APZ 3421
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PRECISION PRESSURE TRANSMITTER DESCRIPTION APZ 3421 is a high precision pressure transmitter. Based on a silicon piesoresistive sensor and electronic module with an active temperature compensation technology it features exceptional accuracy and response time. APZ 3421 has a wide variety of optional features such as display and digital interfaces to suit almost any of the high precision measurement applications. SPECIFICATIONS Pressure ranges: 40 mbar up to 600 bar Basic accuracy ±0.1% Outputs: 4...20 mA (option – Ex ia); 0...20 mA; 0...10 V; 0...5 V; HART®; RS-485/Modbus RTU Sensor: silicon piezoresistive Pressure port: G1/2”; G1/4”; 1/2” NPT; 1/4” NPT; М20х1.5 etc. Media temperatures: -20…+105 °C Optional: field housing with/without graphics display APPLICATIONS Measurement and test Calibration technology Laboratory equipment 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: 20.05.20

P > 0.1 bar Accuracy, % of span* ≤ ±0.1 ≤ ±0.2 Temperature effect, (% of span / 10 °C) ≤ ±0.02 ≤ ±0.04 Compensated range -20…+80 °C 0…+80 °C Compensated range (optional) -20…+60 °C Power supply effect ≤ ±0.05% of span / 10 V Load resistance effect ≤ ±0.05% of span / kOhm (transmitters with current output) Long term stability ≤ ±0.1% of span / year Response time (10...90%) ≤ 1 ms * Accuracy includes non-linearity, hysteresis and non-repeatability. OPERATING CONDITIONS Medium temperature (depends on seal) Ambient temperature Storage temperature Approval Temperature class Ambient Vibration...

DIGITAL DISPLAY (only for field housing version) Display type Displayed units Displayed values range Display accuracy Settling time Damping OLED 128x64 pixels (30x16 mm) bar, mbar, MPa, kPa, Pa, psi, mmHg, mWc, ftH2O, %, mA, user -1999…9999 0.1 % of span ± 1 digit < 1 s (with damping disabled) 0.3…30 s (programmable) ELECTRICAL SPECIFICATIONS Output signal Power supply, US Load resistance, R 4…20 mA / 2-wire 12…36 V ≤ [(US – 12 V) / 0,02 A] Ohm* 18…42 V (with display) ≤ [(US – 18 V) / 0,02 A] Ohm* (with display) 4…20 mA / HART® 4…20 mA / 3-wire 12…36 V ≤ 500 Ohm 0.5…4.5 V / 3-wire 5 V /...

ELECTRICAL CONNECTIONS, DIMENSIONS (mm) DIN 43650A (IP65) Stainless steel cable gland (IP68) Page. 4. Version: 11.0 Date: 20.05.2020

Field housing Housing of pressure transmitter with welded sensor is 8 mm longer. Housing of Ex version is 25 mm longer Housing of pressure transmitter with RS485 / ModbusRTU output signal is 34 mm longer. Housing of pressure transmitter with HART® output signal is 42 mm longer Page. 5. Version: 11.0 Date: 20.05.2020

PRESSURE PORTS, DIMENSIONS (mm) M20x1.5; G1/2” EN 837 Page. 6. Version: 11.0 Date: 20.05.2020

ORDERING CODE MEASUREMENT TYPE APZ 3421 Gauge Absolute Vacuum, LRL = -1 bar bar kg/cm2 mWC kPa MPa Other (specify when ordering) ELECTRICAL CONNECTION 0.1% (P > 0.1 bar) (standard) 0.2% (P ≤ 0.1 bar) (standard) Other (specify when ordering) DIN 43650A Binder 723 M12x1, straight connector M12x1, angular connector Cable gland M12x1.5 + cable 2 m Stainless steel cable gland + cable 4 m Buccaneer Field housing without display, cable gland M20x1.5 Field housing with display, cable gland M20x1.5 Field housing with display, straight connector M12x1 Field housing with display, angular connector...

ORDERING CODE (CONTINUED) OUTPUT SIGNAL 4…20 mA / 2-wire (standard) 4…20 mA / 2-wire Ex ia IIC T6…T4 Ga X 4…20 mA / 3-wire 0.5…4.5 V / 3-wire Ex ia IIC T6…T4 Ga X RS-485 / Modbus RTU 4…20 mA / HART® Other (specify when ordering) PRESSURE PORT FKM (-25...+125 °C) (standard) NBR (-20...+100 °C) EPDM (-20...+105 °C) Welded sensor (no seals -20...+105 °C) Other (specify when ordering) M20x1.5 DIN 3852 (standard) M20x1.5 EN 837 (standard) G1/2” DIN 3852 (standard) G1/2” EN 837 (standard) G1/4” DIN 3852 (standard) G1/4” EN 837 M10x1 DIN 3852 M12x1 DIN 3852 M12x1 EN 837 M12x1.5 DIN 3852 M12x1.5 EN...