Piezus ASZ 3410p User manual

ASZ
(3410p, 3410r, 3420p, 3420r)
Operation manual
1.2 See Table 1 for output specifications.
Table 1 - Output parameters
Parameter
Value (properties)
Analog output:
Number of measuring channels
one
Output signal parameter:
- 3410p, 3420p - voltage (Uout)
- 3410r, 3420r - current (Iout)
1 ... 5 V
4 ... 20 mA
Switch outputs:
Tripping threshold (configurable)*
0 ... 100% of span
Operation mode (outputs switching) *
hysteresis / window /
pulse
Switching accuracy**:
- 3410p, 3410r
- 3420p, 3420r (P> 0.4 bar)
- 3420p, 3420r (P ≤ 0.4 bar)
≤ ± 0.5% of span
≤ ±0.25% of span
≤ ± 0.5% of span
Switching delay*
0...650 s
- models 3410p, 3420p:
Output type (configurable)*
direct/inverse
Max switching voltage
36 V (DC)
Max switching current
400 mA, short-circuit
protection
- models 3410r, 3420r:
Type of switch contact outputs
(specified in ordering code)
NC and NO
Max switching voltage
250 V (AC); 30 V (DC)
Max switching current (contact type)
5 A (NO)/3 A (NC)
*Configurable by user. See Setup manual for instructions.
* Accuracy includes non-linearity, hysteresis and repeatability (under IEC
60770).
2.2. Operating conditions:
2.2.1 The device was designed to operate in the following conditions:
- no aggressive vapors, gases and liquids in the environment;
- ambient temperature from -40 to +70 °С;
- permissible media temperatures depends on seal material, see Technical
specifications;
- sensor exposure (liquids, gases and vapors):
• ASZ 3420p, ASZ 3420r - media non-aggressive to stainless steel;
• ASZ 3410p, ASZ 3410r - aggressive media;
- atmospheric pressure from 84 to 106.7 kPa (group R1 under GOST R
52931);
2.2.2 Resistance to mechanical attack puts the device in group N2 under
GOST R 52931.
2.3 Operating limitations:
- medium should be free from crystallizable impurities, contaminations and
dust;
- connect the device where the medium is still or almost still and produces
no vortices;
- install DZ 10 or the like pressure snubber before the device if the system
can produce hydraulic shocks;
- use impulse tubing (pre-filled with water) when measuring vapour
pressure.
1
2
3
4
5
DO NOT:
allow voltage exceeding maximum specified for the transmitter;
use any objects to touch or otherwise apply mechanical force to
the diaphragm;
use transmitters bearing visible signs of mechanical damage;
use transmitters in inappropriate climatic conditions;
allow medium temperatures above or below the limits specified
for the transmitter.
3 Design and operation
3.1 Diagrams of Figure 1 explain the principle of operation of the device.
Figure 2 - Structural diagram
Analog-to-digital converter (ADC) receives signal from the sensor and
sends it to the microprocessor that filters, corrects, scales it, generates
signals for switches (K1, K2) and outputs a normalized analog signal linear to
the pressure measured. Digital representation of the measured pressure can
reach a PC via P-Conf software (ASZ 3410p and ASZ 3420p models need to
have their analog outputs off to transfer data to PC).
3.2 LEDs 1 and 2 (located on the side, next to electrical connector) light up
when the pressure is within the keys tripping range.
This manual covers ASZ pressure switches (hereinafter referred to as
"switch" or "device"); it contains technical data, description of design and
other information necessary for proper application and maintenance of the
device.
See datasheets at http://piezus.ru for complete specifications.
Production regulated by TOR 4212-000-7722857693–2015.
Terms and abbreviations used in the manual:
Span – measurement range; NC - normally closed (NC contact);
NO - normally open (NO contact); PC - personal computer;
DC - direct current.
1 Purpose of the device
1.1 Pressure switches find application in monitoring, protection, alarm and
control systems in heat and power installations, air conditioning systems,
various industrial environments and public utilities.
1.2 The device:
- proportionally and linearly converts the pressure measured into a
normalized output signal:
3410p, 3420p - voltage, 1 ... 5 V; 3410r, 3420r - current, 4 ... 20 mA;
- compares current pressure value to the preset thresholds and outputs two
discrete signals when the monitored parameter crosses those thresholds (as
prescribed by the selected operation algorithm, hysteresis or window);
2 Technical specifications
2.1 General technical data
2.1.1 Refer to the device's passport and label (sticker) for span and accuracy
info.
2.1.2 P-Conf communication interface allows controlling value of the
measured pressure from a PC, as well as changing operation modes and
parameters as required.
2.1.3. Power supply - 12 ... 36 V (DC), - rated voltage - 24 V.
2.1.4 Current consumption, max: models 3410r, 3420r - 100 mA;
models 3410p, 3420p – 10 mA (excl. key outputs load).
2.1.5 Power consumption, max - 3.6 W (0.36 W for "p" models).
2.1.6 See Supplement A for design of the devices. Overall dimensions: 3410p
and 3420p - Ø28x90 mm; 3410r and 3420r - Ø48 × 120 mm.
2.1.7 Weight, max: "p" models - 0.15 kg; "r" models - 0.25 kg.
2.1.8 Housing ingress protection (GOST 14254) - IP65.
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PRESSURE SWITCH

4 Installation instructions
4.1 Install the transmitter with maintenance convenience (incl. mounting,
dismantling) in mind. We recommend mounting the device with its pressure
port pointing downwards (to allow condensate draining).
4.2 If the medium is gaseous, position the device so that the pressure take-
off tubes slope up uniformly (1:10 min) to the device and slope down if the
medium is liquid. In case such installation positions are impossible, mount
settling vessels at lower portions of pressure take-off tubes for gaseous
media and gas holders at their higher portions for liquid media.
4.3 Screw the device into a prepared hole (must be of the required size) to
expose the diaphragm to the medium. Use the seals supplied or those
resistant to the medium.
4.4 Use an S24 wrench to lock the transmitter in place.
DO NOT USE any thread seals (fiber, Teflon tape) other
than supplied.
DO NOT CONNECT pressure switches to enclosed
volumes filled with liquid.
Never hold onto the device's body when screwing it in!
Use the hexagon found on the housing for that purpose.
4.5 Always cut off power when connecting the device's circuits.
4.5 Connect circuits as shown on the wiring diagram in Supplement B (the
device has reverse polarity protection).
5 Setup
The device is programmable, i.e. you can select operation algorithms and set
the parameters. See Setup manual for programming instructions.
6 Operation and maintenance
1
2
3
4
5
DO NOT:
allow voltage exceeding maximum specified for the
transmitter;
use any objects to touch or otherwise apply mechanical
force to the diaphragm;
use the device that bears visible signs of mechanical
damage;
use the device in inappropriate climatic conditions;
allow medium temperatures above or below the limits
specified for the device.
Routine maintenance frequency - at least once a year; it includes checking
reliability of mounting and removal of dust and dirt.
6.2 Check the diaphragm (it should be clean) and electrical connections on a
regular basis after putting the transmitter into operation.
6.3 Do not use forced rinsing for cleaning purposes.
6.4 Routine checkups of the device in operation follow data specified in its
passport.
6.5 See the device's passport for its calibration interval and manufacturer's
warranty.
6.6 The manufacturer refuses all claims, reclamations, complaints related to
devices with damaged manufacturer seals and showing signs of damage
resulting from inappropriate operation, transportation or storage.
6.7 All and any repairs are done by the manufacturer exclusively.
7 Marking
The device bears a label (sticker on the back of the housing) that contains
the following information:
- name of the manufacturer, bar code (QR code);
- code of the device;
- measured pressure range;
- output signal range;
- circuits contacts numbers;
- serial number and production date;
- manufacturer's trademark;
- supply voltage, power consumption;
- electric shock protection class (GOST 12.2.007.0);
- ingress protection rate (GOST 14254).
8Package contents
See Table 2 for delivery package contents.
Table 2 - Package contents
Name
Quantity
ASZ 3410(p, r) or ASZ 3420(p, r) pressure switch
1 pc
Passport 1 copy
User manual (this paper)
1 copy*
Setup Manual 1 copy*
Calibration leaflet
1 copy **
P-Conf device programmer (adapter) and P-Conf
software
1 set **
* 1 copy per 10 devices for batch supplies to the same address. Papers
can be downloaded from the manufacturer's website.
** Supplied on request.
9 Resource and service life
9.1 Operating mode: continuous.
9.2 Mean time between failures: 120,000 h.
9.3 Service life - 12 years (normal working conditions: non-aggressive
medium, temperature at +23 ± 3 °С, no vibrations and shaking).
10 Disposal
10.1 The device contains no precious metals.
10.2 Dispose of as prescribed by regulations adopted by the operator.
Supplement A
Appearance of the pressure switch
ASZ 3410p, ASZ 3420p ASZ 3410r, ASZ 3420r
Supplement B
Electrical connections diagram
ASZ 3410p, ASZ 3420p
ASZ 3410r, ASZ 3420r
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© Piezus
http://www.piezus.ru/
Made in Russia

ASZ
(3410p, 3410r, 3420p, 3420r)
Setup Manual
This setup manual applies to ASZ pressure switch. It is a supplement to the
operation manual.
Terms and abbreviations used in the manual:
Span - measurement range;
PC - personal computer.
1 General information
You can change the factory settings depending on your goals and operating
conditions. The device is programmable, i.e. you can select operation
algorithm and set the parameters. See Section 2 for programming
instructions.
2 Setup order
2.1 Connecting device programmer
2.1.1 To setup the device, you need a PC with the P-Conf software installed
and a P-Conf device programmer (adapter) (Supplement A).
Run P_Conf.exe to launch programmer software.
2.1.2. Connect the switch to any USB port of the PC through the device
programmer as shown on the diagram in Supplement B.
Both the device programmer and the switch receive power from the PC during
setup. There is no need to disconnect the device from the medium, i.e. you
can see its pressure in the software's window.
2.2 Using P-Conf software
2.2.1 To configure the device, proceed as follows.
1) turn on the PC and launch P-Conf; a window with two menu items shows
up (Figure 1);
Figure 1 - P-Conf starting window
2) select "Connection" -"Setup Serial Port" (Figure 1), then select the port
the programmer is connected to, click OK to confirm (Figure 2);
Figure 2 - Port selection dialog
3) select "Connection" - "Connect"; successful connection brings up a window
with configurable settings (Figures 3 or 4).
Figure 3 - Configuration tab, models 3410p, 3420p
The "Product info" section shows current settings of the device (these can only
be changed at the Advanced tab):
Serial N - Serial number of the batch;
Device type – type of switch outputs:
1 – mechanical contacts; 2 – electronic PNP keys;
URV and LRV – upper range value (upper range limit) and lower range value
(lower range limit);
Switch 1 (2) -
switch 1 (2) operation mode, Normal and
Inverted;
Vout (%FSO) - in "p" versions, voltage output, characteristic's start (1 V) and
end (5 V) points as percentage of the entire measurement range. This setting
allows narrowing the controlled range.
Iout (%FSO) - in "r" versions, current output, characteristic's start (4 mA) and
end (20 mA) points as percentage of the entire measurement range. This
setting allows narrowing the controlled range.
Figure 4 - Configuration tab, models 3410r, 3420r
The "Auto" section shows the pressure measured (when enabled).
With Enable checked, sections "Switch output 1 (2) settings" (Figure 3) or
"Relay 1/2 Settings" (Figure 4) allow setting basic parameters for each
switch, depending on the selected output operating mode: hysteresis,
window or pulse (Table 1).
Table 1 – Output operation modes parameters
Mode
Operation mode parameter
Hysteresis Mode
Level ON
Level OFF
Delay ON
Delay OFF
Window Mode
Upper level
Lower level
Delay Upper
Delay Lower
Pulse Mode
(Figure 5)
Start level
Reset level
Delay Pulse
Pulse width*
* Pulse width minimum values: 10 ms for 3410p, 3420p; 20 ms for
3410r, 3420r
HYSTERESIS, WINDOW or PULSE modes are selected separately for each
switch from the special menu.
Note: the "Advanced" tab should only be used by certified dealers for the
purposes of calibration. This tab is password protected.
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PRESSURE SWITCH

Figure 5 - Main window of the configuration software
See graphs at Figure 6 to understand the difference between the modes.
Figure 6 - Switching outputs operating modes (Sout), inlet pressure (P)
changes
Note: when operating in Mode Inverted, Sout graph is flipped over.
PULSE mode is used with automatically locking starters. The next pulse forms
if the pressure falls to RESET level and then reaches START level.
The switching point (level) can be set between 0 and 100% of the entire span
(the smallest difference between ON and OFF pressure levels should be ≥ 1%
of span).
Delay (Delay ON, Delay Upper, Delay Pulse) allows filtering out short-term
pressure changes. The switch does not change its state during the delay time
after the pressure has exceeded the threshold (Figure 7).
Figure 7 - Switch contacts delay, HYSTERESIS mode example
4) once done changing the settings, press "Save settings" and wait at least 10
seconds for the process to complete;
5) disconnect the programmer from PC and device; setup is now complete.
3 Factory settings
The standard settings are as follows.
- switches 1 and 2 operating mode - HYSTERESIS;
- switching-on level - 80% of span;
- switching-off level - 75% of span;
- delay ON - 0 ms;
- delay OFF - 0 ms;
Press "Read settings" to see the settings of a newly connected device (when
the software is running).
Supplement A
Exterior of the device programmer
P-Conf's housing has a USB port and a cable that connects it to the configured
device via the 5-pin M12×1 connector.
Supplement B
Connecting the device programmer
a)models 3410r, 3420r
b) models 3410p, 3420p
Figure B.1 - Connecting the device programmer:
1 - built-in cable, P - pressure measured
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© Piezus
http://www.piezus.ru/
Made in Russia