Hi,

I have a WXT520 connected to digital channel 7 as an SDI 12 sensor on a DT85. Polling the unit is fine and i get results, but i do not seem to be able to achieve any response even to the most basic commands using SDI12SEND.

Is there a specific parameter or setting that needs attention to allow this? I have tried: 1RELAY=1 // powers the WXT520 SDI12SEND 7 "0I!" Results in nothing I h

We are in the process of upgrading to the DT85G from the 515/615 GeoLoggers to read VW gages. One nice feature of the older loggers was that an error reading resulted in a value of 99999.9 every time.

It made spotting a bad gage or loose wire easy in a large block of data (we typically monitor 12 ~ 30 gages at a time). DT85G returns random but often reasonable-looking numbers when in fact th

We have a DT85 reading temperatures from a Furnace, this has been working fine but a couple of days ago started to record negative readings when idle (i.e. not testing) and during tests.

The good old Hard Reset with a paperclip solved it for a few hours, but then it happened again. Has anyone any idea what could be happening?

The first area I would like some help with is for rainfall with my tipping bucket rain gauge. I would like to have a single schedule where I can record the following:

a date/time stamp with each tip of the bucket
record the total rainfall over a given period of time
Can already do this via code from FAQ page - General Weather Station?
For testing purposes, I will go for a summary every 2 mi

Hi All,

I see this latest firmware (8.06) has a fix for improved logging speed. Can someone give me specifics on this improvement. I don't see anything in known issues.

Thanks
wsmith

Good morning!

I use DT80 + CEM20. I want to measure a temperature with a thermocouple type T linked in CEM20. I have the following error: 8e9. What I'm suppose to do to cancel this error ?

Best regard,
Junior

From this forum, I got a tip on using Cybertec 1000 as the GPRS modem to FTP data from DT80. Until now I am very happy with the issue free interfacing.

Now I am looking for a satellite modem to interface with DT80. Anybody interfaced DT80 with satellite modem before? What satellite modem you used?

Advance thanks.

Hi,

I'm using a DT85 for reading HIC stress cells containing 12 strain gauges. Gauges can be temperature compensated afterwards with a separate RTD instead of a dummy gauge.

Two common grounds are available too, thus making three-wire quarter-bridge reading method possible. I'm wondering using just a one single precision bridge completion resistor to read all gauge channels.

Should

Hello!

I have several DT85 loggers installed to working on batteries. They are equipped with SMSX modem and it is powered by the relay. Somehow the logger do not go to sleep mode every now and then, and it runs the battery flat.

I think that the problem is related to the modem that is scheduled to be on ones a week for two hours. However, I am not sure. Problem does not occur all the ti

Hi All,

We have dataTakers DT615 and DT80G. We are trying to connect 1000 ton load cell with these dataTakers. For that we used Bridge channel type with config 15 and span also (like mentioned in manual and video tutorial).

But the readings are not reliable. readings are changing. Not stable. If anyone knew to solve this problem. Please reply to me.

Thank you
Amalan

Hi,

We have DT80G datataker. We are trying to measure the temperature of the concrete using thermocouple. We able to get temperature reading which thermocouples directly connect with DT80G datataker but which are connect in CEM20 giving error reading (eg: 8e9).

We read user manual, under CEM20 reference temperature, Ask to type nREFT. We don't know where to type. There is no detail abou

Hi,

I'm running my DT80 off an external supply from a vehicle, which is on or off when the vehicle has started or stopped respectively. The power supply is also connected to digital channel 8.

I'm logging schedule A at 1 second intervals while digital input 8 is high. I want DT80 to stop logging (which I have achieved) and go to sleep once the external power source stops (which I've man

Hi,

I have an application where I need to "sniff", and log all MODBUS traffic on RS485 2-wire. The application that DT80 will be used will have one MODBUS Master, and 4 MODBUS Slave Devices.

DT80 will ONLY monitor the link and log the data. The link runs at 9600 baud. The MODBUS Master only will request one register at a time from each slave device. I have tried various different ways o

Hello,

I have the following questions that I have not been able to find answers to in the manual, FAQ, or forum:

When unloading from a DT80(series 2) to an existing file, is the file overwritten or appended?
If appended, is only new data since the last unload added or can the file end up with duplicate records?
Thanks for your help,
Jason

My dataTaker unit battery cannot fully charge. Every time I charge it to 100% and a arrow and NC will come out once I remove the direct power supply, the battery drop to 44% and keep dropping.

I used it to connect to 8 thermocouple wires and the data take every 10s. The battery can last for 2 hour and 15 mins approximately. Yet, sometimes it just last 1 hours. Some might explain to me? How c

I have problems with thermocouples type T on CEM20. The readings are erroneous and might change between -6.0 to 26.8 C between two scans (RA1M) even though that soil temperature is a stable substrate.

I have both tried single ended and differential connection, but neither of them works. I have checked/logged the 1REFT and it is stable. If I use an immediate scan, it seems that the measuremen

I would like to log the wind data of an ultrasonic wind sensor type Young 81000, using a DT80 series 2 (most recent firmware installed). The wind sensor has been programmed as follows:

it waits for the poll string "MA!"
it responds with the following string: " 0.52 2.7 -4.4 16.87 0" meaning: windspeed, azimuth, elevation, temperature, error code format: real[m/s], real[deg], real[m], real[d

Please advise before I burn the logger, is it possible to measure the voltage from a solar module using a DT80 directly without putting attenuator?

I'm looking at a voltage of 20-25 V from a module. The manual says one can measure up to 30V. I want to be sure. Please advise.

bm

Good morning,

I have a problem with a DT80. I have a potentiometer and I want to measure the voltage drop across it. I have a external source with 9V connect to potentiometer.

I take the measurement between the positive terminal of the source and the central terminal of potentiometer. I would have to obtain a measure of 4,5V but the measure that I obtain in the datataker is 2V approxima

Hi,

We use a DT85 logger at various locations on a regular basis for logging temperature in retorts. The logger works fine, except in some location where power surges in the factory occured, we find a spike appears in our logged data.

The logger power supply is protected by a power surge protector. Is is possible that this is coming from the earth connection? Is there some way of stoppi