Adam Equipment CBD Series Service Manual page 8

Table of Contents

Advertisement

(The sense wires connections of a six wire load cell are not used but can be
connected to the respective Excitation pins).
REMOTE SCALE SET UP
The remote scale should set for a realistic resolution with respect to the input
provided by the load cell/s.
If a single 2mV/V load cell is fitted and more than 60% of the load cell is used for
full capacity then the high output of >6mV span makes it possible to set a high
resolution.
If this criterion is met then the remote scale can be set to a high resolution with a
maximum of 1:30,000, i.e. 300kg x 10g.
It will also be possible to sample on the remote scale with the same accuracy as
the Local.
Where more than one load cell is fitted or the total load cell capacity is not
utilised then a reduced resolution should be selected in the remote scale
technical set up. For example, if a system uses four 2mV/V 1000kg load cells for
a scale of 1000kg capacity then the span output at full scale will be only 2.5mV.
In this situation the resolution should be reduced to give a good number of ADC
counts per displayed division. ie. Set to 1:5000 or 1000kg x 0.2kg.
Setting a high resolution without providing a good input to the remote scale ADC
will not give better accuracy and may make the scale difficult to meet
performance specification.
For best performance ensure a minimum of 0.1µV/d.
@Adam Equipment Company 2007
Pin numbers
Pins 1,2
Pins 4,5
Pin 7
Pin 8
6
Connection
- Excitation (0v)
+ Excitation (+5v)
+ Signal
- Signal

Advertisement

Table of Contents
loading

Table of Contents