USB-500 Series

Hello redrock - Unfortunately, the USB-500 Series, which includes the USB-501-LT are not designed to be submerged in water. They are IP67 compliant which means that they are dust proof and can be immersed in water up to 1 meter for a short length of time. Please contact Sales Engineering at 508-946-5100 to discuss alternative products.

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Hello - The USB-501-LT utilizes a CR1620 replaceable lithium button cell battery and the average battery life is 1 month. If a rechargeable battery is desired, please use our USB-501-RCG. For a longer life/replaceable battery, you can always use our USB-501. The USB-501 uses a replaceable lithium ½ AA battery (TEKCELL SB-AA02) and the average battery life is 1 year. The USB-500 series dataloggers are not designed for continuous connection via the USB port. The USB connection is only to be used for configuration and off loading of your data. Continuous connection to a USB port will prematurely drain your battery.

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Hello Paul - The USB-501-TC does not come with any calibration certification. Measurement Computing guarantees the published accuracy for up to 1 year.

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Hello CalTech - No re-calibration is possible for the USB-500 series loggers, as there are no adjustments that can be made. They are warranted to meet published specs for 1 year.

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The supplied thermocouple probe (removable) is itself only rated to + 400 deg C. You can connect a different thermocouple (that you procure elsewhere) and with that the logger can read up to +1300 deg C.

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There are three configurable options for starting the USB-501-TC-LCD logger.

• 1 – Start Immediately
• 2 – Start when logger button is pushed
• 3 – Start on selected time and date

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Dear ARH, The short answer is yes, the USB-501-TC can be used to measure negative temperature readings. To do so you will need to use a different thermocouple that supports your temperature requirements. To explain, thermocouples come with various types of insulation based on how they are going to be utilized. The problem here is that the insulation used on the K type thermocouple (that is included with your order) will not support temperatures below 0 or above 400 degrees C. You will need to locate a manufacturer that offers a thermocouple that supports your requirements. You can review the specifications for the USB-501-TC here: http://www.mccdaq.com/PDFs/specs/usb-500-600-series-data.pdf

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Hello - The input impedance for the USB-503 is rated at 60 Kohms.

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The USB-503 covers a wide input range (0-30V) and has a resolution of 50 mV, so for sure it won’t meet your needs. We also offer the USB-5106, which when paired with the CABLE-ADAP5, results in a 0-5V input range with measurement resolution of 80 uV. The LCD display shows 3 digits to the right of the decimal point, while the log file values have 5 digits to the right of the decimal point.

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The LED status description is somewhat lengthy for this response so I recommend that you review the LED status table which is located in the USB-500/600 Help file and can be located here: http://www.mccdaq.com/pdfs/manuals/USB500600Help.zip Under the “Contents” folder double click on the LEDs topic and then scroll down until you get to the USB-503/504 LED status table. As stated above the LEDs are used for notifications other than alarm conditions so I am afraid that a phototransistor would not work in this case.

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The USB-503 is a stand-alone voltage data logger that can be connected to any compatible voltage source that needs to be monitored. It is capable of storing up to 32,000 samples of voltage data within a 0-30 volt range. The data is then stored to on-board memory which can then be downloaded to your PC for further analysis.

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