Omega | DP20 | Owner Manual | Omega DP20 Owner Manual

Omega DP20 Owner Manual
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User’s Guide
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DP20
Economical Multisignal Meter
for Process, Temperatures and Electrical signals
www.omega.com info@omega.com
U.S.A.
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Servicing North America:
Omega Engineering, Inc.
Toll-Free: 1-800-826-6342 (USA & Canada only)
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Tel: (203) 359-1660
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The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and
reserves the right to alter specifications without notice.
2
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship
for a period of 25 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1)
month grace period to the normal two (2) year product warranty to cover handling and shipping
time. This ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
h a v i n g b e e n t a m p e re d w i t h o r s h o w s e v i d e n c e o f h a v i n g b e e n d a m a g e d a s a
re s u l t o f e x c e s s i v e c o r ro s i o n ; o r c u r re n t , h e a t , m o i s t u re o r v i b r a t i o n ; i m p ro p e r
specification; misapplication; misuse or other operating conditions outside of
OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor
a s s u m e s l i a b i l i t y f o r a n y d a m a g e s t h a t r e s u l t f r o m t h e u s e o f i t s p ro d u c t s
in accordance with information provided by OMEGA, either verbal or
w ri tte n . O M EGA wa rra n t s o n ly t h a t t h e p a r t s m a nu f a c tu re d by i t w i l l b e a s
s p e c i fi e d a n d f re e o f d e f e c t s . O M EGA M A K E S N O OT H E R WA R RA N T I E S O R
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT
THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY
DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are
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based on contract, warranty, negligence, indemnification, strict liability or otherwise,
s h a l l n o t exc e e d t h e p u rch a s e p ri c e o f t h e c o m p o n e n t u p o n w h i ch l i a b i l i t y
is based. In no event shall OMEGA be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a
“Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2)
in medical applications or used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes
no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and, additionally,
purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever
arising out of the use of the Product(s) in such a manner.
RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED
RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.
FOR WARRANTY RETURNS, please have the
following information available BEFORE
contacting OMEGA:
1.Purchase Order number under which the
product was PURCHASED,
2.Model and serial number of the product under
warranty, and
3. Repair instructions and/or specific problems
relative to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:
1. Purchase Order number to cover the COST
of the repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems
relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2017 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC.
3
DP20 Economical Multisignal Meter
Instruction Manual
1. Economical multisignal meter DP20
⅛ DIN Economical Multisignal panel meter for Process, Temperature and Electrical measurements
Instrument designed for industrial use, highly flexible, allows for
integration in multiple applications, reduced cost, excellent quality
and optional customization available.
• ‘Fast access’ menu at front key UP (5) configurable for fast access
to alarm setpoints (see section 1.20).
• ‘Eco’ mode reduces power consumption (see section 1.23).
• Simplified scaling configuration (see section 1.21).
• Function ‘external control’ to activate with a contact a predefined
function (second scaling, decimal point, reading “hold”, “tare,“
memory of maximum or minimum) (see section 1.24).
• 5 configurable brightness levels (see section 1.29.7).
Economical multisignal digital panel meter in ⅛ DIN size for panel
mount, and a wide range of applications. Accepts AC and DC voltage
signals from mV up to 600 V and currents up to 5 A (AC measures
in True RMS), process signals (mA and Vdc) with excitation voltage
included, thermocouples K, J, E, N, L, R, S, B, T and C, resistive
temperature probes (Pt100, Pt500, Pt1000, Ni100, Ni200, Ni1000,
PTC and NTC), resistances, potentiometers and frequency. Scalable
reading with 4 digits up to 9999 / -1999 with configurable decimal
point. Two independent alarms, configurable as maximum or
minimum, with hysteresis and setpoint.
Optional 1 or 2 relay outputs, 4/20 mA isolated analog output, and
Modbus RTU isolated serial communications.
Front protection IP65. Connections with plug-in screw terminals.
1.1 How to order
Model
DP20
Option 1
Option 2
-
-A1 (1 relay)
-M1 (analog output)
-S1 (Modbus RTU)
-A2 (1 relay)
-(empty)
-(empty)
Index
1. Economical multisignal meter DP20 . . . . . . . . . . . . . . 4
1.1 How to order . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Rear view . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Power connections . . . . . . . . . . . . . . . . . . . . . 5
1.5 Signal connections . . . . . . . . . . . . . . . . . . . . . 5
1.6 Mechanical dimensions in mm (in) . . . . . . . . . . . . 5
1.7 Installation and start-up . . . . . . . . . . . . . . . . . . 5
1.8 Technical specifications . . . . . . . . . . . . . . . . . . . 6
1.9 Internal jumpers . . . . . . . . . . . . . . . . . . . . . . . 7
1.10 Measuring AC voltages and AC currents . . . . . . . . . 8
1.11 Measuring DC voltages and DC currents . . . . . . . . . 9
1.12 Measuring thermocouples . . . . . . . . . . . . . . . 10
1.13 Measuring with Pt and Ni probes . . . . . . . . . . . . 11
1.14 Measuring with NTC probes . . . . . . . . . . . . . . . 12
1.15 Measuring with PTC probes . . . . . . . . . . . . . . . 12
1.16 Process measures . . . . . . . . . . . . . . . . . . . . 13
1.17 Measuring frequency . . . . . . . . . . . . . . . . . . 13
1.18 Measures of resistance . . . . . . . . . . . . . . . . . 14
1.19 Measures of potentiometers . . . . . . . . . . . . . . 14
1.20 ‘Fast access’ menu . . . . . . . . . . . . . . . . . . . . 15
1.21 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.22 Offset reading . . . . . . . . . . . . . . . . . . . . . . 15
1.23 ‘Eco’ mode . . . . . . . . . . . . . . . . . . . . . . . . 15
1.24 External control . . . . . . . . . . . . . . . . . . . . . 15
1.25 Second scaling . . . . . . . . . . . . . . . . . . . . . . 15
1.26 To open the instrument and install in a panel . . . . . 16
1.27 How to operate the menus . . . . . . . . . . . . . . . 17
1.28 Messages and errors . . . . . . . . . . . . . . . . . . . 17
1.29 Configuration menu . . . . . . . . . . . . . . . . . . . 18
1.29.1 Input signal ranges . . . . . . . . . . . . . . . . . . 18
1.29.2 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.29.3 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.29.4 Fast access . . . . . . . . . . . . . . . . . . . . . . 20
1.29.5 Super fast access . . . . . . . . . . . . . . . . . . . 20
1.29.6 External control . . . . . . . . . . . . . . . . . . . 20
1.29.7 Menu ‘Tools’ . . . . . . . . . . . . . . . . . . . . . 21
1.29.8 Configuring the options . . . . . . . . . . . . . . . 23
1.30 Full configuration menu . . . . . . . . . . . . . . . . . 24
1.31 Precautions on installation . . . . . . . . . . . . . . . 27
1.32 Factory configuration . . . . . . . . . . . . . . . . . . 27
2. Output and control modules . . . . . . . . . . . . . . . . . 28
2.1 Modules A1 and A2 (relay output) . . . . . . . . . . . . . . . . 28
2.2 Module M1 (analog output) . . . . . . . . . . . . . . . 28
2.3 Module S1 (Modbus RTU) . . . . . . . . . . . . . . . . 29
3. How to open and close . . . . . . . . . . . . . . . . . . . . 30
3.1 How to open the housing . . . . . . . . . . . . . . . . . 30
3.2 How to close the housing . . . . . . . . . . . . . . . . . 31
4. How to install a DP20-C-M1 module . . . . . . . . . . . . . 32
4.1 Characteristics . . . . . . . . . . . . . . . . . . . . . . . 32
4.2 How to install the module . . . . . . . . . . . . . . . . 32
4.3 How to open the instrument for M1 . . . . . . . . . . . 32
4.4 Configuration menu . . . . . . . . . . . . . . . . . . . . 32
4.5 Connections . . . . . . . . . . . . . . . . . . . . . . . . 33
4.6 Configuration for module ‘M1’ and scaling . . . . . . . 33
4
DP20 Economical Multisignal meter
Instruction Manual
1.2 Front view
Alarm 2
1.5 Signal connections
Logo
Key ‘LE’
Signals up to 600 V and 200 V (AC and DC) must be connected
at terminals 1 and 4. Signals for 5 A current (AC and DC) must be
connected at terminals 3 and 4. All other signals must be connected
between terminals 2 and 4. Terminal 5 is a ‘multifunction’ terminal,
configurable with one of the following functions :
• +15 Vdc excitation voltage (Vexc) for process signals
• +5 Vdc excitation for potentiometer signals
• connection for the Pt100 third wire compensation
• external contact ‘EK’ function
To select the terminal 5 function, select the position of internal
jumper ‘T’ (see section 1.9).
Alarm 1
Units
Units
Key ‘UP’
Key ‘SQ’
‘Fast access‘
(see section 1.29.4)
1 2 3 4 5
‘Configuration menu’
(see section 1.29)
1.3 Rear view
Pt100 3 wire, Pot+,
{ Vexc,
‘EK’ external control
Common { neutral, 0 V, common
5A
{ 5 Aac, ±5 Adc
Vac, ±Vdc, resistance, mA, pot,
Signal
{ thermocouple+,
Pt+, Ni+, PTC+, NTC+
600 Vac, 200 Vac
HV signal {
±600 Vdc, ±200 Vdc
multifunc.
Option 2
Option 1
~
~
~
~
1.6 Mechanical dimensions in mm (in)
1 2 3 4 5
8 9 0
Signal
(see section 1.5)
48
(1.89)
Power
(see section 1.4)
Units
96
(3.78)
16
(0.63)
75
(2.95)
Detail of the plug-in screw terminals provided with
the instrument. The instrument is provided with all
terminals needed, both male and female.
Panel
cut-out
44
(1.74)
92
(3.63)
1.4 Power connections
Earth
connection
The
instrument does not need earth
connection for correct operation
nor for compliance with security
regulations. Terminal 9 is not
connected to any internal circuit
and is provided only as a safe
place for earth wire.
8
(0.31)
8 9 0
1.7 Installation and start-up
~
1. Open the instrument as indicated at section 1.26 and access
the internal board.
2. Select jumpers ‘S’ for the signal range required (see section
1.9).
3. Select jumper ‘T’ to assign to multifunction terminal 5 the
required functionality (see section 1.9).
4. Close the instrument as indicated at section 1.26.
5. Connect the input signal and the power supply as indicated at
sections 1.4 and 1.5.
6. Enter the ‘configuration menu’ to configure the instrument
(scaling, alarms, ...) (see section 1.29).
+
Power 18 to 265 Vac/dc
~
-
Fuse - As requested by security regulation 61010-1, add a protection
fuse to the power to act as disconnection element, easily accessible
to the operator and identified as a protection device.
250 mA time-lag for power voltage > 50 Vac/dc
400 mA time-lag for power voltage < 50 Vac/dc
5
DP20 Economical Multisignal Meter
Instruction Manual
1.8 Technical specifications
Digits
number of digits
led
color
height
Reading
max. reading
min. reading
decimal point
9999
-1999
configurable X.X.X.X
readings
display refresh
step response
3 readings / second
3 refresh / second
300 mSec. (0 % to 99 % signal)
overrange
underrange
reading flashes at ‘9999’
reading flashes at ‘-1999’
Accepted input signal
AC voltages and currents
DC voltages and currents
thermocouples
temperature ‘Pt’
temperature ‘Ni’
temperature ‘NTC’
temperature ‘PTC’
process
Measuring Frequency
resistances
potentiometers
Functions included
4
7 segments led
red
14 mm
600 Vac, 200 Vac, 20 Vac, 2 Vac
200 mVac, 60 mVac, 5 Aac, 20 mAac
(see section 1.10)
±600 Vdc, ±200 Vdc, ±20 Vdc, ±2 Vdc
±200 mVdc, ±60 mVdc, ±5 Adc, ±20 mAdc
(see section 1.11)
K, J, E, N, L, R, S, B, T y C
(see section 1.12)
Pt100 (2 and 3 wires with automatic
compensation up to 30 R), Pt500, Pt1000
(see section 1.13)
Ni100, Ni200, Ni1000
(see section 1.13)
(see section 1.14)
(see section 1.15)
4/20 mA, 0/10 Vdc (active and passive)
(see section 1.16)
frequency up to 100 Hz
(see section 1.17)
ranges of 5 K and 50 K
(see section 1.18)
nominal value 500 Ohm up to 20 KOhm
(see section 1.18)
Accuracy at 25 ºC
Thermal drift
see following sections for each signal
150 ppm/º
Excitation voltage
+15 Vdc (max. 30 mA) for process signals
+5 Vdc for potentiometers
(at terminal 5, see sections 1.5 and 1.16)
Section
Fast access
to alarm setpoints,
maximum and minimum
1.20
External control
second scaling
decimal point 0, 1, 2 or
3 ‘hold’ reading 'tare'
function” memory of
maximal memory of
minimum
1.24
‘Eco’ mode
reduced consumption
1.23
Alarms
setpoint
hysteresis
set as max or min type
1.29.3
Offset reading
add a fixed number of
counts to reading
1.22
Display filter
recursive
‘steps’
Simplified scaling
1.29.7
1.21
Memory
max and min memory
1.29.4
Password
blocks configuration
1.29.7
Display brightness
5 levels
1.29.7
Table 1 - Functions included
Power supply
power ‘U’
isolation
18 to 265 Vac/dc
1500 Veff.
isolation tested for 60 sec.
consumption (without ‘Eco’) <1.5 W meter only
<2.5 W meter with options
consumption (with ‘Eco’)
<0.3 W meter only
<1.5 W meter with options
6
Configuration
3 front push buttons
Front protection
IP65, NEMA13
Output options
relay, analog, serial
(see section 2)
Mechanical
mounting
connections
housing material
weight
front size
panel cut-out
deep
panel
plug-in screw terminals
ABS, polycarbonate (V0)
<150 grams
96 x 48 mm (1/8 DIN)
92 x 44 mm
91 mm (including terminals)
Temperature
operation
storage
‘warm-up’ time
from 0 to +50 ºC (32 to 122 ºF)
from-20 to +70 ºC (-4 to 150 ºF)
15 minutes
DP20 Economical Multisignal meter
Instruction Manual
1.9 Internal jumpers
Internal jumpers ‘S’ are associated to the signal range. The position of
internal jumper ‘T’ assigns the function of the multifunction terminal
5. At ‘Table 2’ see a list of signal ranges and associated jumper ‘S’
and ‘T’. At Table 3 see the position for jumper ‘T’ associated to each
function of the multifunction terminal 5. To access the internal
jumpers, open the housing as explained at section 1.26. For additional
information on each signal range see the following sections :
• Ranges for AC voltages and currents, see section 1.10
• Ranges for DC voltages and currents, see section 1.11
• Ranges for thermocouples, see section 1.12
• Ranges for Pt and Ni probes, see section 1.13
• Ranges for NTC probes, see section 1.14
• Ranges for PTC probes, see section 1.15
• Ranges for process signals, see section 1.16
• Ranges for frequency signals, see section 1.17
• Ranges for resistance measures, see section 1.188
• Ranges for potentiometer measures, see section 1.199
Range
AC voltages and currents
200 Vac
I
Tc. J
20 Vac
A&I
Tc. E
2 Vac
B&I
200 mVac
C&I
60 mVac
E&I
Tc. R
5 Aac
I
Tc. S
20 mAac
D&I
Tc. T
~
~
4
G
±200 Vdc
---
±20 Vdc
A
±2 Vdc
B
±200 mVdc
C
±60 mVdc
A B C D E F G H I J K
Tc. N
Tc. L
4-5
E&J
Tc. C
E
Tc. B
E&J
Pt100 (3 wire) F & H & J
Pt100 (2 wire)
F&H
Pt500
F
E
Pt1000
F
±5 Adc
---
Ni100
F&H
±20 mAdc
D
Ni200
F&H
Process
Ni1000
F
4-5
4/20 mA
D
0/10 Vdc
A
1-2*
0 to 5 K
F&H&K
0 to 50 K
F&K
4-5
NTC
F&K
4-5
4-5
PTC probes
KTY 121
F
4-5
Potentiometers
0/100 %
A
2-3
Table 2 - Jumpers ‘S’ and ‘T’ and signal
ranges
Jumpers ‘T’
Active function at terminal 5
1-2
Vexc (excitation voltage +15 Vdc) for process
2-3
Potentiometer excitation (+5 Vdc)
4-5
External control (‘EK’ function)
5-6
Pt100 third wire
Table 3 - Jumpers ‘T’ and function at multifunction terminal 5
7
5-6
NTC probes
KTY 210, 220 F & H & K
Table 2 - Jumpers ‘S’ and ‘T’ and signal
ranges
Input signal terminals
E
Pt and Ni probes
Resistances
5
Jumpers not used can be stored for Jumpers stored at
future use by placing them at the ‘no ‘no contact’ position
contact’ positions indicated below.
Only the 3 positions indicated are
safe to store jumpers.
±600 Vdc
* jumper 1-2 to activate Vexc.
Select 4-5 to activate function ‘EK’
654321
3
~
DC voltages and currents
AB CD E F GH I J K
2
Tc. K
~
Jumpers ‘T’ for terminal 5
function selection
1
G&I
4-5
Jumpers Jumper
‘S’
‘T’
Thermocouples
600 Vac
~
~
Range
~
~
Displays
Jumpers ‘S’ for signal
range selection
Jumpers Jumper
‘S’
‘T’
DP20 Economical Multisignal Meter
Instruction Manual
1.10 Measuring AC voltages and AC currents
• AC signal ranges
The instrument accepts the measure of AC voltages
and currents, with ranges from 60 mVac up to 600 Vac,
covering from shunt signals to typical power line
voltages of 48 Vac, 115 Vac, 230 Vac and even 380 Vac.
Both phase - to - neutral and phase - to - phase measures are
accepted. AC currents signals of up to 5 Aac are accepted, and it has
a range of 20 mAac.
See below a list of typical connections :
• 600 Vac
• 20 Vac to 60 mVac​
• 200 Vac
• 20 mAac
1 2 3 4 5
• ‘True RMS’ measure
AC measure are TrueRMS. The instrument assigns a ‘dead band’
around 0, with a configurable value between 0 and 100. Value
is empirical, and by default is set to 20. The ‘dead band’ can be
configured at the ‘Configuration menu’ (see section 1.29.7).
1 2 3 4 5
• 5 Aac
1 2 3 4 5
~600
Vac
~60 mVac
~5
Aac
~600
Vac
~60 mVac
~5
Aac
Applications
• Scaling
The instrument allows to scale the reading to 4 digits (9999 / -1999)
with configurable decimal point to any position. The ‘second scaling’
function can also be used (see section 1.25).
... with shunts ...
measure of AC currents through a current
shunt of 60 mV, 100 mV or 150 mV and scaled
reading
... with X/5, X/1 current
transformers ...
measure of AC currents through a X/5 or X/1
current transformer and scaled reading
• Maximum oversignal
‘Maximum oversignal’ is the maximum signal accepted by the instrument. Higher signal values may cause instrument damage. Lower values are non destructive but may be out of accuracy specifications.
... direct measure ...
direct measure of currents up to 5 Aac
... with power line voltages ...
measure of voltages over power lines phase
and neutral, of 230 Vac, 115 Vac, ...
... with power voltages ...
measure of phase to phase lines on power lines
380 Vac, 230 Vac, ...
... with AC voltages
measure of AC voltages in panels using 24 Vac,
48 Vac, ...
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
Vac ranges
Scalable
Jumper ‘S’
Jumper ‘T’
(see section 1.9) (see section 1.9)
Accuracy
~
600 Vac
600
GI
800 Vac
~
200 Vac
200.0
I
800 Vac
20 Vac
20.00
2 Vac
2.000
200 mVac
200.0
CI
30 Vac
60 mVac
60.0
EI
3 Vac
~
~
from 9999
to -1999
AI
BI
4-5
(% FS)
Max.
oversignal
by default
~
~
Scale
(Veff.)
<0.30 %
(up to 150 Hz)
Connection
(terminals)
1(~ ) 4(~ )
150 Vac
100 Vac
654321
Example for jumper selection for ~200mVac
Jumpers ‘S’ placed on jumpers C & I.
Jumper ‘T’ between 4-5 for EK external control function.
Jumper not used placed between A-B of non-use.
AB CDE FGH I J K
Table 5 - Applications with measure of AC signals
Zin
12 M
12 M
1M
2(~ ) 4(~ )
100 K
10 K
1M
Table 4 - Measuring ranges in Vac
(Veff.)
by default
Scale
Scalable
5 Aac
5.00
20 mAac
20.00
from 9999
to -1999
Aac ranges
~
~
Jumper ‘S’
Jumper ‘T’
Accuracy
4-5
(up to 150 Hz)
(see section 1.9) (see section 1.9)
I
DI
Table 6 - Measuring ranges in Aac
8
(% FS)
Max.
oversignal
Connection
(terminals)
Zin
<0.50%
(max. 7 sec.)
7 Aac
3(~ ) 4(~ )
20 mOhm
25 mAac
2(~ ) 4(~ )
4.7 R
DP20 Economical Multisignal meter
Instruction Manual
1.11 Measuring DC voltages and DC currents
• Measuring DC signal ranges
The instrument accepts the measure of DC voltages
and currents, with ranges from 60 mVdc up to 600 Vdc,
covering applications with current shunts, tachometric
dynamos, batteries, process, etc. DC currents signals of
up to 5 Adc are accepted, and it has a range of 20 mAdc.
See below a list of typical connections :
• ±600 Vdc
• ±20 Vdc to ±60 mVdc​ • ±5 Adc
• ±200 Vdc
• ±20 mAdc
1 2 3 4 5
• Bipolar ranges
All signal ranges are bipolar, and the instrument can measure both
the positive and the negative signal.
• Scaling
The instrument allows to scale the reading to 4 digits (9999 / -1999)
with configurable decimal point to any position. The ‘second scaling’
function can also be used (see section 1.25).
1 2 3 4 5
1 2 3 4 5
common
common
common
±600 Vdc
±60 mVdc
±5 Adc
Applications
• Maximum oversignal
‘Maximum oversignal’ is the maximum signal accepted by the instrument. Higher signal values may cause instrument damage. Lower values are non destructive but may be out of accuracy specifications.
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
... with shunts ...
measure of DC currents through a
current shunt of 60 mV, 100 mV or
150 mV and scaled reading
... direct measure ...
direct measure of currents up to 5 Adc
and voltages up to 400 Vdc
... with batteries ...
measure of the battery voltage at
12 Vdc and 24 Vdc
... with tachometric
dynamos ...
read the speed in RPM from a
tachometric dynamo voltage signal
measure the voltage signal from the
... with speed variators ... variator, proportional to the RPM speed
of the motor
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
Table 9 - Applications with DC signals
Vdc ranges
Scale
by default
Scalable
Jumper ‘S’
Jumper ‘T’
(see section 1.9) (see section 1.9)
Accuracy
(% FS)
Max.
oversignal
±600 Vdc
600
G
800 Vdc
±200 Vdc
200.0
---
800 Vdc
±20 Vdc
20.00
±2 Vdc
2.000
±200 mVdc
200.0
C
±60 mVdc
60.0
E
from 9999
to -1999
A
B
4-5
<0.20 %
Connection
(terminals)
1(+) 4(-)
150 Vdc
100 Vdc
30 Vdc
654321
Example for jumper selection for ±200mVdc
Jumpers ‘S’ placed on jumpers C.
Jumper ‘T’ between 4-5 for EK external control function.
Jumper not used placed between A-B and E-F of non-use.
AB CDE FGH I J K
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
Zin
12 M
12 M
1M
2(+) 4(-)
100 K
10 K
<0.25 %
3 Vdc
1M
Accuracy
(% FS)
Max.
oversignal
Connection
(terminals)
Zin
<0.25 %
(max. 7 sec.)
7 Aac
3(+) 4(-)
20 mOhm
<0.15 %
25 mAdc
2(+) 4(-)
4.7 R
Table 7 - Measuring ranges in Vdc
Scale
Scalable
±5 Adc
±5.00
±20 mAdc
±20.00
from 9999
to -1999
Adc ranges
by default
Jumper ‘S’
Jumper ‘T’
(see section 1.9) (see section 1.9)
--D
4-5
Table 8 - Measuring ranges in Adc
9
DP20 Economical Multisignal Meter
Instruction Manual
1.12 Measuring thermocouples
of
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
• Temperature ranges and total error
Temperature ranges and total error for each type of thermocouple
are indicated on ‘Table 10’ below.
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
• Cold junction compensation
The thermocouple cold junction is automatically compensated by
the instrument. The automatic compensation can be disabled from
the configuration menu.
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
1 2 3 4 5
See below connections for thermocouple :
• Resolution and units
The instrument resolution when measuring thermocouples is 1º.
Reading can be configured in ºC (degrees Celsius) or ºF (degrees
Fahrenheit).
tc -
• Sensor break detection
In case of sensor break, the instrument will show ‘h.ovr’ or ‘h.udr’
(see Table 17) depending on the broken cable.
Example for jumper selection for Thermocouple N
Jumpers ‘S’ placed on jumpers E.
Jumper ‘T’ between 4-5 for EK external control function.
Jumper not used placed between A-B and C-D of non-use.
• Compensated cable
To correctly measure a thermocouple signal, always use compensated
cable, of the thermocouple used, to connect the instrument and the
thermocouple.
Thermocouple
Jumper ‘S’
(see section 1.9)
Jumper ‘T’
Range in ºC
(see section 1.9)
(in ºF)
(-148 / 2462 ºF)
-100 / 1200 ºC
Thermocouple J
(-148 / 2192 ºF)
-100 / 1000 ºC
E
(-148 / 1832 ºF)
-100 / 1300 ºC
Thermocouple N
(-148 / 2372 ºF)
4-5
(-148 / 1652 ºF)
0 / 1768 ºC
Thermocouple R
Thermocouple B
2 (tc +)
4 (tc -)
(32 / 3214 ºF)
0 / 1768 ºC
EJ
(32 / 3214 ºF)
-100 / 400 ºC
Thermocouple T
Thermocouple C
<3 ºC
-100 / 900 ºC
Thermocouple L
Thermocouple S
Total error
(cold junction included)
-100 / 1350 ºC
Thermocouple K
Thermocouple E
Connection
(terminals)
(-148 / 752 ºF)
0 / 2300 ºC
E
(32 / 4172 ºF)
700 / 1820 ºC
EJ
(1292 / 3308 ºF)
Table 10 - Temperature ranges for thermocouples
10
654321
tc +
AB CDE FGH I J K
• Thermocouples accepted
The instrument accepts direct connection
thermocouples type K, J, E, N, L, R, S, B, T and C.
<5 ºC
DP20 Economical Multisignal meter
Instruction Manual
1.13 Measuring with Pt and Ni probes
• Accepted Pt and Ni probes
The instrument accepts connection of Pt100, Pt500 and
Pt1000 temperature probes, and also Ni100, Ni200 and
Ni1000 temperature probes. Temperature ranges for
each type of probe are indicated on ‘Table 11’ below.
connection of the third wire of the Pt100 probe, for automatic wire
resistance compensation purposes, up to 30 R.
To configure for 2 wire Pt100 probes, set internal jumper ‘T’ at
position 4-5 (see section 1.9). Terminal 5 will be configured as ‘EK’
external control function. See section 1.9 for a list of available
functions.
• Pt100 with 2 and 3 wires
The instrument accepts connection for 2 and 3 wire Pt100 probes.
For 3 wire Pt100 probes, configure internal jumper ‘T’ at position
5-6 (see section 1.9). For 2 wire Pt100 probes, configure internal
jumper ‘T’ at position 4-5. Compensation of the wire resistance for 2
wire probes can be manually configured with the parameter ‘Offset
reading’ (‘oFFS’) (see section 1.22) which allows to configure a fixed
number of counts to be added to the reading.
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
See below a list of typical connections :
• Pt100 3 wires
• Resolution and units
The temperature resolution using Pt and Ni temperature probes is
configurable to 1º or 0.1º. Reading can be configured in ºC (degrees
Celsius) or ºF (degrees Fahrenheit).
1 2 3 4 5
Pt-
Jumper ‘T’
(see section 1.9)
Pt100 3 wires
FHJ
5-6
Pt100 2 wires
FH
Pt500
F
Pt1000
F
Range in ºC
(in ºF)
FH
Ni200
FH
Ni1000
F
Total error
Connection
(terminals)
2 (Pt+)
4 (Pt -)
5 (sense)
-200 / 700 ºC
(-328 / 1292 ºF)
654321
AB CDE FGH I J K
Current at
sensor
< 900 uA
-200 / 700 ºC
(-328 / 1292 ºF)
-150 / 630 ºC
< 90 uA
(-238 / 1166 ºF)
-190 / 630 ºC
(-310 / 1166 ºF)
4-5
Ni100
Pt+, Ni+
Example for jumper selection for PT100 3 wire
Jumpers ‘S’ placed on jumpers F & H & J
Jumper ‘T’ between 5-6 for PT100 3rd wire.
• Terminal 5 ‘multifunction’ - ‘Pt100 3 wire’ or ‘External control’
To configure for 3 wire Pt100 probes, set internal jumper ‘T’ at
position 5-6 (see section 1.9). Terminal 5 will be assigned to the
Jumper ‘S’
Pt-, Ni-
Pt+
• Alpha temperature coefficient
The instrument accepts Pt probes (Pt100, Pt500, Pt1000) with
‘Alpha’ parameter of ‘0.0385’ and ‘0.0390’ (see section 1.29.7). This
parameter is associated to the specific model of probe installed.
(see section 1.9)
1 2 3 4 5
Sense
• Sensor break detection
In case of sensor break, the instrument will show ‘h.ovr’ or ‘h.udr’
(see Table 17) depending on the broken cable.
Sensor
• other probes 2 wires
-60 / 180 ºC
(-76 / 356 ºF)
-60 / 120 ºC
(-76 / 248 ºF)
-60 / 180 ºC
(-76 / 356 ºF)
Table 11 - Ranges of temperature for Pt and Ni probes
11
<1ºC
2 (Pt+, Ni+)
4 (Pt -, Ni-)
< 90 uA
< 900 uA
< 900 uA
< 90 uA
DP20 Economical Multisignal Meter
Instruction Manual
1.14 Measuring with NTC probes
• Accepted NTC probes
The NTC probe is a temperature variable resistor
with a temperature - resistance curve defined by two
parameters called ‘R25’ and ‘beta’. By default, the
instrument is configured for a standard NTC with ‘R25’
of 10K and ‘beta’ of 3500. The measured temperature ranges from
-60 ºC to 150ºC.
Different NTC probes can be used, by configuring the instrument for
different values of ‘R25’ and ‘beta’. The instrument measures
resistance from 100 R up to 1 MOhm. Use ‘Table 12’ to write down
values for your NTC.
• Parameters ‘R25’ and ‘Beta’
The instrument accepts values of ‘beta’ between 2500 and 5500,
and values of R25 between 1.0 K and 200.0 K
• Resolution and units
The temperature resolution using NTC temperature probes is
configurable to 1º or 0.1º. Reading can be configured in ºC (degrees
Celsius) or ºF (degrees Fahrenheit).
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
See below connections for NTC probe :
ntc -
Jumper ‘S’
FK
Range
from -60ºC
to 150ºC
4-5
<1.5% of 2 (NTC +)
reading 4 (NTC -)
Table 13 - *‘Beta’ is configurable from 2000 to 5500. ‘R25’ is configurable from 1.0 K up to 200.0 K.
Range
of measure
654321
Example for jumper selection for NTC
Jumpers ‘S’ placed on jumpers F & K.
Jumper ‘T’ between 4-5 for EK external control function.
Jumper not used placed between A-B of non-use.
Accuracy Connection
Beta
(configurable)* (see section 1.9) (see section 1.9) of measure (% of reading) (terminals) (configurable)
10K
Jumper ‘T’
AB CDE F GH I J K
ntc +
• Sensor break detection
In case of sensor break, the instrument will show ‘h.ovr’ or ‘h.udr’
(see Table 17) depending on the broken cable.
NTC ‘R25’
1 2 3 4 5
NTC probe
Temp.
R25
Beta
100 R
3500
1 MOhm
Table 12 - Data from NTC datasheet
1.15 Measuring with PTC probes
• Accepted PTC probes
The instrument accepts direct connection of PTC
probes. Accepted PTC probes are listed at ‘Table 14’.
• Sensor break detection
In case of sensor break, the instrument will show ‘h.ovr’ or ‘h.udr’
(see Table 17) depending on the broken cable.
• Resolution and units
The temperature resolution using PTC temperature probes is
configurable to 1º or 0.1º. Reading can be configured in ºC (degrees
Celsius) or ºF (degrees Fahrenheit).
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
Family
Sensor
Jumper ‘S’
KTY 121
KTY81-121
KTY82-121
F
KTY 210
KTY81-210
KTY82-210
FHK
KTY 220
KTY81-220
KTY82-220
FHK
Jumper ‘T’
(see section 1.9) (see section 1.9)
Range in ºC Total error
(in ºF)
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section
1.7. Signal connections are indicated at section 1.5.
Location for internal jumpers is indicated at section 1.9.
See below connections for PTC probe :
4-5
-55 / 150 ºC
(-67 / 302 ºF)
<1ºC
1 2 3 4 5
ptc -
Table 14 - Ranges of temperature for PTC probes
ptc +
12
DP20 Economical Multisignal meter
Instruction Manual
1.16 Process measures
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
See below a list of typical connections :
• Measuring process signals
The instrument accepts the measure of process signals
in 4/20 mA and 0/10 Vdc. The instrument provides
excitation voltage to power up transducers.
• Scaling
The instrument allows to scale the reading to 4 digits (9999 / -1999)
with configurable decimal point to any position. The ‘second scaling’
function can also be used (see section 1.25).
• Maximum oversignal
‘Maximum oversignal’ is the maximum signal accepted by the instrument. Higher signal values may cause instrument damage. Lower values are non destructive but may be out of accuracy specifications.
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
• Terminal 5 ‘multifunction’ - ‘Vexc’ or ‘External control’
To configure the +15 Vdc excitation voltage at terminal 5, set internal
jumper ‘T’ at position 1-2 (see section 1.9). Transducers with a
consumption of up to 30 mA can be powered from this terminal.
To configure the ‘EK’ external contact function at terminal 5, set
internal jumper ‘T’ at position 4-5 (see section 1.9). See section 1.9
for a list of available functions.
Ranges
of measure
4/20 mA
0/10 Vdc
Scale
by default
Scalable
1 2 3 4 5
0/100.0
1 2 3 4 5
+15 Vdc (mA+)
+15 Vdc
signal (mA-)
common
• signal 4/20 mA active
1 2 3 4 5
Jumper ‘S’
4-5
de 9999
a - 1999
1-2
A
active
4-5
1 2 3 4 5
common
mA +
+Vdc
Jumper ‘T’
1-2
• signal 0/10 Vdc active
mA -
(see section 1.9)
D
active
• signal 0/10 Vdc passive
+Vdc
(see section 1.9)
passive
(needs Vexc.)
passive
(needs Vexc.)
• signal 4/20 mA passive
Accuracy
(%FS)
<0.15%
<0.20%
Max.
oversignal
25 mA
25 Vdc
Connection
(terminals)
2 (signal)
5 (Vexc)
2 (mA+)
4 (mA-)
2 (+Vdc)
4 (comm.)
5 (Vexc)
2 (+Vdc)
4 (comm.)
Zin
4.7 Ohm
1M
Table 15 - Ranges of measure for process signals
1.17 Measuring frequency
• How the instrument measures frequency
The instrument measures frequency from an AC
voltage (Vac) or AC current (Aac) signal. The instrument
detects each ‘0’ crossing of the signal, either ‘0 Vac’
or ‘0 Aac’. All available Vac and Aac signal ranges are
accepted as frequency input signal.
• Scaling
The default resolution is 0.1 Hz. The instrument allows to scale the
reading to 4 digits (9999 / -1999) with configurable decimal point
to any position. The ‘second scaling’ function can also be used (see
section 1.25).
• Maximum and minimum signal
Frequency signals below 15 Hz are measured as ‘0’. Frequency
signals higher than 100 Hz are out of accuracy. Signals higher than
1000 Hz will read ‘display overflow’ ‘d.oVr’ error.
• How to configure the instrument to measure frequency
To measure frequency from a Vac signal, select the internal
jumpers for the desired AC voltage range (see section 1.9), connect
the signal for the selected voltage range (see section 1.10), and
configure the instrument to measure frequency (see section 1.29.1).
The same applies to measure frequency from Aac signals. See
example at section below.
Ranges
Scale
of measure by default
15 to 100Hz
0/100.0
Scalable
AC signal
(see section 1.9)
from 9999 select Vac or
to -1999 Aac range
Table 16 - Ranges of measure for frequency
Jumper
'T'
4-5
• Example
Response
Accuracy To measure the 50 Hz frequency from a 230 Vac
time
(% reading) power line, select jumpers ‘GI’ for 600 Vac signal
70mSec.
<0.15% of range (see section 1.9), connect signal to terminals
‘1’ and ‘4’ (see section 1.10), and configure
reading
‘frequency’ at the input signal configuration menu
(see section 1.29.1).
13
DP20 Economical Multisignal Meter
Instruction Manual
1.18 Measures of resistance
• Measuring resistive signals
The instrument accepts the measure of resistances and
provides two ranges of measure from 0 to 5 K and from
0 to 50 K.
• Compensating the resistance of the signal wire
Resistances are measured with 2 wires system. To compensate for
the possible error introduced by the resistance of the signal wires,
the instrument allows to configure a fixed number of counts to be
added to the reading, both in positive or negative. This is done with
the parameter ‘Offset reading’ (‘oFFS’) (see section 1.22).
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
• Terminal 5 ‘multifunction’ - External control
Terminal 5 remains configured as ‘EK’ external control function. See
section 1.9 for a list of available functions.
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
See below connections for resistance 1 2 3 4 5
• Scaling
The instrument allows to scale the reading to 4 digits (9999 / -1999)
with configurable decimal point to any position. The ‘second scaling’
function can also be used (see section 1.25).
measures :
res -
Scale
by default
0 to 5 K
5.000
0 to 50 K
50.00
Scalable
Jumper ‘S’
Jumper ‘T’
Accuracy
(see section 1.9) (see section 1.9)
from 9999
to -1999
FHK
FK
(% of reading)
<1.5% of
reading
4-5
Example for jumper selection for 0/50 KOhm
Jumpers ‘S’ placed on jumpers F & K
Jumper ‘T’ between 4-5 for EK external
control function.
Jumper not used placed between A-B of
non-use.
Table 15 - Ranges of measure for resistances
654321
Ranges
of measure
AB CDE FGH I J K
res +
1.19 Measures of potentiometers
• Scaling
The instrument allows to scale the reading to 4 digits (9999 / -1999)
with configurable .
Example for jumper selection for Potentiometer
Jumpers ‘S’ placed on jumper A.
Jumper ‘T’ between 2-3 for 5 Vdc for Pot+.
Jumper not used placed between C-D and E-F of non-use.
• Response times
The response time to a signal step is 300 mSeconds, independent of
the signal range selected.
• Terminal 5 ‘multifunction’ - ‘Vexc’
To measure potentiometer signals, set internal jumper ‘T’ at position
2-3 (see section 1.9). Terminal 5 will be assigned to a +5 Vdc excitation
voltage for the potentiometer.
654321
• Start-up, connections and jumpers
For instrument start-up follow the steps listed at section 1.7. Signal
connections are indicated at section 1.5. Location for internal
jumpers is indicated at section 1.9.
AB CDE FGH I J K
• Measuring potentiometers
The instrument accepts the measure of 3 wire
potentiometers, with a single default range of 0/100 %
of the potentiometer span.
See below connections for measure of potentiometers :
1 2 3 4 5
Pot+ (5 Vdc)
Nominal
Ranges
Scale
pot. value
of measure
by default
from 500 R
up to 20 K
0 to 100 %
0/100.0
Scalable
Jumper ‘S’
Jumper ‘T’
A
2-3
(see section 1.9) (see section 1.9)
from 9999
to -1999
Table 16 - Ranges of measure for potentiometers
14
Accuracy
(% FS)
<0.5%
Pot- (comm.)
Signal
DP20 Economical Multisignal meter
Instruction Manual
1.20 ‘Fast access’ menu
1.23 ‘Eco’ mode
The ‘fast access’ menu allows to configure the front key ‘UP’ (‘5’) as
a direct access to the alarm 1 and / or alarm 2 setpoint values, and / or
the memory of maximum and minimum reading. The objective is to
provide the operator with a fast and direct access to alarm setpoints,
without accessing the standard configuration menu.
Access to ‘fast access’ menu is still allowed even with active
‘password’ function, allowing the operator to modify the alarm
setpoints, while still blocking any other change on the configuration.
The ‘fast access’ menu is configurable, and it allows to assign to the
front key none, one, several or all of the available functions. In case
of configuring access only to alarm 1, when pushing front key ‘UP’
(‘5’), the display directly access the setpoint value of alarm 1 (same
for alarm 2)
To configure the ‘fast access’ menu see section 1.29.4.
The ‘Eco’ mode reduces the consumption of the instrument to a level
of 0.3 W. The ‘Eco’ mode turns off the display, while the right decimal
point remains flashing gently on and off, showing that the instrument
is running on the background.
Display will turn on when an alarm activates, or when the operator
touches any of the front keys. If no alarms are active, and there is
no interaction from the operator, the instrument will turn off the
display. The waiting time before display turn off is configurable from
5 to 255 seconds.
To configure the ‘Eco’ mode see the configuration menu at ‘Tools’ \
‘Eco’ (see section 1.29.7).
1.24 External control
The ‘external control’ function allows to activate, by closing a free
potential contact, one of the following configurable functions :
• activation of the second scaling
• change the active decimal point
• ‘hold’ the reading
• 'tare' function
• visualize de memory of maximum (or minimum)
To configure the ‘EK’ external contact function, set internal jumper ‘T’
at position 4-5 (see section 1.9). The ‘EK’ external control function is
not compatible with function ‘Vexc’ (excitation voltage), the measure
of 3 wire Pt100, and the measure of potentiometers.
1.21 Scaling
The instrument can scale the reading to any value between 9999 and
-1999 and configure the decimal point position, for all signal ranges
except temperature ranges (thermocouples, Ni and Pt sensors, NTC
and PTC sensors) are not scalable. The scaling configuration is a
simplified two steps process :
1. configure at the ‘Display Low’ (‘d.Lo’) parameter the reading
value associated to the low signal range
2. configure at the ‘Display High’ (‘d.Hi’) parameter the reading
value for the high signal range
Some examples are explained below:
• for AC voltage and current ranges, for example 0/400 Vac,
configure at ‘d.Lo’ the reading for a signal of 0 Vac. Configure at
‘d.Hi’ the reading for a signal of 400 Vac.
• for DC voltage and current ranges, for example ±400 Vdc,
configure at ‘d.Lo’ the reading for a signal of 0 Vdc. Configure at
‘d.Hi’ the reading for a signal of 400 Vdc.
• for process ranges, for example 4/20 mA, configure at ‘d.Lo’ the
reading for a signal of 4 mA. Configure at ‘d.Hi’ the reading for a
signal of 20 mA.
• for potentiometer ranges, configure at ‘d.Lo’ the reading for a
signal of 0% (0 R). Configure at ‘d.Hi’ the reading for a signal of
100% (nominal of the potentiometer).
To configure the scaling see section 1.29.2.
To assign a function to the ‘external control’ see the configuration
menu at ‘External control’ (see section 1.29.6).
The function associated to the ‘EK’ external control activates when
short-circuiting terminal 5 and terminal 4.
* Risk of electric shock. The ‘EK’ external control function shares terminal 4 with the common of the input signal connection. When measuring dangerous voltages AND using ‘EK’ external control contact, apply
the appropriate protections to isolate the operator from dangerous voltages.
1.25 Second scaling
The instrument provides a ‘second scaling’, independent and
additional to the standard scaling explained at section 1.21. Control
of the scaling to be applied, with a free potential contact called
‘External control’. To configure the ‘second scaling’ :
1. configure the internal jumper ‘T’ to activate the ‘EK’ external
control function (see section 1.9).
2. associate the external control to the ‘second scaling’ function,
at the configuration menu ‘ScL.2’ set the value ‘EXt.c’ (‘External
control’) (see section 1.29.6)
3. configure the scaling at the configuration menu ‘Tools’ \ ‘ScL.2’
(see section 1.29.7).
4. apply connections to the external control
1.22 Offset reading
The ‘Offset reading’ (‘oFFS’) parameter allows a number of counts
to be added to the reading. This is specially useful to manually
compensate for resistance errors due to wire resistance, when
measuring with 2 wires Ni and Pt probes, and resistances. Applies
to all signal ranges. See configuration menu at ‘Tools’ \ ‘oFFS’ (see
section 1.29.7).
15
DP20 Economical Multisignal Meter
Instruction Manual
1.26 To open the instrument and install in a panel
B
To open the housing and access the internal circuits, use a flat
screwdriver to unlock clips ‘D’, ‘C’, ‘B’ and ‘A’, in this order. Remove the
front filter. Let the inside of the instrument slide out of the housing.
To reinsert the instrument make sure that all modules are correctly
connected to the pins on the display module. Place all the set into
the housing, assuring that the modules correctly fit into the internal
guiding slides of the housing. Once introduced, place again the front
filter at cover ‘X’, and then insert clips ‘A’, ‘B’, ‘C’ and ‘D’, in this order.
See section 3 for a detailed description on how to open and close
the housing.
C
X
A
* Risk of electric shock. Removing the front cover will grant
access to the internal circuits. Disconnect the power and
the input signal to prevent electric shock to the operator.
Operation must be performed by qualified personnel only.
Observe precautions for handling ESD (electrostatic discharge)
sensitive devices
The internal structure of the instrument is shown in the graphic
below.
Module ‘Opt.2’ connects to module ‘Opt.1’. Module ‘Opt.1’ connects
to the display. Optional modules can be replaced, changed, added or
removed simply by placing the proper module at the proper location.
See section 2 for a list of available optional modules.
Front filter
D
Optional modules
Display
Opt.1
Opt.2
Opt.1
Motherboard
Blue plastic tab
How to Install in a panel
1. Remove the 2 blue plastic tabs from each side of the unit.
2. After setting jumpers per manual (described in this
manual) and housing is firmly closed, insert instrument
from the front of panel into panel cut out.
3. Re-attach the 2 blue plastic tabs by sliding each one into
the track opening on each side and push until the tabs grab
onto the notches until snug onto the back of panel.
If needed use a flat screw driver to push the tabs strongly
like in the image (A).
To uninstall the instrument, just place the screw driver and
turn it between the box and the tab to ungrab the tabs (B).
Housing
mm
44
(1.74)
(inch)
92
(3.63)
Panel cut-out
16
A
B
DP20 Economical Multisignal meter
Instruction Manual
1.27 How to operate the menus
Example of operation inside the
‘configuration menu’.
The instrument has two menus accessible to the user :
‘Configuration menu’ (key SQ) (<)
(1)
(6)
‘Fast access’ menu (key UP) (5)
(2)
(5)
Configuration menu
Input
The ‘configuration menu’ modifies the configuration parameters
to adapt the instrument to the application needs. To access the
‘configuration menu’ press for 1 second the SQ (<) key. This access
can be blocked by activating the ‘Password’ (‘PASS’) function.
While operating the ‘configuration menu’, the alarm status is ‘hold’
to the status they had before accessing the menu, and the output
and control modules remain in ‘error’ state. When leaving the
‘configuration menu’, the instrument applies a system reset, followed
by a brief disconnection of the alarms and the output and control
modules. Functionality is then recovered.
(3)
(4)
1. The SQ (<) key enters into the
‘configuration menu’.
(4)
2. The SQ (<) key enters into the
‘InP’ option menu.
(3)
(5)
(3)
(4)
(5)
(3)
(4)
(5)
(6)
(3)
(3)
(3)
Note : example menu indicated
above is for information purposes
only, and may not match with
the actual menu entries of the
instrument.
For a detailed explanation on the ‘configuration menu’ see section
1.30, and for a full view of the ‘configuration menu’ structure see
section 1.30.
‘Fast access’ menu
The ‘fast access’ menu is an operator configurable menu, providing
fast and direct access to the most usual functions of the instrument
with a single key pad stroke. Press key UP (5) to access this menu.
3. The UP (5) key moves through
the menu options.
4. The SQ (<) key selects the
desired range and returns to the
‘InP’ menu.
5. The LE (3) key leaves the
actual menu level and moves to
the previous menu level.
6. The LE (3) key leaves the
‘configuration menu’. Changes
are applied and saved at this
moment.
1.28 Messages and errors
The error messages are shown on display in flash mode.
See section 1.20 for a list of functions eligible for ‘fast access’ in
this instrument. The ‘Password’ (‘PASS’) function does not block
access to this menu. Accessing and modifying parameters in the
‘fast access’ menu does not interfere with the normal functionality
of the instrument, and it does not generate any system reset when
validating the changes.
Messages and errors
‘h.udr’
‘h.oVr’
Hardware underrange (‘h.udr’) / overrange (‘h.ovr’).
Input signal is lower / higher than the minimum /
maximum signal the instrument can detect.
‘d.udr’
‘d.oVr’
display underrange (‘d.udr’) / overrange (‘d.ovr’). The
instrument already displays the minimum / maximum
value possible (9999 / -1999).
‘Err.0’*
at the ‘scaling’ (‘ScAL’) menu entry, the defined slope is
higher than ‘5000’ (slope almost vertical). Entered values
are dismissed and default values are activated.
‘Err.1’
incorrect password.
Front key pad description
Key SQ (<) - press the SQ (<) key for 1 second to access the
‘configuration menu’. Inside the menu, the SQ (<) key functions
as a ‘ENTER’ key. It selects and accesses the menu option currently
displayed. At menus with numerical value entries, it validates the
number displayed.
Key UP (5) - the UP (5) key gives access to the ‘fast access’ menu.
Inside the menus, it moves vertically through the different menu
options. At menus with numerical value entries, it modifies the digit
selected by increasing its value to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
Table 17 - Messages and error codes
Key LE (3) - inside the menus, the LE (3) key functions as the
‘ESCAPE’ key. It leaves the selected menu, and eventually, will leave
the whole menu. When leaving the ‘configuration menu’ with the
LE (3) key, the changed parameters are activated. At menus with
numerical value entries, the LE (3) key allows to select the active
digit. To modify the value of the selected digit use the UP (5) key.
Menu ‘rollback’
After 30 seconds without interaction from the operator, the
instrument will rollback and leave the ‘configuration menu’ or the
‘fast access’ menu. All changes will be discarded.
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DP20 Economical Multisignal Meter
Instruction Manual
1.29 Configuration menu
1.29.1 Input signal ranges
Press ‘SQ’ (<) for 1 second to access the ‘configuration menu’.
For a description on how to operate inside the menus see section
1.27. For a full vision of the ‘configuration menu’ structure see
section 1.30.
Access the ‘Input’ (‘InP’) menu to select the input signal range. For
a correct reading, the internal jumper ‘T’ (see section 1.9) must also
be selected accordingly.
600 Vac range
Input
AC signals
The instrument offers the following signal ranges :
200 Vac range
20 Vac range
• ‘AC signals’ (‘Ac’) - select a range between 600 Vac, 200 Vac,
20 Vac, 2 Vac, 200 mVac, 60 mVac, 5 Aac and 20 mAac. The AC
measure ranges provide ‘True RMS’ reading.
2 Vac range
200 mVac range
• ‘DC signals’ (‘dc’) - select a range between ±600 Vdc, ±200 Vdc,
±20 Vdc, ±2 Vdc, ±200 mVdc, ±60 mVdc, ±5 Adc and ±20 mAdc. Dc
measures are bipolar.
60 mVac shunt range
5 Aac range
20 mAac range
• ‘Process’ (‘Proc’) - select 4/20 mA or 0/10 Vdc. The instrument
provides excitation voltage to power up transducers at terminal 5.
To configure the excitation voltage, see section 1.16.
±600 Vdc range
DC signals
±200 Vdc range
• ‘Thermocouples’ (‘tc’) - select the thermocouple type between
K, J, E, N, L, R, S, B, T and C. The instrument automatically
compensates for the thermocouple cold junction.
±20 Vdc range
±2 Vdc range
• ‘RTD probes’ (‘rtd’) - the ‘rtd’ menu offers temperature resistive
probes type Pt (platinum) and Ni (Nickel). Select the type of probe
from the available options Pt100 3 wire, Pt100 2 wire, Pt500,
Pt1000, Ni100, Ni200 and Ni1000. For measures with 2 wires, a
manual compensation for the wire resistance error is available
using parameter ‘Offset reading’ (‘oFFS’) (see section 1.22).
±200 mVdc range
±60 mVdc shunt range
±5 Adc range
±20 mAdc range
• ‘NTC probes’ (‘ntc’) - select the ‘ntc’ menu to configure the
input for NTC probes. To correctly configure the measure for
NTC, two parameters need to be defined : first the resistance of
the NTC probe at 25º (‘r.25’) and parameter ‘beta’ (‘bEtA’). The
instrument accepts beta values between 2000 and 5500. For more
information on NTC measures see section 1.14.
4/20 mA range
Process
0/10 Vdc range
thermocouple K
Thermocouples
• ‘PTC probes’ (‘Ptc’) - select the ‘ptc’ menu to configure the input
for PTC probes. Select K121 for PTC probes from the KTY-121
family (KTY81-121 and KTY82-121). Select K220 for PTC probes
from the KTY-210 family (KTY81-210 and KTY82-210) and KTY-220
(KTY81-220 and KTY82-220). For more information on PTC probes
see section 1.15.
thermocouple J
thermocouple E
thermocouple N
thermocouple L
thermocouple R
thermocouple S
thermocouple B
thermocouple T
thermocouple C
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DP20 Economical Multisignal meter
Instruction Manual
1.29 Configuration menu (cont.)
• ‘Resistance’ (‘rES’) - select 5 K for a measuring range from 0 to
5 KOhms or select 50 K for a measuring range of 0 to 50 KOhms.
For a manual compensation for the error introduced by the signal
wires, see parameter ‘Offset reading’ (‘oFFS’) (see section 1.22).
Pt100 a 2 hilos
RTD probes
Pt100 a 3 hilos
pt500
• ‘Potentiometer’ (‘Pot’) - potentiometer measure has a single
range, valid for any potentiometer with nominal value between
500 R and 20 K.
Pt1000
Ni100
• ‘Frequency’ (‘FrEq’) - frequency measure has no selectable
ranges. The instrument reads frequency up to 100 Hz, within
accuracy specifications. For more information on frequency
measuring see section 1.17.
Ni200
Ni1000
res. at
25º
NTC probes
beta
1.29.2 Scaling
Scale the reading at the ‘Scaling’ (‘ScAL’) menu. Temperature ranges
(thermocouples, Pt and Ni probes, NTC and PTC probes) have direct
temperature indication and are not scalable.
KTY 121 family
PTC probes
KTY 210 and 220 family
To configure the scaling, enter the ‘Decimal point’ (‘dP’) parameter
and select the desired position for the decimal point, using key ‘LE’
(3).
range 0 to 5 K
Resistance
range 0 to 50 K
Then configure at the ‘Display Low’ (‘d.Lo’) parameter the reading
value associated to the low signal range and configure at the ‘Display
High’ (‘d.Hi’) parameter the reading value for the high signal range.
For more information see section 1.21.
Potentiometer
Frequency
1.29.3 Alarms
Scaling
Decimal point
The instrument has 2 independent and configurable alarms.
Control the independent activation of relays A1 installed (optionally)
at slots 1 and 2 (see section 2.1) from menu entries ‘Alarm 1’ (‘ALr1’)
and ‘Alarm 2’ (‘ALr2’). Alarms control also the activation of front leds
‘1’ and ‘2’ located as indicated at section 1.2.
Display Low
Display High
Alarm 1
To configure the alarms, enter at the alarm menu (‘ALr1’, or ‘ALr2’)
and configure the following parameters :
• at the ‘Alarm type’ (‘TypE’) parameter select alarm as as a
maximum type alarm (‘MAX’) or a minimum type alarm (‘MIn’).
The maximum type alarm (or minimum type) activates when the
display value is higher (or lower) than the setpoint value.
Alarm type
• at the ‘Setpoint’ (‘SEt’) parameter enter the value for the alarm
activation point. This parameter is eligible for configuration through
the ‘Fast access’ menu (see section 1.20).
Setpoint
• configure the hysteresis value at ‘Hysteresis’ (‘hySt’). The
hysteresis applies to the deactivation process of the alarm. The
alarm deactivates when the reading has passed the setpoint value
plus the hysteresis value. Hysteresis helps to avoid repetitive
switching of the alarm relays, due to fluctuating input signals
around the setpoint.
Hysteresis
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DP20 Economical Multisignal Meter
Instruction Manual
1.29 Configuration menu (cont.)
1.29.4 Fast access
Alarm 2
The key ‘UP’ (5) at the front of the instrument gives access to a
list of functions configurable by the operator. See section 1.27 for an
explanation on how to operate the ‘fast access’ menu.
The ‘Key UP (Fast access)’ (‘K.uP’) menu allows user to select which
functions will be accessible when pressing the front key ‘UP’ (5).
Select ‘on’ to activate each function.
• the ‘Setpoint 1’ (‘ALr1’) function allows user to visualize and
modify the setpoint value of alarm 1.
• the ‘Setpoint 2’ (‘ALr2’) function allows user to visualize and
modify the setpoint value of alarm 2.
•the ‘Memory of maximum’ (‘MAX’) or ‘Memory of minimum’
(‘MIn’) allows user to visualize the memory of maximum and
minimum reading. The memory resets when the instrument
restarts (power off-on cycle, or when leaving the configuration
menu with a change to be applied).
• the ‘Tare function’ (‘tArE’) allows user to visualize the actual
tare value.
Alarm type
Setpoint
Hystereses
Key UP
(fast access)
Setpoint 1
Setpoint 2
Memory of
maximum
Memory of
minimum
1.29.5 Super fast access
If only a single function is selected for the ‘fast access’ menu, pressing
the the ‘UP’ (5) key will shortly display the function name and then
automatically jump to the function value.
Tare function
External control
1.29.6 External control
Disabled
An external on / off control can be connected to the rear of the
instrument. The operator can then control the activation of a
configured function based on the state of this control. Function
remains activated while the external contact is closed, and will
deactivate when contact is open. To configure the function associated
to the external control, enter the menu ‘External control’ (‘EXt.c’).
• select ‘Disabled’ (‘oFF’) to have no function associated.
• select parameter ‘Memory of maximum’ (‘MAX’) to visualize on
display the memory of maximum reading.
• select parameter ‘Memory of minimum’ (‘MIn’) to visualize on
display the memory of minimum reading.
• select parameter ‘Display hold’ (‘hoLd’) to maintain the actual
reading ‘on hold’. Open the external contact to free the reading
• select ‘Tare function’ (‘tArE’) to activate a tare to the signal. The
actual signal will read ‘0’. The calibration is not changed.
Parameters ‘Memory of maximum’ (‘MAX’), ‘Memory of minimum’
(‘Min’) and ‘Display hold’ (‘hoLd’) show on display a value which is
not the actual measured input signal, therefore the values for this
parameters will be shown in flash mode, indicating that the actual
value is not the actual input value.
Memory of
maximum
Memory of
minimum
Display hold
Tare function
Decimal point 0
Decimal point 1
Decimal point 2
Decimal point 3
• select parameter ‘Decimal point 0’ (‘dP.0’) to remove the decimal
point on display.
• select parameter ‘Decimal point 1’ (‘dP.1’) to activate the decimal
point at position XXX.X
• select parameter ‘Decimal point 2’ (‘dP.2’) to activate the decimal
point at position XX.XX
Second scaling
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DP20 Economical Multisignal meter
Instruction Manual
1.29 Configuration menu (cont.)
• select parameter ‘Decimal point 3’ (‘dP.3’) to activate the decimal
point at position X.XXX
Parameters ‘Decimal point 0’ (‘dP.0’)and similar ‘dP.1’, ‘dP.2’ and
dP.3’ control which decimal point is on. When the external contact
closes, the decimal point selected lights on and the decimal point
that was activated before will power off. When the external contact
opens, the previous decimal point powers on again while removing
the new decimal point. Display does not show in flash mode when
decimal point functions are activated.
• select parameter ‘Second scaling’ (‘ScL.2’) to activate the second
scaling configured at menu ‘Tools’ (‘TooL’) \ ‘Second scaling’. The
activation of the ‘Second scaling’ function is accepted for all signal
input ranges based on AC input signals, DC input signals, process
and resistances. Display does not show in flash mode when second
scaling function is activated. For more information on the ‘Second
scaling’ seer section 1.25
1.29.7 Menu ‘Tools’
Tools
Option 1
disabled
The ‘Tools’ (‘tooL’) menu contains multiple configuration options of
the instrument.
relay
analog output
the parameter ‘420’ gives
access to the calibration
menu for the analog output. See section 2.2 for
more information.
Modbus RTU
• select at the ‘Option 1’ (‘out.1’) parameter the module type
installed at the ‘Opt.1’ (see section 2) slot. Select ‘relay’ (‘rELE’)
for the relay output module ‘A1’. Select ‘analog output’ (‘420’)
for the analog output module ‘M1’. Select ‘Modbus RTU’ (‘r.485’)
for the Modbus RTU serial output module ‘S1’.
Note : the parameter ‘420’ gives access to the calibration menu for
the analog output module. See section 2.2 for more information
about this menu and the calibration.
• the ‘Steps’ (‘StEP’) parameter allows to configure a defined
minimum step change on the reading. Reading will change in
steps of 1, 2, 5, 10, 20 or 50 counts.
Steps
• the ‘Average filter’ (‘AVr’) function allows to reduce reading
oscillations due to noisy signals, by applying a recursive filter
on the reading values. The strength of the recursive filter is a
value configurable between ‘0’ and ‘100’. Value ‘0’ means ‘filter
disabled’. Filter strength increases with the value. Increasing the
filter strength, increases the response time of the instrument.
Average filter
0 to 100
• the ‘Offset reading’ (‘oFFS’) parameter allows to configure
a fixed number of counts to be added to the reading. Accepts
values from -500 to 500. This function allows to compensate for
the possible error introduced by the resistance of the signal wires
when measuring Pt probes, Ni probes or resistances. For more
information see section 1.22
Offset reading
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DP20 Economical Multisignal Meter
Instruction Manual
1.29 Configuration menu (cont.)
Second scaling
• the ‘second scaling’ (ScL.2’) function allows to configure the
reading associated to the ‘second scaling’, which can be activated
by controlling a contact at the ‘external control’. For more
information on the ‘second scaling’ function see section 1.25.
Decimal point
• the ‘Eco mode’ (‘Eco’) is a function to reduce consumption of
the instrument, by powering off the display when display is not
needed. For consumption data in ‘Eco’ mode see section 1.8. For
more information in ‘Eco’ mode see section 1.23. The operation
of the ‘Eco’ mode is explained below :
Display Low
Display High
- the waiting time until display is powered off display is
configurable from 5 to 255 seconds.
‘Eco’ mode
- after the configured time is over, without interaction from
the operator, the display powers off the reading. It will not
power off if the instrument is into ‘configuration menu’ or in
‘fast access’ menu or there is an active alarm.
5 to 255 seconds
- the instrument will power on the display when an alarm
activates (either alarm 1 or 2) and will remain on if alarm
remains active.
- the instrument will power on the display if the operator
press any front key.
1º resolution
Temperature
resolution
• at the ‘Temperature resolution’ (‘t.rES’) menu select the
resolution to 1º or 0.1º. This resolution applies to temperature
probes Pt100, Pt500, Pt100, Ni100, Ni200, Ni1000, PTC and NTC.
For thermocouple probes resolution is fixed to 1º.
0.1º resolution
Degrees Celsius
Degrees
• at the ‘Degrees’ (‘dEG’) menu select the temperature values to
be read in ºC (degrees Celsius) or in ºF (degrees Fahrenheit).
Degrees Fahrenheit
• at the ‘Alpha’ (‘ALPh’) menu select the value for the alpha
parameter to ‘0.0385’ o ‘0.0390’. This parameter affects to Pt
probes (Pt100, Pt500, Pt1000) and it depends on the probe.
Alpha 0.0385
Alpha
Cold junction
Alpha 0.0390
• at the ‘Cold junction’ (‘cJc’) menu select ‘on’ to activate the
thermocouple cold junction compensation. Select ‘off’ to
deactivate.
Thermocouple cold
junction compensation
‘on’ or ‘off’
• the ‘AC deadband’ (‘d.bnd’) parameter applies only to
AC measuring ranges. The True RMS measures deal with a
considerable noise when signal is near to 0. This parameter allows
to set a value between 0 and 100 (by default is 20) to empirically
set the signal level at which reading will be forced to 0, when
signal is below that level.
Deadband for AC signals
‘AC deadband’
Minimum
• at the ‘Brightness’ (‘LIGh’) menu select between 5 levels of
brightness intensity for the display. It adapts the instrument to
environments with higher or lower brightness is needed or to
adapt the intensity to other meters in the area.
Brightness
Standard
• the ‘Version’ (‘VEr’) menu informs about the firmware version
installed on the instrument.
Maximum
• at the ‘Password’ (‘PASS’) menu select a 4 digit code to block
access to the ‘configuration menu’. Use the ‘Password’ function
to prevent modifications on the instrument configuration. To
activate the ‘Password’ select ‘on’ and enter the numerical code.
Version
The code will be requested when trying to access the ‘configuration
menu’. The ‘fast access’ menu is not blocked by the ‘Password’.
Password
• At the ‘Factory reset’ (‘FAct’) menu, select ‘yes’ to load the
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DP20 Economical Multisignal meter
Instruction Manual
1.29 Configuration menu (cont.)
default factory configuration for the instrument. See section 1.32
for a list of values at default factory configuration.
Factory reset
1.29.8 Configuring the options
Option 1
configuration*
(*value selected
at /Tool/Out.1)
Analog output
Display Low
At the ‘Option 1 configuration’ (‘out.1’) configure the module
installed at slot Opt.1. This menu varies depending on the module
installed (relay, analog output or serial output). The type of module
installed is indicated at the menu ‘Tools’ / ‘out.1’.
Display High
Modbus RTU
• ‘Analog output’ (‘420’) : select ‘analog output’ (‘420’) at ‘Tools’
/ ‘out.1’ / ‘420’, to have the analog output configuration at this
menu entry. Introduce the reading value associated to 4 mA
(Display Low (‘d.Lo’)) and the reading value associated to 20 mA
(Display High (‘d.Hi’))
Address 1 to 247
Speed Kbps
• ‘Modbus RTU’ (‘r.485’) : select ‘Modbus RTU’ (‘r.485’) at ‘Tools’
/ ‘out.1’ / ‘r.485’, to have the serial output configuration at this
menu entry. Configure the address for the instrument (parameter
‘Address 1 to 247’ (‘Addr’)), the bus speed (parameter ‘Speed
kbps’ (‘bAud’)) configurable to 9.600 bps or 4.800 bps, and the
bus format (parameter ‘Format’ (‘bItS’)) configurable at 8n1, 8E1,
8o1 or 8n2.
Format
The slot at Opt.2 allows only for a relay module, and configuration is
done through the menu entry ‘Alarm 2’ (‘ALr2’).
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DP20 Economical Multisignal Meter
Instruction Manual
1.30 Full configuration menu
Press ‘SQ’ (<) for 1 second to access the ‘Configuration menu’. See
section 1.29 for a description of each menu entry.
Pt100 a 2 wires
RTD probes
600 Vac range
Input
AC signals
Pt100 a 3 wires
Pt500
200 Vac range
Pt1000
20 Vac range
Ni100
2 Vac range
Ni200
200 mVac range
Ni1000
60 mVac shunt range
5 Aac range
20 mAac range
NTC probes
PTC probes
±200 Vdc range
±20 Vdc range
±200 mVdc range
Potentiometer
±60 mVdc range
±5 Adc range
±20 mAdc range
Scaling
Decimal point
4/20 mA range
Display Low
0/10 Vdc range
Display High
thermocouple K
Thermocouples
KTY 210 and 220 families
range 0 to 5 K
Resistance
±2 Vdc range
Process
beta
KTY 121 family
±600 Vdc range
DC signals
res.
at 25º
thermocouple J
thermocouple E
Alarm 1
Alarm type
thermocouple N
thermocouple L
Setpoint
thermocouple R
thermocouple S
Hysteresis
thermocouple B
thermocouple T
thermocouple C
24
range 0 to 50 K
DP20 Economical Multisignal meter
Instruction Manual
1.30 Full configuration menu (cont.)
Alarm 2
Alarm type
Tools
Option 1
disabled
relay
Setpoint
analog output
Hysteresis
the parameter ‘420’ gives
access to the calibration
menu for the analog output. See section 2.2 for
more information.
Modbus RTU
Key UP
(fast access)
Setpoint 1
Steps
Setpoint 2
Memory of
maximum
Memory of
minimum
Tare function
Average filter
External control
Disabled
0 to 100
Offset reading
Memory of
maximum
Second scaling
Memory of
minimum
Decimal point
Display Low
Display hold
Display High
Tare function
Decimal point 0
‘Eco’ mode
Decimal point 1
5 to 255 seconds
1º resolution
Temperature
resolution
Decimal point 2
0.1º resolution
degrees Celsius
Decimal point 3
Degrees
Second scaling
25
degrees Fahrenheit
DP20 Economical Multisignal Meter
Instruction Manual
1.30 Full configuration menu (cont.)
Alpha 385
Alpha
Alpha 390
Thermocouple cold
junction compensation
‘on’ or ‘off’
Cold junction
Deadband fo AC signals
‘AC deadband’
Minimum
Brightness
Standard
Maximum
Version
Password
Factory reset
Option 1
configuration*
(*value selected
at /Tool/Out.1)
Analog output
Display Low
Display High
Modbus RTU
Address 1 to 247
Speed Kbps
Format
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Instruction Manual
1.31 Precautions on installation
According to directive 2012/19/EU, electronic
equipment must be recycled in a selective and
controlled way at the end of its useful life.
Risk of electrical shock. Instrument terminals can be connected
to dangerous voltage.
Instrument protected with double isolation. No earth connection
required.
Note: The AC powered units cannot be shipped to Canada.
Instrument conforms to CE rules and regulations.
This instrument has been designed and verified conforming to the 61010-1 CE Security
Regulation, for industrial applications. Installation of this instrument must be performed
by qualified personnel only. This manual contains the appropriate information for the
installation. Using the instrument in ways not specified by the manufacturer may lead to a
reduction of the specified protection level. Disconnect the instrument from power before
starting any maintenance and / or installation action.
The instrument does not have a general switch and will start operation as soon as power is
connected. The instrument does not have protection fuse, the fuse must be added during
installation.
The instrument is designed to be panel mounted. An appropriate ventilation of the
instrument must be assured. Do not expose the instrument to excess of humidity.
Maintain clean by using a humid rag and do NOT use abrasive products such as alcohols,
solvents, etc. General recommendations for electrical installations apply, and for proper
functionality we recommend : if possible, install the instrument far from electrical noise
or magnetic field generators such as power relays, electrical motors, speed variators, ... If
possible, do not install along the same conduits power cables (power, motor controllers,
electrovalves, ...) together with signal and/or control cables. Before proceeding to
the power connection, verify that the voltage level available matches the power levels
indicated in the label on the instrument. In case of fire, disconnect the instrument from
the power line, fire alarm according to local rules, disconnect the air conditioning, attack
fire with carbonic snow, never with water.
1.32 Factory configuration
Range
Scaling and decimal point
Alarms 1
Type
Setpoint
Hysteresis
Alarm 2
Type
Setpoint
Hysteresis
External control
Fast access
Tools
Option.1
Step
Average
Offset reading
Second scaling
‘Eco’ mode
Temperature resolution
Degrees
Alpha
cJc
AC deadband
Brightness
Password
Option 1 configuration
Option analog output
Option serial Modbus RTU
600 Vac
0/600 Vac = 0/600
Jumpers ‘S’
Jumper ‘T’
selected for 600 Vac
selected for ‘EK’ external control function
alarm as maximum
1000
0 counts
alarm as maximum
1000
0 counts
off
all off
off (retains last configuration value)
1
0
0
0/600
off
1º
ºC
385
on
20
3
off
0/100.0=4/20 mA
9600 bps, address 1, format 8n1
27
DP20 Economical Multisignal Meter
Instruction Manual
2. Output and control modules
2.1 Modules A1 and A2 (relay output) 2.2 Module M1 (analog output)
The A1 (and A2) modules offer 1 relay output to be installed at slot
Opt.1 (module A2 at Opt.2). The relay installed at Opt.1 is controlled
by alarm 1, and is configured from the ‘Alarm 1’ (‘Alr1’) menu
explained at section 1.29.3. The relay installed at Opt.2 is controlled
by alarm 2, and is configured from the ‘Alarm 2’ (‘Alr2’) explained
at section 1.29.3. Relay with 3 contacts (Common, Normally closed,
Normally open) accepting voltages up to 250V @8A.
The M1 module offers 1 analog output at 4/20 mA, isolated, to be
installed at slot Opt1.
The 4/20 mA output signal is fully scalable, both with positive and
negative slopes, and is proportional to the reading of the instrument.
The mA output can be connected to work in active loop (the module
provides the power of the loop) or passive mode (the power of the
loop is not provided by the instrument)
The A1 and A2 modules can be ordered installed in to a Series C
instrument or standalone for later installation, as they do not require
soldering or special configuration..
Connections
For an active 4/20 mA loop, connect terminal A (‘Vexc +15 Vdc’) as
current output and terminal B (‘Signal in mA’) as return of current.
For a passive 4/20 mA loop, connect terminal B (‘signal in mA’) as
current output and terminal C (‘GND’) as return of current.
Type of relay
3 contact relay (NC, NO, common)
Output signal
4/20 mA (active and passive)
Current maximum
8 A per relay (resistive load)
Voltage maximum
250 Vac continuous
Active output
connect terminal A (+15 Vdc) and B (mA)
RL <350 R
Passive output
connect terminal C (GND) and B (mA)
RL < 700 R
Accuracy
<0.5% FS
when switching power lines, with overvoltage category 3, maximum
switching voltage is 150Veff to comply with CE safety requirements.
Isolation
3500 Veff
Type of terminal
plug-in screw terminal, pitch 5.08 mm
Slots allowed
Opt.1 for A1 module
Response time
<100 mSeg. + meter response time
Opt.2 for A2 module
Isolation
1000 Vdc
Slots allowed
Opt.1
Opt.2
G H I
Signal
Terminal A, G
Terminal B, H
Terminal C, I
Com.
NO
NC
Opt.1
Opt.1
Com.
NO
NC
A B C
A B C
Power
Signal
Common
NO - Normally open
NC - Normally closed
Terminal A
Terminal B
Terminal C
28
Power
Vexc +15 Vdc
Signal in mA
Common
Vexc
4/20 mA
Common
DP20 Economical Multisignal meter
Instruction Manual
2.3 Module S1 (Modbus RTU)
The S1 module offers 1 Modbus RTU serial output, isolated, to be
installed at slot Opt1.
Installing, calibrating and configuring a M1 module
If the M1 module has been acquired installed in the instrument, then
the module has been factory calibrated. In this case you can jump
directly to point 7 below.
Configuration is done from the front keypad, through the configuration
menu. The instrument must be informed that there is a Modbus RTU
module at slot.1 and this is done at the configuration menu ‘Tool’ \
‘out.1’ (see section 1.29.7). Then configure the bus parameters at the
configuration menu ‘out.1’ \ ‘r485’ (see section 1.29.8).
If the M1 module has been acquired separately and installation is
needed, follow the next steps :
1. Access the instrument and install the M1 module at slot Opt.1
(see section 1.26).
The S1 module can be ordered installed in to a Series C instrument
or standalone for later installation, as it does not require soldering or
special configuration.
2. From the ‘Configuration menu’ go to ‘tool’ \ ‘out.1’ and select
value ‘420’ (see section 1.29.7) to inform the instrument that there
is a M1 analog output module installed.
From this point you will need the calibration sheet provided together
with the module M1. This sheet shows the values for parameters
‘cAL.y / 4mA’ and ‘cAL.y / 20mA’.
3. When selecting ‘420’ the instrument shows ‘cAL.n’. (‘Do not
calibrate’). Press ‘UP’ (5) to read ‘cAL.y’ (‘Calibrate’).
4. When selecting ‘cAL.y’ (‘Calibrate’) select ‘4 mA’. Display shows
a number. Introduce the value of the ‘cAL.y / 4mA’ indicated at the
calibration sheet provided together with the M1 module. Increase
the numerical value with key ‘UP’ (5) and reduce the value with
key ‘LE’ (3). Validate the value with key ‘SQ’ (<). See below an
image of the configuration menu.
Protocol
Modbus RTU
Bus type
RS-485, configurable for 9.600 or 4800 bps
5. Repeat with the ‘20 mA’ parameter, and update with the value
‘cAL.y / 20mA’ indicated at the calibration sheet. Validate with
key ‘SQ’ (<), and press key ‘LE’ (3) several times to exit the
‘Configuration menu’.
Addresses
1 to 247
Formats
configurable 8n1, 8e1, 8o1, 8n2
Function code
4
read register
6. The instrument will reboot when exiting the menu. The analog
output is calibrated.
Registers
0
1
reading value (16 bits)
number of decimals (16 bits)
Note : if you do not have the calibration sheet which was shipped
together with the M1 module, you can use a miliammeter to
measure the mA at the output loop. Then access parameters
‘cAL.y / 4mA’ and ‘cAL.y / 20mA’ and adjust the calibration value by
checking the miliammeter value.
Errors
0
1
function
not
supported
register not accessible
Isolation
1000 Vdc
Slots allowed
Opt.1
At this point the module is installed and calibrated. Now configure
the reading associated to the output signal 4 mA and 20 mA.
B A G
7. Configure the reading associated to the 4 mA output signal
and the reading associated to the 20 mA output signal, at the
configuration menu ‘out.1’ \ ‘420’ (see section 1.29.8).
Tools
Option 1
Disabled
Signal
Power
relay
analog output
Opt.1
Terminal B
Terminal A
Terminal G
Do not calibrate
Calibrate
Modbus RTU
29
B
A
GND
B
A
GND
DP20 Economical Multisignal Meter
Instruction Manual
3. How to open and close
3.1 How to open the housing
A. Locate the clips
Locate the 4 clips (A B C D). Clips are covered by the front filter.
Clips can be seen when looking from the rear of the instrument, just below the front filter.
A.1
B
A.3
A.2
D
C
A
D
B
C
A
B
A
B. How to unclip one clip
Place a flat screw driver at the first clip. Insert firmly until the end of the clip space, and then turn gently the screwdriver clockwise approx.
45º (while still pushing against the clip). The front filter will ‘move up’ and unclip itself. Clip is unclipped when the front filter corner moves
slightly to the front.
B.1
B.2
B.3 Screw driver placed
B
B
B
Clipped
A
A
C. Repeat with all clips
Repeat for remaining 3 clips. All 4 clips are now unclipped.
Front filter is slightly moved to the front on each corner. It can now be removed by hand.
C.1
C.3
C.2
D
B
C
A
Screw driver turned
B
Unclipped
Unclipped
30
Unclipped
DP20 Economical Multisignal meter
Instruction Manual
3.2 How to close the housing
A. Locate the clips
Locate the 4 clips (A B C D) at the housing (image A.1) and the 4 matting clips at the filter (image A.2). With the instrument inside the housing,
face the front filter against the housing (do not clip yet). Do not press the rear terminals with your hand, as the instrument would force the
filter outwards.
A.1
B
A.2
D
A.3
D
B
Front filter
Internal View
C
C
A
A
B. Fit corner ‘X’ and clip ‘A’
Fully insert corner ‘X’ into the housing. See at image B.2 that the filter is not yet clipped : only corner ‘X’ is completely fitted. Corner ‘Y’ can
be also fitted or not fitted (it is not important). With corner X fitted and firmly pressed (it must remain fitted), press clip ‘A’ and it will clip (you
will hear a clear ‘snap’).
B.1
B.2
B.3
Corner ‘Y’ can be
fitted or not fitted
Corner ‘X’ fitted
Press ‘A’
‘X’
Corner ‘X’ fitted
C. Clip remaining clips ‘B’, ‘C’ & ‘D’
Still press firmly corner ‘X’ until all four clips are clipped. You can release your finger from clip ‘A’ as clip ‘A’ will not unclip once it is clipped.
Press on clip ‘B’ until it clips (you will hear a clear ‘snap’). Then press on clips ‘C’ and ‘D’ (you will hear a clear ‘snap’ on each case).
C.1
C.2
C.3
2n
Press ‘D’
1st
Press ‘C’
Press ‘B’
Corner ‘X’ fitted
Corner ‘X’ fitted
31
DP20 Economical Multisignal Meter
Instruction Manual
4. How to install a DP20-C-M1 module
4.4 Configuration menu
4.1 Characteristics
Modules ‘M1’ provide 4/20 mA analog output signal, to be installed on slot ‘Opt.1’ on DP20 instruments. Installing a ‘M1’ module is
fast, with the only help of a flat screw driver to unlock the housing
clips and a minimum configuration explained in this document. The
‘M1’ module provides 4/20 mA signal, isolated, proportional to the
instrument reading, scalable both with positive or negative slope,
and can be connected to generate active or passive loops.
Input
Escalado
Material included with the reference DP20-C-M1 (Board DP20 Output)
1x Data for precision improvement
1x Module ‘M1’
Alarma 1
Alarma 2
Pulsador UP
(accesos rápidos)
Control externo
1x Female screw clamp
for conexion
Tools
Opción 1
Inhabilitado
See section 4.6.1
relé
Before proceeding to install the module, remove all
terminal connections from power lines, input signal
and controls.
salida analógica
No calibrar
Calibrar
4.2 How to install the module
RS-485 ASCII
1. Open the housing (see section 4.3)
2. If a module exists on slot ‘Opt.1’, take it out
3. Install module ‘M1’ at slot ‘Opt.1’ and then the instrument
4. Close the housing (see section 4.3)
5. Configure module ‘M1’ and scale it (see section 4.6)
Menú de configuración de la
Opción 1
See section 4.6.2
Display Low
Display High
See section 4.6.3
4.3 How to open the instrument for M1
To open the housing and access the
internal circuits, use a flat screwdriver to
unlock clips ‘D’, ‘C’, ‘B’ and ‘A’, in this order.
Remove the front filter. Let the inside of
the instrument slide out of the housing.
To reinsert the instrument make sure that
all modules are correctly connected to the
pins on the display module. Place all the set
into the housing, assuring that the modules
correctly fit into the internal guiding slides
of the housing. Once introduced, place
again the front filter at cover ‘X’, and then
insert clips ‘A’, ‘B’, ‘C’ and ‘D’, in this order.
Front filter
B
Module M1
Display
D
Opt.1
Opt.1
Opt.2
C
X
A
Risk of electric shock. Removing the front cover will grant access to the internal circuits.
Disconnect the power and the input signal to prevent electric shock to the operator.
Operation must be performed by qualified personnel only.
32
Box
DP20 Economical Multisignal meter
4.5 Connections
Indicated below are the connections for a
4/20 mA signal loop generated from a module
‘M1’.
To generate an active 4/20 mA loop, connect
terminal ‘A’ as the output current, and terminal ‘B’ as the input current.
To generate a passive 4/20 mA loop (the loop
is powered from an external power supply),
connect terminal ‘C’ as the output current,
and terminal ‘B’ as the input current.
Option M1 in Slot 1
A B C
Signal
Power
Output 4/20mA ACTIVE
+15 Vexc
4/20 mA
A B C
Output 4/20mA PASSIVE
4/20 mA
Common
A B C
Instruction Manual
4.6 Configuration for module ‘M1’ and scaling
Once installed, the instrument must be informed that such module is installed at Slot
‘Opt.1’ and configure the adjust for the analog output 4/20mA
To do it, go to parameter ‘Tool’ → ‘out.1’ and select value ‘420’. Validate ‘cAL.n’ and
leave the menu saving. A step-by-step process is indicated below :
4.6.1 Activate de module M1
- enter the configuration menu pressing key ‘SQ’ (<). Meter shows ‘InP’
- press key ‘UP’ (5) several times until parameter ‘TooL’ is displayed
- press key ‘SQ’ (<) to enter the ‘TooL’ menu, message ‘out.1’ is displayed
- press key ‘SQ’ (<) to enter the ‘out.1’ menu, message ‘oFF’ is displayed
- press key ‘UP’ (5) until value ‘420’ is displayed
- press key ‘SQ’ (<) to enter the ‘420’, message ‘cAL.n’ is displayed
- press key ‘SQ’ (<) to validate‘cAL.n’, then ‘out.1’ appears again
- press key ‘LE’ (3) several times to leave the configuration menu saving new parameters
- when leving the menu the instrument restarts to apply the new changes, and shows
the new parameters configuration. Now analog output is activated and functional.
4.6.2 Introduce the data for precision improvement for the output
Parameters by default are :
‘cAL.y’ → ‘4mA’ =
100
‘cAL.y’ → ‘20mA’ =
900
Correct the values 100 and 900 with the values supplied in
the sheet attached to the module “Data for precision improvement” for the analog output 4/20mA
- press key ‘SQ’ (<) to enter the menu
- press key ‘UP’ (5) until reach parameter ‘TooL’
- press key ‘SQ’ (<) 3 times to enter to ‘TooL’ → ‘out.1’ →
‘420’ →‘cAL.n’
- press key ‘UP’ (5) until reach parameter ‘cAL.y’
- press key ‘SQ’ (<) to enter ‘cAL.y’, it shows ‘4mA’
- press key ‘SQ’ (<) to enter ‘4mA’ and modify the parameter 100 for the value
supplied (value in our sample is XXX)
- enter the menu ‘20mA’ and modify the parameter 900 for the value supplied (value ZZZ
in our sample)
- press key ‘LE’ (3) several times to go out the menu configuration saving new parameters
The entered ‘cALy’ values are not reseted if the “factory default” function is activated. Once entered, the data remains in the memory.
4.6.3 Configure the Output 4/20mA with the desired adjust according to the indication of the meter
Analog output is scaled with respect to the indication, with a scale 0/1000=4/20mA. To
modify this scale, in the menu ‘out.1’ → ‘dLo’ and ‘dhI’, which can be modified to scale
the analog output:
- d.Lo = 0000 indication for 4 mA. Modify according to the required setting.
- d.hI = 1000 indication for 20 mA. Modify according to the required setting.
Note : if you do not have the sheet ‘Data for precision improvement’ supplied with the module,
but you do have a miliammeter to measure the mA generated by the loop, you can still access parameters ‘cAL.y’ → ‘4mA’ and ‘cAL.y’ → ‘20mA’ and readjust the value manually by checking the
generated signal in your miliammeter.
33
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