ISE Frequently Asked Questions - Data Loggers:MMS3000 Data Logger
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1 How can I measure DC current with the MMS3000 T6V4?

It is possible to measure current with the T6V4 by placing a shunt resistor in the current path, and measuring the voltage over the resistor. For example see the diagram below: Note this technique can only be applied to DC currents, not AC mains currents!…

2 How do I display recorded data on a graph using the MMS3000 Data Logger?

You can easily display your data using the Graph Display mode in the MMS3000. This can be done before or during a recording as well as in PlayBack mode. To change to Graph mode select MENU >> Display >> Graph. Once in Graph mode you can use the…

3 I cannot turn on my MMS3000 data logger. Buttons do not respond. The battery is not dead.

The logger may need to be reset. Try the following. Reset the instrument, Press & Hold the On/Off Key then Press and Release the 1/Reset Key then Release the On/Off Key.

4 Making Extended Recordings with the MMS3000 without Charger. How do I make long recordings with my MMS datalogger, given that the battery life is limited to around 13 hours.

The MMS3000 T4, T6V4, GP4 and GP8 dataloggers have a triggger mode called "Timer Based Trigger" which can be used to take very long recordings by making the instrument power down between samples. But note that this feature is only available in firmware (proflash)…

5 MMS3000 misses scheduled wake up times. Timer Trigger Powerdown: Avoid powerdowns of less than 10 seconds.

When the instrument is set to: Wake up every 5 seconds Take a sample Go to sleep for a few seconds Wake up ... take more samples .. go to sleep etc We have found some units will miss the scheduled wake up time, instead they wake up 24 hours later. This only…

6 MMS3000 will not Communicate with MAS Software. I can't get my MMS or VB to communicate with its MAS software. What should I try?

Ensure that the MMS or VB battery has at least 30% charge. Ensure that your PC has at least one free COM port. For example, if your PC has two, but one is used for the mouse and the other is used internally to drive a modem, then you have none free! You should…

7 My battery seems to charge for a very long time and/or becomes hot during charging. How can I prevent this, and make the most of my battery life?

MMS3000 battery packs contain high capacity NiCad batteries which have a very long life of at least 1000 charge/discharge cycles. However they must be maintained properly to retain their performance. This includes periodic discharging to reduce the NiCad's…

8 My MMS3000 will not turn on or respond to the reset procedure in the manual. What should I do next?

This is caused by both the external NiCad battery and the internal back-up battery both being completely flat. SOLUTION Provided the internal battery has not been fatally drained, the following procedure should revive the unit. These steps must be completed…

9 Since the MMS3000 series of data loggers are now obsolete, what is the recommended replacement?

Our DaqPRO data logger is a great replacement for the MMS3000 loggers. It combines all the features of the MMS3000-T6V4, -T4, -GP4 and RTD6 loggers. These loggers feature up to (8) isolated universal inputs. Each channel is independently configurable as to…

10 When I turn on my MMS3000 Datalogger it says MEM ERROR [XXXXX] at the bottom of the screen, and won't take new recordings, nor download the existing ones to MAS. What has happened and what should

This error indicates that the internal memory in the MMS/Profiler instrument has been corrupted somehow. There are a few ways that this can happen, such as the battery going dead during a recording, or possibly an ESD spike transferred through the sensor…

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