Faqs Frequently Asked Questions - Brainchild VR18 User Manual

8. FAQs frequently asked questions

Q1: What is the maximum scale low and scale high values we can set in the recorder for the analog
inputs and outputs?
A1: The minimum low scales of analog input are various -19999, - 1999.9, - 199.99, - 19.999, -1.9999,
-0.19999 depending on the position of the decimal point
The maximum high scales of analog input are various 45536, 4553.6, 455.36, 45.536, 4.5536,
0.45536 depending on the position of the decimal point
The minimum low scales of Math input are various -32768, -3276.8, -327.68, -32.768, -3.2768,
-0.32768 depending on the position of the decimal point
The maximum high scales of Math input are various 32767, 3276.7, 327.67, 32.767, 3.2767,
0.32767 depending on the position of the decimal point
Q2: What is the maximum distance between PC and Recorder for Ethernet communication?
A2: The distance is limited in 100 meters. If it is farer than that, then you can use Hub or networking
bridge to strengthen the signal.
Q3: What is the maximum distance if PC is accessing data from recorder on wireless network
through Ethernet protocol?
A3: Maximum distance should be within 30 meters. Also make sure that there is no obstacles/ HT cables
between PC and recorder to avoid communication errors. Also Noise could effect the wireless
communication at the factory floor.
Q4: Is there any battery available inside the recorder, which needs to be changed frequently?
A4: The lithium battery Toshiba CR2032 3.0V/220mAH can last for many years. It can be replaced by
local sourcing if Real Time Clock is not working properly.
Q5: What is the accuracy of Real Time Clock in the recorder?
A5: The crystal oscillator used in recorder could have a lag time in a few seconds each week. Press
Synchronization button in PC software Observer II to synchronize the time between PC and the
recorder. The temperature inside the housing has an effect on accuracy of Real Time Clock of
crystal oscillator.
Temperature range
10 ~ 40 ˚C
0 or 50 ˚C
-10 or 60 ˚C
Time lag per month
18 sec.
52 sec.
107 sec.
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