Always stop the current logging session in the software before trying to download data to prevent file corruption.
USB cables degrade over time or may be charge-only wires. Swap the cord with a known, high-quality data-transfer USB cable.
CEM Instruments (Shenzhen Everbest Machinery Industry Co., Ltd.) can sometimes provide the software upon request. Reach out via the contact form on their official website. Provide your device serial number and proof of purchase to expedite the process.
Because the De-Graph software was originally engineered for older operating systems, it may crash on startup or freeze during data downloads on modern systems. cem dt172 data logger software download fix
If the device appears as "Unknown," it may be in a dormant state due to low USB voltage or a frozen micro-controller.
The DT‑172 uses a proprietary USB protocol, so generic logger software (such as EZ Data Logger or InduSoft) will work with it. You must use CEM’s own software – there is no reliable open‑source replacement.
Point it to the Driver folder within the software installation directory (usually in C:\Program Files (x86)\Datalogger ). Always stop the current logging session in the
host host software and Windows 10 fixes for similar CEM-style loggers. Fixing Connection Issues
Click , unplug the USB cable, plug it back in, and restart the software. Step 5: Hardware and Cable Troubleshooting
Older versions of the CEM driver lack modern digital signatures, causing Windows 10 and 11 to block them automatically. CEM Instruments (Shenzhen Everbest Machinery Industry Co
in the Device Manager and manually reassign it to a lower number (like COM2 or COM3).
| Problem | Typical Cause | |---------|----------------| | Software won’t install | Missing runtime libraries (MSVC, .NET) or antivirus blocking | | Device not detected | Driver not installed or Windows updated replacing drivers | | “No device found” | Wrong COM port or USB cable defective | | Software crashes on graph | Corrupted configuration file or old Windows version | | Download hangs at 0% | Incomplete driver installation or USB power management |
Find the "USB-Serial" or "Unknown Device" under or USB Controllers .
: Legacy versions of the "Data Logger" software are incompatible with modern Windows operating systems.