# Data Logger, USB Temperature, Resistance, 4 Channel, Temperature, Ethernet, USB
**URL**: https://novapart.co/products/USB%20PT-104%20LOGGER/data-logger-usb-temperature-resistance-4-channel
**SKU**: USB PT-104 LOGGER
**Manufacturer**: PICO TECHNOLOGY
**Price**: €569.2800
**Stock**: 25+
**Lead Time**: 36 days (indicative)
## Description
Data Logger Type:USB Temperature, Resistance & Voltage; No. of Channels:4Channels; Reading Capacity:-; Product Range:-; SVHC:No SVHC (15-Jan-2019); Accessory Type:Data Logger; For Use With:
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Data Logger Type | USB Temperature, Resistance |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1830984/)
®
PT-104 Data Logger High-accuracy platinum resistance data logger
## **The ultimate in resolution and accuracy**
0.001 °C
0.015 °C
Measures and records up to 4 platinum resistance thermometers Also measures resistance Free PicoLog Cloud[®] and PicoSDK[® ] software USB interface ensures easy installation Ethernet interface for remote operation Powered by USB port or Power-over-Ethernet (PoE) Multiple units can be run on a single PC
www.picotech.com
## **PT-104 PRT Data Logger**
Flexible: measures temperatures with either PT100 or PT1000 sensors, as well as resistance.
Adaptable: can measure and record temperatures ranging from –200 to +800 °C.
Stable: Instead of voltage references, which tend to drift with temperature, the PT-104 uses high-precision reference resistors for improved stability.
Expandable: Use up to 20 units simultaneously on one PC.
## **The ultimate in portability**
With both USB and Ethernet interfaces the PT-104 can be used in a variety of situations. If you need a portable solution that can be used at various locations and is fast to set up and use, simply connect your laptop to the PT-104 by USB. Need to monitor a situation over a period of hours or days, or from a remote location? Plug your PT-104 into a spare port on your network and then access it remotely either from your LAN or over the internet. Using Power PT-104 - CT264/118 x over Ethernet (PoE) technology means that you don’t even need a separate power supply. Driver version 2.0.0.296 Calibration date 26 July 2018 Ethernet connectivity is only supported in Hardware version 1 PicoLog under Windows operating systems.
**==> picture [275 x 71] intentionally omitted <==**
**----- Start of picture text -----**
A B
Fy >.
Mini-DIN
C D E sockets (4)
**----- End of picture text -----**
Rear panel connections and indicators
## Front panel connections
4 x mini-DIN sockets for the connection of compatible platinum resistance thermometers or the optional screw terminal adaptor.
A: Ethernet port
B: USB port
C: Ethernet Data indicator
- D: Ethernet Link indicator
- E: Power/Status indicator
## Temperature
The PT-104 measures temperature using platinum resistance thermometers (PRTs). Both common industry standards (PT100 and PT1000) are supported. The unit is compatible with two, three and four-wire sensors (four-wire PT100 sensors are recommended for best accuracy). A wide range of PT100 sensors are available for use with your PT-104.
## Resistance
## Accuracy and resolution
Although accurate temperature sensors are widely available, it has been difficult to take advantage of them due to errors caused by the measuring device. The PT-104 however, is inherently accurate due to its innovative design. Rather than relying on voltage references (which tend to be temperature sensitive) it uses ‘reference’ resistors which are extremely stable (low temperature coefficient and drift). The exact value of each resistor is stored in an EEPROM to provide the ultimate in accuracy (yearly recalibration is recommended). A high-performance 24-bit ADC is used to achieve the 0.001 °C resolution.
When measuring resistance, the PT-104 uses a four-wire circuit to give the greatest possible accuracy. Two resistance ranges are available (0 to 375 Ω and 0 to 10 kΩ). The unit is calibrated for 0 to 375 Ω so this range should be used for best accuracy.
PT-104 Platinum Resistance Data Logger
## **PicoLog Cloud software – straightforward from the start**
PicoLog is a complete data acquisition software package for the PT-104 data logger, and is compatible with Windows, macOS, Linux and Raspberry Pi OS. With its clear and userfriendly layout, ideal for use with a mouse or a touchscreen, PicoLog allows you to set up the logger and start recording with just a few clicks of the mouse, whatever your level of data logging experience. Set up simple or advanced acquisitions quickly, and record, view and analyze your data with ease.
**Device settings, Graph Capture controls Save and Export options and Table** Separate Record, Pause Copy your graph to the clipboard, save it as Easily set up and and Reset buttons a PDF, export the raw data to a CSV file, or adjust acquisition and make it harder to press save the data and configuration as a robust math channels on one any of them by mistake. .picolog database file. or more data loggers and check their status at a glance. You can Picolog 6 r v also select **Graph** view to see live data trend * | |B len lines and **Table** view to see data in tabular is form in real-time.
**Cloud captures** Share your data for remote viewing. **Graph view** Display your data in real time, as it is collected, on up to four independent Y axes simultaneously: set them up by dragging and dropping the entries in the **Channels & Axes** panel on the right.
## **Alarms**
**Alarms Notes & annotations** Set up alarms to alert you to a range Add notes about the dataset of events. Alarms can take the as a whole or annotations form of sounds, visual notifications, about particular points on graph annotations and more. the graph.
**Pullout information panel** Manage your channel and axis settings, alarms, notes and capture information in this easy-to-read layout. Close the panel to make more room for the capture graph, and reopen it at any time.
## **Multiple devices**
Log data on up to 20 devices at the same time. Here, two separate data loggers are in use: a PT-104 platinum resistance thermometer logger and a TC‑08 temperature data logger.
## **Give instant feedback**
We want to hear from you! Click here to contact Pico with your comments.
**Data view** Display all the data collected so far or keep the graph scale the same and pan along as new samples appear.
**Pan and zoom controls Cursors and annotations** Zoom in, zoom out, zoom to a Use cursors to highlight the data selection or pan through the value and time at any point on the data with these tools. If you graph, or click Add annotation to make a mistake, just click Undo. mark that point with a text note.
PT-104 Platinum Resistance Data Logger
## Introducing PicoLog Cloud
Building on the proven design of PicoLog 6, PicoLog Cloud is a free upgrade that introduces many great features that expand the how your Pico data logger can be used. Both existing and new customers will benefit from the following new additions:
- Live captures streamed directly to the new PicoLog Cloud
In everyday terms, this means you log in with your email and password from one of the following email account providers; Microsoft, Apple or Google. If you don’t have an account with one of those, you can create an anonymized account with another email address. To add an extra layer of security, make sure to use an email account that offers 2FA (two factor authentication) so you can be sure it’s as secure as it can be.
- Secure and reliable storage
- Viewing of live and saved captures from a remote computer running PicoLog Cloud, anywhere in the world
- Viewing of live and saved captures on any device (smart phone, tablet, PC) using an internet browser
- Free PicoLog Cloud account
- Compatibility with all current USB PicoLog loggers and PicoScope real‑time oscilloscopes
- Straightforward setup with no network settings changes
- Continuous capture with or without network connection
- Source clients for Windows, Linux, macOS and Raspberry Pi OS
## Stream live captures directly to the new PicoLog Cloud
In this update to PicoLog data logging software, your Pico data logger or oscilloscope not only captures to a local disk, but can now stream the capture directly to a secure online Cloud store. Did we mention our new cloud service is completely free for all new and existing customers?
PicoLog Cloud storage is hosted on another industry de facto service known for excellent reliability and global access; Microsoft Azure. It means you can rely on quality of service (uptime) and multiple server locations means your data is backed up in the unlikely case of a server outage.
## View live and saved captures anywhere in the world
Plugged into your PC or laptop, USB instruments have been harnessing the power of your computer’s screen, processor, hard disk, keyboard and mouse for over three decades. What if you can’t be in the same room, factory, city or even country as your data-capturing equipment?
Now, PicoLog Cloud opens a window into your loggers and data, allowing other PCs to view and export your data from anywhere in the world. Of course, those PCs must be signed into your secure, personal PicoLog Cloud account to view any of your captures, live or saved.
To keep things simple and avoid making unwanted changes to a live capture, only the host PicoLog Cloud app can change the capture settings.
This new major feature stays true to our vision of creating a data logging application with a simple user interface, and is equally straightforward for use by technical or non‑technical users.
PicoLog Cloud is fundamentally the same application as before, but with enhancements to send the live capture data directly to your remote PicoLog Cloud space, and in addition view saved captures stored in the Cloud.
## Secure and reliable cloud captures
Security is at the top of the priority list with PicoLog Cloud, and we use the latest and greatest security techniques and processes to ensure your online data and credentials stay safe. To achieve this, PicoLog Cloud employs an Identity Management Platform to manage the login authentication process, keeping your identity anonymized and your data captures safely yours.
PT-104 Platinum Resistance Data Logger
## Can I view captures on my smartphone or tablet?
PicoLog 6 has always been based on a framework that uses Chromium (Google’s open-source browser) and Java, meaning it is already “browser ready”.
It couldn’t be easier to use! Navigate to the URL picolog.app in any browser and log‑in to your PicoLog Cloud account. This gives you instant and secure access to all of your live and saved Cloud captures on any smart device, anywhere in the world (you must be connected to the internet). Some browsers such as Google Chrome and Microsoft Edge make it possible to “install” the PicoLog Cloud as a PWA (progressive web app) meaning the app will be available on the home screen of your phone or desktop on your computer, and works like a regular mobile app.
## Stream live Cloud capture data to your application with an API
Transferring capture data from a data logger software application to a 3rd party application while the capture is running has been one of the longest outstanding customer feature requests, and had been very difficult to implement up until this point. Now that PicoLog Cloud data resides on a server, we’ve developed a simple server-side API that allows programmers to request the live data in batches which is returned in a human and database readable ASCII format. @ hutps/apipicologapp/vi/chany X
This feature is particularly useful to users who want to add extra functionality such as emailing alarms or captures, adding logger data to existing databases, displaying data in a different way such as fill tanks, percentage bars, throttle gauge, large numerical displays and much more!
Once the Cloud capture is set up and acquiring data, public sharing for that capture must be enabled, and this will generate a unique unsearchable URL containing a unique GUID for that capture on the picolog.app server. The API contains just 2 calls:
1. Basic set up, channel IDs, last recorded value and channel names.
2. Request a block of capture data with start and end time parameters for the specified channel(s)
The API is server-side and sends raw data to your custom application or database, so no special software needs to be installed. Almost all relevant programming languages can call the API URL, and simple code examples are available.
## Continuous capture, with or without network connection
Should your host PC lose network connection during a capture, PicoLog Cloud instantly switches to use the PC’s own hard drive until the network connection is restored. Any missing data is promptly synchronized back to the Cloud.
As always, PicoLog 6 in local capture mode is compatible with all current PicoLog data loggers and PicoScope real-time oscilloscopes (with a sample rate limit of 1 kS/s).
PicoLog Cloud is compatible with the same instruments, except that the sample rate is limited to 1 S/s per channel.
Although PicoLog Cloud is limited to 30 day captures in Cloud capture mode before it overwrites the oldest data, you can use this API to transfer and backup your data to a local or online database of your own.
## PicoLog Cloud capture specifications
- No limit to the number of stored captures
- Sample rate limited to 1 S/s per channel in cloud mode
- Sample rate max 1 kS/s in local capture mode
- Maximum capture duration is 30 days
- Capture can be set to continuous overwrite or stop when finished set duration
- Multiple host PicoLog Cloud captures can be used simultaneously on one user account
- View all your devices and captures from one place
- Remote clients can export into CSV, PDF and HDF5 files from live and saved captures
PT-104 Platinum Resistance Data Logger
## Math channels
Sometimes you need to use data from one or more measurement channels to graph and record a calculated parameter. You can use the PicoLog equation editor to set up simple math channels such as A–B or more complex functions such as log, sqrt, abs, round, min, max, mean and median.
PicoLog treats math channels like any other channel, so you can still set alarms and annotate them.
## Alarms
In PicoLog, you can set up alarms to alert you to various events. These can be as simple or as complex as you like: alarms can trigger on a signal threshold or disconnection of the data logger, or you can set up a logic expression of your own. Alarms can play sounds, display visual alerts, run applications or mark when the event occurred on the graph.
## Intuitive logger and channel setup
The Devices view lets you set up a multichannel acquisition system in a simple way, with the option to use multiple different Pico data loggers simultaneously. PicoLog shows you an image of each connected device, so you can quickly and easily enable or disable channels and set up their properties.
On the right, you can see the device setup including two data loggers, a PT‑104 and TC‑08.
## Robust file format
At the heart of PicoLog is the file system, which stores live capture data directly to a robust database, rather than to a single file that is vulnerable to corruption and data loss. If the computer is shut down and rebooted, PicoLog will only lose the data during the outage – saving resumes when you restart the software.
This file system also means that the size of the dataset you can capture is virtually unlimited – the only restriction is the size of your computer’s hard disk!
The .picolog file format is compatible across all operating systems, and there is no need to set up a file to save to before the capture is complete. You can also save mid‑ capture if you wish to share the data collected so far. Since anyone can download and install PicoLog for free, you can easily share saved data with co-workers, customers and suppliers for offline post‑analysis.
## **PicoSDK[®]**
Pico’s software development kit, PicoSDK, is available free of charge and allows you to write your own software and interface to third-party software packages.
Pico also maintains repositories of example code on GitHub (github.com/picotech), showing how to use PicoSDK with software packages such as Microsoft Excel, National Instruments LabVIEW and MathWorks MATLAB, or with programming languages including C, C++, C# and Visual Basic .NET.
PicoSDK and the _PT-104 Programmer’s Guide_ are available to download from www.picotech.com/downloads.
## Try the PicoLog software today!
PicoLog’s built-in demo mode allows you to try out the full functionality of the software with a choice of virtual devices and simulated live data. You also can use PicoLog to view previously saved data, even with no device connected. Visit www.picotech.com/downloads and select **PicoLog Data Loggers** to get your copy.
PT-104 Platinum Resistance Data Logger
## **Specifications**
|**Input/output**|**Input/output**|**Input/output**|
|---|---|---|
|Type|Temperature|Resistance|
|Sensor|PT100,PT1000|n/a|
|Range|−200 to +800 °C|0 to 375 Ω;0 to 10 kΩ|
|Accuracy (unit at 23 ±2 °C)|0.015 °C + 0.01% of reading|50ppm at 100 Ω|
|Temperature coefficient|5ppm/°C|5ppm/°C|
|RMS noise with filter|0.01 °C|10ppm|
|Resolution|0.001 °C|1µΩ|
|Overloadprotection|±30 V||
|Number of inputs|4||
|Converter resolution|24 bits||
|Conversion time|720 msper channel||
|Input connectors|4-pin mini-DIN||
|**Environmental**|||
|Operating environment
Temperature range
Humidityrange|0 to 70 °C (20 to 30 °C for quoted accuracy)
20 to 90 %RH,non‑condensing||
|Storage environment
Temperature range
Humidity|−20 to +80 °C
5 to 95 %RH,non–condensing||
|Physicalproperties|||
|Dimensions|184 x 135 x 36 mm(approx 5.31 x 7.24 x 1.42 in)||
|Weight|350g (approx 12.3 oz)||
|General|||
|Software|PicoLog Cloud, PicoSDK (available fromwww.picotech.com/downloads)
Example code(available from Pico’s GitHub organizationpage,github.com/picotech)||
|PicoLoguser interface languages|English,French,Italian,German,Spanish,Chinese,Japanese,Korean,Russian||
|PC requirements (PicoLog Cloud app)|Windows, macOS, Linux or Raspberry Pi OS. For supported OS versions, see PicoLog 6 Release Notes.
Hardware as required bythe operatingsystem.||
|PC requirements(viewer)|Anydevice with internet access,a web browser and a screen||
|Additional hardware(supplied)|USB 2.0 cable,Ethernet cable,user manuals||
|PC interface|USB 2.0 full speed(USB 1.1 and 3.1 compatible)and Ethernet(with PicoLog6 for Windows only)||
|Power requirements|Powered from USBport orpower over Ethernet compatibleport||
|Compliance|Harmonized EMC and LVD standards;FCC Rules Part 15 Class A;RoHS compliant||
|Warranty|5years||
PT-104 Platinum Resistance Data Logger
## **Compatible platinum resistance thermometers**
Pico Technology offers a range of platinum resistance thermometers (PRTs) for use with the PT-104. The PT-104 is compatible with all standard PT100 and PT1000 PRTs, which offer high accuracy, resolution and stability.
|**Order code**|**Model**|**Temperature**|**Accuracy**|**Cable length**|**Material**|
|---|---|---|---|---|---|
|SE017|PT100 air probe|−75 to +250 °C|±0.15 °C @ 0 °C Class A|1 m|Stainless steel probe, PVC cable|
|SE018|PT100 air probe|−60 to +500 °C|±0.3 °C @ 0 °C Class B|1 m|Stainless steel probe, PVC cable|
|SE012|PT100 probe 1/10 DIN
accuracy|−50 to +250 °C|±0.03 °C @ 0 °C 1/10-DIN|2 m|Stainless steel probe, PTFE cable|
|SE011|PT100 general purpose
probe|−30 to +350 °C|±0.15 °C @ 0 °C Class A|2 m|Stainless steel probe, PVC cable|
|SE016|PT100 heavyduty probe|−60 to +500 °C|±0.3 °C@0 °C Class B|1 m|Stainless steelprobe,PVC cable|
|SE041|PT100 high-temperature
stainless steel braided
cableprobe|−60 to +500 °C|±0.3 °C @ 0 °C Class B|2 m|Wire-wound sensor, four-core nickel conductors insulated in
high‑temperature fiberglass with stainless steel overbraid|
|SE014|PT100 immersion probe|−75 to +250 °C|±0.15 °C @ 0 °C Class A|1 m|Stainless steel probe, PVC cable|
|SE015|PT100 insertion probe|−75 to +250 °C|±0.15 °C @ 0 °C Class A|1 m|Stainless steel probe, PVC cable|
|SE019|PT100 low cost probe|−75 to +260 °C|±0.15 °C @ 0 °C Class A|1 m|Stainless steel probe, PVC cable|
For full information on PRT specifications, characteristics and prices, go to : www.picotech.com
## **Also measures resistance**
The optional PT-104 screw terminal adaptor (order code PP660) plugs into one channel on the data logger and has a set of four screw terminals, allowing you to connect wire‑ended PRT sensors and custom circuits with resistance outputs to the data logger without any need for soldering. The four screw terminals allow for wire sizes of 2.5 mm[2] solid, 1.5 mm[2] stranded and 14-22 AWG.
PT-104 Platinum Resistance Data Logger
**Ordering information**
## ~~CO~~ **Order code Product name Description** PP682 PT-104 Platinum Resistance Data Logger Four-channel temperature and resistance measuring data logger
Optional accessories
|**Order code **
~~bee~~|**Product name**
~~bee~~|**Description**
~~bee~~|
|---|---|---|
|PP660
~~bee~~|Screw terminal adaptor for PT-104
~~bee~~|Connection accessoryfor PT-104
~~bee~~|
|MI106
~~bee~~|USB 2.0 cable,1.8 m*
~~bee~~|Replacement Pico blue USB 2.0 cable,1.8 m
~~bee~~|
|TA268|USB 2.0 cable,0.5 m*|Pico blue USB 2.0 cable,0.5 m|
|CC006|Calibration certificate for RTD loggers|Calibration service offered by Pico on its resistance temperature
detector data loggers.|
- Pico blue USB cables are designed and built specifically for use with Pico Technology oscilloscopes and data loggers in order to minimize voltage drop and noise. Take care to use your PT-104 data logger with Pico blue USB cables only.
UK global headquarters: North America regional office: Pico Technology Pico Technology James House 320 N Glenwood Blvd Colmworth Business Park Tyler St. Neots TX 75702 Cambridgeshire United States PE19 8YP United Kingdom +44 (0) 1480 396 395 +1 800 591 2796 sales@picotech.com sales@picotech.com
Asia-Pacific regional office: Pico Technology Room 2252, 22/F, Centro 568 Hengfeng Road Zhabei District Shanghai 200070 PR China
+86 21 2226‑5152 pico.asia‑pacific@picotech.com
Germany regional office and EU Authorized Representative: Pico Technology GmbH Im Rehwinkel 6 30827 Garbsen Germany +49 (0) 5131 907 62 90 info.de@picotech.com
Errors and omissions excepted. _Pico Technology_ , _PicoLog Cloud_ and _PicoSDK_ are internationally registered trademarks of Pico Technology Ltd.
_LabVIEW_ is a trademark of National Instruments Corporation. _Linux_ is the registered trademark of Linus Torvalds, registered in the U.S. and other countries. _macOS_ is a trademark of Apple Inc., registered in the U.S. and other countries. _MATLAB_ is a registered trademark of The MathWorks, Inc. _Raspberry Pi_ is a trademark of the Raspberry Pi Foundation, _GitHub_ is a trademark of GitHub, Inc. _Google Chrome_ and _Chromium_ are trademarks of Google LLC, _Java_ is a trademark of the Oracle Corporation, _Windows_ , _Excel and Visual Basic_ are registered trademarks of Microsoft Corporation in the United States and other countries.
## www.picotech.com
MM000.en-10. Copyright © 2010–2023 Pico Technology Ltd. All rights reserved.
Pico Technology @LifeAtPico @picotechnologyltd Pico Technology @picotech
## Links
- [View this product on Novapart](https://novapart.co/products/USB%20PT-104%20LOGGER/data-logger-usb-temperature-resistance-4-channel)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/pico-technology/usb-pt-104/data-logger-temperature-rtd/dp/1830984)
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