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10
DPF20 Frequency, rate, total or period counter
Instruction Manual
Decimal point
Press ‘SQ’ (
<
) for 1 second to access the ‘
configuration menu
’.
For a description on how to operate inside the menus see section
1.17
. For a full vision of the ‘
configuration menu
’ structure see
section
1.20
.
To configure the initial set up of the instrument, select the function
mode, the decimal point position, scale the reading and configure
the mode selected and the sensor.
Enter the ‘
Function mode
’ (‘Func’) menu and select the desired func
-
tion, from the 5 counting modes, 2 ratemeter modes and the period
-
meter mode available.
• ‘
Counter’ (‘cn. 1’) - normal counter mode. Impulses input at chan
-
nel A. Channel B disabled.
• ‘
Counter quadrature’ (‘cnq.2’) - counter mode for quadrature sig
-
nals. Impulses input at channel A and B, in quadrature.
• ‘
C inhibition
’ (‘
cnI.3
’) - counter mode with inhibition con
-
trol. Impulses input at channel A. Inhibition control on channel B.
• ‘
C control add
/
substract
’ (‘
cnc.4
’) - counter mode with
control for add / substract. Impulses input at channel A. Control for
the add or substract function on channel B.
• ‘
Counter differential
’ (‘cnd.5’) - counter mode with differential
function. Impulses received at channel A add. Impulses received at
channel B substract.
• ‘
Ratemeter’ (‘rt.6’) - ratemeter mode. Impulses input at channel
A. Channel B disabled.
• ‘
Ratemeter quadrature’ (‘rtq.7’) - ratemeter mode for quadrature
signals. Impulses input at channel A and B, in quadrature.
• ‘
Periodmeter’ (‘Prd.8’) - periodmeter mode. Impulses input at
channel A. Channel B disabled.
Access the ‘Decimal point’ (‘dP’) menu to select the decimal point
position. Move the decimal point by pressing the ‘LE’ (
3
) key.
Configure the function mode selected (‘cnF.2
’ to ‘
cnF.8’). See sec
-
tions
1.19.2
to
1.19.9
.
Configure the sensor at the ‘SnSr’ menu. See section
1.19.10
.
Function
mode
Counter
Counter quadrature
C inhibition
C control add / substract
Counter differential
Ratemeter
Ratemeter quadrature
Periodmeter
Configuration menu for mode ‘counter’ (‘cn.1’). Total impulses re
-
ceived are multiplied by the value of the ‘multiplier’ (‘MuLt’) register
and divided by the ‘divider’ (‘
dIV
’) register. Result is refreshed on the
display.
• assign the value for parameter ‘
Multiplier
’ (‘MuLt’) from 1 to
999999.
• assign the value for parameter ‘Divider’ (‘
dIV
’) from 1 to 999999.
• assign the value for ‘Preset’ (‘PrSt’) from -199999 to 999999. Reset
activation loads on display the preset value.
• select the counting mode (‘ModE’) to ‘uP’ for upwards counting
(impulses received add) or ‘doWn’ for downwards counting (impuls
-
es received substract).
• to activate the ‘FAST’ mode (‘FASt’) select ‘on’. See section
1.16
for
more information on the ‘FAST’ mode.
1.19.2 Configuration for ‘cn.1’
The next menu accesses the configuration parameters for the ‘
function mode’ (‘Func
’)
selected. Configuration parameters are slightly different for each ‘
function mode
’. In
the next entries, all 7 possible configuration menus are explained, ‘
cnF.1
’ to ‘
cnF.7
’, one
for each ‘
function mode
’.
Multiplier
1 to 999999
Divider
1 to 999999
Configuration
counter
Multiplier
Divider
Preset
Preset value
-199999 to 999999
Mode
Up
Down
‘FAST’ mode
1.19
Configuration menu
1.19.1 Initial set-up