Legacy Hardware and Apps

This is for legacy hardware DT800 or older, and old dataTaker applications

Old Forum posted May 2 '19 at 1:16 pm
Hello, there!

Just to make sure you don't delete me from the Forum, here is another little question!!! I have an accelerometer connected to DT800 as a bridge. When displayed on CHART as a graph, the output shows 3 sec Heart Beat spikes (-ve). Is that normal?

Should this accel be connected as a Voltage i/p??? For info - The bridge Sense input is 10 V and looking at the cct of the accel,
recent by Roger  ·  May 2 '19 at 1:19 pm
Old Forum posted May 2 '19 at 1:14 pm
Hello everyone,

I have DT800, the problem is: I connected with thermometers and thermocouples enmallado from an electric generator, q is also connected to the datataker Sr, and the earth electric andalusia Ch.

Both online and offline probe lands but the noise continues, I have many variations of temperature. no is constant, if someone can help me.

Thank you

recent by Roger  ·  May 2 '19 at 1:14 pm
StephenR posted May 2 '19 at 1:09 pm

I have a DT800 connected to an Ethernet network from which i am viewing real time data with the mimic screen. I have to now set up a display room for visitors to view the data from the the mimic on screen.

I have placed a PC in the room with Delogger Pro running which displays the mimics on screen for viewing. What i wish to do is to protect the DT800 program from unauthorized chang
recent by Roger  ·  May 2 '19 at 1:10 pm
I have a DT800 permanent linked to my PC by RS232 cables (COM1). I use DeLOAD to periodically and automatically unload the logged data.

Now I improved the monitoring system and I connected to my PC an independent accelerometer (connected at COM2). I have access to stream data of the accelerometer in a LabVIEW program.

I would like to be able to change the sample rate of the DT (1 Hz to
recent by Old Forum  ·  May 2 '19 at 1:05 pm
Old Forum posted Apr 30 '19 at 1:56 pm

I am a new user and am experiencing difficulty in having the DT800 begin logging data at a specified time. Researching the forum suggested that I use something similar to the following:

The DT800 has no trouble in ending its logging at 15:13:00 however it begins to log as soon as I have se
recent by Old Forum  ·  Apr 30 '19 at 2:00 pm
Old Forum posted Apr 30 '19 at 1:52 pm
Is it possible to use only three external completion resistors for all the twelve analog channels in order to connect quarter-bridge strain gages?


recent by Roger  ·  Apr 30 '19 at 1:55 pm
Good afternoon!

I would like to read a voltage from a LVDT with DT800 but I am afraid I am not using the correct channel type. I am using voltage channel type.

Could you please explain me the difference between the V and VNC channel type stated on page 63 of the user's manual? What is the meaning of the "with zero correction" statement on the first line of the table?

Best regards,
recent by Roger  ·  Apr 30 '19 at 1:47 pm
Old Forum posted Apr 30 '19 at 1:43 pm
I have successfully been using the DT800 to log & download Pressure data from 4 channels for the last 12 months until today?!

The data won't let me connect to my laptop via the USB cable. The error is "Auto baud detection rate not found", of course one is then automatically disconnected. I have tried forcing the connection, and then also resetting the properties on the connection setting
recent by Roger  ·  Apr 30 '19 at 1:44 pm
Old Forum posted Apr 30 '19 at 1:41 pm
I am using a DT800 in the 4-Wire BGV Input mode (Five Half-Bridges on a Channel Pair). Cable length = 24 metres, 3 core screened. I am using high quality 350 ohm resistors for bridge completion at the DT800.

Screen not connected to anything at the strain gauge sensors, but connected to Gu at DT800. P46=10. Operating in 50 Hz environment. Noise typical = 25 ppm or more. Sampling frequency abo
recent by Roger  ·  Apr 30 '19 at 1:41 pm
Old Forum posted Apr 30 '19 at 1:39 pm
We have a memory card that had been working 2 days ago, and now it is not. When you plug it in, the DT800 says Success: Card Insertion.

Then, when you do anything to engage the card it says Attention: No card inserted (in blue).

Luther Richardson

recent by Roger  ·  Apr 30 '19 at 1:40 pm
Old Forum posted Apr 30 '19 at 1:37 pm

We are using DT800 for 2 months. While trying to get RPM data from laser tachometer of PCB (which generates 1Vpp difference on voltage), I think we have damaged the Digital channel 1.

We have supplied the power 24VDC-20mA to tachometer using external power supply and connected the + and - cables of tachometer to D1(+) and Gd(-). We have applied same connection several times using an
recent by Roger  ·  Apr 30 '19 at 1:38 pm
Old Forum posted Apr 30 '19 at 1:30 pm
Hi there,

I want to access the DT800 wireless with the radio 905U-D and unload data. Therefore, I connected the Ethernet port of the DT800 to the radio and the other radio with Ethernet cable to my PC.

Then I use DeLoad to unload data. Unfortunately DT800 starts unloading data regardless of the state of the radio connection. So when I lost connection temporarily, I lost my data.

recent by Old Forum  ·  Apr 30 '19 at 1:34 pm
Old Forum posted Apr 30 '19 at 1:25 pm

I have a problem with a startup program. I load a program with DeLogger over RS232 onto the dataTaker. The last line in the program after the job is RUNJOBONRESET"PK13".

So once I disconnect the power from the datataker and reconnect, it should continue taking data. This works fine only if I delete some comments. If I don't, the program still runs when I upload it, but not on startu
recent by Roger  ·  Apr 30 '19 at 1:27 pm
Old Forum posted Apr 30 '19 at 1:20 pm

I have a problem with my DT800. The logging became suddenly very slow, and even a reset to the factory settings didn't help. The problem is not writing to CF-Card or sending data to the Computer where I watch the samples in DeLogger.

It is the acquiring of data (light is showing busy most of the time). I also tried to reload the firmware, but also no change. I'm far away of the samp
recent by Old Forum  ·  Apr 30 '19 at 1:23 pm

Every time I need to change the program it needs to be tested on a real dataTaker, preferably with all the equipment connected.

Wouldn't it be nice and time saving(!) if you could simulate a dataTaker by a software package wherein analog inputs can be controlled by voltages, digital outputs are visualized by LEDs, digital inputs and counters can be controlled by switches.

recent by Old Forum  ·  Apr 30 '19 at 1:17 pm
Old Forum posted Apr 30 '19 at 1:13 pm
Hi guys,

We have used a DT80 to collect data sent by serial sensor, it works at 10 Hz at least. There is no problem when collect the data and save it in its internal memory.

The problem is when we set another schedule to copy all data from its internal memory to a USB disk which is connected all the time, the logger cannot keep up the the sensor's output and some data lost for some peri
recent by Old Forum  ·  Apr 30 '19 at 1:15 pm
Old Forum posted Apr 30 '19 at 1:06 pm
Good day Roger,

The DT800 and other DT800's refuses to make a folder <B> in its internal memory and on the flash card. The folders of all other schedules were made though. If I load another program into memory, there is no problem, but I cannot find the problem. Can you help?

Kind regards,

recent by Old Forum  ·  Apr 30 '19 at 1:10 pm
Old Forum posted Apr 30 '19 at 1:02 pm

Help!! Please tell me, how can I measure pressure with DT800. We have the sensor model 3277: http://www.tecsis.de/filestore.aspx/de700.pdf?pool=website&type=file&id=833ae8a0-7d35-45c8-899b-11641fc94082&lang=en&filetype=default

With best greets,

recent by Old Forum  ·  Apr 30 '19 at 1:04 pm
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