press the SET button. First Alarm Setpoint Display Press the SET button to display the first alarm setpoint. Second Alarm Setpoint Display Alarm Delay Time Display (seconds) Zero Suppression Value Display...

  • Page 28: Power-Off

    Zero Follower ON/OFF Display Not used. Air Pressure Correction ON/OFF Display Not used. Alarm Summary 5-7. Power-off Slide the power switch down to power off. After turning off the power switch of the monitor, turn off the power supply (100 VAC or 24 VDC) of the monitor.

  • Page 29: Alarm Activation And Functions

    Alarm Activation and Functions 6-1. Gas alarm activation A gas alarm is activated when detected gas concentration reaches the preset alarm setpoint. NOTE • The alarm setpoint (first alarm and second alarm) is factory-set. The setting values can be changed in the maintenance mode (P.36).
  • Page 30 Normal Alarm Recovered Gas concentration SP.L side (1st) SP.LL side (2nd) ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■ Buzzer "Alarm Pattern Example (Self-latching, L-LL)" Normal Alarm Recovered Gas concentration SP.H side (1nd) SP.HH side (2st) Reset ■...
  • Page 31 Reset Reset ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■ Buzzer Reset Reset ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■ Buzzer Reset Reset ■...
  • Page 32 Buzzer Stop Reset Reset ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■ Buzzer Reset Buzzer Stop ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■...
  • Page 33 Buzzer Stop Reset Reset Buzzer Stop ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■ 2nd alarm contact ■ Buzzer Buzzer Stop Buzzer Stop Reset ■ 1st alarm display ■ 2nd alarm display ■ 1st alarm contact ■...

  • Page 34: Fault Alarm Activation

    6-2. Fault alarm activation A fault alarm is triggered when the monitor detects abnormalities. When a fault alarm is triggered, “FAULT” is displayed and the LCD display lights up in red. (An error message is displayed on the LCD. Determine the causes and take appropriate actions.) After the monitor is successfully returned from the fault, it restarts with the process normally performed right after it is turned on (initial clear).

  • Page 35: Maintenance

    Maintenance The monitor is an important instrument for the purpose of safety. To maintain the performance of the monitor and improve the reliability of safety, perform a regular maintenance. 7-1. Maintenance intervals and items This is a safety unit. Never fail to perform daily and regular maintenance before use. ・...

  • Page 36: Maintenance (Regular Maintenance) Mode

    About maintenance services We provide services on regular maintenance including such as span adjustment, other adjustments and maintenance. Our qualified service engineers have expertise, knowledge, etc. on the dedicated tools used for services, along with other products. To maintain the safety operation of the monitor, please use our maintenance service. Typical maintenance services are listed as follows.
  • Page 37 Mode Item LCD display Details Maintenance Gas introduction 2-0 GAS TEST 2-00: Gas Test mode display 2-01: Alarm Test (Regular 2-02: Fault Alarm Test maintenance) 2-03: Display test 2-04: Not used (----) Zero adjustment 2-1 ZERO Perform the zero adjustment. Span adjustment 2-2 SPAN Perform the span adjustment.
  • Page 38 <Regular Maintenance Mode> User mode Press the SET button in "1-3. M MOD". Then press the SET button again for three (long pressing) seconds. 2-0. GAS TEST Perform a test with the gas. Similar to the detection condition,the reading changes and an alarm is displayed after gas is introduced, but the “ALM1”...
  • Page 39 2-3. SDEF Not used. 2-4. SET Specify various settings. 2-5. DISP Provide various detail displays. 2-6. F MODE Not used. 2-7. U MODE Return to the user mode.
  • Page 40 <Gas Introduction Display> 2-0. GAS TEST Perform a test with the gas. Similar to the detection mode, the reading changes and an alarm is displayed after the gas is introduced, but the contact is not activated. 2-00. GAS Perform the gas test. Use the ˄...
  • Page 41 2-03. LCD Perform the LCD display test. 2-04. Not used. To 2-00...

  • Page 42: Preparation For Zero And Span Adjustment

    2. Use the calibration tubing to connect the regulator to the calibration cup’s inlet. 3. Remove the charcoal filter holder from the EC-600 by twisting it counterclockwise until the tabs are horizontal and then pulling it away from the instrument.

  • Page 43: Zero Adjustment

    7-4. Zero adjustment Perform the preparation (P.42) before performing a zero adjustment. If a fresh air environment cannot be verified, a cylinder of zero air will have to be used. 2-1. ZERO Perform the zero adjustment. The current concentration is displayed.

  • Page 44: Span Adjustment

    7-5. Span adjustment Perform the preparation (P.42) before performing a span adjustment. 2-2. SPAN Perform the span adjustment. The current concentration is displayed. Turn the regulator’s knob counterclockwise to open the regulator. Allow calibration gas to flow for 2 minutes. Use the ˄...

  • Page 45: Environmental Settings

    7-6. Environmental Settings 2-4. SET Specify various settings. 2-40. Not used. 2-41. Not used. 2-42. AL-P Set the alarm setpoint Use the ˄ or ˅ button (first, second). to set the alarm setpoint and press the SET button to confirm...
  • Page 46 2-43. AL-D Set the alarm delay Use the ˄ or ˅ button time (seconds). to set the time (seconds) and press the SET button to confirm it. 2-44. AL-T Set the alarm pattern setting (Non latching (Auto-reset), Self-latching). nL: Non latching (Auto-reset) L: Self-latching Use the ˄...
  • Page 47 2-47. Not used. 2-48. MA20 Adjust the external output (4 mA, 20 mA). Then, use the ˄ or ˅ Connect an ammeter. button to select the value and press the SET button to confirm 2-48. MA20 Adjust the external output (4 mA, 20 mA). Then, use the ˄...
  • Page 48 2-4A. DATE Use the ˄ or ˅ button Set the date/time. to select each value in the order of year, month, day, hour and minute and press the SET button to confirm...
  • Page 49 2-4b. P-A Not used. 2-4C. ACAL Not used. 2-4d. BZZR Set the buzzer to ON/OFF.
  • Page 50 2-4E. AL-R Set the gas alarm state contact to ON/OFF. 2-4F. MA-O Set the external output signal to ON/OFF.
  • Page 51 2-4H. LCD Set the LCD backlight to ON/OFF. 2-4J Alarm Pattern Setting Change the alarm pattern to L-LL (both alarms decreasing), L-H (first alarm decreasing, second alarm increasing), or H-HH (both alarms increasing).

  • Page 52: Return To User Mode

    7-7. Return to user mode 2-7 UMOD The monitor returns to the user mode. 7-8. Component Replacement <Replacing the Batteries (for dry battery type)> Refer to "Installation of batteries (for dry battery type)"(P.10) for instructions to replace the batteries. <Replacing the Sensor (Integrated Sensor Type)> Remove the sensor cover of the sensor part.
  • Page 53 Remove the sensor cover. Remove the old sensor. Install the new sensor. Be sure the sensor pins are lined up with the board’s sockets. Put the sensor cover back on. CAUTION • When installing the sensor, be sure the pins are lined up with the sockets before pushing in the sensor.

  • Page 54: Replacing A Sensor Cable

    Type A cable has red/green/white/black wires and the Type B cable has white/yellow/white/blue wires. The pictures in this section show the Type A cable. Turn off or disconnect power to the EC-600. Remove the sensor cover of the old cable’s remote sensor housing.
  • Page 55 Push the PCB retaining tabs back, grasp the cable socket, and lift the sensor board out of the housing. Set the sensor board aside. Remove the top half of the main unit’s housing to access the wiring at the other end of the cable. Remove the old cable’s wiring leads from the sensor terminal strip.
  • Page 56 Route the new cable’s wires through the hole in the housing to the right of the sensor terminal strip and install a zip tie in the case and around the cable as shown in this picture but do not tighten it yet. Connect the cable’s wires to the sensor terminal strip.

  • Page 57: Adding A Sensor Cable

    Type A cable has red/green/white/black wires and the Type B cable has white/yellow/white/blue wires. The pictures in this section show the Type A cable. Turn off or disconnect power to the EC-600. Remove the top half of the main unit’s housing.
  • Page 58 Remove the cable plug from the cable socket on the sensor board. Press the tab on the plug to release it and pull it away from the socket. Unplug the wires from sensor terminal strip. For each terminal strip position: Push the push button straight downward...
  • Page 59 Push the PCB retaining tabs back, grasp the cable socket, and lift the sensor board out of the housing. Set the sensor board aside. Remove sensor cover cable’s remote sensor housing. Push the tabs on both sides of the sensor cover with your fingers to release the sensor cover latch.
  • Page 60 and then pulling it away from the instrument. Install the charcoal filter holder on the remote sensor housing by aligning the filter holder’s tabs and the remote sensor housing’s slots, pushing the filter holder into the slots, and then turning it clockwise.
  • Page 61 Connect the cable’s wires to the sensor terminal strip. See the table below for the wire colors. Type A wire colors are shown in the pictures below. Note that the Type B cable has two pairs of wires extending from the cable. Tighten the zip tie to secure the cable in place.

  • Page 62: Storage And Disposal

    Storage and Disposal 8-1. Procedures to store the monitor or leave it for a long time The monitor must be stored under the following environmental conditions. • In a dark place under the normal temperature and humidity away from direct sunlight •...

  • Page 63: Troubleshooting

    Troubleshooting The Troubleshooting does not explain the causes of all the malfunctions which occur on the monitor. This simply helps to find the causes of malfunctions which frequently occur. If the monitor shows a symptom which is not explained in this manual, or still has malfunctions even though remedial actions are taken, please contact RKI.
  • Page 64 Symptom/Display Causes Actions Disturbances by interference gases, such as Presence of interference solvents, cannot be eliminated completely. For information on actions, such as removal filter, please contact RKI. Turn off and restart the monitor. Disturbance by noise If a symptom like this is observed frequently, take appropriate measures to eliminate the noise.

  • Page 65: Product Specifications

    Product Specifications 10-1. List of specifications Detection principle Electrochemical type Gas to be detected Carbon monoxide Concentration display LCD digital display (Three-digit, seven-segment/green, orange and red backlight) Detection range 0 - 150 ppm Display resolution 1 ppm Detection method Diffusion type Alarm setpoint value 50 ppm (first)/100 ppm (second) [Standard setting] Alarm delay time...

  • Page 66: List Of Accessories

    10-2. List of accessories - 3.2 m AC power cable (1 pc.) *Supplied only with AC specification - Cross-recessed pan head machine screw (2 pcs.) - Cross-recessed round head wood screw (2 pcs.) - Operating manual (1 pc.)

  • Page 67: Parts List

    Spare Parts List Part Number Description 06-1248RK-03 Calibration tubing, 3 foot length 07-2034 Gasket for charcoal filter 21-1927 Mounting plate for instrument removal 21-1943 Charcoal filter holder 33-7101RK Charcoal filter 45-0443RK Bar terminal with red insulation, for 18 AWG 45-0444RK Bar terminal with black insulation, for 16 AWG 45-0445RK Bar terminal with blue insulation, for 14 AWG...

  • Page 68: Appendix

    Appendix 12-1. Detection principle of electrochemical type The electric potential between the working electrode and reference electrode is kept at a certain level by a potentiostat circuit. The gas to be detected is electrolyzed directly at the working electrode. Because the electric current generated there is proportional to the gas concentration, the gas concentration can be known by measuring the electric current flown between the working electrode and the opposite electrode.

  • Page 69: Definition Of Terms

    12-2. Definition of terms Gas concentration indicated in the unit of one-millionth of the volume Calibration Find relationship of the readings, display values or setpoints with the actual values by using the calibration gas, etc. Maintenance When maintenance is performed on the monitor, the alarm contact is disconnected, mode and a signal to indicate the maintenance mode status is sent out to the external output signal.

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