Page 2 - ii
OM-550 u ii u 3.0 SET-UP ........................................................................................................................................... 18 3.1 POWER CONNECTION .......................................................................................................... 18 3...
Page 3 - iii; Introduction; User’s Guide; Terms used in this Manual; Informs the user that the note includes important information.; Product Symbols
OM-550 u iii u Introduction This User’s Guide explains how to use OM-550. This manual is written for users of varied experience. If a section covers informationyou already know, feel free to skip to the next section. •• Terms used in this Manual In this manual, the following definitions are used for...
Page 4 - iv; Operator Safety Information; PRODUCT USAGE WARNINGS:; constitutes a fire or explosion risk.
OM-550 u iv u Operator Safety Information The safety information in this summary is for the benefit of operating personnel.Warnings and Cautions will also be found throughout the manual where they apply. PRODUCT USAGE WARNINGS: For fire and electric shock protection, DO NOT connect the input channel...
Page 10 - ON; beep; OFF
OM-550 u 5 u •• ON-OFF The ON-OFF key activates the OM-550. If the unit is “OFF”, pressing the ON key will activate it, light the Activity LED and beep the horn. When the key is released, the unit will print the key name, time, date, and a command menu: Figure 2-5 If the OM-550 is “ON”, pressing the...
Page 11 - OPERATION AT FULL CACHE
OM-550 u 6 u •• RUN The RUN key activates the OM-550 to begin logging. The data is stored in internal memory, optionally printed, and can be transferred to a PC at a later time. When the RUN key is pressed, the messages shown in Figure 2-8 are displayed. Figure 2-8 This printout shows the pressed ke...
Page 14 - To remove the Viewing Window:
OM-550 u 9 u 2.1.4 PRINTER WINDOW The OM-550 has a protective viewing window that can be removed to clear paper jams,or to allow closer inspection of the print head & paper path. To remove the Viewing Window: 1. Lift under the bottom edge to a 45-degree angle, then pull it away from the case, as...
Page 16 - CALIBRATION
OM-550 u 11 u 2.1.9 GAIN ADJUST The Gain Adjust holes are used when performing a Voltage or Temperature calibrationprocedure. There are two holes located on the bottom of the OM-550 one for adjustingthe Volt Gain and another for adjusting the Temp Gain (see APPENDIX A: CALIBRATION for more informati...
Page 17 - the DC power plug is inserted into the DC Jack.
OM-550 u 12 u 2.2 POWER SUPPLIES As previously discussed the OM-550 operates from four AA internal batteries, ACpower adapter, DC power cable or an external rechargeable battery pack. Prior to use,always ensure that external power supplies are operating properly before connectingthem to the OM-550. ...
Page 18 - PROBE INPUT RANGE m b dp PRINT RANGE UNITS; VOLTAGE INPUT SCALING
OM-550 u 13 u 2.3 INPUTS As previously discussed, the OM-550 accepts either voltage or thermocouple inputs.The Signals discussed in this section are input through one of the channel connectorson the right side of the OM-550. 2.3.1 VOLTAGE (TRANSDUCER) INPUTS The Voltage connector used for inputs is ...
Page 20 - PROGRAMMED FEATURES; ACTIVE CHANNELS; key after executing a Manual Reset, explained in; for more
OM-550 u 15 u 2.4 PROGRAMMED FEATURES There are special programmed features that support the operation of the OM-550.These features are described in the following sections. 2.4.1 DATA CACHE The OM-550 contains a 28 Kbyte data cache that retains its data even when the unit is“OFF”. Each data point oc...
Page 21 - When the; STOP; key pressed after a data run, the Statistics are then printed. This
OM-550 u 16 u 2.4.2 STATISTICS When the STOP key pressed after a data run, the Statistics are then printed. This printout shows the date, time, number of samples taken (N), and the minimum, average,and maximum values (by channel) of the data presently stored in the cache: Figure 2-15 If " ******...
Page 22 - VOLTS
OM-550 u 17 u 2.4.3 POWER-SAVE MODE When logging data, the OM-550 prolongs its battery life by automatically turning “OFF”(power-save mode) when unattended (no key closures detected for about 1 minute). Ifthe OM-550 is in RUN mode it will wake and log data at the next appropriate time. When the OM-5...
Page 25 - PAPER INSTALLATION; Unwind several inches of paper from the paper roll.; PAPER FEED; ” key to feed the paper through
OM-550 u 20 u 3.2 PAPER INSTALLATION 1. Unwind several inches of paper from the paper roll. 2. Fold the end of the thermal paper over creating a straight flat edge as shown in Figure 3-2. This creates a strong edge and allows the paper properly center inthe printer when inserting it into the rear pa...
Page 26 - DATA PORT CONNECTION; 5 PIN ADAPTER
OM-550 u 21 u 3.3 DATA PORT CONNECTION Prior to transferring data, the OM-550 must be connected to a PC with the RS-232cable assembly supplied with the kit. The cable assembly includes a telephone-stylecable and two adapters. The OM-550 for Windows software supplied with the kit isused to transfer d...
Page 27 - Programming outline:; APPENDIX A: CALIBRATION
OM-550 u 22 u 4.0 PROGRAMMING When prior to operating the OM-550 it must first be programmed. This section coversall of the programming options available. All programmed settings but the time & dateare stored in EEPROM and retained even if the batteries are removed. •• Programming outline: 1. Se...
Page 30 - TEMPERATURE CHANNELS; Refer to section
OM-550 u 25 u 4.3 TEMPERATURE CHANNELS Any of the five channels can be programmed as Temperature channels. The user mayselect one of the four standard thermocouple types: J, K, T, or E and three optionaltypes: B, S, or R. The Thermocouple types can be mixed. For example, channel #1 with a Type Ether...
Page 32 - The each active channel is scanned once during each log interval.; Choose not to print the data at RUN time.; second
OM-550 u 27 u 4.6 LOG INTERVAL The each active channel is scanned once during each log interval. The Log Interval is the time between readings, expressed in HH:MM:SS(hours:minutes:seconds). It can be programmed from one second to one day (00:00:01to 23:59:59). The Keypad has no colon key, so enter t...
Page 33 - or; PROG; keys are pressed and new data is stored during logging. The OM-; RUN
OM-550 u 28 u 4.7 OPERATION AT FULL CACHE (RECORDING TIME) The OM-550 includes a battery-backed, 28-Kb data cache. The cache is erased whenthe RUN or PROG keys are pressed and new data is stored during logging. The OM- 550 can be programmed to stop when the data cache is full or to log continuously ...
Page 34 - TEMPERATURE UNITS; for more information.; REJECTION FREQUENCY
OM-550 u 29 u 4.8 DATE The current date is entered during programming and is kept in a real-time clock that isbacked by the AA batteries. The clock will then be accurate unless the batteries areremoved or a Manual Reset is executed. The Keypad has no colon key, so enter the date as six numbers and t...
Page 35 - CALIBRATION MODE; To return to Normal mode:; Reprogram the unit, answering
OM-550 u 30 u 4.12 CALIBRATION MODE The OM-550 includes a Cold-Junction Compensation network server that isautomatically disabled during temperature calibration. Calibration mode temperaturemeasurements performed in the usual manner will appear abnormal with the OM-550 inthe CAL mode. When the OM-55...
Page 37 - and; TRANSDUCER
OM-550 u 32 u 4.14 VOLTAGE INPUT SCALING Any of the input channels (1 through 5) may be programmed as Voltage channels.Each Voltage channel includes unique m and b constants for "scaling" data to your application. These constants default to +1.00000 and 000000, respectively, when thechannel ...
Page 38 - Use one resistor to develop the necessary voltage at the input:; VDC
OM-550 u 33 u 4.14.3 MATCHING A CURRENT TRANSDUCER Use one resistor to develop the necessary voltage at the input: R1 V OM-550 INPUT I TRANSDUCER OUTPUT + - Figure 4-9 V = OM-550 maximum input voltage= 2.0000 VDC = R1 * I I = 1/2 transducer's maximum output current R1 = 2 / I The 4-20 mA Current Pro...
Page 40 - MATCHING AND SCALING A VOLTAGE TRANSDUCER; output at a maximum current of 3 mA.
OM-550 u 35 u 4.14.5 MATCHING AND SCALING A VOLTAGE TRANSDUCER EXAMPLE: Given a 20 - 90 % RH (Relative Humidity) transducer with a 0 - 10 VDC output at a maximum current of 3 mA. Program the OM-550 to indicate 20.00 %RH to 90.00 %RH (that is, to indicate %RHwith 0.01% resolution). If a ±10 Voltage P...
Page 42 - MATCHING AND SCALING A CURRENT TRANSDUCER
OM-550 u 37 u 4.14.6 MATCHING AND SCALING A CURRENT TRANSDUCER Example: Given a 0 - 150-PSI transducer with a 4-20 mA output. Program the OM-550 to indicate 0 - 150 PSI with 0.01-PSI resolution. If the 4-20 mA Current Probe is being used, begin with step 2, below. (This probe isalready matched to th...
Page 45 - key to confirm the current programming information.; to advance to the next item.
OM-550 u 40 u 5.0 OPERATION The following section will guide the user through a typical logging process. These stepsmay vary depending on the type of data the user is logging. When using this procedureit may be necessary to refer to section 4.0 PROGRAMMING for proper programming procedures and alter...
Page 46 - Enter the desired Log Interval time, or press
OM-550 u 41 u 3. Enter the desired Log Interval time, or press OK to advance to the next item. Figure 5-3: Log Interval Time 4. Select whether to stop collecting data when the Cache is full, collect data continuously, or press OK to advance to the next item. OR Figure 5-4: Operation at Full Cache 5....
Page 47 - Select the Rejection frequency, or press
OM-550 u 42 u 6. Enter the current Date, or press OK to advance to the next item. Figure 5-6: Current Date 7. Select the desired temperature units, or press OK to advance to the next item. OR Figure 5-7: Temperature Units 8. Select the Rejection frequency, or press OK to advance to the next item. OR...
Page 48 - to finish programming.
OM-550 u 43 u 9. Turn the Cal mode ON, OFF, or press OK to advance to the next item. OR Figure 5-9: Cal Mode Selection 10. Enter a Tadjust value, or press OK to finish programming. Figure 5-10: Tadjust Value Selection • Programming is now complete and the list of functions will be printed.
Page 49 - key and the OM-550 will print the log interval, stop time and
OM-550 u 44 u 11. Press the RUN key and the OM-550 will print the log interval, stop time and prompt the user to choose if they want to print the data while logging. Wheneither YES or NO is selected the data collection process automatically begins. Figure 5-11 12. When the data collection process is...
Page 50 - A Manual Reset programs the OM-550 as follows:; A collection of messages similar to the one shown in
OM-550 u 45 u APPENDIX A: CALIBRATION •• MANUAL RESET A Manual Reset returns the OM-550 to a "known" condition. This is useful whentroubleshooting or learning to program the unit. A Manual Reset programs the OM-550 as follows: • CH1 is a Voltage channel, m=1.00000, b=000000, dp=4, units = (6...
Page 51 - CALIBRATION PROCEDURE; Perform a Manual Reset; key to enter the programming mode
OM-550 u 46 u •• CALIBRATION PROCEDURE Using the following Calibration procedure we recommend that the OM-550 isrecalibrated every 6 months. Setup: 1. Perform a Manual Reset 2. Press the PROG key to enter the programming mode 3. Expect a printout similar to the following: Figure A-2 4. Answer the pr...
Page 53 - Press; on the keypad to enter the programming mode, then use the
OM-550 u 48 u •• EXITING CAL MODE When calibration is complete, the unit is still in the CAL mode (it is ignoring the coldjunction compensation). To return to normal operation: • Press PROG on the keypad to enter the programming mode, then use the OK key to step down through the menu to the Calibrat...
Page 54 - SPECIFICATIONS; VOLTAGE MEASUREMENT INPUTS:
OM-550 u 49 u APPENDIX B: SPECIFICATIONS (OM-550 at 25°C unless otherwise stated) VOLTAGE MEASUREMENT INPUTS: IMPEDANCE: 10 Meg Ω nominal RANGE: ±2 VDC RESOLUTION: 100 µV ACCURACY: ±500 µV CMRR: >120 db at 50/60 Hz NMRR: > 45 db at 50/60 Hz ABSOLUTE MAXIMUM OVERVOLTAGEPROTECTION: 120 VAC THERM...
Page 55 - AC
OM-550 u 50 u PRINTER TYPE: 24-Column Thermal PAPER ROLL CAPACITY: 82 ft ±1.6 ft LINE HEIGHT: 0.150 inches per printed line LINES PER ROLL: 6,560 ±128 PAPER LIFE (Printing 5 channels every 10-min.) Approximately 217 hours or 9 days DIGITAL INTERFACE (RS-232) COMMUNICATION FORMAT: 9600 baud, No parit...
Page 58 - TABLE OF CONTENTS
OM-550 DOS Software ♦ ♦ i ♦ ♦ TABLE OF CONTENTS INTRODUCTION ..................................................................................................................................... ii Ÿ How to Use This Manual ................................................................................
Page 59 - INTRODUCTION; Software User’s Guide; How to Use This Manual; do not need; ŸŸ; Terms Used in this Manual; Thermocouple
OM-550 DOS Software ♦ ♦ ii ♦ ♦ INTRODUCTION This Software User’s Guide explains how to use Omega’s OM-550 DOS software. The software requires an IBM PC or compatible, with 640K of ram and 1 or 2 serial ports. The software is supplied on a 3 ½” disk, and it is recommended that at lease onebackup co...
Page 60 - Fonts Used in this Manual; Master Menu; File Formats; Load Existing LOG File
OM-550 DOS Software ♦ ♦ iii ♦ ♦ ŸŸ Fonts Used in this Manual This manual uses a special font to indicate terms or words that can be found directly onthe PC display. For Example: The Master Menu options change to match what you are doing. This font indicates the words Master Menu are actually found i...
Page 61 - PC Hardware Requirements; Disk Drive; At least one port in addition to the one used for the mouse.; Video; Color printer is recommended.
OM-550 DOS Software ♦ ♦ iv ♦ ♦ PC Hardware Requirements Before OM-550 DOS software can be used, a 386 or better computer will be required torun the software. Specific recommendations are as follows: CPU, RAM, Hardware: 386640K RAM (minimum).400KB of free disk space. Disk Drive : 3.5” high-density fl...
Page 62 - Software Installation; HARD DRIVE INSTALLATION; instalit
OM-550 DOS Software ♦ ♦ v ♦ ♦ Software Installation The software is on a 3.5” floppy disk and before it is installed on a PC, make a backupcopy of the program disk, you should never work from your original program disks. Besure to view the README file on the program disk before installing the softwa...
Page 63 - STARTING THE PROGRAM; To start the program:; When the program begins it will display the
OM-550 DOS Software u 1 u 1.0 STARTING THE PROGRAM To start the program: 1. At the DOS prompt type the DOS command, CD (change directory), drive name, colon, backslash and the program name and hit the [enter] key. For example, if the program in installed in the default directory C:\M50 type: • CD C:...
Page 66 - LOAD EXISTING LOG FILES; Load Existing LOG Files; an incorrect entry in entered, an error message will appear.
OM-550 DOS Software u 4 u 2.2 LOAD EXISTING LOG FILES Option #2 Load Existing LOG Files , on the Master menu allows the user to load saved LOG files into the software program. To load a LOG file: 1. Press the key and a list of saved experiment files will appear. The list includes the Log Interval us...
Page 67 - MODIFY SOFTWARE CONFIGURATION; Modify Software Configuration
OM-550 DOS Software u 5 u 2.3 MODIFY SOFTWARE CONFIGURATION Option #3 Modify Software Configuration , on the Master menu allows the user to configure the system by selecting the serial port, printer, print orientation, companyname, and next file number. The choices made using this option will be aut...
Page 69 - LIST DATA ON MONITOR; List Data on Monitor
OM-550 DOS Software u 7 u 2.4 LIST DATA ON MONITOR Option #4 List Data on Monitor , on the Master menu allows the user to view the experiment data in columnar format. To list data: 1. Press the key and experiment data will start scrolling vertically across the screen. To stop or start the data, pres...
Page 70 - PRINT DATA ON PRINTER; Print Data on Printer; To save data as text:; Formats section or more information.
OM-550 DOS Software u 8 u 2.5 PRINT DATA ON PRINTER Option #5 Print Data on Printer , on the Master menu allows the user to print the data in columnar format on the selected printer as discussed in section 2.3 MODIFY SOFTWARE CONFIGURATION . To print data: 1. Press the key and the printing process w...
Page 71 - To edit a plot label:; key and the Plot Label screen will appear.
OM-550 DOS Software u 9 u 2.7 EDIT PLOT LABELS Option #7 Edit Plot Labels , on the Master menu allows the user to choose Plot Labels for any OM-550 channel. Plot Labels are text on the Hot Plot graph to identify the data from each individualchannel, the graph Title or other notes about the data. For...
Page 72 - The HOT PLOT has the following features:
OM-550 DOS Software u 10 u 2.8 HOT PLOT Option #8 HOT PLOT , on the Master menu plots the experiment data in a graphical format and allows the user analyze the data. The HOT PLOT screen is designed for use with either a mouse or a keyboard andthis manual describs the functionality for both. The HOT ...
Page 74 - To Magnify a portion of the Data Graph:; Magnify
OM-550 DOS Software u 12 u 2.8.2 MAGNIFY TOOL The Magnify tool enlarges any selected area of the graph for easy visual examination. To Magnify a portion of the Data Graph: 1. Click the Magnify tool. A message box will appear below the Magnify Tool informing the user to: “ Click and drag to select ar...
Page 77 - To select a channel to graph:
OM-550 DOS Software u 15 u 2.8.4 CHANNEL DATA The Channel Data includes status boxes to show which channels are presentlyselected (graphed) and which are linked together on a common Y-Axis scale. Theboxes in the right column show which channels are “Selected” and the boxes in the leftcolumn show whi...
Page 81 - Data Plots
OM-550 DOS Software u 19 u • Data Plots The Data Plots in the Data Graph represent the data for each of the channels on theOM-550. Each channel is represented by a different color and corresponds to the colorof its channel description in the X-Cursor Data Table • X-Data Cursors Three vertical cursor...
Page 82 - APPENDIX A: KEY FUNCTIONS; To activate the Help menu:; key and the Help menu will appear.
OM-550 DOS Software u 20 u 2.8.6 HELP MENU Another feature of the HOT PLOT is the Help Menu. This menu lists all availableKeyboard functions. Refer to APPENDIX A: KEY FUNCTIONS for more details. To activate the Help menu: 1. Press the key and the Help menu will appear. 2. When finished, press the [e...
Page 83 - LIST EXISTING LOG FILES ON PRINTER; List Existing Log Files on Printer
OM-550 DOS Software u 21 u 2.9 LIST EXISTING LOG FILES ON PRINTER Option #9 List Existing Log Files on Printer , on the Master Menu prints the saved LOG files to the printer. Set the printer up using Option #3 Modify Software Configure. To list log files: 1. Press the key, and the printing process w...
Page 84 - Prints Screen
OM-550 DOS Software u 22 u APPENDIX A: KEY FUNCTIONS There are several keys used to control functions on the HOT PLOT screen the keysand functions they control are listed below. Selects X-Cursor #1 Toggles Channel 1 (ON/OFF) Selects X-Cursor #2 Toggles Channel 2 (ON/OFF) Selects X-Cursor #3 Toggles ...