USB-2416 Series

Yes, the USB-2416 supports 32 single-ended and or 16 differential inputs and can be configured for both thermocouple and voltage inputs concurrently.

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Only MCC’s factory can perform a full re-calibration of the USB-2416 model. In the field, you can verify the accuracy for the range(s) you need/use, by installing our free InstaCal software utility. From within InstaCal, make sure the datarate for each and every channel is set to 60 Hz in InstaCal. 60 Hz is the setting recommend for thermocouple, so that 60 Hz noise can be better rejected. Make sure the USB-2416 is warmed up for 45 minutes, then run the self-cal in InstaCal (hand's free). The self cal makes minor adjustments based on the last factory calibration, and does not extend the cal cycle past 1 year. Then use InstaCal's analog test, which samples just 1 channel at a time, and the value is displayed digitally on the screen. Voltage accuracy probably only needs to be checked on one channel, as it should not vary channel to channel. Thermocouple accuracy can vary channel to channel, due to cold junction compensation. You would compare the reading you see on the screen, to the maximum specs in the appropriate table in the back of the PDF manual for the USB-2416, though you may also have to factor in the accuracy of your signal source.

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No measurement data is stored on the USB-2416 after power removed. However, most Windows programs written to use the USB-2416 do utilize channel settings stored on the hardware. The software that does not is DAQami and some custom programs written by end-users using the device discovery feature of the UL. But for the vast majority of software(LabVIEW, TracerDAQ, DASYLab, and UL applications that fully rely on InstaCal), the settings stored on the USB-2416 are key to keeping track of. If you send a USB-2416 to us for repair and/or calibration, those settings will be lost. You should first go into InstaCal, to step through the per-channel settings (SE/DIFF, Voltage/Temperature, Datarate, TC type) and make a note of them.

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With the exception of thermocouples, everything needed to operate the USB-2416 is included with your order. You will receive with your USB-2416 a USB cable, a DC Power supply, and our MCC DAQ CD. Which contains all the software that ships with our products. All other accessories are optional.

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Measurement Computing is not an accredited metrology laboratory. However, our calibration equipment is NIST traceable and a calibration certificate is provided with the product.

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Yes, you can run USB-2408 and a USB-2416 on one PC and program them using DASYLab or any of our software options for that matter. Most PCs support multiple Root controllers. If you do not have an available USB port then there are many options on the market for adding additional USB ports to your PC. Please refer to our Knowledge Base article that covers this exact topic of interest. Although the USB-2416 nor the USB-2408 are mentioned in this article. The same information will apply to both the USB-2408 and the USB-2416. http://kb.mccdaq.com/KnowledgebaseArticle50341.aspx?Keywords=USB+Hub

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Hello Steve, Thank you for your question. The USB-2416 does not support DAQFlex. While MCC continues to offer and support DAQflex on certain devices, we have decided to limit its marketing to minimize confusion with UL, ULx and UL for Android.

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1) Unfortunately, the USB-2416 will not be able to resolve down to 20 nanoVolts. 2)The Peak to Peak noise performance for the +-0.078125 volt input range is 2.40 uVolts. 3) The Noise free resolution spec is 17 bits. You can review all of the detailed specification in the User’s manual located here: http://www.mccdaq.com/PDFs/manuals/usb-2416.pdf Please refer to pages 34 and 35 for the information you are looking for.

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Hello Simon - Everything you need to setup the USB-2416 and the AI-EXP32 is included with your purchase (including the software to get you up and running)

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The USB-2416 is not compatible with RTD temperature measurement sensors, it is only compatible with voltage or thermocouple signals. If you require the use of a 3 wire RTD please use our USB-TEMP device (link below) The USB-TEMP is a multi-sensor device that supports thermocouples, RTDs, thermistors and semi-conductor devices. USB-TEMP Page: http://www.mccdaq.com/usb-data-acquisition/USB-TEMP.aspx INDIA Distributor: http://www.mccdaq.com/templates/distributor.aspx?cid=18

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Depends if you want Differential or single ended measurements and maybe on how many channels you need to measure. For example, if unsure about grounding, you can connect your signal between C0L and C0H (or any CnL-CnH) and use differential reading; this way grounding doesn't matter. Make sure to connect a resistor between 2416 GND and your device ground; maybe 100Khm; read manual if you want to know why.

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The USB-2416 is somewhat unique, in that you can select a mix of single-ended and differential channels. This selection is made, channel-pair by channel-pair, from within InstaCal. After configuring the channels, next you should use InstaCal’s analog test … which will display the recommended wiring connection for each channel. It will show you which screw terminal to connect to, and whether or not you need to also connect to a ground (GND) screw terminal.

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Thank you for your inquiry. The USB-2416 is accurate down into the uVolt range. Your absolute accuracy will depend on the selected input range. Based on your input range of 200 uV up to 5 volts, you would have to select the +- 5 volt range. So if we looked at the accuracy for this range you could expect to see on average about 150 uV of error. Please feel free to contact us if you have any additional questions.

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The spec that you reference is the hardware spec. There is no reset command for USB devices in ULx (or in the Universal Library itself) A reset command should not be needed at the application level. Please feel free to contact us if you have any more questions.

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You don’t say what thermocouple type you are using with the USB-2416, but it is likely T-type.The upper limit for T-Type with the USB-2416 hardware is indeed about 750 deg F. (Table 3 in the USB-2416 hardware manual’s specs lists the T-type upper limit as 400 deg C). Each of the 7 other thermocouple types listed are supported to much higher temperatures.

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The software can be used to calibrate the device. The calibration is stored in the device and should only need to be re-calibrated if the ambient temperature changes by more than 10 degrees or your calibration period elapses.

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The calibration would need to be handled in-house at Measurement Computing. Please call us at 1.800.234.4232 to schedule a calibration.

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Hello Wizz - The maximum AI sample rate in your application program (in this case TracerDAQ) will be affected by the “data rate” setting made for each channel in InstaCal. In order to sample at 1000 Hz, all channels being sampled must be set to the 3750 Hz data rate. Lowering the data rate for a channel tells the A/D converter to spend more time on that channel, slowing down the aggregate sample rate that all channels can be sampled. There is a formula in the user manual that describes the tradeoff. Lowering the data rate on a channel improves the accuracy on that channel, and can also help filter noise.

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Mostly figured it out. The sample rate is the 'aggregate' rate (great marketing term). The 1K/sec is only for one channel. The rate ~ halves for every channel added for the smaller daqs. For this daq I'm hoping it's 1000/32~31hz...although I haven't read the fine print so it could be better than this.

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Hi JoshI - The two counter channels can accept a maximum of 1 MHz.

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The alarm feature that is included with TracerDAQ PRO is only a visual alarm. Regrettably, there is no association between the TracerDAQ PRO alarm settings and the USB-2416-4AO’s digital output bits. Our recommendation would be to use our DASYLab Graphical programming language. With DASYLab you could easily build your application and with the use of a comparator or trigger, control the digital output bits based on feedback from your inputs. You may download a FREE 28-day DASYLab evaluation here: http://www.mccdaq.com/products/dasylab.htm Please feel free to contact us if you need any assistance getting your application up and running.

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