Digital pressure meter ZET 7012-A-VER.3

  • Integrated primary transducer
  • Explosion-proof version
  • RS-485 digital output
  • 4-20 mA output version available
  • 4-digit indicator

POR (price on request)

* Minimum order value: from 7 700 USD

Upper measurement range is to be specified in comments to the order

*Delivery term – from 3 weeks


of ZET 7012-A VER.3 digital pressure meter

Metrological specifications
Measured value absolute pressure
Measurements error (from the measurement range) 0,1%
Upper limit of pressure measurement range 0,04 MPa; 0,06 MPa; 0,1 MPa; 0,16 MPa; 0,25 MPa; 0,4 MPa; 0,6 MPa; 1 MPa; 1,6 MPa; 2,5 MPa; 4 MPa; 6 MPa; 10 MPa
Bottom limit of pressure measuring range 160 Pa
Resolution 0,005%
Additional measurement error (caused by temperature fluctuations) 0,1 %/ °10 C
Technical specifications
Data refresh rate 1 Hz
Digital interface
Data transfer interface RS-485
Exchange speed 4800, 9600, 14400, 19200, 38400, 57600, 115200 bps
Parity control 0 – no control; 1 – control (parity, ODD)
Exchange protocol Modbus RTU
Analog interface*
Current signal 4-20 mA
Load impedance 0…250 Ohm
Operational specifications
Indicator bright red, 7 sections, 4-digit
Power supply from 9 to 24 V
Consumed power 0,5 W
Reverse polarity protection yes
Operational temperature range from -40 to +85°C
Operation environment liquids and gases non-aggressive to titanium alloys and stainless steels
Design versions Standard (IP68 protection degree)
Explosion-proof* (explosion protection of 1ExdIIAT6X type, cable length – 4 m)
Pressure overload 1,5×Upper limit of pressure measuring range
Electromagnetic compatibility EMC
IEC 61000-4-2, ESD contact 4 kV; air 8 kV
IEC 61000-4-4, EFT power supply 0,5 kV; signal 0,25 kV
IEC 61000-4-5, Surge 500 V



of ZET 7012-A VER.3 digital pressure meter

Digital pressure meter ZET 7012-A-VER.3 is used for fast and simple absolute pressure measurements and measured values data transfer in digital format via RS-485 or 4-20 mA interface.

ZET 7012-A VER.3 digital pressure meter is intended for integration into various technological processes automated control systems.

Operating principles

of ZET 7012-A VER.3 digital pressure meter

Digital pressure meter ZET 7012-A-VER.3 consists of primary transducer and integrated measuring module.

The primary transducer converts the pressure value into analog signal. The measuring unit digitizes the signal from the converter and transmits the pressure value in a digital form via RS-485 interface by means of Modbus protocol  or via data transfer interface “Current loop” (4-20 mA). The membrane of the primary transducer is made of a flexible silicon plate.  This allows to perform inertia-free dynamic measurements with duration up to 1 ms. In contrast to metal membranes with glued bridge strain resistors, membranes of this type allow to register pressure change at the level of 0.00005 from the upper range limit.

The pressure meters are attached to the controlled object while the interface modules enabling data transfer are placed inside of electrical cabinets.

ZETLAB electrical cabinet is more compact than similar available analog products. Among ZETSENSOR modules advantages one should mention easy installation and de-installation of modules as well as power and signal transfer indication (which, in its turn, facilitates in-place diagnostics of the measuring system).

Pressure meters: contact points designation

for connection to 4-20 mA and RS-485 interface

To connect the pressure meter to the measuring line it is necessary to put the cables into the pressure meter package, remove upper lid and connect the cables to corresponding contact points. The table below shows contact points marking.

For connection to current output I+, I- and PWR contact points are used.
For connection to RS-485 PWR, D-, D+ and GND contact points are used.

Marking Designation
I- Current –
I+ Current +
PWR +(9…24) V
D- RS-485 line «B» or «DATA -»
D+ RS-485 line «A» or «DATA +»
Connecting pressure sensors 7X12 with indicator to measuring network

Measuring network diagram

of ZET 7012-A VER.3 digital pressure meter

Using digital pressure meters is especially convenient for establishing distributed measuring networks. Unlike normally used centralized measuring networks, there is no need to use “star-type” conection, which allows to reduce overall cable length. Since the data is transmitted in digital format, the are less requirements to data transfer channel, besides, one can use relatively inexpensive cables for the measuring network establishing.

In order to connect the measuring network to ZETLAB and ZETVIEW systems, one can use interface converter ZET 7070 (USB ↔ RS-485) or ZET 7076 (Ethernet ↔ RS-485). Using inner power supply module ZET 7070 one can connect up to 4 digital pressure meters to a single ZET 7070 module (and up to 60 digital pressure meters if external power supply module is used).

ZETLAB software enables connection of up to 1024 pressure meters to a single PC. The measuring networks can also be connected to any system using Modbus protocol via RS-485 interface.

Directive 2011/65/EU (ROHS, ROHS II)



Basic configuration

of ZET 7012-A VER.3 digital pressure meter

Basic configuration of digital family sensors

Digital pressure meter basic configuration includes:

  • Digital pressure meter ZET 7012-A-VER.3;
  • ZET 7001 measuring line coupling unit;
  • set of operational documentation.

Necessary measuring products

supplied upon request

Interface converter ZET 7076 Ethernet Wi-Fi RS-485
ZET 7076 interface converter
Ethernet Connection

Order form - If you want to place an order or to make a request regarding technical specifications of particular product, fill out the form below:

Data protection notification

Please note that the personal data provided by you is used exclusively for the purposes of fulfilling our contractual obligations, including, but not limited to: issuing invoices, delivery documents, documentation relating to customs clearance process, etc. We do not provide your personal data to any third party except for the purposes relating to our direct contractual obligations. Upon completion of order processing and expiry of the warranty period for the Products provided by our Company, we do not store or process any of your personal data. Please note, that our Company’s Confidential policy does not imply any advertising or marketing activities with the use of your personal data (including your Company name, address, your E-mail, phone number and other information provided by you with a view to placing an Order and organization of the Delivery).