User manual - DATA RECORDER and cooperating software
”Dec. point”
- position of the decimal point for results displayed in numerical form.
The following options are available:
” 0”
” 0.0”
” 0.00”
”0.000”
The position of the decimal point is selected with
[^]
,
[v]
keys.
”Upper ext.”
”Lower ext.”
- parameter defining the allowable range of input currents
If the input current (voltage) lies within the defined range then the appropriate
measurement result shall be displayed despite exceeding the nominal
measurement value (0-20 mA, 4-20 mA, 0-5 V, 1-5 V, 0-10 V, 2-10 V). If the
input current (voltage) exceeds the range defined by
“Upper extension”
,
“Lower extension”
, a "-
Hi
-" or "-
Lo
-" message (depending on the direction of
exceeding the range) shall be displayed instead of the measurement result in
numeric form. The
“Upper extension”
and
“Lower extension”
values are
defined in mA or V with the accuracy of 0.01 mA or 0.01 V.
The
“Lower extension”
value is defined in relation to a 4 mA current, in the
range of 0-3.99 mA, 1 V voltage, in the range 0-0.99 V, 2 V, in the range of
0-1.99 V (this parameter is not significant in the “0-20 mA”, “0-5 V” and
“0-10 V” mode). The
“Upper extension”
value is defined in relation to a
20 mA current in the range of 0-1.99 mA, 5 V voltage in the range 0-0.49 V,
10 V in the range 0-0.99 V.
Fig. 7.22. Defining permissible measurement range for an example of settings of
“Upper ext.”
and
“Lower ext.”
parameters (for user range 4-20 mA)
5
5
user defined range (4-20 mA)
permissible measurement range
”
Lower ext.
” = 3mA
”Upper ext.”
= 1 mA
measurement result is displayed
regardless on nominal range exceeding
display
message ”-Lo-”
4
display
message ”-Hi-”
1
0
20 21
22
Summary of Contents for ZLS-2
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