Omega PLATINUM Series User manual

MDS8PT
Universal Temperature & Process
Benchtop Meter with Alarms

PROPRIETARY STATEMENT - This manual contains proprietary design information representing Omega Engineering Inc. It is intended solely for the
Information and use of parties operating and maintaining the equipment described herein. Such proprietary information may not be used, reproduced, or
disclosed to any other parties for any other purpose without the expressed written permission of Omega Inc.
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Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: [phone] Fax: [phone]
e-mail: [email protected]
For Other Locations Visit omega.com/worldwide
omega.com [email protected]

TABLE OF CONTENTS
SECTION 1 INTRODUCTION
1.1 Safety and Precautions ........................................................................................ 1
1.2 Cautions and IEC Symbols .................................................................................. 1
1.3 Statement on Marking ................................................................................ 2
1.4 Available Models .................................................................................................. 2
1.5. Communication .................................................................................................... 2
1.6 Reference Manuals .............................................................................................. 2
SECTION 2 UNPACKING
2.1 Inspection ............................................................................................................. 3
2.2 Power Cords ......................................................................................................... 4
SECTION 3 HARDWARE SETUP
3.1 MDS8PT Front Panel ........................................................................................... 5
3.1.1..10-Pin Connector ............................................................................................ 6
3.1.2..RTD Wiring Diagram Connector ...................................................................... 7
3.1.3..Process Current Wiring Diagram ..................................................................... 7
3.1.4..Universal Thermocouple Connector ................................................................ 8
3.2 MDS8PT Rear Panel ............................................................................................ 9
3.2.1.. Screw Terminals ........................................................................................... 10
SECTION 4 CONFIGURATION AND PROGRAMMING
4.1 Controls ............................................................................................................... 11
4.2 Menu Structure ................................................................................................... 12
4.3 Selecting an Input ............................................................................................... 13
4.4 AlarmConguration(PRoG>ALM.#).................................................................14
4.4.1..Setting Alarm Type .........................................................................................14
4.4.2..SettingAlarmHigh/LowReferences.............................................................15
4.4.3..SettingtheAlarmColor(PRoG>ALM.#>A.CLR)........................................15
4.4.4..ActivatingaRelay(PRog>dtR#>Mode).....................................................15
4.5 Analog Output ......................................................................................................16
4.5.1..Select an Output Type ....................................................................................16
4.5.2..Set Mode to Retransmission ..........................................................................16
4.5.3..Set Scaling .....................................................................................................16
SECTION 5 SPECIFICATION
5.1 Approval Information ........................................................................................... 17
SECTION 6 MAINTENANCE .......................................................................................... 18

TABLE OF FIGURES
Figure 1. Accessories Packaged with MDS8PT Unit ................................................... 3
Figure 2. MDS8PT Front Panel .................................................................................. 5
Figure 3. 10-Pin Connector Input Pin Assignments ..................................................... 6
Figure 4. RTD Wiring Diagram .................................................................................. 7
Figure 5. 4-20 mA Sensor Wiring Diagram ................................................................ 7
Figure 6. Mini/Standard Thermocouple ...................................................................... 8
Figure 7. MDS8PT Rear Panel .................................................................................. 9
Figure 8. Benchtop Meter Wiring Diagram ................................................................ 10
Figure9.MDS8PTLEDDisplay................................................................................11
Figure 10. Circular Flow of Menus ............................................................................... 12
Figure 11. Alarm Range Option Diagram ..............................................................,.... 14
Figure 12. Alarm Scaling Diagram .............................................................................. 16
TABLE OF TABLES
TABLES
Table 1. IEC Symbols .................................................................................................. 1
Table 2. Model Features................................................................................................ 2
Table 3. Supporting Documents .................................................................................. 2
Table 4. Package Contents .......................................................................................... 3
Table 5. Optional Power Cords .................................................................................... 4
Table6.FrontPanelComponentsList........................................................................ 5
Table 7. Sensor Inputs Assignments ........................................................................... 6
Table 8. Rear Panel Component locations .................................................................. 9
Table9.CongurationforTerminals...........................................................................10
Table 10. Selecting an Input ........................................................................................ 13
Table11.BenchtopMeterSpecicationsSummary....................................................17
Table 12. Fuses ............................................................................................................ 18

1
The MDS8PT Platinum Series Universal Benchtop Digital Meter (Benchtop Meter), is ideal for
laboratory and other application uses requiring portable temperature or process measurement.
Itfeaturesauniversalinputconguredforusewithathermocouple,RTD,Thermistoror
Voltage/Currentsignal.TheBenchtopMeterisfactoryconguredandcalibratedforuseoutof
the box.
It is important to read and follow all precautions and instructions in this manual and other
referenced manuals, before operating or commissioning this device, as it contains important
information relating to safety and EMC.
1.1 Safety and Precautions
• Do not exceed the voltage rating.
• Always disconnect the power before changing the signal and power connections.
• Donotoperateinammableorexplosiveenvironments.
• Never operate with a power cord that is not properly rated for use with this unit.
• Remove and or disconnect main power cord before attempting any maintenance or
fuse replacement.
• Do not connect and/or operate this unit to a non-grounded or non-polarized outlet or
power source.
There are no user serviceable parts inside unit. Attempting to repair or
service unit may void the warranty.
This product is not designed for medical applications.
1.2 Cautions and IEC Symbols
This device is marked with international safety and hazard symbols shown in Table 1
below, in accordance with EN61010 3rd Edition 2012. It is important to read and follow
all precautions and instructions in this manual before operating or commissioning this
device as it contains important information relating to safety and EMC. Failure to follow
all safety precautions may result in injury and/or damage to the meter. Use of this device
inamannernotspeciedbythemanufacturermayimpairprotectiondevicesandsafety
features provided by the unit.
SECTION 1 INTRODUCTION
IEC SYMBOLS DESCRIPTION
CAUTION, risk of electrical shock
CAUTION, refer to accompanying documents
Table 1. IEC Symbols

2
1.3 Statement on Marking
OMEGApolicyistocomplywithallworldwidesafetyandEMI/EMCregulationsthat
applytoCECerticationstandards,includingEMCDirective2014/30/EULVD(Safety)
Directive2014/35/EU,andEEERoHSIIDirective2011/65/EU.OMEGAisconstantly
pursuingcerticationofitsproductstotheEuropeanNewApproachDirectives.OMEGA
will add the markingtoeveryapplicabledeviceuponvericationofcompliance.
1.4 Available Models
The Universal Benchtop Meter has two available models with features as listed in Table 2.
1.5. Communication
The Platinum Series Benchtop Meter uses a standard USB port compatible with the
OmegaPlatinumcongurationsoftware,availablefromtheOmega website; as well as
Optional serial and Ethernet connectivity manuals. All communication options support
both the Omega ASCII protocol, Modbus ASCII, Modbus RTU and Modbus TCP/IP.
Refer to Table 3 for supporting manuals.
1.6 Reference Manuals
Refer to these supporting documents for complete information about operation and
congurationoftheBenchtopMeter.
Model Features
MDS8PT-330-C24-EIP Benchtop Meter
-EIP Ethernet
-C24 Isolated RS232 and RS485
-330 Dual Alarm Relays
-A Isolated Analog Output
MDS8PT-330 Benchtop Meter
-330 DualAlarmRelays(ONLY)
Number Title
M5460 Platinum Series Temperature and Process Meters - User’s Manual
M5461 SoftwareConguration-User’sManual
M5451 Platinum Series Temperature and Process Controllers - User’s Manual
M5452 Serial Communication Protocol
M5458 Platinum Series User Manual - Modbus Interface
Table 3. Supporting Documentation
Table 2. Model Features

3
Read the packing list, it is important to verify all equipment shipped has been delivered as
shown in Figure 1 and Table 4.If there are any questions about the shipment please email or
call the Customer Service Department listed in this manual.
2.1 Inspection
Inspect the shipment container and equipment for any signs of damage. Record any
evidence of rough handling in transit and report any damage immediately to the shipping
agent.
Save packaging material and carton in the event that returns are necessary.
The carrier will not honor any damage claims unless all original shipping
material is saved for inspection.
Item Name Description
1 Unit MDS8PT Universal Benchtop Digital Meter
2 Cord AC Power Cord (Refer to Table 5 on page 4)
3Guide MQS5576(QuickStartGuide)
Figure 1. Accessories Packaged with MDS8PT Unit.
Table 4. Packing Contents.
SECTION 2 UNPACKING
2
1
3

4
2.2 Power Cords
Electrical power is delivered to the Benchtop Meter by an AC power cord to plug into the
IEC 60320 C-13 power socket located on the rear panel of the unit. Refer to Section 3.2
Figure 7 for detailed connections.
The input power is fused. Relay terminals must be limited to 30
VRMS and are fused on the common terminals.
The Benchtop Meter operates from 90 to 240 VAC, 50-60 Hz, 4W. A main power cord is
included at no charge with the order. Table 5 below, lists optional power cords.
PWR Cord Type Part Number PWR Rating
United Kingdom, Ireland Power Cord-UK 240V
Denmark Power Cord-DM 230V, 16A
USA, Canada, Mexico Power Cord-Molded 120V
Italy Power Cord-IT 230V, 16A
Continental Europe Power Cord E-10A 240V, 10A
Europe Power Cord E-16A 240V, 16A
Table 5. Optional Power Cords.

5
CU
CP +
CP -
PLATINUM TM Series
BENCHTOP
10 INPUTS 1
10
9
8
7
6
5
4
3 2
1
ThehardwareconnectionsandcongurationtooperatetheUniversalBenchtopDigitalMeter.
3.1 MDS8PT Front Panel
The controls, indicators and input connections of the Benchtop Meter
are shown in Figure 2.
Figure 2. MDS8PT Front Panel. (Not to scale)
Item Name Description
1 10-Pin Input Connector Process RTD and Thermistor Inputs
2 Display - Meter/Alarm Four-digit,three-color,LEDDisplay
3 Adjustable Feet Adjusts viewing angle.
4 Push Buttons Menu navigation
5 Universal Panel Jack (UPJ) Thermocouple Input
6 USB Port USB Port, Type A Female
SECTION 3 HARDWARE SETUP
12
3
4
5
6
Table 6. Front Panel Compnents List.

6
3.1.1 10-Pin Connector
Figure 3 shows the10-pin connector with corresponding input pin assignments.
Sensorselectionisrmware-controlled,andnojumpersettingsarerequiredto
switch between different sensor types.
Pin No. Code Description
1 ARTN Analog return signal (analog ground) for sensors.
2 AIN+ Analog positive input
3 AIN- Analog negative input
4 APWR Analog power (Only used for 4-wire RTDs)
5 - - Not Used
6 EXCT ExcitationvoltageoutputreferencedtoISOGND
7 DIN Digitalinputsignal(latchreset),positiveat>2.5,Ref.to
ISOGND
8ISOGND Isolated ground for serial communications, excitation,
and digital input
9 RX/A Serial communications receive
10 TX/B Serial communications transmit
Figure 3. 10-Pin Connector Input Pin Assignments.
Table 7 summarizes the universal input pin assignments for different sensor
inputs. Refer to Section 5-CongurationandProgramming,fordetailsto
program the unit for desired sensor settings.
Table 7. Sensor Inputs Assignments.
Pin
Number
Process
Voltage
Process
Current
2-Wire
RTD
3-Wire
RTD
4-Wire
RTD
Thermistor
1 Rtn ** RTD2- RTD2+
2 Vin +/- I+ RTD1+ RTD1+ RTD1+ TH+
3 I- RTD2- TH-
4 RTD1- RTD1- RTD1-
** Requires external connections to Pin-4.
10
9
8
7
6
5
4
3
2
1

7
3.1.2 RTD Wiring Diagram Connector
Figure 4 illustrates the wiring diagram for connecting a platinum RTD.
A two-wire RTD requires an external jumper from Pin 1 to Pin 4.
Figure 4. RTD Wiring Diagram.
Figure 5. 4-20 mA Sensor Wiring Diagram.
3.1.3 Process Current Wiring Diagram
Figure 5 illustrates the wiring diagram for connecting 4-20mA Sensor using
internal or external excitation. Refer to M5460 Section 4 for details on setting up
internal excitation.

8
3.1.4 Universal Thermocouple Connector
The Benchtop Meter accepts both Mini and Standard thermocouple connectors
using the Universal Panel Jack shown in Figure 6. The Benchtop Meter has
internal cold junction compensation and is compatible with thermocouples listed
in Table 7 on page 6.
Figure 6. Mini/Standard Thermocouple.

9
3.2 MDS8PT Rear Panel
The Rear Panel connections for the Benchtop Meter are shown in Figure 7 below.
Figure 7. MDS8PT Rear Panel. (Not to scale)
Item Name Description
1 ON/OFF Switch Turns the unit on
2 F1 (Fuse) Protects the AC power input
3 F2 (Fuse) Protects Alarm 1
4 F3 (Fuse) Protects Alarm 2
5 Ethernet Port (RJ45) 10/100Base-T
6Isolated Analog Terminal Analog Output
7ALARM1Terminal Alarm 1 Dual Throw Relay (Dry Contact)
8ALARM2Terminal Alarm 2 Dual Throw Relay (Dry Contact)
9 AC Main Input Plug IEC60320 C13, Power Socket.
12345
6
7
89
ETHERNET
F
U
S
E
F
U
S
E
F
U
S
E
F1
F2 F3
ALARM1
ALARM2
ISO ANALOG
O -
O / I
AC MAIN OUTPUT
90-240 VAC ~ 50 / 60 Hz
Table 8. Rear Panel Component locations.

10
3.2.1 Screw Terminals
Figure 8 shows the wiring confdigurations of the rear terminals connections for Alarms
and optional Isolated Analog terminals.
Figure 8. Benchtop Meter Wiring Diagram.
Table 9. Conguration for Terminals.
Terminal Numbers
Conguration 321
Alarms 1 and 2* Normally Open Relay Common Normally Closed
ISO Analog Analog Output Not Connected Analog Return
* 3A 30V Max Dry Contact
13
2
ALARMS 1 & 2
13
2
ISO ANALOG
+ -
0-24mA OUTPUT SOURCE
0-10V OUTPUT SOURCE

11
4.1 Controls
The UP Button moves up a level in the menu structure. Pressing and
holding the UP Button navigates to the top level of any menu (oPER,
PRoG, or INIt). This is a useful way of reorienting if you get lost in the
menu structure.
The LEFT Button moves across a set of menu choices at a given level.
When changing numerical settings, press the LEFT Button to make the
next digit (one digit to the left) active.
The RIGHT Button moves across a set of menu choices at a given
level. The RIGHT Button also increments numerical values. When
incrementing a digit past “9” it returns to “0”.
The ENTER Button selects a menu item and goes down a level. It also
enters a numerical value or parameter choice.
Figure 9. MDS8PT LED Display.
SECTION 4 CONFIGURATION AND PROGRAMMING

12
4.2 Menu Structure
The menu structure of the Platinum Series Display Meter is divided into three
mainLevel-1Modes:Initialization(INIt), Programming (PRoG) and Operations
(oPER).
Initialization Mode: These settings are rarely changed after initial set up. They
include transducer types, calibration, etc. These settings can be password
protected.
Programming Mode: These settings are frequently changed. They include set
points, Control Modes, Alarms, etc. These settings can be password protected.
Operating Modes: The setting of this mode allow users to switch between Run
Mode, Standby Mode, and Manual Mode etc.
ForadetaildiscussionofLevels2thru8,refertothePlatinumSeries
Temperature and Process Meters- User’s Manual (M5460).
Figure 10 illustrates how to use the LEFT and RIGHT Display Buttons to navigate around
a menu selection.
Figure 10. Circular Flow of Menus.
oPER
SP1
SP2
LRSTVALy
PEAk
Stby
RUN
Press the UP Button to
navigate back up a level
Cycle through any menu
in both directions
Press the ENTER Button on
oPER to select and enter
RUN Mode
Press the LEFT and RIGHT
Buttons to navigate around
the Operating Mode option

13
4.3 Selecting an Input
The Benchtop Meter features a User Programmable Universal Input. Select the input
type using TABLE 10. Initialization Mode Menu, below. Refer to Section 3.1.2 to 3.1.3
for Input Wiring Diagrams.
Level
1
Level
2
Level
3
Level
4
Level
5
Level
6
Level
7
Notes
INIT INPt t.C. k Type K thermocouple
J Type J thermocouple
tType T thermocouple
E Type E thermocouple
N Type N thermocouple
R Type R thermocouple
S Type S thermocouple
b Type B thermocouple
C Type C thermocouple
Rtd N.wIR 3 wI 3-wire RTD
4 wI 4-wire RTD
2 wI 2-wire RTD
A.CRV 385.1 385calibrationcurve,100Ω
385.5 385calibrationcurve,500Ω
385.t 385calibrationcurve,1000Ω
392 392calibrationcurve,100Ω
3916 391.6calibrationcurve,100Ω
tHRM 2.25k 2250Ωthermistor
5k 5000Ωthermistor
10k 10,000Ωthermistor
PRoC 4–20 Process input range: 4 to 20 mA
Note:
ThisManualandLiveScalingsubmenuisthesameforallPRoC ranges.
MANL Rd.1 ----- Lowdisplayreading
IN.1 ----- Manual input for Rd.1
Rd.2 ------ High display reading
IN.2 ----- Manual input for Rd.2
LIVE Rd.1 ----- Lowdisplayreading
IN.1 ----- LiveRd.1input,ENTERforcurrent
Rd.2 ----- High display reading
IN.2 ----- LiveRd.2input,ENTERforcurrent
0–24 Process input range: 0 to 24 mA
+-10 Process input range: -10 to +10 mA
+-1 Process input range: -1 to +1 mA
+-0.1 Process input range: -0.1 to +0.1 mA
Table 10. Selecting Inputs.

14
4.4 Alarm Conguration (PRoG > ALM. #)
ThePLATINUMSeriesBenchtopMetersupportstwoAlarms.EachAlarmcanbe
connected to an internal Single Pole Double Throw (SPDT) Mechanical Relay.
The Alarms are programmed using the Program Submenu. Alarm 1 and 2 have identical
defaultsettingsandsubmenuforconguringtheAlarmfunctions.Abriefoutlineof
Alarm settings is below.
Alarm Settings include:
Setting Alarm Function
tyPE Alarm type
ALR.H Alarm High parameter, used for Alarm trigger calculations.
ALR.L Alarm Low parameter, used for Alarm trigger calculations.
A.CLR Alarm Color indication.
ForamoredetaileddiscussionofsettingupandconguringtheAlarm
functions, refer to the Platinum Series Temperature and Process Meters -
User’s Manual (M5460).
4.4.1 Setting Alarm Type
Use the Alarm Type (tyPE) parameter to control the basic behavior of the
selected alarm.
Types Alarm Behavior
oFF Alarm is off (factory default)
AboV AlarmistriggeredwhentheprocessvalueexceedsALR.H.
bELo AlarmistriggeredwhentheprocessvalueislessthanALR.L.
HI.Lo AlarmistriggeredwhentheprocessvalueisoutsidetheALR.L–ALR.H.
bANd AlarmistriggeredwhentheprocessvalueiswithintheALR.L–ALR.H.
Figure 11. Alarm Range Option Diagram.

15
4.4.2 Setting Alarm High/Low References:
• AlarmHighReference(PRoG>ALM.#>ALR.H).
• AlarmLowReference(PRoG>ALM.#>ALR.L).
1. Use the button to select a digit to change;
2. Then select the button to increment the digit;
3. Save the setting with the button.
4.4.3 Setting the Alarm Color (PRoG > ALM.# > A.CLR)
The Benchtop Meter can change color in the display when an alarm is triggered.
The Alarm color options are listed below.
Setting Description
REd Alarm conditions are displayed in red. (Factory default)
AMbR Alarm conditions are displayed in amber.
GRN Alarms conditions are displayed in green.
dEFt Alarms do not display color.
4.4.4 Activating a Relay (PRog > dtR# > Mode)
To activate a relay when an alarm is triggered, change the output type of the
relaytothedesiredalarm.PRoG>DTR.#>Mode.
Setting Function
oFF Turn off the output channel. (Factory default)
ALM.1 Set the output to be an Alarm, activating when alarm conditions accord-
ingtotheALM.1congurationparametersareactive.
ALM.2 Set the output to be an Alarm, activating when alarm conditions accord-
ingtotheALM.2congurationparametersareactive.

16
4.5 Analog Output
TheoptionalAnalogOutputcanbeconguredtotransmitaVoltageorcurrentsignal
proportionaltotheInput.SelecttheoutputtypeinthePRog.>IAN.1>RNGEmenu.
Foramoredetaileddiscussionofsettingupandconguringthe
Analog Output. Refer to the Platinum Series Temperature and
Process Controllers - User’s Manual (M5451).
4.5.1 Select an Output Type
The scaling of input readings to output voltage or current is fully user
congurable.
Type Description
0-10 0 to 10 Volts (factory default)
0-5 0 to 5 Volts
0-20 0 to 20 mA
4-20 4 to 20 mA
0-24 0 to 24 mA
4.5.2 Set Mode to Retransmission
Enable the output by setting the mode to Retransmission
(PRog.>IAN.1>Mode>RtRN)
4.5.3 Set Scaling
The retransmission signal is scaled using the following 4 parameters. The unit
willdisplaytherstscalingparameter,Rd1, after RtRN is selected.
Setting Parameters
Rd1 Process reading 1; the process
reading that corresponds to the
output signal oUt1.
oUt1 The output signal that
corresponds to the process value
Rd1.
Rd2 Process reading 2; the process
reading that corresponds to the
output signal oUt2.
oUt2 The output signal that
corresponds to the process value
Rd2.
Figure 12. Alarm Scaling Diagram.