ADGT DTU4 0 Series Manuale utente

GPRS/NB-IoT Data Loggers

DTU4x0

User Guide

Revision 2.01, May 2022

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 2 e-mail: [email protected]

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide (revision 2.01, May 17th, 2022)

This manual is targeted for users responsible for installing, configuring and technical maintaining the

DTU410, DTU420 data logger series (hereinafter referred to as DTU or data logger). The guide contains

information about the intended purpose, design, technical parameters and operating principles of the

device.

ADGT systems s.r.o. reserves the right, without any prior notice, to make changes to the user manual

related to the improvements in hardware and software, as well as to eliminating misprints and inaccuracies.

Safety Symbols Information

The following safety symbols are used in the document. Familiarize yourself with the symbols before

installing and operating the device:

WARNING!

Denotes a hazard. It calls attention to a procedure, which if not correctly performed or

adhered to, could result in injury or loss of life. Do not proceed until the warning note is fully

understood.

CAUTION!

Denotes a hazard. It calls attention to the operation of the device, which if not correctly

performed or adhered to, could result in damage or destruction of the product.

Do not proceed until the attention note is fully understood.

NOTE:

Denotes some information which could help the user when operating with the device.

ADGT systems s.r.o

Planichkova, 442/3,

162 00, Prague 6, Prague, Czech Republic

The present document is the property of ADGT systems s.r.o.

Printing is authorized exclusively for private usage.

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 3 e-mail: [email protected]

Safety Instructions

Do not use this product until you have read this User Guide and until you have a full knowledge of this

product mechanism, safety information and instructions.

CE WARNING!

•In a residential environment this product may cause radio interference. In such cases

users may be required to take adequate measures.

WARNING!

•Operating the data logger, including opening, repairing and testing, must be

performed only by qualified and properly trained personnel familiar with this device.

Input Voltage:

DTU4x0: DC Input voltage: 7-30VDC

DTU4x0-C: AC Input voltage: 100-240VAC, 50Hz/60Hz

Please note: The voltages beyond the operating range can cause damage and void

the warranty for this product.

•Do NOT remove the device cover for operating or servicing activities, if external power

supply is switched ON. Make sure to power OFF the external power supply before

opening the case cover. For safety reasons, after disconnecting the external power

supply, wait for 1 second before opening the case cover.

•Turn ON the external power supply, only after all the circuits are connected and the

data logger case cover is closed and securely screwed to the base of the case.

•The device (its antenna) should be installed at a minimum separation distance of

20 cm from people or animals.

•Do NOT use the device in explosive or hazardous environments.

•Do NOT expose your device to any extreme environment where the temperature or

humidity is high. Such exposure could result in damage to the device or fire. Use each

product within the rated range for ambient operating temperature, ambient operating

humidity, and storage temperature specified for that Product.

•Do NOT disassemble the device unless you are qualified as service personnel.

•Do NOT dispose electronic equipment as unsorted municipal waste. Please use a

separate collection facility or contact the supplier from which this instrument was

purchased.

DTU4x0 GPRS/NB-IoT Data Loggers 
User Guide. r. 2.01 | 2022-05-17 
 
 
Tel.:  +420 234 076 670 4    e-mail: [email protected] 
Contents 
Safety Symbols Information...............................................................................................................................2
Safety Instructions................................................................................................................................................3
1. Product Overview..............................................................................................................................................5
Product Description....................................................................................................................................................... 5
Technical Specifications................................................................................................................................................ 6
Appearance....................................................................................................................................................................... 8
DTU4x0 Interfaces and Wiring Diagrams.............................................................................................................10 
DTU4x0 Operating Modes.........................................................................................................................................13 
LED Indication................................................................................................................................................................14 
Collection and storage of information .................................................................................................................15 
Algorithm of data logger connection...................................................................................................................15 
SIM card operation ......................................................................................................................................................15 
Operating in NB-IoT network...................................................................................................................................15 
Backup battery power supply ..................................................................................................................................15 
2. Getting Started................................................................................................................................................ 16 
Preparing for Installation...........................................................................................................................................16 
Installation and Connection......................................................................................................................................17 
Firmware Update ..........................................................................................................................................................22 
 

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 5 e-mail: [email protected]

1. Product Overview

Product Description

DTU4x0 – a series of 11-channel mobile data loggers

designed for remote smart metering and monitoring

applications in utility industries.

Key Features:

•Automated data collection from pulse output

meters, meters with RS-232 & RS-485 ports

as well as from a wide range of sensors.

•Data storage in non-volatile memory.

•Data transfer to a remote server over GPRS or

NB-IoT network according to the schedule.

•Date and time regular automatic synchronization.

•Dual SIM for communication channel reservation.

•3.6V, 5V, 7.5V and 12V outputs for powering external sensors.

•Quick and easy device configuration: via PC as well as remotely using web interface.

•IOT24.eu cloud software for remote 24/7 access to data via a convenient web interface.

•Power supply: both external and autonomous from a backup replaceable 3.6 V battery to

provide data logger operation up to 4 years and above.

The base model range is represented by the following models:

Model

Network

Protocol

Power Supply

DTU410

GPRS

TCP

7-30 VDC + 13Ah D-type 3.6V backup battery

DTU420

LTE NB-IoT

TCP/UDP

7-30 VDC + 13Ah D-type 3.6V backup battery

Base models can be supplied with the set of

available options:

•Hardware – minor hardware changes.

•Assembly - indicate a replacement or

absence of battery, antenna or case.

Options are added to the name of the base model

in the following sequence:

Base

Model

–

hyphen

Hardware

options

dot

Assembly

options

Example of a modification name – DTU410-CG.S

Within each group of options, the letters go alpha-

betically. If the letters of the option group are not

present in the model’s name, then the next option

group takes its place. If no option is specified, then

we have the base model (see figure on the right).

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 6 e-mail: [email protected]

Technical Specifications

DTU410

DTU410-C

DTU420

DTU420-C

POWER SUPPLY

Main power supply source

7-30VDC

100-240VAC

50Hz/60Hz

7-30VDC

100-240VAC

50Hz/60Hz

Max. power consumption

5W1

1W1

Connector

2-pin screw terminal block, pitch – see DTU4x0 power supply terminal block contacts

Backup power supply

source

Li-SOCL2 D-type ER34615M battery, 3.6V 13 000 mAh - for base models.

For optional modifications, see available options

Current consumption in a

sleep mode (when

10 µA (at 2 Hz polling rate), 40 µA (at 20 Hz polling rate),

150 µA (at 100 Hz polling rate)2

Current consumption in

data transfer mode (when

150 mA2

36 mA2

Battery life

Up to 4 years3

Up to 8 years3

CELLULAR NETWORK PARAMETERS

Module frequency range

GSM/GPRS 850/900/1800/1900

NB-IoT B1/B2/B3/B5/B8/B12/B13/B17/B18

B19/B20/B25/B26/B28/B66/B70/B71

Max. power output

33dBm (850/900 MHz)

30dBm (1800/1900 MHz)

23dBm

Data transmission

technology

GPRS class: configured 8/10/auto (up to 12)

NB-IoT Cat NB2

Data transmission rate

up to 85.6 kbps (DL/UL)

100 kbps (DL) / 150 kbps (UL)

Protocol Stacks

IPv4 TCP

IO PARAMETERS

GPIOs (P1-P4)

x4: operating modes - pulse counter; high-frequency (HF) pulse counter (up to 5kHz);

two-state signal input; leakage sensor; opening sensor, engine hours counter;

1-Wire; current loop 4-20mA sensor; temperature sensor.

Counting inputs (P5-P10)

x6: operating modes – pulse counter, HF pulse counter (up to 5kHz);

two-state signal input; leakage sensor, temperature sensor, engine hours counter.

Additional Input (P11)

x1: type - pulse counter, leakage sensor (S+, S- contacts)

Pulse input polling

frequency3

2Hz: pulse duration – more than 500ms, max. pulse frequency at the input – 1Hz;

20Hz (default): pulse duration – more than 50ms, max. pulse frequency at the input – 10Hz;

100Hz: pulse duration – more than 10ms, max. pulse frequency at the input – 50Hz

Input conditions

closed, open, short circuit, break

Connector type

screw terminal block, pitch - 5.0 mm

Unit of measured value

pulse, ohms, mA, °C, ppm

Pulse counting range

0 - 232

Relative error of pulse-

counting (per 10000 pulses)

±0,01%

Without taking into account the load at the 12V and 7.5V power outputs.

If all inputs are configured as counting and the 12V and 7.5V power outputs are turned off.

When operating at a temperature not higher than 0°C, with a stable communication signal, in the connection mode 3 times

amonth. Battery service life depends on a number of factors, including operating temperature, type of connection and frequency

of connections. ATTENTION! Increasing the polling frequency results in a shorter battery life.

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 7 e-mail: [email protected]

DTU410

DTU410-C

DTU420

DTU420-C

Input resistance

measurement range

0 – 100 kOhm

The line is working properly: open state -3-100 kOhm, closed state - 1-3 kOhm

The line is faulty: line is broken - more than 10 kOhm, short circuit - 0-1 kOhm

4-20 mA

current loop mode

Accuracy: 2% (t=22ºC), max - 5% (in the operating temperature range).

Warm-up time - 60 sec

OTHER PORTS & CONNECTORS

Serial ports

1 x RS-232: non-isolated, Rx, Tx, GND signals. Default speed -19200 bps (8N1)

1 x RS-485: non-isolated, A+, B- signals. Default speed - 19200 bps (8N1).

Load capacity – up to 32-unit load (UL) devices. 1/2UL = 24kOm.

Maximum communication range - up to 1000 m

Power outputs

2 x 3.6V (ENABLED by default)4

Software configurable outputs:

1 x 5V (DISABLED by default). Enabled when the ‘1-Wire’ input is activated (DS18B20)

1 x 7.5V (DISABLED by default). Enabled when the ‘Current loop’ input is activated.

1 x 12V (DISABLED by default). Enabled when the ‘Current loop"’ input is activated.

DTU opening sensor

1 x button

SIM

2 x mini-SIM (2FF)

USB

1 x mini-USB B

Antenna/Connector

DTU4x0: internal flexible antenna 2-5.2dBi on the u.Fl connector + SMA-f connector;

DTU4x0.F: u.Fl connector + SMA-f connector

DEFAULT SETTINGS

Data slice saving

once per hour

Readings transfer to server

once/day, from 08.00 to 09.00

IOT24.eu server

IP address/server port5

iot24.eu:10002 (GSM)

139.162.147.141:10003 (NB-IoT)

Server connection

on schedule; when pressing configuration button (S2);

on event at facility (short circuit, break); on reboot

Time synchronization

each connection to server

Data Storage

up to 90 000 entries from 10 meters

GENERAL SETTINGS

Dimensions (L x W x H)

149 x 121 x 87 mm

Weight

no more than 530 g

Enclosure

Plastic, protection class – IP65

Archive depth

10 years (hourly logging)

Data storage in non-

volatile memory

up to 90 000 entries from 10 meters

Time accuracy

5 sec/day

Average service life

10 years

OPERATING CONDITIONS

Operating temperature

-20...+50°C6

Relative air humidity

up to 100% at 25°C

Atmospheric pressure

84-106.7 kPa (630-800 mmHg)

3.6V power is supplied programmatically, by pulses, with an input polling frequency.

For GPRS devices, use a domain name to connect to the server. For NB-IoT devices, use only the IP address.

When operating from battery at temperatures below 0°C, the battery life could be shorter.

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 8 e-mail: [email protected]

Appearance

DTU4x0 is a single-board microcontroller device in a sealed plastic IP65 case.

DTU410, DTU420 (7-30 VDC power supply)

DTU410-C, DTU420-C (100-240 VAC power supply)

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 9 e-mail: [email protected]

DTU4x0 terminal block contacts

Connector

Contact

Description

Upper Terminal blocks

Terminal block

J8 (2-pin)7

S+

Positive input for connecting the leakage sensor

P11

S-

Counting input / Negative input for connecting the leakage sensor

Terminal block

J9 (3-pin)7

RS-485

A+ signal, RS-485 line

B- signal, RS-485 line

Built-in terminal resistor output (in order to commute terminal resistor,

T-output should be connected to the B- output of RS-485 port)

Terminal block

J18 (2-pin)7

RS-232

GND

Ground

RS-232 interface TX data output

Terminal block

J3 (2-pin)7

RS-232 interface RX data input

INPUTS

Universal counting/signal input 5

Terminal block

J4 (3-pin)7

Universal counting/signal input 6

Universal counting/signal input 7

Universal counting/signal input 8

Terminal block

J5 (3-pin)7

Universal counting/signal input 9

P10

Universal counting/signal input 10

Vout

3.6V

3.6V power output8

Lower Terminal blocks

Terminal block

J2 (3-pin)7

GND

Ground

GPIO

Universal GPIO 1

Universal GPIO 2

Terminal block

J1 (2-pin)7

Universal GPIO 3

Universal GPIO 4

Terminal block

J14 (2-pin)7

Vout

GND

Ground

3.6V

3.6V power output8

Terminal

block J15

(3-pin)7

5V power output (software configurable)

7.5V

7.5V power output (software configurable)

12V

12V power output (software configurable)

DTU4x0 power supply terminal block contacts

Model

Connector

Contact

Description

7-30 VDC power terminal block

DTU410,

DTU420

Terminal block

J13 (2-pin)7

7-30

VDC

7-30 VDC positive input

–

7-30 VDC negative input

100-240 VAC power terminal block

DTU410-C,

DTU420-C

Terminal block

J12 (2-pin)9

100-240

VAC

Neutral input of power supply voltage 100-240 VAC

Line input of power supply voltage 100-240 VAC

3.6V Battery power supply terminal block

All DTU4x0

models

Terminal block

J10 (2-pin)10

BAT

–

Negative battery terminal

Positive battery terminal

Connector type is a screw terminal block (pitch - 5.0 mm).

3.6V power is supplied programmatically, by pulses, with an input polling frequency.

Connector type is a screw terminal block (pitch - 5.08 mm).

Connector type is a screw terminal block (pitch - 3.81 mm).

DTU4x0 GPRS/NB-IoT Data Loggers

User Guide. r. 2.01 | 2022-05-17

Tel.: +420 234 076 670 10 e-mail: [email protected]

DTU4x0 Interfaces and Wiring Diagrams

GPIO & Universal Inputs

DTU4x0 data loggers have 11 universal counting inputs for connecting a wide range of meters and sensors:

•P1-P4 – independent GPIO lines

•P5-P11 – universal counting inputs.

Inputs can be configured via the web interface of https://iot24.eu cloud software as well as using DTU

Configuration Tool software. Types of devices available for connection to P1-P11 inputs are given below:

Type of device/Input Type

P10

P11

Pulse counter



•

High-frequency pulse counter

•

–

Signal (two-state) input

•

–

Leakage sensor

•



ADGT temperature sensor

•

–

Engine hours sensor

•

–

DTU case opening sensor

•

–

1-Wire

•

–

Current loop (4-20mA) sensor

•

–

•- types of devices supported for this input

✓- the type of device configured on this input by default

−- types of devices that are not supported for this input

Connecting meters

The following types of inputs can be configured to connect meters:

•Counting/Pulse counter – the type of input used when connecting pulse reed switch meters

to data logger, as well as meters with NAMUR output. The inputs are configured to connect

meters with polling frequency at outputs up to 100 Hz.

•High-frequency meter (or HF pulse meter) – the type of input used when connecting pulse

meters with an input polling frequency from 100 Hz and up to 5 kHz to data logger.

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