PKP AZ260 Manuale utente
PKP Prozessmesstechnik GmbH
Borsigstrasse 24
D-65205 Wiesbaden-Nordenstadt
Tel: 06122 / 7055 - 0
Fax: 06122 / 7055 – 50
Operating Instructions
AZ260
AZ260-eng Page 1
Instruction Manual
Model AZ260
Table of Contents
1. Safety Instructions
2. Product ID - Dimensions
3. Function Description
4. Installation – Battery Replacement
5. Programming
6. Technical Data
7. Spare Parts
1. Safety Instructions
This instrument has been manufactured in accordance with
the applicable state of the art and meets all safety
regulations as shipped from the factory. Installation and
startup must be performed by qualified electricians only!
Operate instrument only when properly installed!
If safe operation can no longer be ensured, disable the
instrument and secure it against unauthorized operation.
Prevent injury to people or damage to property due to
failure or malfunction of the equipment through additional
safety measures such as limit switches, protective
equipment, etc. .
Read the Instruction Manual carefully before startup!
AZ260-eng Page 2
2. Product Identification - Dimensions
AZ260-eng Page 3
3. Function Description
This instrument can be used as a rate meter and as a pulse
counter.
The instrument has been pre-programmed in the factory
and must be adapted to your process for both the rate
meter function and pulse counting (see Section 5 –
Programming).
The instrument is ready for operation when the
programming input is not wired. You can switch between
Rate meter and Pulse Counter displays using the S/E key
during operation at any time.
The instrument has two counting inputs.
Both inputs INA and INB (”Low“ or ”High“ active) are
designed for pulse sequences up to 30 Hz or up to 10 kHz
and you can they program any.
Note that you have to program both channels at the same
pulse sequence if the two inputs are working in parallel
connection with a common pulse source.
The backlighting is activated and load on the internal
battery is reduced by applying an external supply voltage of
24 VDC.
All stored data is lost when the battery is replaced. The
message "260_ xx" (xx for software version number)
appears after the new battery is installed. The instrument is
ready to operate after the S/E key is depressed, which
activates the factory programming.
AZ260-eng Page 4
Rate Meter
The rate meter operates by the principle of period length
measurement with ARS (Auto Range System).
You can adapt the display to your operation using the
programming sequence:
1. Input the physical unit of the rate meter (time basis)
2. Select accuracy
3. Set sensor pulse constant,
4. Program a suitable scaling factor and
5. Program the pulse sequency.
ARS helps minimize display process-related fluctuations
depending on the selected accuracy, rounds off the
displayed value, and sets the decimal point automatically.
Measurement starts with the active edge at the counter
input A. After the measurement time (1 sec) has elapsed,
the measurement is completed with the next active edge,
and the value is displayed in CHANNEL A. If no active edge
appears within the „time out“ period you have programmed,
the rate meter is reset to zero. At frequencies > 1 Hz the
average is calculated.
When the allowable count frequency is exceeded, the value
zero appears in the display; if the possible display range
(99999999) is exceeded, the display „E“ appears.
Display as delivered:
A
1
min
/
CHANNEL
AZ260-eng Page 5
Pulse Counter
The pulses entering at the input B are added and displayed
in CHANNEL B. You can scale the display using an
appropriate scaling factor. You can also set a fixed decimal
point and program the pulse counter so that you can reset it
either through the regular electrical reset on the back or
through the red Rkey on the front.
After pressing the S/E key:
B
CHANNEL
4. Installation – Battery replacement
After unpacking the instrument, remove the light-colored
frame from the back of the housing by simultaneously
bending both long sides of the frame slightly apart to
disengage them from the locking holes.
Then slide the housing through the cutout prepared in the
front panel, attach the frame onto the back of the housing,
slide it all the way against the back of the front panel, and
carefully attach it with the two side screws to the front
panel.
In this way, you can compensate for different front panel
thicknesses. Class IP 65 front protection is achieved
through the seal integrated in the housing.
See the wiring diagram below for the electric wiring.
AZ260-eng Page 6
1
2
3
4
5
6
0 V
Modell 260
IG
"LOW"-activ
Programming -
GND
Input INA
Input INB
Reset
Input
24 VDC Input
for Backlight
24 VDC "LOW"-activ
"HIGH"-activ
IG
"HIGH"-activ
Input INA+INB at "LOW"-activ Programming, Contacts not displayed
The battery is accessible from the back of the instrument.
There is a vertical notch under the middle of the nameplate.
Cut through the nameplate there.
Then slide out the two-part battery cover to one side along
the guide grooves, and replace the battery observing the
correct polarity. The instrument MUST BE connected to
24 VDC at this time, otherwise all settings will be lost!
5. Programming
The instrument can only be programmed by setting the
programming input PROG to 0 V.
Please note that this causes the pulse counter to be reset
internally.
After having set the programming input PROG to 0 V, the
following is displayed:
AZ260-eng Page 7
A
CHANNEL
This display identifies the rate meter (Channel A); it cannot
be changed.
By repeatedly pressing the S/E key, you can cycle through
the individual menu items. The following figures correspond
to the factory settings of the instrument:
A
1
min
/
CHANNEL
A
%
CHANNEL
Physical unit, Accuracy,
Channel A Channel A
A
CHANNEL
A
CHANNEL
Sensor pulse constant, Scaling factor,
Channel A Channel A
A
CHANNEL
A
CHANNEL
Time-out period, Channel A Count frequency, Channel A
B
CHANNEL
This display identifies the pulse counter (Channel B); it
cannot be changed.
AZ260-eng Page 8
B
CHANNEL
B
CHANNEL
Count frequency, Channel B Scaling factor, Channel B
B
CHANNEL
B
CHANNEL
Decimal point, Channel B Reset-key enabled,
Channel B
You can make changes within each menu point as follows:
1. Press the <R key:
The parameter to be changed is activated, i.e., it
begins to flash.
2. Press ^repeatedly if necessary:
Set the desired parameter.
3. Press S/E:
The parameter just set is confirmed and displayed
steadily.
4. Press S/E again:
You reach the next menu item.
See the possible settings allowed in each menu from the
following figures.
Flashing display elements are shown in a lighter color.
AZ260-eng Page 9
Physical unit, Channel A – Rate Meter
Selecting the physical unit:
A
1
min
/
CHANNEL
A
1h/
CHANNEL
Physical unit: 1/min Physical unit: 1/h
A
ls/
CHANNEL
A
l
min
/
CHANNEL
Physical unit: l/s Physical unit: l/min
A
lh/
CHANNEL
A
gals/
CHANNEL
Physical unit: l/h Physical unit: gal/s
A
gal
min
/
CHANNEL
A
galh/
CHANNEL
Physical unit: gal/min Physical unit: gal/h
A
1 s/
CHANNEL
Physical unit: 1/s
Accuracy, Channel A – Rate Meter
Setting measurement accuracy. See also page 13.
Indice
