ZET 7123 digital meteorological sensor

Humidity, pressure and temperature measurements
CAN 2.0 interface
Ready for operation

POR (price on request)

* Minimum order value: from 7 700 USD

Specifications

of ZET 7123 digital meteorological sensor

Meteorological data
Measured physical values	relative humidity atmospheric pressure temperature
Relative humidity measurement range	from 0 up to 100 %
Absolute tolerance of relative humidity measuremnts	±3 % in the range 0…80 ±5 % in the range 80…100
Atmospheric pressure measurement range	from 50 up to 115 kPa
Pressure measurement units	kPa, bar, atm, mm Hg, kgf/cm², psi
Atmospheric pressure measurement absolute error	±1 kPa
Temperature measurement range	from -40 up to +85 °C
Temperature measurement units	°C, °F
Absolute tolerance of pressure measurements	±0,4 °C in the range -10…+85 °C, ±1 °C in the range -40…-10 °C
Operability control in real-time mode	synchronization quality data quality
Measurement reliability control	sensing element integrity control
Technical specifications
Data refresh rate	1 Hz
Data transfer interface	CAN 2.0
Exchange speed	100, 300, 1000 kb/sec
Operational specifications
Dimensions	71×39×17 mm
Weight	35 g
Device power	from 9 up to 24 V
Consumed power	0,4 W
Reverse polarity protection	yes
Operational temperature range	from -40 to +85 °C
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

Available product versions
Standard: laboratory design in plactic package (green color).
Industrial*: standard design module placed inside of leak-proof package (transparent cover)
*Option

Advantages

of ZET 7123 digital meteorological sensor

No adjustment required

The characteristics are saved in the measuring module memory

Measurement results

Measurements results are represented in digital form

Compact dimensions

Compact multi-functional meteorological station

Reliability

Stable characteristics and high reliability throughout operational period

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

DIGITAL METEOROLOGICAL SENSORS MEET THE REQUIREMENTS OF DIRECTIVE 2011/65/EU (ROHS, ROHS II) CONCERNING LIMITATION TO USE HAZARD SUBSTANCES (PB, HG, CD, CR(VI)) IN ELECTRICAL AND ELECTRONIC EQUIPMENT; THEY ARE MANUFACTURED USING LEAD-FREE METHOD, IN COMPLIANCE WITH THE EUROPEAN COMMUNITY REQUIREMENTS

Operating principles

of ZET 7123 meteorological sensor

Digital meteorological sensor ZET 7123 is a measuring unit with two in-built sensors, one of which is used for measuring relative humidity and temperature, and the other one – for atmospheric pressure measuring.

ZET 7123 meteorological sensor measuring unit converts signal from the sensing elements to temperature, humidity, and pressure values. The obtained values are transmitted via CAN interface and displayed in the measurement units set by the user.

The sensors are fixed on the controlled object while the interface units ensuring information transmission are placed inside of electrical cabinet.

ZETSENSOR elecrical cabinet is more compact than available analog versions. ZETSENSOR digital modules are easy to install and de-install, they also have power supply and data transfer digital indication, which makes it easy to perform in-place diagnostics of the system.

Measurement results

of ZET 7123 digital meteorological sensors

grafik_vlazhnost_7123-705x382 — 7123 – humidity diagram

grafik_davlenie_7123-705x378 — 7123 pressure diagram

grafik_temperatura_7123-705x381 — 7123 temperature diagram

Connection diagrams

of ZET 7123 digital meteorological sensor

Connection to a PC can be performed via USB, Ethernet, Wi-Fi, GSM or a radio channel (see the Clause “Interface converters”). The interface converters delivery package includes ZETLAB software.

Since the signal is processed right at the measurement point, it considerably increases the measurement accuracy, besides, it is possible to use less expensive cable for signal transmission.

Specialized calculator

for calculating the required type of cables in the construction of measuring lines

Metrological self-monitoring

of ZET 7123 digital meteorological sensor

Digital meteorological sensor ZET 7123 have metrological diagnostic self-monitoring function — in particular, auto-check of sensor serviceability while being in operation. Based on positive results of metrological self-monitoring, it is possible to increase inter-verification interval without standard verification procedure.

There has been developed a special software for metrological self-monitoring of ZETSENSOR digital transducers in automatic mode.

Main window of “Metrological self-monitoring ZET 7XXX” software is shown in the figure. The “Metrological self-monitoring” tab allows user to select the type of device, test, control measurements routine, and to receive the self-monitor results.

Test impact types

AC - alternating signal

FR: «Required frequency value»: «Frequency tolerance» – alternating signal frequency;

AM: «Required signal amplitude value»: «Signal amplitude tolerance» – alternating signal amplitude;

OF: «Generated signal bias»: «Generated signal bias tolerance» – generated signal bias;

TM: «Signal analysis time» – signal control time (minimal signal analysis time for transient processes or long-time tests)

Example:
AC;FR:0.5:0.01;AM:0.4:0.002;OF:0.1:0.0001;TM:5 –
Alternating signal with frequency: 0.5 ± 0.01 Hz, amplitude: 0.4 ± 0.002 V, bias: 0.1 ± 0.0001 V, minimal signal control time – 5 s.

DC - constant signal

LE: «Required signal level»: «Signal level tolerance» – generated signal level.

TM: «Signal analysis time» – control signal time (signal analysis minimal time for transient and long-time processes tests)

Example:
DC;LE:0.5:0.001;TM:5 –
constant signal: 0.5 ± 0.001 V, minimal signal control time – 5 s.

ST1 - stepwise change

AM: «Minimal value»: «Maximum value» – change range.

TM: «Signal setting time» – time before signal control start

Example:
ST1;AM:100:200;TM:5 –
stepwise change: for 100..200 units, minimal signal control time – 5 s.

ST2 - stepwise change

MD: «Minimal change»: «Maximum change» – change amplitude.

TM: «Signal setting time» – time before signal control start

Example:
ST2;MD:10:10.5;TM:6 –
stepwise change: for 10..10.5 units in modulus, minimal signal control time – 6 s.

PPS - Pulse-per-second signal

SP: «Acceptable counts deviation» – amount of counts before or after start of a second.

Level change to be checked one time in a second.

Example:
PPS;SP:2 –
the change should take place in the beginning of a second, 2 counts.

Device type is selected from the dropdown list. To select the device type you have to left-click the element, and to select the required device to be checked from the pop-up list.

Selector is used to choose the test. To change test number you have to left-click the number and to set the required value with the scroll wheel. If self-check is run, selector remains inactive till the moment the user stops the project operation or till the self-check procedure is finished.
There is a button to activate and stop the measurements. During diagnostics the button is green, and grey when stopped.

Indicator serves as a timer showing how much time is left before the current test is finished. It takes the count after any test is begun. Test results are shown in the log.

Basic configuration

of ZET 7123 digital meteorological sensor

Digital meteorological sensor ZET 7123 delivery scope includes:

ZET 7123 digital meteorological sensor;
DIN-rail mounting panel for plastic modules 71×39 mm;
set of operational documentation.

Necessary measuring products

supplied upon request

ZET 7174 interface converter
USB Connection

ZET 7176 interface converter
Ethernet Connection

ZET 7173 off-line recorder
Off-line operation mode

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).

ZET 7123 digital meteorological sensor

Specifications

Available product versions

Advantages

No adjustment required

Measurement results

Compact dimensions

Reliability

Operating principles

Measurement results

7123 – humidity diagram

7123 pressure diagram

7123 temperature diagram

Connection diagrams

Specialized calculator

Metrological self-monitoring

Test impact types

Basic configuration

Necessary measuring products

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