Presys DMY-2015 User manual

Digital Multi-Point Indicator
DMY-2015
Technical Manual
R
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EC Declaration of Conformity
We declare under our sole responsability that the CE marked products, are in conformity
with the essential requirements of the following EC Directives when installed in
accordance with the installation instructions contained in the product documentation:
Series
DMY-2015
Description
Digital Mult-Point Indicator
LVD
Low Voltage Directive
2014/35/EC of the European Parliament and of the Council of 12 December 2006 on
the harmonization of the laws of Member States relating to Electrical Equipment
designed for use within certain voltage limits.
EN 61010-1:2011
Safety requirements for electrical equipment for measurement, control and laboratory
use
EN 61010-2:010
Safety requirements for electrical equipment for measurement, control and laboratory
use - Part 2-010: Particular requirements for laboratory equipment for the heating of
Materials.
EMC directive
2004/108/EC of the European Parliament and of the Council of 15 December 2004
on the approximation of the laws of the Member States relating to electromagnetic
compatibility and repealing Directive 89/336/EEC
EN 61326-1:2003
Electrical equipment for measurement, control and laboratory use - EMC requirements
São Paulo, 8 September 2017
Vinicius José Gomes Nunes
Antonio Rafael Sito Antunes
CEO
Engineering Manager
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Presys Instruments DMY - 2015
EM0068-01
TABLE OF CONTENTS
Page
1.0 - Introduction...................................................................................... 1
1.1 - Description...................................................................................... 1
1.2 - Order Code..................................................................................... 2
1.3 - Technical Specifications.................................................................. 3
2.0 - Installation........................................................................................ 6
2.1 - Mechanical Installation.................................................................... 6
2.2 - Electrical Installation........................................................................ 6
2.3 - Process Input Signal Connection..................................................... 7
2.3.1 - Thermocouple Input.................................................................. 7
2.3.2 - RTD Input.................................................................................. 9
2.3.3 - Milliampere Input....................................................................... 10
2.3.4 - Volt Input................................................................................... 11
2.3.5 - Connection for Indicators with different input types................... 12
2.4 - Alarm output connection.................................................................. 13
2.5 - Connection diagrams....................................................................... 14
2.5.1 - Indicators with 12 thermocouples, current or voltage inputs
and their combinations...................................................................... 14
2.5.2 - Indicators with 8 RTD inputs...................................................... 15
2.5.3 - Indicators with 6 thermocouples, current or voltage inputs
and 4 RTD inputs.............................................................................. 16
2.6 - Communication............................................................................... 17
2.7 - Engineering units............................................................................. 17
3.0 - Operation.......................................................................................... 18
3.1 - Normal Operation............................................................................ 18
3.2 - Configuration................................................................................... 18
4.0 - Maintenance..................................................................................... 31
4.1 - Indicator Hardware.......................................................................... 31
4.2 - Snubber use for relays.................................................................... 32
4.3 - Optional module connection............................................................ 33
4.4 - Calibration....................................................................................... 34
4.5 - Hardware maintenance instructions................................................. 38
4.6 - List of components.......................................................................... 40
4.7 - List of recommended spare components......................................... 43
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Introduction
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1.0 - Introduction
1.1 - Description
PRESYS Digital Multi-Point Indicator DMY-2015 is a microprocessor-based
instrument with up to 12 inputs for monitoring process variables found in industrial
plants, such as, flow, level etc., and totalization of voltage and current linear inputs. It
has non-volatile internal memory (E2PROM) to store calibration values. Its accuracy
is warranted by autocalibration techniques based on a high thermal stability voltage
reference.
It can communicate with computers by means of an optional communication
module RS-232 or RS-422/485.
The Indicator presents specific models with 12 thermocouples or 8 RTD inputs
for the monitoring of temperature, and 12 current (mA) or 12 voltage (V) linear signal
inputs. There are also available models with two different types of input.
Thermocouples and RTD inputs are linearized automatically by tables stored in the
EPROM memory.
The totalization is performed independently for each channel of up to 8 linear
inputs (mA current and V voltage), configured together with the number of decimals.
The totalization counts do not decrease for signals under the zero scale defined by
the user, and Reset can be applied to the totalization by means of the Indicator front-
panel keys.
All configuration data can be protected by password and are stored in non-
volatile memory in case of an external power failure.
According to modularity design concept, the Indicator accepts up to two output
alarm modules. The types of output are: SPDT relay and open collector voltage.
.
Fig. 1 - DMY - 2015 Indicator front panel
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Introduction
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It accepts 90 to 240VAC or 130 to 340VDC (with any polarity) power supply.
The equipment has an extruded aluminum case which avoids electrical noise,
electromagnetic interference, radiofrequency interference, etc. and its robust
construction makes it tough enough for the most hostile environment.
The front panel has a high visibility display configurable up to 4 digits which
can show the process variable of each channel or a set of selected channels in the
scan mode. During configuration, the display shows mnemonics and parameter
values. The Indicator also presents another two-digit display for identification of the
channel viewed. The leds can be used as a visual indication of alarm for each
channel. The alarm outputs can be configured, independently, to operate with
retention, demanding the operator acknowledge by means of the front panel keys in
order to deactivate them after the process variable returns to normal condition.
1.2 - Order Code
DMY - 2015 - ___ - ___ - ___ - ___ - ___ - ___
A B C D E F
Field A Inputs
0 12 thermocouple inputs
1 8 RTD inputs
2 6 thermocouple and 4 RTD inputs
3 12 current (mA) inputs
4 12 voltage (V) inputs
5 6 thermocouple and 6 current (mA) inputs
6 6 thermocouple and 6 voltage (V) inputs
7 6 current (mA) and 6 voltage (V) inputs
8 6 current (mA) and 4 RTD inputs
9 6 voltage (V) and 4 RTD inputs
Field B Output 1
0 Not used
1 SPDT relay
2 Open collector voltage
Field C Output 2
Same code of output 1
Field D Power Supply
1 90 to 240VCA or 130 to 340VDC (any polarity)
2 24VDC
3 12VDC
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Field E Communication
0 Not used
1 RS-232
2 RS-485
3 RS-422
Field F Case Protection Grade
0 General usage, protected place
1 Front aspersion-proof
2 Weather-proof
Note 1 - The indication, relay usage as alarms and alarm points are, among
other things, items that the user can program through a front key (if wanted, specify
these information so that all the configuration can be made by PRESYS).
Note 2 - Hardware and software features are available under previous consult.
Code Example:
1) DMY - 2015 - 0 - 1 - 1 - 1 - 0 - 0
This code defines a DMY - 2015 Indicator for 12 thermocouple inputs with two
SPDT relays which can be used as high and low alarm, 90 to 240VAC or 130 to
340VDC electric power supply, protected field usage.
1.3 - Technical Specifications
Inputs:
Inputs for thermocouple (J, K, T, E, R, S, under ITS - 90).
Inputs for Pt - 100 RTD under DIN 43760.
Inputs for 4 to 20mA. 250input impedance.
Inputs for 1 to 5VDC. Input impedance above 10M.
Table 1 shows the temperature ranges for thermocouples and RTD
and the resolution for linear input sensors.
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Introduction
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Input sensor Measuring Range limits
Thermocouple lower
limit
F
higher
limit
F
lower
limit
C
higher
limit
C
Type J -184.0 1886.0 -120.0 1030.0
Type K -346 2498 -210 1370
Type T -418 752 -250 400
Type E -148.0 1436.0 -100.0 780.0
Type R -58 3200 -50 1760
Type S -58 3200 -50 1760
RTD
Pt-100 2 or 3 wires -346.0 1256.0 -210.0 680.0*
Linear Range Resolution
Voltage 0 to 5V
250V
Current 0 to 20mA
1A
(*) includes wire resistance
Table 1 - Measuring ranges for input sensors
Outputs:
SPDT relays for alarm rated 3A 220VCA, or up to 10A 220VCA under
order, In this case alarm module is not plugged through a connector,
but connected to a base board. It is possible to use up to 2 alarm
modules.
Logic signal, open collector transistor, 24VDC, 40mA max. with
isolation.
Serial Communication:
RS-232 or RS-422/485, with 50VDC isolation, as an optional module
for connection in CPU board.
Indication:
Standard indication in -999 to 9999 range.
Totalization:
Totalization of up to 8 channels for linear inputs (mA current and V
voltage) in 0 to 9999 range, configured with decimal point.
Configuration:
By front panel push-buttons.
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Sampling rate:
480ms sampling rate, for indication of inputs in -999 to 9999 range.
The display is updated each second.
Accuracy:
0.1 % of full scale for TC, RTD, mA, VDC input.
Linearization:
0.1 C for RTD and 0.2 C for TC.
Square root extraction:
0.5 % of reading, for input above 10 % of span.
Programmable "Cut - off" from 0 to 5 %.
Cold junction compensation:
2.0 C at range from 0 to 50 °C ambient temperature.
Thermal stability:
0.005 % / C of span with reference to 25 C ambient temperature.
Power supply:
Universal 90 to 240 VAC or 130 to 340VDC (any polarity), 10W
nominal; 24 VDC, 12 VDC and other values are optional.
Operating ambient:
0 to 50 °C temperature and 90 % maximum relative humidity.
Dimensions:
1/4 DIN (96 X 96 mm) with 162 mm depth, panel cut of 92 X 92 mm.
Weight:
0.7 kg approx.
Warranty:
One-year warranty.
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Installation
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2.0 - Installation
2.1 - Mechanical Installation
DMY-2015 Indicator front panel has 1/4 DIN size (96 X 96 mm).
It is fixed by the rails which press it against the back side of the panel.
After preparing a 92 X 92 mm cut in the panel, remove the rails from the
Indicator and slide its rear through the cut until its front reaches the panel. Place the
rails again in the Indicator from the back of the panel and tighten the screws as
shown in figure 2.
Fig. 2 - Dimensional drawing, panel cutout and side view
2.2 - Electrical Installation
DMY-2015 Indicator may be powered by voltage between 90 and 240VAC or
130 to 340VDC, any polarity. Remember that the internal circuit is powered
whenever the instrument is connected to the external power supply.
Input and output signals must be connected to the instrument only when it is
turned off.
Figure 3 shows the instrument rear terminals for connection of power supply,
ground, communication, process input and output signals.
Signal wiring must be kept far away from power wires.
Due to its metal case the instrument ground should be connected to earth
ground. Never connect the ground to neutral terminal.
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Fig. 3 - Indicator terminals
2.3 - Process Input Signal Connections
The Indicator presents specific inputs for connection of thermocouples, RTD,
current (mA) or voltage (V). See the different types and ranges of input sensors in
table 1, section 1.3 on Technical Specifications.
The connections explained below refer to the different types of input
which exist in the several models of the DMY-2015 Indicator. Make only the
connections allowed by the specific inputs in your instrument.
In order to avoid noise in the wiring, use twisted pair cable and cross sensor
connection wire inside a metallic tube or use shielded cable. Make sure to connect
only one shield wire end either to board terminal or to sensor ground, as shown in the
next items.
WARNING: GROUNDING TWO SHIELD WIRE ENDS MAY CAUSE NOISE IN THE
INDICATOR.
2.3.1 - Thermocouple Input
When using only one thermocouple, connect it to input 1, in order to get a
better precision in the temperature measurement, since the cold junction sensor is
placed near input 1.
In order to reduce the error due to cold junction compensation, use thermal
paste in the rear, at the terminals where the thermocouple is connected to the cold
junction sensor.
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Connect the thermocouples to the terminals shown below in table 2 for each
channel:
Channel Terminals
1 1(+) and 2(-)
2 3(+) and 4(-)
3 5(+) and 6(-)
4 7(+) and 8(-)
5 9(+) and 10(-)
6 11(+) and 12(-)
7 13(+) and 14(-)
8 15(+) and 16(-)
9 17(+) and 18(-)
10 19(+) and 20(-)
11 21(+) and 22(-)
12 23(+) and 24(-)
Table 2 - Thermocouple input terminals
Use appropriate compensating cables with the same material of the
thermocouple in order to connect it to the instrument. Check if the thermocouple
polarity is equal to those of the terminals.
Fig. 4 - Thermocouple connection
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2.3.2 - RTD Input
Connection is allowed for 2, 3 or 4 wires RTD. All types of connection are
shown in figure 5, and the connection terminals for RTD are described in table 3
below for each channel.
Channel Terminals 3rd wire Terminal
1 1 and 3 2
2 4 and 6 5
3 7 and 9 8
4 10 and 12 11
5 13 and 15 14
6 16 and 18 17
7 19 and 21 20
8 22 and 24 23
Table 3 - RTD input terminals
Fig. 5 - RTD connection
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An RTD input device may be a 2-wire, 3-wire or 4-wire RTD.
A 2-wire RTD is connected, for example, to terminals 1 and 3 when using input
1 as shown in Figure 5.
A 3-wire RTD is connected in the same way as explained for a 2-wire RTD,
adding the connection of the compensation wire to terminal 2 for input 1.
Connect a 4-wire RTD as indicated for a 3-wire RTD and keep its forth wire
disconnected. See figure 5.
With a 3-wire RTD one gets a better precision than with a 2-wire RTD.
Use wires of same material, gauge and length on all 3 terminals of each
channel for compensating resistance. The maximum resistance of each connection
wire must be 10 . Use 18 AWG wire (minimum) for distances up to 50 m and 16
AWG for distances greater than 50 m.
2.3.3 - Milliampere Input
Apply 4 to 20mA current signal to the terminals listed below in table 4 for each
channel:
Channel Terminals
1 1(+) and 2(-)
2 3(+) and 4(-)
3 5(+) and 6(-)
4 7(+) and 8(-)
5 9(+) and 10(-)
6 11(+) and 12(-)
7 13(+) and 14(-)
8 15(+) and 16(-)
9 17(+) and 18(-)
10 19(+) and 20(-)
11 21(+) and 22(-)
12 23(+) and 24(-)
Table 4 - Current input terminals
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Figure 6 below shows the connections of current sources.
Fig. 6 - Current source connection
2.3.4 - Volt Input
Apply 1 to 5V voltage signal to the terminals listed in table 5 below for each
channel:
Channel Terminals
1 1(+) and 2(-)
2 3(+) and 4(-)
3 5(+) and 6(-)
4 7(+) and 8(-)
5 9(+) and 10(-)
6 11(+) and 12(-)
7 13(+) and 14(-)
8 15(+) and 16(-)
9 17(+) and 18(-)
10 19(+) and 20(-)
11 21(+) and 22(-)
12 23(+) and 24(-)
Table 5 - Voltage input terminals
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Figure 7 below shows the connections of voltage sources.
Fig. 7 - Voltage source connection
2.3.5 - Connection for Indicators with different input types
The available models for DMY-2015 Indicator with different types of input are
listed below together with the corresponding terminals and channels for each input.
The connections of the sources or temperature sensors are made according to the
instructions described on sections 2.3.1 to 2.3.4.
Indicator Input Terminals
Type
TC / RTD TC 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and10 (CH5), 11 and 12 (CH6)
RTD 13 to 15 (CH7), 16 to 18 (CH8),
19 to 21 (CH9), 22 to 24 (CH10)
TC / mA TC 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and10 (CH5), 11 and 12 (CH6)
mA 13 and 14 (CH7), 15 and 16 (CH8), 17 and 18 (CH9),
19 and 20 (CH10), 21 and 22 (CH11), 23 and 24 (CH12)
TC / V TC 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and 10 (CH5), 11 and 12 (CH6)
mA 13 and 14 (CH7), 15 and 16 (CH8), 17 and 18 (CH9),
19 and 20 (CH10), 21 and 22 (CH11), 23 and 24 (CH12)
Table 6 - Terminals for Indicators with different input types
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Indicator Input Terminals
Type
mA / V mA 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and10 (CH5), 11 and 12(CH6)
V 13 and 14 (CH7), 15 and 16 (CH8), 17 and 18 (CH9),
19 and 20 (CH10), 21 and 22 (CH11), 23 and 24 (CH12)
mA / RTD mA 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and10 (CH5), 11 and 12 (CH6)
RTD 13 to 15 (CH7), 16 to 18 (CH8),
19 to 21 (CH9), 22 to 24 (CH10)
V / RTD V 1 and 2 (CH1), 3 and 4 (CH2), 5 and 6 (CH3),
7 and 8 (CH4), 9 and10 (CH5), 11 and 12 (CH6)
RTD 13 to 15 (CH7), 16 to 18 (CH8),
19 to 21 (CH9), 22 to 24 (CH10)
Table 7 - Terminals for Indicators with different input types
2.4 - Alarm Output Connection
The Indicator presents up to two alarm outputs obtained through the
installation of modules with SPDT relay or open collector voltage. Figure 8 illustrates
the Indicator outputs.
See sections 3.2 on Configuration and 4.3 on Optional module
Connection for details on configuration and installation of optional modules.
(*) Relay contact states shown are valid for SAFE option selected (see section 3.2 on Configuration), instrument
powered on and non-alarm condition. Position of the contacts are changed in alarm condition (with SAFE option
selected) or when the instrument is turned off.
Fig. 8 - Alarm output connection
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2.5 - Connection Diagrams
2.5.1 - Indicators with 12 thermocouples, current or voltage inputs and their
combinations
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2.5.2 - Indicators with 8 RTD inputs
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2.5.3 - Indicators with 6 thermocouples, current or voltage inputs and 4 RTD inputs
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2.6 - Communication
DMY-2015 Indicator communicates with computers through RS-232 or RS-
422/485 and with use of a MODBUS protocol communication software, when the
optional communication modules are installed and the communication parameters
are configured.
Specific information on communication and signal connection are described in
the communication manual.
2.7 - Engineering units
A label with several Engineering Units is supplied with each Indicator. Select
the one corresponding to the variable shown on the display and stick it to the front
panel of the Indicator.
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