Digital gauge pressure ZET 7012-I-VER.3

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

From 195 USD

* 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-I VER.3 digital gauge pressure

Metrological specifications
Measured value overpressure
Measurement tolerance 0,1% 0,2%
Upper limit of pressure measurement range 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; 16 MPa; 25 MPa; 40 MPa; 60 MPa; 80 MPa; 100 MPa; 160 MPa
Sensitivity threshold (minimum difference between sequentially measured values) 1 Pa (for upper measurement limit: 0,1; 0,16; 0,25; 0,4; 0,6; 1; 1,6; 2,5; 4; 6; 10; 16; 25; 40 MPa)
10 Pa (for upper measurement limit: 60; 80; 100; 160 MPa)
Absolute measurement error (of the upper range limit) 0,1 % 0,2 %
Relative measurement error (of the measured value) 0,1 %
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 b/s
Parity control 0 – no control; 1 – control (parity, ODD)
Exchange protocol Modbus RTU
Analog interface*
Current signal 4-20 mA
Load resistance 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 +100 °C
Operation environment liquids and gases non-aggressive to titanium alloys and stainless steels
Design versions Standard (IP63 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 0,5 kV; signal 0,25 kV
IEC 61000-4-5, Surge 500 V



of ZET 7012-I VER.3 digital gauge pressure

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

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

  • petroleum industry;
  • metal industry;
  • construction industry;
  • chemical industry;
  • food processing industry;
  • municipal infrastructure;
  • automobile transportation and shipping facilities.

Operating principles

of ZET 7012-I VER.3 digital gauge pressure

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

The primary transducer converts the pressure value into analog signal. The measuring unit digitizes the signal received 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 silicon plate. The strain resistor circuit (bridge connection) is implemented on the basis of the “silicon on sapphire” technology (SOS). This allows to perform inertia-free dynamic measurements in the range up to 1,000 Hz. In contrast to metal membranes with glued bridge strain resistors, SOS membranes enable registering pressure change at the level of 0.00001 from the upper range limit. Sensitivity of the electronic amplifier is 15 nV reduced to the input.

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

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

To connect the pressure meter to the measuring network one should put the cables inside of the pressure meter package, remove upper cover and connect the cables to the contact points in accordance with the scheme. The table below shows contact points designation.

For connection via current output use I+, I- and PWR contact points.
For connection via RS-485 use the PWR, D-, D+ and GND contact points.

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 ZET 7X12 to measuring network

Measuring network diagram

based on ZET 7012-I VER.3 digital gauge pressure meters

Using digital sensors is especially convenient when 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 sensors 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-I VER.3 digital gauge pressure

Basic configuration of a meteorological sensor

Digital gauge pressure meter basic configuration includes:

  • Digital gauge pressure ZET 7012-I-VER.3;
  • ZET 7002 measuring line branch;
  • 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

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