Q&A

Here are some questions...

The communication with my DAS is not working correctly all time. Some times it runs ok, but suddenly it gives a lot of problems. What is wrong with the DAS ?

Probably you need to connect the signal ground on the unit to the signal ground on your RS422/485

I fell that something is wrong with my LAC 65. When I try to measure the “ekscitationvoltage” for the loadcell, my meter shows some strange values. Can there be something wrong with the meter ?

LAC 65 uses a measuring technique where the ekscitationsvoltage constantly changes polarity. Because of that you can’t get any usable values with an ordinary meter. You have to use an oscilloscope

When I calibrate my LDU, it works ok until I turn the power of. When I turn it on again it has forgotten the calibration – What am I doing wrong ?

All changes in calibration data, like placing of the comma etc, must be saved by using the “CS” (calibrate Save) command.

The commands ”SG” and ”SN” doesn’t seem to work. I get the response “ERR” every time I sends one of these commands

You have used the unit with communication set to the factory setup which is “half duplex”, and is used for two wire RS485 communication. This setup only allows the unit to send data on request and not...

The communication with my LDU is not working correctly all time. Some times it runs ok, but suddenly it gives a lot of problems. What is wrong with the LDU ?

Most likely you need to connect the signal ground on the unit to the signal ground on your RS422/485

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