Show Categories
55
5
Old Forum posted May 18 '19 at 1:47 pm
I got dataTaker to push files to a FTP server. Now the client wants the data to be display in real time in a software display. Ughhh...

Have you guys seen any real time display software that can intercept data from FTP stream directly? Or read the latest data from the files in a FTP server?

Like to know have this been done before. Usually real time software displays use data from TCP/IP
recent by Old Forum  ·  May 18 '19 at 1:48 pm
18
1
Hi,

We have in excess of 20 of your loggers around our plant all connected to our LAN. My question is, can we setup a daily file (.txt or .csv) to be appended by all the loggers alarms? Far easier to view one log file than connect to each logger.

Thanks,
Steve

recent by Roger  ·  May 18 '19 at 1:45 pm
14
1
Hi guys,

I have a DT80 onsite permanently connected via Ethernet to a laptop running Delogger 5. The laptop is just showing the chart and the trend of a process over a couple of hours.

Whenever I access DT80 via a dial in modem, Ethernet connection drops out, and it needs to be manually reconnected by me which requires a site visit. Is this a normal occurrence or am I missing something
recent by Roger  ·  May 18 '19 at 1:43 pm
80
5
Old Forum posted May 18 '19 at 1:37 pm
I cant connect DT80 through USB using Delogger5, it say

warning : connection refused Find device check failure
warning : datataker not found on connection
I had set what ever it told install driver... select the correct port but it fail, can someone help me pls thanks

*I am using Windows 7 64 bit.

recent by Roger  ·  May 18 '19 at 1:40 pm
40
2
Hi,

We have a number of DT80's in the field, the people that previously setup DT80's are no longer available. Is there a way to automate the collection of the running code (not the data) from the DT80's so I can get the field crews to recover the code?

Thanks,
Lee McLaren

recent by Old Forum  ·  May 18 '19 at 1:18 pm
45
2
Old Forum posted May 18 '19 at 1:14 pm
Hello,

I am trying to take some measurements with some equipment that require a voltage input, and am having some trouble setting this up correctly with DT85 series 2.

According to what I have read, I thought I could do this by using the external input location. I have a regulated 10V source plugged into the External plug. and set up a channel for a load cell and configured with "E" for
recent by Roger  ·  May 18 '19 at 1:15 pm
15
3
I'm currently working on a 4 channels DT80 that is reading too low on the 10 ohm range. Is there a layout of the 4 internal variable resistors available? I'd prefer to not have to do the trial and error method, I haven't found anything in the available manuals.

recent by Roger  ·  May 18 '19 at 1:13 pm
42
1
Old Forum posted May 18 '19 at 1:08 pm
Hi folks.

At the moment I am getting a signal back from my turbine meter into DT80 using a hall effect sensor and the high speed counter but would really like to do it with a magnetic pickup. My pickup outputs around about 50mV.

Is it possible to bring the magnetic pickup into DT80, read it as a frequency and then work out both a total volume and a flow rate? I have gotten both of these
recent by Roger  ·  May 18 '19 at 1:09 pm
56
5
Hello,

I am using a DT80 to sample an ultrasonic anemometer (Gill Instruments WindMasterPro) at 10 Hz, testing using DeLogger v5. I've also tested the serial connection using DeTransfer, after reading this forum - seems to be working fine.

I'm finding that I get a few seconds of measurements received at full rate (10 Hz). Then I get an error signal: 'serial sensor scan error at control
recent by Roger  ·  May 18 '19 at 1:06 pm
19
1
StephenR posted May 18 '19 at 12:54 pm
Hi all,

I have a DT80 inquiry for monitoring PN systems and was wondering is there an examples of this done within the applications notes.

Stephen

recent by Roger  ·  May 18 '19 at 12:55 pm
16
1
Old Forum posted May 17 '19 at 3:16 pm
Hi,

I tried this on script; s1=0,100,0,1"m" where my sensor output should in range 0-1v, but why i got -ve value on "m"? I thought the lowest it can be is 0m. How to only return minimum value is 0?

zuhairy/stagnotech

recent by Roger  ·  May 17 '19 at 3:17 pm
47
3
Old Forum posted May 17 '19 at 3:13 pm
Hi,

I am programming DT85 series 2 dataTaker using DeLogger 5. My purpose is to log the change of state of some 80 inputs.I use CEM20 along with DT85 and use analog state inputs.

I don't need a continuous log, I only need logging when the inputs state changes.I use the alarms on all the channels, assign alarm numbers and set point 1 with conditional test as greater than or equal to set p
recent by Roger  ·  May 17 '19 at 3:14 pm
15
1
Old Forum posted May 17 '19 at 3:10 pm
Hi,

Is it possible to control a pump having a 0-5V control wire using DT80? I would like to regulate the flow rate based upon the temperature of the flow stream. DT80 already monitors said temperature.

Thanks and regards,
Sameet

recent by Roger  ·  May 17 '19 at 3:11 pm
20
2
Old Forum posted May 17 '19 at 3:08 pm
Hi,

I'm trying to use digital channels 5D, 6D, 7D and 8D to monitoring digital status like I usually do with 1D, 2D, 3D, 4D. The channels from 1D to 4D work correctly but the channels from 5D to 8D don't work at all: they return digital status 0 (zero) with open and close circuit.

All the channels have the same command line so I don't understand why they do not work. There something tha
recent by Old Forum  ·  May 17 '19 at 3:09 pm
33
1
Old Forum posted May 17 '19 at 3:07 pm
Hi guys,

We are still on the angular velocity problem. We are toying with the idea of using a rotary phase encoder and counting the pulses. With an encoder that produces 5000 pulses per revolution, it works out at 14.8 pulses per degree of travel. At 30 RPM that is roughly 14.8 pulses in 5 milliseconds.

Are we trying to get to much out of the DT80? We can go to lower encoder pulse rates
recent by Roger  ·  May 17 '19 at 3:07 pm
21
2
Old Forum posted May 17 '19 at 3:03 pm
Hi Guys,

We are trying to log the change of a resistance versus time to calculate an angular velocity. I have managed to obtain a logging rate of approx 50 ms. Is it possible to go lower then this, and if so how?

Cheers,
Geoff

recent by teo  ·  May 17 '19 at 3:05 pm
46
6
Old Forum posted May 17 '19 at 2:54 pm
Hi,

I wish to use the relay outputs A and B to power an external device when a certain condition is met. To test the functioning of the relay, I tried activating the relay by sending a simple 1RELAY=1 command and measuring the resistance between terminals A and B, thinking that the resistance should be close to zero when the relay is activated.

However, this was not the case (the multim
recent by Old Forum  ·  May 17 '19 at 3:03 pm
34
3
Old Forum posted May 17 '19 at 2:49 pm
I am trying to use a dataTaker (DT80) to interrogate a device with a serial comms output (RS232). I am wondering is it possible to use a dataTaker to ask a device for a status check and then save the data from the interrogation?

For example if I wanted to gain the status of a modem via a hyperterminal session, I would use the code AT&V. I would then get the following output:

ACTIVE
recent by Roger  ·  May 17 '19 at 2:53 pm
20
3
Old Forum posted May 17 '19 at 2:44 pm
Dear Sir,

I'm now using DT85 for data logging. I got problem and cannot get reading when I connect Vaisala HMP-50 humidity and temperature probe to DT85.

I used DT85 only since one month ago and I'm quite new. Can anyone help me about this problem? Both physical installation and software programming.

Best regards,
Rio

recent by Roger  ·  May 17 '19 at 2:47 pm
27
3
Old Forum posted May 17 '19 at 2:40 pm
Hi,

I have a DT85 set up that monitors four separate temperatures using 1/8" Diameter Type K thermocouples. The logger is set up a couple of meters away from the thermocouples and I usually leave my laptop connected to the data logger to display a real time graph of the temperatures during experimental runs.

I encountered a problem today involving interference of the thermocouple signal
recent by Roger  ·  May 17 '19 at 2:42 pm
26
1
Old Forum posted May 17 '19 at 2:37 pm
Morning folks.

I am having some trouble with the DT80 and my 4-20mA inputs. I am trying to hook them up across the + & - terminals and am getting nowhere. I have tried using and external 10 Ohm resistor but to no avail.

I am also using the Prog1.DT80 window for my scaling. I have read the manual that came with the logger but it only seems to reference the Text programming option. Ca
recent by Roger  ·  May 17 '19 at 2:38 pm
59
12
Old Forum posted May 17 '19 at 2:22 pm
Hello,

I am currently undergoing a project which aims to carry out load test for different materials so as to measure the amount of force exerted on the material upon impact.

I am using a DT80 datalogger and a load cell and a 2-channel transducer. The load cell I am using has details found here: http://www.pt-global.com/index.php?shop_name=pt&func=14&DPT=p&DPI=236&DCI=89
recent by Old Forum  ·  May 17 '19 at 2:36 pm
29
2
Old Forum posted May 17 '19 at 2:19 pm
Dear Roger,

For your information, I already setup one system via GSM modem using DT80. this system actually communicate via using Ethernet wireless network.

So every minute, i will get real-time data from every site. My question is, if my network down, can DT80 automatically switch to GSM modem? So I can get the data as usual.

If u have any special command to do that, plz tell me..
recent by Old Forum  ·  May 17 '19 at 2:20 pm
16
2
Old Forum posted May 17 '19 at 2:15 pm
Hi,

I have a query to do with my DT80/85 over a wireless network. If for some reason I loose connectivity on my Cisco network, the loggers appear to go to sleep.

When the network connection is re-established I cannot even ping the loggers. If I send a continuous ping, after about 20 minutes, for some reason I can talk to them again.

Can you give me an explanation for this?
Stev
recent by Old Forum  ·  May 17 '19 at 2:16 pm
12
1
Old Forum posted May 17 '19 at 2:14 pm
I have an array of 10 4-20mA current output pressure sensors connected to a DT80. These are connected to a 20V power supply and wired using the external shunt method.

Unfortunately, my power supply is not maintaining a constant potential, and I was wondering is there any manner in which i can monitor this change to reassure myself of the validity of the collected data??..

Ryan

recent by Roger  ·  May 17 '19 at 2:14 pm
27
3
Old Forum posted May 17 '19 at 2:11 pm
I'm trying to calibrate a acceleromter on a DT80, the calibration certificate I have give the following information:

Sensitivity 11.40V/g @80Hz
Bias voltage 5.7 volts
Supply voltage 12V
I currently have it reading on a voltage signal.

Thanks,
Russell May

recent by Roger  ·  May 17 '19 at 2:13 pm
29
1
Old Forum posted May 17 '19 at 2:09 pm
Hi,

I'm getting noise of f~ 125kHz and magnitude ~400mV (I've checked it with an oscilloscope) which, as you can imagine is completely drowning out the ~4mV signals from my type K thermocouples when they are at ambient temp.

I have placed the 5V AC power supply in a separate shielded cable - so I know the noise is coming from an external source. So far the only thing that seems to work
recent by Roger  ·  May 17 '19 at 2:09 pm
34
4
Old Forum posted May 17 '19 at 2:03 pm
Hi Guys,

Is there any easy serial extension for DT80? Need to put in 3 serial ports, SDI12 cannot do for the 3 sensors. Any alternative datataker model that can accept 3 serial input? Not that expensive ones

Advance thanks.
orange

recent by Roger  ·  May 17 '19 at 2:08 pm
11
1
Old Forum posted May 17 '19 at 2:02 pm
If DT80 is to be installed inside an explosion proof box as the system is to be used in a hazardous zone 1 area, do we need to install zener type intrinsically safe barrier like this? http://www.process-controls.com/MTL/mtl_intrinsic_Barriers.html

Have a lot of other users done this? What is the most popular IS barrier brand used for DT80?

Advance thanks.

recent by Roger  ·  May 17 '19 at 2:02 pm
103
10
Hi Roger,

I find that when you load new programs into a DT80/85 as a reset job the logger does not like the changes, even a minor ones.

I keep getting old data errors and invalid profile errors. It's driving me nuts. I keep having to upgrade the firmware. This time even that's not working. Here is the program I'm using and below that is a cut and past of what is coming up in the view er
recent by Roger  ·  May 17 '19 at 2:00 pm
Categories
Actions
Hide topic messages
Enable infinite scrolling
All posts under this topic will be deleted ?
Previous
Next
With selected deselect topics
Pending draft ... Click to resume editing
Discard draft