ASZ 3420 p
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ELECTRNONIC PRESSURE SWITCH WITH PNP OUTPUTS DESCRIPTION ASZ 3420 p is an electronic pressure switch with PNP (high side) outputs. High quality silicon piezoresistive sensor and a microcontroller based electronic board provide a highly flexible and configurable solution for local equipment control. User is able to choose from a wide variety of relay triggering algorithms and adjust setpoints and hysteresis values (*). Additionally, 1-5 V analog output is provided, thus ASZ 3420 p is a pressure switch and a transmitter at the same time, making this model stand out in comparision to conventional mechanical switches. SPECIFICATIONS Pressure ranges: 40 mbar up to 600 bar Setpoints, hysteresis: adjustable (*) Basic accuracy: ±0.25% Switch outputs: PNP (high side), 2 pcs Analog output: 1...5V (3-wire); Sensor: silicon piezoresistive Pressure port: M20x1.5; G1/2”; G1/4”; 1/4” NPT etc. Media temperatures: -40...+125 °C APPLICATIONS Industrial equipment protection Pressure monitoring and control Tank liquid level maintaining Pumps, fans local control (*) set points and other parameters can be set either by factory or by user via PCON 200 adapter (sold separately) Appearance, mounting kit contents and/or specifications are subject to change without prior notice. We are constantly working on further improvement of our products. Delivery is subject to standard terms of delivery. © 2020 Piezus Page 1. Version: 11.0 Date: 20.05.2020

Accuracy, % of span* Temperature effect, (% of span / 10 °C) Compensated range Power supply effect (rated supply voltage - 24 V ± 10%) Long term stability ≤ ±0.1% of span / year Response time (10...90%) ≤ 5 ms Startup time (after powering up) less than 0.2 s * Accuracy includes non-linearity, hysteresis and non-repeatability. OPERATING CONDITIONS Medium temperature (depends on seals) Ambient temperature Storage temperature Vibration resistance Shock resistance Pressure sensor service life Contacts switch cycles * Except for devices used with aggressive media.

MECHANICAL SPECIFICATIONS Pressure port material Housing material Seal Diaphragm Wetted parts Pressure port Electrical connection Cable diameter Wire cross section Ingress protection (GOST 14254) Dimensions, mm, max Weight, max ELECTRICAL SPECIFICATIONS Power supply (US), V Power consumption, max Analog output: Output signal Emergency output mode Load resistance (RL) Galvanic isolation resistance to case, min. Relay outputs (PNP): Number of relay outputs Output type (configurable) Max switching current Switch operating modes (configurable) Relay outputs accuracy Switching frequency, max...

ELECTRICAL CONNECTIONS, DIMENSIONS (mm) Housing of transmitter with welded sensor is 8 mm longer PRESSURE PORTS, DIMENSIONS (mm) M20x1.5; G1/2” EN 837 Page. 4. Version: 11.0 Date: 20.05.2020

ORDERING CODE MEASUREMENT TYPE ASZ 3420 p Gauge Absolute Vacuum, LRL = -1 bar 0.25% (P > 0.4 bar) (standard) 0.50% (P ≤ 0.4 bar) (standard) Other (specify when ordering) ELECTRICAL CONNECTION OUTPUT SIGNAL bar kg/cm2 mWC kPa MPa Other (specify when ordering) NUMBER OF SWITCH OUTPUTS Page. 5. Ordering code. Version: 11.0 Date: 20.05.2020 1 switch output 2 switch outputs M12x1, straight connector M12x1, angular connector Other (specify when ordering)

ORDERING CODE (CONTINUED) PRESSURE PORT M20x1.5 EN 837 (standard) G1/2” EN 837 (standard) G1/4” DIN 3852 (standard) G1/4” EN 837 G 3/4” DIN 3852 flush diaphragm G 1/2” DIN 3852 open port 1/4” NPT 1/2” NPT Other (specify when ordering) FKM (-25...+125 °C) (standard) NBR (-25...+100 °C) EPDM (-40...+125 °C) Welded sensor (no seals -40...+125 °C) Other (specify when ordering) Standard Other (specify when ordering) PZ 1024 Power supply unit PCON 200 Programming adapter Page. 6. Ordering code. Version: 11.0 Date: 20.05.202

PRESSURE SWITCH ORDER FORM ORDERING CODE CONFIGURABLE FEATURES AND FUNCTIONS Switching outputs operation logic (Sout) depending on input pressure (P). Window mode Hysteresis mode Pulse mode Note: The default mode is A. In normal (non-inverse) mode, Sout at „1“/ „0“ means that the relay output is active/not active, respectively. In inverse mode (Mode inverted), Sout graph mirror-inverts along the horizontal axis: „0“ is „1“, „1“ is „0“. Switch outputs operating mode parameters (one mode selected): Mode A: Hysteresis Mode C: Pulse Mode Output mode Customer Order number: Company: Phone / fax /...