Measurement Computing WBK Options - Manual (Page 128)

DC Accuracy
As previously mentioned, the 2-pole and Bypass filter modes are most commonly used in applications
where DC signal information is important. The AC response of each of these modes is described above.
The DC accuracy, excluding noise, for both modes is:
Accuracy at 0° to 50°C (32° to 122°F)
± % of Reading
Range
Typical Maximum
Offset
±25V 0.5 1 ±15mV
±5V 0.15 0.3 ±3mV
±2.5V 0.15 0.3 ±2mV
±1V 0.15 0.3 ±1mV
±500mV 0.15 0.3 ±900 µV
±250mV 0.15 0.3 ±800 µV
±100mV 0.15 0.3 ±800 µV
±50mV 0.15 0.3 ±800 µV
±25mV 0.2 0.4 ±800 µV
These numbers are valid for 1 year after calibration and over the entire operating temperature range
of the unit.
Module Configuration
Overrange Detection
The configuration of overrange detection is done through the
Module Configuration window. The Module Configuration
window can be accessed from the View pull-down menu or by
use of the first toolbar button (located just below the File pull-
down menu). In this window, the user enables/disables
overrange detection on a per channel basis. A checkmark next to
the channel number indicates that overrange detection is enabled
for that channel. The overrange detection level is also set in this
screen. It is set as a percentage of range that applies to all
channels of the WBK18 unit being configured. After channel
enable and level selections are made, the “Apply” button must be
clicked to accept the changes.
Module Configuration Window
When configuring overrange detection, after channel enable and level selections are made, the
button must be clicked to accept the changes.
WBK18, Dynamic Signal Input Module 926896 WBK18, pg. 13