Technical Support and Questions

Please attempt to thoroughly troubleshoot the problem yourself AND search the forums for solutions before posting!

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Missing Leaf Photosynthesis MultispeQ V1.0 parameters

By Craig Whippo

What happened to all of the Leaf Photosynthesis MultispeQ V1.0 measurements? I no longer see the light absorbance or pmf measurements on a new project.
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10 days ago


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App crashes and losing data

By Susan Moenga

Hi , I collect my data and often upload when I have internet and I'm back in the office. Twice now, on an android device, I have lost data when the app "is not responding" and immediately crashes before I can click on upload all. Is there a way to access this data on some sort of cache or is it completely gone? What can I do to stop this? Thank you, Susan
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24 days ago


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No PAR and LEF value in RIDES or Leaf Photosynthesis MultispeQ 1 protocols

By Habib-ur-Rehman Athar

Hello Since last month, while working with different protocols in different experiments I am unable to get PAR values. What could be the possible reason and how to fix it Is there any problem with light sensor, if so how to check it and fix it. Please look at the data http://photosynq.org/projects/nitrogen-nutrition-photosynthesis-and-grain-yield-in-wheat/explore
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Apr 2018


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Missing a lot of spreadsheet columns?

By David Alm

Greetings, I haven't used instruments since last Spring. I just started using them again, and only basic data are in the spreadsheet (Phi's, chl,..) but these are missing: Proton Motive Force: ECSt, vH+, gH+ Absorbance at: 450, 535, 605, 650, 730, 850, 880, and 940nm. What am I doing wrong? I looked all over the GUI for a widget to include more columns, but couldn't find.... read more
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Feb 2018


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How can we use internal light LED as PAR or ambient light

By Habib-ur-Rehman Athar

From my project photosynthetic variations in canola under salt stress, I can see greater Phi2 values of salt stressed plants than their respective Control plants. Probably, it may be due to difference in PAR. (PAR ranges from 900-1200 uE) Since values were taken in wire-net house, it is very difficult to maintain PAR. Is it possible to normalize Phi2 values as function of P... read more
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Jan 2018


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Actinic light -MultispeQ V2.

By Laura Briers

Hi, I wonder whether you could help. We have just ordered a MultispeQ V2. I wanted to know what the actinic light of the MultispeQ is? or is the actinic light used determined by the ambient PAR? I had read that the PAR light received by the PAR sensor is recreated within the chamber via amber LED's. If the actinic light is determined in a macro, is there anyone to edit thi... read more
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Jan 2018


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Export 2D histograms

By Raquel

Hi! I am trying to export a histogram 2D but when I download the image, the download image appears empty without the 2D histogram. (this not happens with the normal histogram). Thanks Raquel
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Dec 2017


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macro updating project output?

By Jonathan R Pleban

Hi Ive recently updated a macro: v1 NPQ 5 min light acclimation 20 dark recovery JRP This macro is used for protocol: v1 - NPQ 5 minutes light 20 min dark recovery - 800 The protocol is currently used in the NPQ recovery B. rapa drought project. In the past when i've changed macro's the new outputs are available right away; now I am getting no output in project data at a... read more
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Feb 2018


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Upload problem

By Lina Aragón

I am trying to load my data using the mobile application, but as soon as I click on load the entire application is closed. Is there any other way to obtain my data?
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Mar 2018


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Checksum error message

By Shantaya Andrews

During measurement readings using Photosynq device there is a Checksum error that continuous appears on my Samsung TabA model SM-T280. Once this appears, I have to re-take the measurement. Other times, I have closes the program and re-open it. The error message persists in both instances. Does anyone have thoughts on what might be the issue? Thanks.
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Dec 2017


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Upload Problem after Reordering Question

By Dhimas H. Putranto

Hi everyone, I reordered my question a couple days ago but did not upload my previous result that I got with the old questions. When I tried to upload all of my results today, all results with the new question are uploaded, however, the other result with old questions cannot be uploaded. There is a notification that "the server encountered a problem uploading the data".... read more
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Nov 2017


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Co2 measure on beta multispeQ - 5 min or 2 min

By Matthew Daniel

Hi Team i want to collect some co2 measures in a chamber with the old beta multispeq in the next couple of days. I cant seem to make the protocol work. it finished measure after 5 min and goes back to questions. I have tried using a photosynthesis protocol and that works fine. ??
4
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Sep 2017


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How much data can go into a discussion forum?

By Matthew Daniel

https://photosynq.org/forums/tree-health-calculator-1-0/discussions/friends-of-caulfield-park Guys, I am trying to respond in a comment and upload a photo. I keep getting a failure notice and the text pops up without the picture. It does say its loading but takes ages and I refresh with just the text.
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Sep 2017


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Why did I get negative values for leaf thickness?

By Weizhen Liu

I used Leaf Photosynthesis MultispeQ V1.0 protocol to measure different genotypes of corn leaf blades. When exploring data after measurements, I found that majority thickness values were negative. Please see the distribution figure attached. The protocol " Leaf Photosynthesis MultispeQ V1.0" described that it measures Leaf Thickness in mm. I do not know why I obtain negativ... read more
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Sep 2017


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Import button in the desktop app

By Alejandro Morales

Hi, I am trying to import measurements (as json files) into the desktop app. The import button in the Notebook seems to be right place, but when I try to input a json file from a measurement (I got it from the measurements folder inside the Android app) nothing happens. I have checked that the file is valid json and it contains meaningful data. So, what exact does the Imp... read more
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Sep 2017


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How to use already developed protocols by PhotosynQ community?

By Habib-ur-Rehman Athar

I am unable to develop new protocols and macros for calculations. However, I am interested in using different protocols enlisted in PROTOCOL section. How can I import the protocol in my Desktop or Android App to use. Any helping Pdf file, or youtube video? ?? ??? Habib-ur-Rehman Athar Institute of Pure and Applied Biology Bahauddin Zakariya University, Multan 60800, Pakist... read more
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Feb 2018


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Lack of absorbance 420 values

By Wojciech Baba

I have a question about values of absorbance - sometimes Multispeq does not record values of absorbance 420, especially in Dicotyledones (but never in grasses). What causes such behavior ?
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Sep 2017


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Collecting data without internet

By Tsai Lab

Hi, I was wondering how to change the settings on the desktop app so that I can collect data without access to the internet. I am using a USB connection from the laptop to the instrument. I saw in the tutorials there is a way to do so for the mobile app, but can't seem to find it in the desktop app. Thanks, Naomi
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Aug 2017


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Editting leave samples prior to uploading data

By Clarance Malapana

Dear Team Many thanks for the articles you provided on the forum, they really helped alot on understanding what the instrument does. However, I have realised that my data samples are captured as ID numbers on the spreadsheet. Is it possible to edit this from words of my choosing so I will easily identify my data sets. Also,the instrument takes over 15 seconds to record a s... read more
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Jul 2017


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PhotosynQ app quitting on upload of particular datapoint

By Meera L Sethi

Hi there, I'm having trouble uploading a specific measurement—the app quits every time I try to do so. I attempted to submit a debug report, but the app says it is unable to and asks if I am offline (I am not). Is there a way to send a debug report manually? Thanks!
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Aug 2017