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NEX-6301 April 10, 2024 NX6300 Single Fuel Integrated Burner Control Commissioning Manual...
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Commissioning Manual Firmware issue 1.4 The NX6300 is the newest member of the versatile 6000 series family of combustion efficiency burner controls that can be configured to control a variety of burner applications. Many of the features of this controller are carried over from the established Fireye NX6100 controller.
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Passive CANBus Hub with Screw terminals - Portrait profile. DISPLAY MODULES FOR NX6300 NX6220 12 key CANbus Organic LED (OLED) display for NX6300 with upload/download of NX6300 data and three programmable relays. USB port for updates and future functions TBD.
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Section 1: Introduction Replacement O2 probe for NX224457. Does not include mounting flange, NX6083-3 ambient air sensor, or transformer. NX6300 CANbus Inlet (ambient) Air Temperature Sensor -29C to 60C NXIATS (-20F to 140F) NON-SELF TEST PRESSURE SENSORS FOR NX6300 Steam Pressure Sensor: 0 - 15 PSI, 0 - 1 bar, 4-20mA output, 1/2" NPT, non- PXMS-15K self-check.
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Failure to observe a CAUTION may cause minor injury or damage to equipment. Health and Safety when using the NX6300 System It is the responsibility of the owner or user to make sure that the equipment described herein is installed, operated and commissioned in compliance with the requirements of all national and local legislation that may prevail.
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NOTE: The manufacturer of this equipment has a policy of continual product improvement and reserves the right to change the specification of the equipment and the contents of this manual without notice. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4...
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Scope of this Manual In this manual, we try to cover all the issues that you are likely to encounter in commissioning the NX6300 Burner Controller. This includes installation, setup and fault finding. It does not cover Operator instructions. This manual is split into sections to aid navigation. The section titles are given in the banner line at the top of each page.
In the event of a fault, please contact Fireye Inc. Disclaimer The purpose of this manual is to provide instructions for commissioning the NX6300 single fuel Integrated Burner Control. Nothing contained in this manual constitutes a warranty of any kind in respect of the equipment or of the results to be achieved by its use.
Section 1: Introduction NX6300 introduction System Outline The NX6300 equipment described in this manual comprises a fully integrated burner control system for industrial burners. The system features are as follows: • Full Burner Management functions, including flame and air pressure monitoring, and fuel valve shut-off control to EN298.
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Do not use a sharp object such as a biro, pencil, or metal stylus to operate the Touch screen – you may damage the screen or cause undue wear. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4...
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Because you can only enter Commission mode if the burner is OFF, you cannot monitor certain safety functions such as the Fuel Air ratio positions. For more details, see “How to go into Commission mode (Red)” in section 3, Commissioning. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4 1-10...
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Indicates the current profile number, followed by the fuel type. Unit 1 Indicates the boiler unit address number that is used by the digital communications system and for data back-up purposes. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4 1-12...
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Section 1: Introduction 2.2.4 Touch screen Lockout mode If the NX6300 controller is forced to a Lockout, then the screen will look like this… The Status bar will show *** Lockout *** A fault description box will pop up to show the...
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Control panel. You can change the Set-point, PID and Limit values by tapping the value and adjusting it using the up/down arrow buttons. Tap the Menu or Home button to exit this screen. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4 1-15...
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Post Purge Time t9 is started. When t9 has elapsed, the burner motor is turned OFF and the controller returns to state 1 to wait for another startup command. 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4 1-20...
[REM] is shown on the HMI status line: When the controller is set to run under Setpoint control the measured process value is determined from a 4-20mA sensor or Fireye ‘fail-safe’ sensor. The Setpoint loop applied to the input is determined from the following: •...
– the controller does not wait for drives to position before starting the post-purge time. ——— End of Section 1 —— 1 NX6300 Controller Fireye - Introduction V1pt4 Firmware issue 1.4 1–28...
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Section 2 page: 1. HOW TO INSTALL AND WIRE THE SYSTEM Mounting details for the NX6300 Control Module ............3 Mounting details for the 12 Key Display option ............5 Mounting details for the 7” Touchscreen display option ..........6 Mounting arrangements for NX6094 CANBus flame detector.
• Wiring must comply with all applicable codes, ordinances, and regulations. • Loads connected to the NX6300 series must not exceed those listed in the specifications as given in this manual. • All external components connected to the control must be approved for the specific purpose for which they are used.
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Section 2: Installation The NX6300 must be installed in a clean environment that meets the conditions defined in UL 60730-1, and where the ambient temperature is within the range 0 to 60 ºC (32 to 140 ºF). Refer to section 6, “Specifications”...
The display unit MUST be earthed to maintain electrical safety and ensure reliable operation. An earth terminal is provided on the back cover of the display unit. Connect the screen of the CANbus cable to this earth connection point. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–5...
HMI is installed in place. The clamps are put into place like this. Then the hexagon cap head clamp screws (3mm AF) are tightened evenly. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–6...
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The ambient operating temperature range is 0 to 60 ºC (32 to 140 ºF). The sensor MUST be earthed to maintain electrical safety and ensure reliable operation. The electrical connection is by way of a 12mm plug and socket arrangement. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–7...
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The ambient operating temperature range is 0 to 70 °C (32 to 158 ºF). The sensor MUST be earthed to maintain electrical safety and ensure reliable operation. The electrical connection is by way of a 12mm plug and socket arrangement. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–8...
Electrical connection is by way of a 12mm plug and socket on the square section of the body. The ambient operating temperature range for this device is -20 to 60 ºC (32 to 140 ºF). 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–9...
Electrical connection is by way of a 12mm plug and socket on the square section of the body. The ambient operating temperature range for this device is -20 to 60 ºC (-4 to 140 ºF). 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–10...
The NXCBH may be mounted in any attitude; clearances of a least 30mm (1.5 in.) should be left around the unit to allow sufficient space for wiring and to ensure reliable operation. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–11...
The Oxygen probe interface MUST be connected to earth to maintain electrical safety and ensure reliable operation. The Earth connection point is symbolized on the mounting ‘ears’ of the enclosure. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–12...
Section 2: Installation NX6300 Line Supply Fuse CAUTION • The NX6300 is configured for either 115VAC. or 230VAC operation at the time of manufacture. Ensure that you have the correctly rated device for your application BEFORE you apply power to the burner.
HAZARDOUS VOLTAGES MUST BE ISOLATED BEFORE SERVICE WORK IS CARRIED OUT. The NX6300 controller MUST be mounted within a ‘burner cabinet’ or similar panel. The metal body of all other component parts MUST be connected to earth ensure safe and reliable operation; use 1.5mm (AWG 16) green or green and yellow earth wire.
“direct on-line” un-interruptible power supply (UPS) to make sure a clean continuous mains power supply to the NX6300. No rating for the UPS is given here, as this will need to be assessed and calculated to include the power requirement of the safety valves connected to and routed through the controller.
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2.1.4 ELV signal cable Screen Connection CAUTION THE RULES FOR ELV SIGNAL CABLES CONNECTED TO NX6300 ARE DIFFERENT TO THOSE APPLIED TO THE PPC6000 and NX6100 CONTROLLERS. Read and use the information in this section carefully because the rules apply in a variety of configurations.
NOTE: If a control circuit fuse greater than 4 A is required, then the feeds to TB1-1 and TB3-1 must be individually fused, to protect the output relay contacts from ‘welding’. More details are given in the next two pages. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–22...
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Alternatively, if the total current output from all TB3 terminals exceeds 3 A, then you must include a separate 3 A fuse on each TB3 relay output, to protect the relay contacts from ‘welding’. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–23...
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• Any limit device connected to the NX6300 controller must be approved for the specific purpose for which it is being used. • If a limit device connected to this input removes power to the input, then the NX6300 will shut down, NOT Lock out.
TB5-11 and TB5-12. Under no circumstances must these inputs be connected to Line potential. Connection of any voltage above 24 Vac to these terminals will damage or destroy the controller and peripherals. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–26...
See Cable Voltage Rating rule in paragraph 2.4 on page 26. Never connect the Air Pressure switch input or output to Line potential. Connection of any voltage above 24 Vac to these terminals will damage the controller. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–27...
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In cases where the cable length exceeds 10m (33’), these terminals MUST be connected using multi- strand overall ‘braid’ screened, PVC insulated, 2-core wire and the rules defined in 2.1.4 apply. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–29...
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Connect the cable ‘braid’ screen to earth at an Earthed DIN terminal in the panel. Ensure that the screen covers the signal wires until 30mm from the TB4 terminals. The rules for ELV circuits, defined in 2.1.4, apply. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–31...
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The NX6300 can be configured for use with the NXUV24UL flame detector from BST Solutions (KLC20/24) - https://flamonitec-bst.com . The NXUV24UL device is suitable for intermittent operation of the burner regardless of the line supply voltage. Connection of the device to the NX6300 is shown below. NXUV24CUL NXUV24CE...
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2.5.10 Fan or Pump speed control loop The NX6300 controller includes a speed control algorithm for combustion air fan, or fuel pump, speed control. In either case the speed control is a closed loop type. There are two mutually exclusive speed control systems, and the system type is determined by the controller order code.
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Section 2: Installation Proximity Detection Devices: The NX6300 is designed to operate with a detector that meets a minimum requirement specification is as follows: • 24 V d.c. supply • 3- wire • PNP, open collector output. The following proximity detection devices have been tested and are recommended for use with the NX6300 when using encoder discs of the types shown above: Omron - E2E-X5MB1 L12.
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• Incorrect connection may damage or destroy the devices connected to the CANBus. The electrical connection between the NX6300 series controller and NXO2TRIM must meet the CANBus 4-core screen cable specification. The rules for ELV circuits, defined in 2.1.4, apply.
• Check all metal ‘bodied’ parts of the system are correctly connected to earth. • Check that all cables where required are of the correct ‘braided screen’ specification and terminated as defined in this manual. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–43...
You can reverse this by setting Option parameters 5.0 to 5.3 to a value of 1. DO THIS BEFORE ALIGNING AND SETTING THE ZERO POSTION FOR THE VALVE OR DAMPER SERVO. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–46...
3.5.1 Servo requirements Only servos supplied by Fireye (NXCxx) may be used with this equipment; various servos are available to suit different applications. The information below is intended as a general guide only. When installing or adjusting the servos fitted to the appliance, make sure you refer to the correct instruction manual.
1° and re-adjust the micro-switch if necessary. This position will allow for some tolerance in micro- switch operation. 6. Hold the UP key and tighten up the high limit micro-switch until the motor will no longer move up. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–48...
If the jumper is left in the programming position (Pins 1-2) when the controller exits to run mode, an ERR3 will be shown for the drive position and the controller will move to Lockout. In this case you may need to repeat the Closed point setting process. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–50...
Access to the battery is by removal of the top cover by prying it off like this... With the cover removed the battery can be removed out of the holder with a non-conducting tool or a fingernail like this…. 2 NX6300 Controller Fireye - Installation V1pt4 Firmware version 1.4 2–51...
• After entering and/or adjusting any profile points for any profile, it is the responsibility of the person commissioning the burner system to verify that the resulting fuel air ratio is safe for the appliance being controlled. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–2...
8. Set option 15.x parameters to configure the modulation input response, and then options 21.x to configure PID loop 1. 9. If the electrical configuration requires interlocks to digital inputs on the NX6300, then set options 16.x, 18.x and 19.x to configure the response of the input and the display message.
It is sometimes called a "Profile Curve Set". You can have two separate Profiles stored in the NX6300 system. For example, you might have one Profile for gas with FGR and one without FGR; or you may set up a full-power profile for 10MW (34 MBTU) output, and a reduced-power profile for 6MW (24 MBTU) output.
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Oxygen level that the oxygen trim function will try to attain if configured. There are two profiles (or tables) of set points available in the NX6300 controller. The profiles may be represented using the table below:...
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2: Then you can test and fine-tune the profile in Adjust Ratio mode with the burner ON, and you can then go to any set point in the sequence as required. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–6...
ENTER key to store the new value. • Repeat the process to select another Option parameter and set or adjust the values as necessary. When you have finished, exit from Option Set mode. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–8...
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It will be necessary to remove all faults before moving further than step 2. • Note: If power is removed from the controller, the set points entered in the current commissioning session will be lost. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–15...
‘A n’ adjustment mode. 6. Repeat steps 2-5 as required. Each time step 5 is completed, the new positions will be stored permanently. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–18...
Note: The most common cause of a failed restore is when the unit addresses for the backup and the controller do not match. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–20...
Actuator replacement procedure In the event of an actuator fault, it may be a requirement to replace the actuator. The manufacturers of the NX6300 recommend that all points on the combustion curve(s) are verified to ensure safe, hazard free combustion.
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C64 to indicate that the process is complete. At this point it is highly recommended to use manual modulation mode to ensure that the burner modulates to high fire without combustion problems. 3 NX6300 Controller - Commissioning V1pt4 Firmware issue 1.4 3–22...
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Setting up the VFD for use with the NX6300 ..............3 Encoder Wheel design....................5 PWM Fan speed control....................5 Setting up the NX6300 series for use with an VFD Drive..........6 2. THE OXYGEN TRIM OPTION Introduction ........................7 Oxygen Probe description .....................7 Installing the Oxygen Probe ..................9...
1.2 How does the speed controller work? During the start-up of the burner and before the boiler can be purged, the NX6300 controller drives all metering valve actuators to their minimum positions and sets the speed output to zero. The controller then monitors the feedback signal from the VFD drive or pulse feedback unit and compares it to the values stored in memory at commission time.
1.3 System Configuration The NX6300 series controllers can control one VFD drive unit to regulate the combustion air fan speed. The controller outputs a 0-10V signal as a speed reference to the VFD which it uses to set the motor supply frequency (speed).
1.6 PWM Fan speed control The PWM type blowers operate in a very similar way to the conventional VFD system. The speed output from the NX6300 is a series of 10V pulses of varying length (depending upon the target speed).
Section 4: VSD, Oxygen and CO Trim options. 1.7 Setting up the NX6300 series for use with an VFD Drive In order to use an VFD drive unit with the NX6300 series, the following steps must be taken: 1. Enter Commission mode.
The NXO2TRIM interface controls the oxygen probe and processes the signals from the probe into CAN messages, which are then transmitted to the NX6300. The interface also manages the condition of the NX6083 oxygen probe to optimize the operation life. Part of the management function is to set the probe Off into a ‘sleep’...
Mounting the probe with the flange horizontal (2) is acceptable. Inverted probe mounting is not acceptable. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–9...
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100 °C. (212°F) The maximum flue gas temperature rating is 540ºC (1,004 °F). 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–10...
The NXO2TRIM Oxygen Probe Interface unit is designed to interface directly to the NX6083 oxygen probe, which allows the NX6300 series controller to monitor the flue gas oxygen and temperature levels. The Oxygen Trim system relies on the oxygen measurement sent from the NXO2TRIM to the NX6300.
• Refit the sample tube, ensuring that the filter locates into the probe body. Tighten the retaining washers and screws evenly, to seal the filter assembly to the flange. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–13...
(curve set) change or on a system power down. Trim is not applied if the controller is in Commission mode. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–14...
• The flow for each profile position must be entered to ensure correct operation. The flow can either be measured for each profile position or calculated as a percentage of the flow at High Fire. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–15...
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11. If you need to adjust another set point in the firing range, then press the Axx key and then repeat the procedure above from step 3. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–16...
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Calculating and entering the Flow Values manually If the flow values are to be calculated manually, then complete the procedure below, filling out the table in section 0 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–17...
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High Fire set point as a value of 99.9(%). ● Typically, the transport delay will be 15 to 40s depending upon the size of the boiler. 4 NX6300 Controller Fireye - VSD, O2-CO Trim V1pt4 Commissioning Manual version 1.4 4–23...
The CO Trim option 3.1 Introduction The NX6300 system can be configured to modify the Oxygen trim algorithm based upon a Carbon Monoxide measurement made in the flue gases. For CO trim to be active the oxygen trim system must be commissioned and set ON.
1.1 The Fault Display The NX6300 series controllers carry out a number of internal and external checks during operation. If a fault is found, a fault number (displayed with a text description) is used to identify the type of problem.
Where applicable, the subsets are shown in this manual in 1.5, “List of Fault Code Numbers”. You can view the fault subsets on the system by looking at the Engineer's Key Data. For details, see section 1.6. 5 NX6300 Controller Fireye - Fault Finding V1pt4 Firmware issue 1.4 5–3...
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2 = Flue temperatures do not match 3 = Both flue temperature and oxygen levels do not match 255 = Second oxygen probe is faulty / not ready. See EK 76. 5 NX6300 Controller Fireye - Fault Finding V1pt4 Firmware issue 1.4 5–9...
Press the F1 EXIT button to go back to the normal run display. Timeout: The display system will automatically revert to the normal run display if a key has not been pressed for one minute. 5 NX6300 Controller Fireye - Fault Finding V1pt4 Firmware issue 1.4 5–13...
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To verify that this has not been replaced by an application-specific function, check with the equipment supplier and / or check the option parameter. 5 NX6300 Controller Fireye - Fault Finding V1pt4 Firmware issue 1.4 5–21...
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In extreme cases, you may need to increase the inverter error tolerance to prevent non-volatile lockouts caused by positioning faults (set option 9.1 = 1). This must only be changed if an inverter error of 55 will not cause unsafe combustion. 5 NX6300 Controller Fireye - Fault Finding V1pt4 Firmware issue 1.4 5–28...
Section 6: Specification and Connections NX6300 Terminal Connections These are the wiring terminal connections for the NX6300 controller. Line Supply fuse Each terminal set has a removable block to make wiring a little easier. The terminal blocks must be pushed fully home to ensure reliable operation.
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The value entered will be 0 or 1, corresponding to 3 or 30 seconds after the detection of a flame (when a flame should not be present) for a ‘Lockout’ to occur (all fuel valves closed Fireye). Number entered in parameter 08.2...
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Note: The manufacturer of the NX6300 recommend a maximum time of 60 s. However, this parameter can be set to values higher than 60 (up to 100), but this should only be considered as a last resort.
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For option 15.0 values of zero or two and where FGR Hold-off by temperature measurement is required (set by Opt. 44.4), then the PT1000 input terminals TB4-9 and TB4-10 are allocated to this measurement. In this case the NX6300 will look to TB4-8 to determine the modulation rate from a 4- 20mA signal.
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Option 30.6 - Oxygen probe calibration enable (0 – 2) This option parameter is only available if option 30.0 is non-zero. This option parameter must be used when calibrating the FIREYE oxygen probe. There are three possible values: Option parameter Meaning 30.6 value...
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Option 42.2 – CO trim gain (0 – 999) CO trim gain sets the rate at which the CO trim acts – modifies the O2 Set point. FIREYE recommends setting this parameter to a value of 10% initially, and then adjusting to suit the application response.
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A general term to cover Commission Ratio and Option Set modes - with a red touch screen background. ComFire2 FIREYE ComFire2 is a software tool from FIREYE, used for viewing and handling the FIREYE6000 controller settings by means of a PC or laptop, via a USB interface cable.
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Fireye warranty, as stated in its General Terms & Conditions of Sale, pertains only to the Fireye products and not to any other equipment or to the combined system or its overall performance.
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