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K244XX
Programmable Muffle Furnace
Operation and Instruction Manual
REV A
Koehler Instrument Company, Inc.
1595 Sycamore Avenue • Bohemia, New York 11716-1796 • USA
Toll Free: 1-800-878-9070 (US only) • Tel: +1 631 589 3800 • Fax: +1 631 589 3815
http://www.koehlerinstrument.com • e-mail: info@koehlerinstrument.com
Petroleum Testing & Analysis Instrumentation • Custom Design & Manufacturing
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Summary of Contents for Koehler K244 Sereis
- Page 1 Programmable Muffle Furnace Operation and Instruction Manual REV A Koehler Instrument Company, Inc. 1595 Sycamore Avenue • Bohemia, New York 11716-1796 • USA Toll Free: 1-800-878-9070 (US only) • Tel: +1 631 589 3800 • Fax: +1 631 589 3815 http://www.koehlerinstrument.com •...
- Page 3 DIN 51575 This unit is tested before it leaves the factory, to ensure total functionality and compliance to the above specifications and ASTM standards. Test and inspection records are on file for verification. Jesse Kelly Application Engineer Koehler Instrument Company...
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Page 5: Table Of Contents
K244XX Programmable Ashing Furnace Operation and Instruction Manual Table of Contents 1 Introduction ........................2 1.1 Koehler’s Commitment to Our Customers ..................... 2 1.2 Recommended Resources and Publications ..................2 1.3 Instrument Specifications ........................2 2 Safety Information and Warnings ................3 3 Getting Started....................... -
Page 6: Introduction
Temperature Range: Ambient to 1200°C provide you with the best solutions. You can Temperature Control depend on Koehler for a full range of accurate and Accuracy: ± 1 °C reliable instrumentation as well as support for your laboratory testing programs. Please do not... -
Page 7: Safety Information And Warnings
Unit Design. This equipment is specifically that the carrier inspect the shipping container and designed for use in accordance with the applicable equipment. Do not return goods to Koehler without standard test methods listed in section 1.2 of this written authorization. -
Page 8: Temperature Controller
K244XX Programmable Ashing Furnace Operation and Instruction Manual 3.2.2 Assembling the Ventilation Pipe 3.2.4 Initial Heating Procedure • To dry out the brick lining and to create an oxide protection layer on the resistance wire, an initial heat run must be performed prior to testing. -
Page 9: Basic Controller Operation
K244XX Programmable Ashing Furnace Operation and Instruction Manual Basic Controller Operation This section is designed to help guide you through the touch screen interface and menu structure, so that you can navigate through the various operation, monitor and setup screens and learn how to use them. Touch Screen Interface The display is split into two sections;... - Page 10 K244XX Programmable Ashing Furnace Operation and Instruction Manual NOTE: A single press of the left or right arrows will scroll program steps to the next step or screens to the next available loop or chart. Pressing and holding the arrow keys will continue the item scrolling until the last step of the program is reached or the button is released.
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Page 11: Operation
Koehler offers shelves, etc. so that the furnace chamber can be used in the most efficient way possible. -
Page 12: Display Menu Navigation
K244XX Programmable Ashing Furnace Operation and Instruction Manual 5.3 Display Menu Navigation The display provides the user with the ability to select text based menu navigation, much like the typical file menu system of a PC, as well as an icon based navigation system like that of a “smart” device. The user can switch back and forth between the two from the Setup menu. - Page 13 K244XX Programmable Ashing Furnace Operation and Instruction Manual Text Based Home Menu The View menu provides navigation to all standard view screens. These include the Single and Overall loop views, real time Charts, Alarm monitor, Alarm File and Events control screens. The Program menu provides access to the automatic ramp/soak program actions, Entry and Status views.
- Page 14 K244XX Programmable Ashing Furnace Operation and Instruction Manual Icon/Slide Page Based Home Menu Slide page 1 provides navigation to all standard view screens. These include the Single and Overall loop views, Event control, trend Charts, Alarm monitor, and Alarm File. It also provides quick access to the display Settings and Data file functions which include file utilities,...
- Page 15 K244XX Programmable Ashing Furnace Operation and Instruction Manual Automatic Ramp/Soak Program Menu The automatic ramp/soak program menu is provided when the user selects either “Entry” or “Status” from the Program menu. The menu provides all functions related to the creation, editing and operation of programs. See section 5 on Automatic Ramp/Soak Program Operation for detailed information on how to create and run programs.
- Page 16 K244XX Programmable Ashing Furnace Operation and Instruction Manual Icon/Slide Page Based Program Menu Slide page 1 provides navigation to the program Status, Entry and Settings screens and also provides access to the functions needed to create, open, save and delete automatic ramp/soak programs.
- Page 17 K244XX Programmable Ashing Furnace Operation and Instruction Manual Device Settings Menu The device settings menu is provided when the user selects “Settings” from the main “Device” menu. See section 8 on Device Settings for detailed information on these settings and their use. Text Based System Setup Menu The View menu provides navigation to the manual loop Tuning screen.
- Page 18 K244XX Programmable Ashing Furnace Operation and Instruction Manual Icon/Slide Page Based Device Settings Menu The Setup slide page provides access to the display controller settings. These include options for Navigation type, control loop set point Limits, Alarm set points, loop Tuning, Event tagname entry and Email server settings and Messaging.
- Page 19 K244XX Programmable Ashing Furnace Operation and Instruction Manual Offline Menu The offline menu is provided when the user selects “Offline” from the device settings “Offline” menu. See section 9 on Offline Settings for information on these settings and their use. NOTE: Offline settings can only be accessed when an automated ramp/soak program is not running and data logging is turned off.
- Page 20 K244XX Programmable Ashing Furnace Operation and Instruction Manual Icon/Slide Page Based Offline Menu Slide page 1 provides navigation back to the device Settings menu, Clock, Display settings, About the display and Exit application screens, temperature Units selection, Language, import/export Configuration utility and input Offset calibration.
- Page 21 K244XX Programmable Ashing Furnace Operation and Instruction Manual Data Menu The data log menu is provided when the user selects “Data” from the main “Data” menu. See section 7 on Data Logging for information on these settings and their use. Text Based Data Logging Menu The View menu provides access to the data file Annotation and digital Signature screens.
- Page 22 K244XX Programmable Ashing Furnace Operation and Instruction Manual Icon/Slide Page Based Log Menu Slide page 1 provides access to the main Data log screen and to the log point Assignment screen where the user can select which items are to be logged. Historical data file functions are provided for Opening and Deleting historical files and viewing/setting...
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Page 23: Notifications
K244XX Programmable Ashing Furnace Operation and Instruction Manual Notifications The notification window is a feature that can be accessed by pressing the date/time field in the icon bar. This window provides a snapshot of current the display activity. The notification window can be closed by pressing the date/time field again, or is automatically closed if the Menu, Home or an arrow icon is pressed. -
Page 24: Control Loops (Single Set Point Operation)
K244XX Programmable Ashing Furnace Operation and Instruction Manual Control Loops (Single Set point Operation) The loop view screens provide direct viewing options for the control and monitoring of the display control loops. The loop screens allow the user to adjust the current loop set point (SP) and view the process variables (PV) and percentages of output (%) for each loop. - Page 25 K244XX Programmable Ashing Furnace Operation and Instruction Manual The loop control function buttons are used to define the mode of operation of the loop. Manual Control - This button switches the loop mode between automatic and manual operation. When the loop is in automatic mode, the loop will automatically adjust its output based on its PID settings.
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Page 26: Event Control
K244XX Programmable Ashing Furnace Operation and Instruction Manual Event Control Events are the “switches” used to turn the digital outputs of the display loop controls on and off. These events can be manually turned on and off as well as programmed into automatic ramp/soak programs so that they can be turned on and off at set time intervals. -
Page 27: Process Monitoring
K244XX Programmable Ashing Furnace Operation and Instruction Manual Process Monitoring The loop view screens provide the current process values of the display. In order to view the process inputs over time, the display provides real-time charts. Four user configurable charts are provided with up to eight plot points per chart. - Page 28 K244XX Programmable Ashing Furnace Operation and Instruction Manual Chart Setup To configure a chart, press the “Set” button in the upper right corner of the display. The setup screen will be shown. To assign channels to the chart, simply touch the on/off button for the desired items in the list to select them.
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Page 29: System Alarms
K244XX Programmable Ashing Furnace Operation and Instruction Manual Automatic Scale - When on, the vertical axis will automatically adjust its zero and span as needed to display the selected plot channels. System Alarms When an alarm condition occurs, the alarm icon flashes in the display icon bar, to provide a visual indication of an alarm condition. - Page 30 K244XX Programmable Ashing Furnace Operation and Instruction Manual Alarm File The Alarm File screen is accessed from the home “View” menu. It displays all alarms for any given day. the display can store daily alarm files for a period of a year or longer (time based on storage usage for data history).
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Page 31: Automatic Ramp/Soak Program Operation
K244XX Programmable Ashing Furnace Operation and Instruction Manual Automatic Ramp/Soak Program Operation A ramp/soak program is a set of instructions (set points and events) programmed as a timed sequence of steps. When a program is run, the display executes each step of the program automatically, in sequence, based on the time duration and settings for each step. -
Page 32: Program Settings
K244XX Programmable Ashing Furnace Operation and Instruction Manual Program Settings The program settings are used to select the mode of operation for the automatic ramp/soak programs. The program Settings screen is accessed from the “Program” menu. The Single mode selection button allows each control loop to run independently of the others. Programs are then downloaded separately to each loop control. -
Page 33: Entering A Ramp/Soak Program
K244XX Programmable Ashing Furnace Operation and Instruction Manual Entering a Ramp/Soak Program Ramp/Soak programs are created and edited from the program Entry screen. The program Entry screen can also be accessed directly from the “Program” menu. To create an automatic ramp/soak program: From the File menu, select “New”... - Page 34 K244XX Programmable Ashing Furnace Operation and Instruction Manual Setting Step Set Points and Time Programs are entered as a sequence of ramp and soak steps which define the set point and length of time that a loop should remain. The ramp and soak units can both be set for hours and minutes, minutes and seconds or one can be set for hours and minutes while the other is set for minutes and seconds.
- Page 35 K244XX Programmable Ashing Furnace Operation and Instruction Manual NOTE: A step time of zero can be entered for a step to implement an immediate set point change. When coupled with a hold back condition on the following step, there is no need to know the time it takes for the process to reach set point.
- Page 36 K244XX Programmable Ashing Furnace Operation and Instruction Manual You can then select which events are to be on during the step by touching the on/off button for each event to toggle the events on or off. Pressing the left or right arrow button will allow you to scroll through each step of the program and not have to leave the step Events screen.
- Page 37 K244XX Programmable Ashing Furnace Operation and Instruction Manual To program a jump step, select jump for the step type and enter the step number that you want the program to jump back to along with the total number of times the jump is to be made. A cycle count of one indicates that no jump will be made since one cycle is completed upon reaching the jump step.
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Page 38: Starting An Automatic Ramp/Soak Program
K244XX Programmable Ashing Furnace Operation and Instruction Manual Hold Back Operation The hold back band setting on the Entry screen is used to set the control tolerance of the loop during the steps that have hold back enabled. When the loop process variable deviates from its set point by more than the band value, the program timer will stop until the process variable re-enters the hold back band. - Page 39 K244XX Programmable Ashing Furnace Operation and Instruction Manual The screen will automatically change to the Start screen. By default, a program will always start on step 1. If you wish to start the program on a different step, press the start step field and enter the desired start step or use the left and right skip buttons to adjust the step number.
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Page 40: Monitoring Automated Ramp/Soak Program Operation
K244XX Programmable Ashing Furnace Operation and Instruction Manual Monitoring Automated Ramp/Soak Program Operation The program Status view provides all information regarding the operation of a program for each control loop configured in the system. When a program is first started, the display automatically directs the user to this screen to observe program operation for the loop the program was started on. -
Page 41: Common Questions About Ramp/Soak Program Operation
K244XX Programmable Ashing Furnace Operation and Instruction Manual Common Questions About Ramp/Soak Program Operation How do I start or run a ramp/soak program? To select and start a program, you must be on the ‘Entry’ or ‘Status’ screen. Using the File menu, choose the ‘Open’... -
Page 42: Service Trouble Shooting
K244XX Programmable Ashing Furnace Operation and Instruction Manual Service Trouble Shooting 6.1 Replacing the heating plates or heating coil Removal • Remove the rear cover • Disconnect the power wires to the heaters and the thermocouple wires at the terminal block •... -
Page 43: Wiring Diagram
K244XX Programmable Ashing Furnace Operation and Instruction Manual 7 Wiring Diagram -39- K244XX-Manual... -
Page 44: Service
Goods must be returned freight prepaid. Returns will be subject to a restocking charge, the We, at Koehler, would like to thank you for your application of which will depend upon the equipment purchase, which is protected by the circumstances necessitating the return. -
Page 45: Notes
K244XX Programmable Ashing Furnace Operation and Instruction Manual Notes -41- K244XX-Manual... - Page 46 K244XX Programmable Ashing Furnace Operation and Instruction Manual Notes -42- K244XX-Manual...
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