Sintrol DUMO EX Manual de usuario

Sintrol DUMO EX

Manual

Version 1.2.3

DUMO EX EX User Manual 2

Table of Contents

1INTRODUCTION.......................................................................................3

1.1 Safety......................................................................................................... 3

1.2 Product overview....................................................................................... 4

1.3 How does it work? ..................................................................................... 4

2INSTALLATION.........................................................................................5

2.1 Selecting the installation location .............................................................. 5

3WIRING ..................................................................................................6

4TECHNICAL SPECIFICATION ......................................................................8

5DIMENSIONS......................................................................................... 10

6OPERATION .......................................................................................... 10

6.1 The alarm threshold factory setting values............................................... 11

7ADJUST PARAMETERS............................................................................ 12

7.1 Signal averaging time ............................................................................... 12

7.2 Alarm level settings.................................................................................. 12

7.3 Alarm delay time...................................................................................... 12

7.4 Alarm hysteresis time............................................................................... 12

7.5 mA output signal...................................................................................... 13

7.6 Calibration of measuring.......................................................................... 13

8AUTO-SETUP......................................................................................... 14

8.1 How to do the auto-setup? ...................................................................... 14

9MAINTENANCE...................................................................................... 15

10 TROUBLESHOOTING .............................................................................. 15

10.1 No output signal ................................................................................. 15

10.2 No response after auto-setup............................................................. 15

11 Appendix A: Sintrol PC software............................................................. 16

11.1 DustTool............................................................................................. 16

Preview .............................................................................................. 16

11.2 DustLog .............................................................................................. 19

DUMO EX EX User Manual 3

1INTRODUCTION

This manual describes how to install and use SINTROL’s DUMO EX dust monitor.

Sintrol shall not be liable for any loss or damage whatsoever arising from use of

any information or details therein, or omission or error in this manual, or any

misuse of the product.

The instrument can be accessed by utilizing the DustTool Software.

The basic functionality of DustTool is to change the factory settings according to

individual needs of the process.

Such functions for DUMO EX are for example:

•Perform the auto-setup according to process typical dust levels.

•Change the Alarm Limits and the logic of signals.

•Set 4 - 20mA output levels

The Software can be downloaded free of charge under the Sintrol web-site

http://www.sintrolproducts.com

1.1 Safety

DUMO EX ambient dust monitor is virtually maintenance free. Under no

circumstances should the user attempt to replace any components or the PC

board. If, for some reason the monitor fails to operate, contact your local

distributor or the manufacturer.

DUMO EX is designed for explosive environments fulfilling following ATEX and EX

requirements. The sensor can be installed in EX and Atex zones 22.

IECEx VTT 13.0012X

Ex tc IIIB T 80°C Dc

Atex 22 VTT 13 ATEX 051X

CE II 3 D

Ex tc IIIB T80°CDc

Take appropriate precautions when installing the monitor:

Unless the process conditions are known to be entirely safe, suitable

precautions must be taken before any entry is made into the duct for

installation or maintenance purposes.

DUMO EX EX User Manual 4

1.2 Product overview

The DUMO EX Dust monitor is a microprocessor-based, self-adjusting device,

equipped with two independent and fully adjustable alarm signal and isolated 4 –

20 mA output loop.

The device is developed for continuous dust monitoring in industrial environment.

It is a compact unit with the sensor and control electronics built into one IP20

enclosure, which has been specifically designed for easy installation and operation.

1.3 How does it work?

The DUMO EX uses Sintrol’s proven and reliable inductive electrification

technology where the interaction of particles with the sensor rod causes a small

electrical charge to pass between the particulate and sensor.

It is this small electric charge that provides the signal monitored by the electronics,

the signal generated is proportional to the ambient dust level even if particles

accumulate on the sensor. Experience has shown that this method of monitoring

dust level in ambient air offers accurate results with minimum maintenance.

Schematic diagram of the measurement principle is presented in Figure 1.

DUMO EX EX User Manual 5

Figure 1 DUMO structure

2INSTALLATION

2.1 Selecting the installation location

DUMO EX should be located so that measured data clearly represents dust

concentration in a selected work environment. Because of this the user should

always think carefully what he wants to monitor and where the device should be

placed.

For example DUMO EX can be placed close to the cement mill if the user is

interested in the variation of the amount of dust particles during the process. If the

user is interested in dust concentration level in general, then DUMO EX should be

located in a more “peaceful”place, some distance from the process.

There are still certain basic requirements for DUMO EX monitoring environment

which one must take into account when preparing the measurements.

1. Temperature in measurement environment should be between -20 C and

+40 C. The more stable temperature, the better.

2. Considerable humidity or condensed water is likely to drastically effect

measurement.

DUMO EX EX User Manual 6

3WIRING

The DUMO EX comes with five meter power and signal cable. There are 12 wires in

the same cable, two wires for VDC power source, two for alarm signals, two for mA

loop and one for automatic setup signal. Remaining wires are left for digital

communication with Sintrol Dustlog software.

Connect the VDC power supply to pink (+) and GND to gray (-) wires. Blue and red

wires are for alarm signals and they give the same voltage levels as power input

voltage, when the alarm latches to high state.

PCB pin Wire colour Signal name

1 BLUE Alarm signal 1

2 RED Alarm signal 2

3 BLACK 4 –20 mA +

4 YELLOW 4 –20 mA -

5 GRAY V- (GND)

6 PINK V+ (VDC)

7 GREEN Automatic setup

8 BROWN RS 485 D+

9 WHITE RS 485 D-

10 BLUE/RED USB DM

11 GRAY/PINK USB DP

12 VIOLET USB VBUS

Table 1 Wiring and signals

For DUMO EX it is extremely important that it is grounded properly. The

recommended grounding is presented below where DUMO EX cable shield is

connected to power supply GND which is grounded properly to the stable ground.

DUMO EX EX User Manual 7

Figure 2 DUMO grounding

DUMO EX can be powered by using only USB connection for the purpose of

accessing and adjusting parameters with appropriate Sintrol PC software. More

information about parameter adjustment can be found in section 7 of this manual.

DUMO EX EX User Manual 8

4TECHNICAL SPECIFICATION

Product Name DUMO EX

Measurement Objects Solid particles in ambient air

Particle Size 0.3 µm or larger

Measurement Range From 0.1 mg/m³

Measurement Principle Inductive Electrification

Protection Category IP20

Power Supply 24 VDC

Power Consumption 3 W

Cable Connection 5 meter cable, 12 wires

Output Signals

·Two output signals (100 –280 mA)

·Isolated 4 - 20 mA output loop

Communication Interface

·Serial communication RS-485

·USB

·Radio frequency (RF) (optional)

Communication Protocol

·Modbus RTU (RS-485)

·SNT network (USB, RF and RS-485)

Alarm Settings

·Set automatically by auto-setup based on

average measured ambient air dust level:

5 times and 20 times of reference dust

level.

·User selectable

Signal Averaging Time

•Default at factory, 100 s

·Adjustable from 0 –6000 s

Alarm Delay Time •Default at factory, 30 s

DUMO EX EX User Manual 9

•

Adjustable from 0

–

60 000

Alarm Hysteresis Time

•Default at factory, 0s

•Adjustable from 0 –25 s

Ambient Conditions

Starting Temperature

-20...+40 °C

Running Temperature

-20...+40 °C

Humidity Max 95 % RH (non-condensing)

Materials and Weight

Enclosure / casing Aluminum, Stainless steel (AISI 316L)

Weight approx. 3 kg

Table 2 Technical specification

DUMO EX EX User Manual 10

5DIMENSIONS

Figure 3 Dimensions

This instrument conforms to the following standards

Product standard -

electrical equipment for

measurement, control and

laboratory use –

EMC requirements

Reference standard

IEC 61326-1:2005 (First Edition)

6OPERATION

DUMO EX measures the dust level in ambient air by using inductive electrification

technology which is based on AC measurement of moving particles which carry a

charge.

There are two alarm signal outputs to indicate two different alarm conditions, and

4 –20 mA-output signal loop indicating dust level.

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