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OM-USB-5201 User's Guide  

Functional Details 

19 

External power required for data logging 

Due to processing limitations, data logging is not allowed when the OM-USB-5201 is attached to an active USB 

bus. The OM-USB-5201 must be connected to the standalone power supply to perform data logging. 

External power supply 

The external power supply is used to power the OM-USB-5201 during data logging operations. This power 

supply is a 2.5 W USB power adapter. 

Disconnecting the OM-USB-5201 from the computer  

You don't need to shut down your computer to disconnect the OM-USB-5201. Refer to the instructions below 

when disconnecting the OM-USB-5201 from your computer's USB port. 
When running Windows XP, use the Unplug or Eject icon on the computer's taskbar to safely stop the OM-

USB-5201 before you unplug the device. To do this, right-click on the icon, select the OM-USB-5201 and click 

Stop

. Windows will notify you when it is safe to disconnect the device from your computer. 

When running Windows 2000, the Unplug or Eject icon does not appear in the taskbar when the OM-USB-5201 

is connected to the USB port. Do not disconnect the OM-USB-5201 from the computer when the device's LED 

is flashing (transferring data), or data may be lost. When you disconnect the device, an Unsafe Removal of 

Device warning may appear. However, no data is lost on the device when you remove the OM-USB-5201 when 

the LED is steady green. This information applies to all OM-USB-5201 devices, regardless of the firmware 

version installed. 

Transferring binary data after a logging session 

Data is stored on the memory card in binary files. After logging measurements, you can transfer the files to your 

computer by reconnecting the OM-USB-5201 to a USB port on your computer or by removing the 

CompactFlash card from the OM-USB-5201 and using a card reader connected to your computer.  
Note that when installed with firmware version 3 and later the OM-USB-5201 appears as a Mass Storage 

Device when connected to a USB port on your computer, so you can copy files using Windows Explorer.  

Converting binary data after a logging session 

If your OM-USB-5201 is connected to a USB port on your computer, you can use InstaCal or TracerDAQ to 

convert the files on the CompactFlash card to .CSV format for use in Microsoft Excel files, or to .TXT format 

for use in other applications. 
If you transferred binary files to your computer hard drive or removed the CompactFlash card from your OM-

USB-5201 and are using a card reader connected to your computer, use TracerDAQ to import the files and save 

them as .CSV or .TXT format. InstaCal can only convert files when the CompactFlash card is in a OM-USB-

5201 connected to your computer. 

 

Summary of Contents for OM-USB-5201

Page 1: ......

Page 2: ...6 USA Canada only Tel 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide omega com info omega com The information contained in this document is believed...

Page 3: ...nfiguring data logging options 11 Calibrating the OM USB 5201 11 Chapter 3 Sensor Connections 12 Screw terminal pin out 12 Thermocouple input terminals C0H C0L to C7H C7L 13 Ground terminals GND 13 Po...

Page 4: ...ations 20 Accuracy 21 Thermocouple measurement accuracy 21 Throughput rate to PC 21 Digital input output 22 Temperature alarms 22 Memory 22 Microcontroller 23 Data Logging 23 Real time clock 24 USB 5V...

Page 5: ...ements present information to help you avoid injuring yourself and others damaging your hardware or losing your data bold text Bold text is used for the names of objects on a screen such as buttons te...

Page 6: ...each alarm is software configurable as active high or low You set up the temperature threshold conditions to activate each alarm When an alarm is activated the associated DIO channel is driven to the...

Page 7: ...n the block diagram shown here Figure 1 OM USB 5201 functional block diagram Software features For information on the features of InstaCal and the other software included with your OM USB 5201 refer t...

Page 8: ...s stored on the OM USB 5201 The OM USB 5201 is plug and play There are no jumpers to position DIP switches to set or interrupts to configure You can connect the OM USB 5201 before or after you install...

Page 9: ...watt USB adapter for data logging operations Omega part number OM USB 5200 ADAPTOR Documentation In addition to this hardware user s guide you should also receive the OMB DAQ 2400 OM USB OM WEB and O...

Page 10: ...B 5201 for the first time Found New Hardware popup balloons Windows XP or dialogs other Windows version open as each OM USB 5201 interface is detected It is normal for multiple dialogs to open when yo...

Page 11: ...rmat set the start mode set up alarm conditions copy and convert saved binary files delete data files All data logging options are stored on the OM USB 5201 in non volatile memory in EEPROM and are lo...

Page 12: ...acies of each type to determine which is best suited for your application Screw terminal pin out The OM USB 5201 has four rows of screw terminals two rows on the top edge of the housing and two rows o...

Page 13: ...9 DIO7 Digital Input output 24 DIO1 Digital Input output 50 DIO6 Digital Input output 25 DIO2 Digital Input output 51 DIO5 Digital Input output 26 DIO3 Digital Input output 52 DIO4 Digital Input outpu...

Page 14: ...e thermocouple Wiring configuration Connect the thermocouple to the OM USB 5201 using a differential configuration as shown in Figure 3 Figure 3 Typical thermocouple connection Connect thermocouples t...

Page 15: ...couples the thermocouples are no longer isolated In this case thermocouples must not be connected to any conductive surfaces that may be referenced to earth ground For general information regarding di...

Page 16: ...ftware algorithm automatically corrects for the additional thermocouples created at the terminal blocks by subtracting the calculated cold junction voltage from the analog input s thermocouple voltage...

Page 17: ...for screw terminal descriptions USB connector When not logging data connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer When connected to...

Page 18: ...ime data is captured Blinks on once per second until specified data time to log data occurs Then it turns on and blinks each time data is captured Any logging mode Blinks rapidly 250 ms period and con...

Page 19: ...nnect the device an Unsafe Removal of Device warning may appear However no data is lost on the device when you remove the OM USB 5201 when the LED is steady green This information applies to all OM US...

Page 20: ...ormal mode rejection ratio fIN 60 Hz 90 dB min Common mode rejection ratio fIN 50 Hz 60 Hz 100 dB min Resolution 24 bits No missing codes 24 bits Input coupling DC Warm up time 30 minutes min Open the...

Page 21: ...on each side of the module The accuracy listed above assumes the screw terminals are at the same temperature as the CJC sensor Errors shown do not include inherent thermocouple error Please contact yo...

Page 22: ...not be connected to any conductive surfaces that may be referenced to earth ground Temperature alarms Table 6 Temperature alarm specifications Number of alarms 8 one per digital I O line Alarm functio...

Page 23: ...ss less than 5 seconds have elapsed since power on Note Data logging is not allowed when the device is attached to an active USB bus due to processing limitations The device must be connected to the s...

Page 24: ...Isolation Measurement system to PC 500 VDC min AC adapter power supply used for data logging operation Output voltage 5V 5 Output wattage 2 5 W Input voltage 100 240 VAC 50 60 Hz Input current 0 2 A...

Page 25: ...28 AWG D D USB cable length 3 meters max Environmental Table 14 Environmental specifications Operating temperature range 0 to 70 C Storage temperature range 40 to 85 C Humidity 0 to 90 non condensing...

Page 26: ...6 RSVD Reserved Do Not Use CJC sensor CJC sensor 11 RSVD Reserved Do Not Use 37 RSVD Reserved Do Not Use 12 NC 38 GND 13 C2H CH2 sensor input 39 C5L CH5 sensor input 14 C2L CH2 sensor input 40 C5H CH5...

Page 27: ...y OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limite...

Page 28: ...ity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial...

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