The Eastwood QR101B-2M-RX resistance decade box can output desired resistance, making it very useful for prototyping, measuring or analysing.
It features a electronically controllable switch, a modern user interface with a keypad for input and a mini OLED screen for displaying by default the Step-point (SP), resistance Process Value (PV) and max voltage allowed (U<) of PV.
The Plug-and-play USB port supports any free/open source serial software, supporting ASCII type AT style commands. It is also used to charge the 300 mAh Li-Polymer battery, with 500+ charge/discharge cycles and an 12 hour battery life. Furthermore, it features a user calibration function which can be very useful for maintenance.
The models primarily differ in resistance range, resistance stepsize and accuracy.
|Resistance range||1 Ω - 630 kΩ||1 Ω - 1.2 MΩ||1 Ω - 630 kΩ||1 Ω - 1.2 MΩ|
|Resistance stepsize||0.1 Ω||0.125 Ω||0.1 Ω||0.125 Ω|
|Accuracy (500Ω - 2MΩ)||0,05%||0,05%||0,02%||0,02%|
|Temperature coefficient||50 ppm||50 ppm||25 ppm||25 ppm|
|Power||2 W, 200 Vdc|
|Thermo-electric potential||< 80 µV|
|Operating time||12 hours|
|Dimensions||55 mm x 70 mm|
The Eastwood QR101B-2M-RX decade box comes with: