User manual VOLTCRAFT DVM-230

[. . . ] If a higher voltage is to be measured, an appropriate measuring resistor must be installed externally. Do not go below or above this voltage, because the measuring results would be inaccurate and the module would be destroyed. [. . . ] The product is only to be used in dry indoor locations. no part of the product must be modified or rebuilt!Observe the safety instructions in their entirety!Any usage other than described above is not permitted and can damage the product and lead to associated risks such as short-circuit, fire, electric shock, etc. Please read the operating instructions thoroughly and keep them for further reference. The value will remain in the display until the contacts are removed. 0 mV in the factory, it can be adjusted according to the respective application, for example to compensate for inaccuracies of external voltage divider resistors. the contact "LKT" serves for short-term checks of the display segments. When it is contacted, all the segments are shown for a check. The test connection "LKT" must not be linked for more than 2 seconds, or the module would be damaged. This device can be configured for different voltage ranges, by soldering resistors to the positions RA and RB. For this module, a 0 resistor is installed for RA, which must be removed before RA and RB can be modified. [. . . ] Operating voltage: Current consumption: Measurement range: Display: Measuring impedance: Resolution: Accuracy: Measuring frequency: Temperature stability: Operating temperature: Display light operating voltage: Display light current consumption: Dimensions (W x H x D): Item no. Select the necessary measuring unit and the decimal point you need for your measuring section from the illustration on the right and set the respective soldering link to "ON". [. . . ]