Page 1
KOBOLD Model MPT
DRAFT
Universal Panel Display
Operating Instructions
KOBOLD Instruments, Inc.
1801 Parkway
Pittsburgh, PA 15205
P +1.412.788.2830
www.koboldusa.com
View Drive
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KOBOLD Model MPT Operating Instructions
DRAFT
Disclaimer
The information contained in this document is subject to change
without notice. KOBOLD Instruments Inc. makes no representations
or warranties with respect to the contents hereof, and specifically
disclaims any implied warranties of merchantability or fitness for a
particular purpose.
Registered Trademarks
Modbus® is a registered trademark of Schneider Automation Inc. All
other trademarks mentioned in this document are the property of
their respective owners.
© 2016 KOBOLD Instruments Inc. All rights reserved.
INTRODUCTION
The KOBOLD Model MPT is a multipurpose, easy-to-use digital panel
meter. It accepts current, voltage, thermocouple, and RTD signals. The
four front panel buttons make the setup and programming an easy task.
The isolated 24 VDC transmitter power (optional) can be used to power
the input transmitter, the 4-20 mA output, or other devices.
The two relays (optional) can be used for alarm indication or process control
applications, such as pump alternation control.
Two relays and a 4-20 mA output are available together in the same meter.
The 4-20 mA isolated output and Modbus
options make the MPT an excellent addition to any system.
®
RTU serial communication
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KOBOLD Model MPT Operating Instructions
DRAFT
ORDERING INFORMATION
Standard Models
85-265 VAC
Model
MPT-11500 MPT-11300 No options
MPT-11510 24 V transmitter supply
MPT-11502 MPT-11302 2 relays
MPT-11512 2 relays & 24 V transmitter supply
MPT-11503 MPT-11303 4-20 mA output
MPT-11513 4-20 mA output & 24 V supply
MPT-11523 4-20 mA output & dual 24 V supplies
MPT-11514 2 relays, 4-20 mA output, & 24 V supply
Large Display Models
85-265 VAC
Model
MPT-12500 MPT-12300 No options
MPT-12510 24 V transmitter supply
MPT-12502 MPT-12302 2 relays
MPT-12512 2 relays & 24 V transmitter supply
MPT-12503 MPT-12303 4-20 mA output
MPT-12513 4-20 mA output & 24 V supply
MPT-12523 4-20 mA output & dual 24 V supplies
MPT-12514 2 relays, 4-20 mA output, & 24 V supply
Accessories
Model Description
PDA7232 RS-232 serial adapter with PDA7420 included
PDA7420 MPT meter copy cable, 7' (2.1 m)
PDA7422 RS-485 serial adapter with PDA7420 included
PDA7485-I RS-232 to RS-485 isolated converter
PDA7485-N RS-232 to RS-485 non-isolated converter
PDA8485-I USB to RS-422/485 isolated converter
PDA8485-N USB to RS-422/485 non-isolated converter
PDA8006 USB Serial Adapter
MeterView® Free MeterView® software download at www.koboldusa.com
12-36 VDC
Model
MPT-11304 2 relays & 4-20 mA output
12-36 VDC
Model
MPT-12304 2 relays & 4-20 mA output
Options Installed
Options Installed
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KOBOLD Model MPT Operating Instructions
DRAFT
Table of Contents
INTR
ODUCTION ------------------------------------------------------------ 2
ORDERING INFORMATION --------------------------------------------- 3
SPECIFICATIONS ---------------------------------------------------------- 7
General ------------------------------------------------------------------------------- 7
Process Input ---------------------------------------------------------------------- 8
Temperature Inputs -------------------------------------------------------------- 9
Relays Option -------------------------------------------------------------------- 10
Isolated 4-20 mA Transmitter Output ------------------------------------ 11
Serial Communications ------------------------------------------------------- 11
COMPLIANCE INFORMATION ---------------------------------------- 12
Safety ------------------------------------------------------------------------------- 12
Electromagnetic Compatibility --------------------------------------------- 12
SAFETY INFORMATION ------------------------------------------------ 13
INSTALLATION ------------------------------------------------------------ 14
Unpacking ------------------------------------------------------------------------- 14
Panel Mounting ------------------------------------------------------------------ 14
Connections ---------------------------------------------------------------------- 15
Connector Labeling ---------------------------------------------------------- 15
Power Connections ---------------------------------------------------------- 16
Signal Connections ---------------------------------------------------------- 16
Serial Communication ------------------------------------------------------- 20
Relays and 24 V Output Connections ----------------------------------- 20
Switching Inductive Loads -------------------------------------------------- 20
4-20 mA Output & Input Signal Connections -------------------------- 22
SETUP AND PROGRAMMING ---------------------------------------- 23
Front Panel Buttons and Status LED Indicators --------------------- 24
Display Functions and Messages ----------------------------------------- 25
Main Menu ------------------------------------------------------------------------ 28
Setting Numeric Values ------------------------------------------------------ 28
Setting Up the Meter (setu) ------------------------------------------------- 29
Setting the Input Signal (inpt) -------------------------------------------- 30
Setting the Decimal Point (dc.pt) ----------------------------------------- 31
Setting the Temperature Scale (F C) ---------------------------------- 31
Programming the Meter (prog) ------------------------------------------- 32
Scaling the Meter (scal) ---------------------------------------------------- 33
Calibrating the Meter (Cal) ------------------------------------------------- 35
Recalibrating Temperature Inputs (Cal) -------------------------------- 35
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KOBOLD Model MPT Operating Instructions
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Recalibrating Process Inputs (ICal) ------------------------------------- 36
Setting the Relay Operation (rely) -------------------------------------- 37
Relay and Alarm Operation ------------------------------------------------ 41
Pump Alternation Control Operation ------------------------------------- 46
Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 47
Program the Sensor Break Output Value (SEbr) --------------------- 48
Analog Output when Display is Out of Range ------------------------- 48
Setting Up the Password (pass) ------------------------------------------- 49
Locking the Meter ------------------------------------------------------------ 49
Unlocking the Meter ---------------------------------------------------------- 49
Advanced Features Menu ---------------------------------------------------- 50
Advanced Features Menu & Display Messages ---------------------- 51
Offset Adjustment (Adj) ----------------------------------------------------- 53
Noise Filter (fltr) ------------------------------------------------------------ 53
Noise Filter Bypass (byps) ------------------------------------------------- 54
Serial Communications (serl) -------------------------------------------- 54
Protocol Selection Menu (Prot) ------------------------------------------ 54
Select Menu (SElc) ---------------------------------------------------------- 55
Linear or Square Root Function (linr or Sqrt) ---------------------- 55
Low-Flow Cutoff (cutF) ----------------------------------------------------- 56
Display Intensity (inty) ----------------------------------------------------- 56
Meter Copy Function (Copy) ----------------------------------------------- 57
Internal Calibration (ICal) -------------------------------------------------- 59
OPERATION ---------------------------------------------------------------- 62
Front Panel Buttons Operation -------------------------------------------- 62
Maximum/Minimum Readings ---------------------------------------------- 63
MOUNTING DIMENSIONS ---------------------------------------------- 64
TROUBLESHOOTING ---------------------------------------------------- 65
Diagnostics Menu (diag) ----------------------------------------------------- 65
Determining Software Version -------------------------------------------- 65
Reset Meter to Factory Defaults ------------------------------------------- 66
Factory Defaults & User Settings ----------------------------------------- 67
Troubleshooting Tips --------------------------------------------------------- 69
QUICK INTERFACE REFERENCE GUIDE ------------------------- 70
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KOBOLD Model MPT Operating Instructions
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Table of Figures
Figure 1. Panel Cutout and Mounting ............................................... 14
Figure 2. Labeling for 2 Relay, Analog Out, & 24 V Supply Model . 15
Figure 3. Labeling for Analog Out & Two 24 V Supply Model ........ 15
Figure 4. Power Connections ............................................................ 16
Figure 5. Transmitter Powered by Ext. Supply or Self-Powered .... 16
Figure 6. Transmitters Powered by Internal Supply (Optional) ...... 17
Figure 7. Voltage Input Connections ................................................ 17
Figure 8. Thermocouple Input Connections .................................... 18
Figure 9. Three-Wire RTD Input Connections .................................. 18
Figure 10. Two-Wire RTD Input Connections ................................... 19
Figure 11. Four-Wire RTD Input Connections .................................. 19
Figure 12. Relay & 24 V Output Connections ................................... 20
Figure 13. AC and DC Loads Protection ........................................... 20
Figure 14. Low Voltage DC Loads Protection .................................. 21
Figure 15. 4-20 mA Output & Input Signal Powered by Meter ........ 22
Figure 16. 4-20 mA Output Powered Externally ............................... 22
Figure 17. Meter Copy Connection ................................................... 57
Figure 18. Meter Dimensions – Side View ........................................ 64
Figure 19. Case Dimensions – Top View .......................................... 64
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KOBOLD Model MPT Operating Instructions
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SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
DISPLAY Standard: 0.56" (14 mm), Large Display: 1.20" (31 mm),
DISPLAY INTENSITY Eight intensity levels
DISPLAY
UPDATE RATE
OVERRANGE
UNDERRANGE
PROGRAMMING
METHODS
NOISE FILTER Programmable from 2 to 199 (0 will disable filter)
RECALIBRATION All ranges are calibrated at the factory. Recalibration is
MAX/MIN
DISPLAY
PASSWORD Programmable password restricts modification of settings.
NON-VOLATILE
MEMORY
POWER
OPTIONS
FUSE Required fuse: UL Recognized, 5 A max, slow blow
ISOLATED
TRANSMITTER
POWER SUPPLY
NORMAL MODE
REJECTION
ISOLATION 4 kV input/output-to-power line
OVERVOLTAGE
CATEGORY
Four digits (-1999 to 9999), automatic lead zero blanking.
Process/RTD: 3.7-5/second
Thermocouple: 1.8-2.5/second
Display flashes
Display flashes
Four front panel buttons, PC and MeterView® software, or
cloning using Copy function
recommended at least every 12 months.
Max/min readings reached by the process are stored until
reset by the user or until power to the meter is turned off.
All programmed settings are stored in non-volatile memory
for a minimum of ten years if power is lost.
85-265 VAC, 50/60 Hz
90-265 VD
or
12-36 VDC, 12-24 VAC, 6 W max
See table for power consumption
(*x: number depends on option)
Up to 6 meters may share one 5 A fuse
One or two transmitter power supplies (Optional)
P or P1: 24 VDC ± 10% @ 200 mA max. (-xxx1x)
P1 & P2: 24 VDC ± 10% @ 200 mA & 40 mA max. (-xxx2x)
64 dB at 50/60 Hz
500 V input-to-output or output-to-P1/P2 supplies
-6R5 & -6X5 models only: 100 V output-to-24 VDC supply
Installation Overvoltage Category II:
Local level with smaller transient overvoltages than Installation Overvoltage Category III.
C, 20
9999
-1999
W max
7
Model Watts
MPT-1x50x 8
MPT-1x5{1,2}x 20
MPT-1x30x 6
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KOBOLD Model MPT Operating Instructions
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ENVIRONMENTAL Operating temperature range: -40 to 65°C
CONNECTIONS Removable screw terminal blocks accept 12 to 22 AWG
ENCLOSURE 1/8 DIN, high impact plastic, UL 94V-0, color: gray
MOUNTING 1/8 DIN panel cutout required. Two panel mounting bracket
TIGHTENING
TORQUE
OVERALL
DIMENSIONS
WEIGHT 9.5 oz. (269 g) (including options)
WARRANTY 3 years parts & labor
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
wire, RJ11 for serial communication adapters
assemblies provided
Screw terminal connectors: 5 lb-in (0.56 Nm)
2.45" x 4.68" x 4.19" (62 mm x 119 mm x 106 mm)
(H x W x D)
Process Input
INPUTS Field selectable:
ACCURACY ±0.05% of span ±1 count, square root: 10-100% FS
FUNCTION Linear or square root
LOW-FLOW
CUTOFF
TEMPERATURE
DRIFT
DECIMAL POINT Up to three decimal places for process inputs:
CALIBRATION
RANGE
INPUT
IMPEDANCE
INPUT
OVERLOAD
±20 mADC (0-20, 4-20 mA) and ±10 VDC (0-5, 1-5, 0-10 V)
0-9999 (0 disables cutoff function)
0 to 65°C ambient -40 to 0°C ambient
Current: ±0.20% FS (50 PPM/°C)
Voltage: ±0.02% FS (1.7 PPM/°C)
Current: ±0.80% FS
Voltage: ±0.06% FS
d.ddd, dd.dd, ddd.d, or dddd
An Error message will appear if input 1 and input 2 signals
are too close together.
Input Range Minimum Span
4-20 mA
±10 V
Voltage ranges: greater than 1 MΩ
Current ranges: 50 - 100 Ω
Current input protected by resettable fuse.
Fuse resets automatically after fault is removed.
Input 1 & Input 2
0.40 mA
0.20 V
(depending on resettable fuse impedance)
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KOBOLD Model MPT Operating Instructions
DRAFT
Temperature Inputs
INPUTS Field selectable: type J, K, T, or E thermocouples;
RESOLUTION
ACCURACY
Input Type Range Accuracy
Type J
Type K
Type T
Type T
0.1° Res
Type E
100 Ω RTD
COLD
JUNCTION
REFERENCE
OFFSET
ADJUSTMENT
INPUT
IMPEDANCE
SENSOR BREAK
DETECTION
100 Ω platinum RTD (0.00385 or 0.00392 curve)
1° or 0.1° for all RTD inputs. 1° for all thermocouples.
1° or 0.1° for Type T thermocouple
(0 - 65 C)
-58° to 1382° F
-50° to 7
-58° to 2300° F
-50° to 1
-292° to 700° F
-180° to
-199.9° to 700.0°
-180.0° t
-58° to 1578° F
-50° to 8
-328° to 1382°
-200° to 750°C
Automatic, fixed, no user calibration needed
Programmable to ±19.9°. This parameter allows the user to
apply an offset value to the temperature being displayed.
Greater than 100 kΩ
Open TC or RTD sensor indicated by display flashing oPEn.
All relays and alarm status LEDs go to alarm or non-alarm
state, programmable for each relay individually.
Analog output goes to the programmed sensor break value.
50°
C
260°
C
371°
C
o 371.0°
70°
C
F
±2°F
±1°C
±2°F
±1°C
±2°F
±1°C
±1.8°F
F
C
±1.0°C
±2°F
±1°C
±1°F
±1°C
Accuracy
(-40 - 0 C)
±5°F
±3°C
±4°F
±2°C
±13°F
±7°C
±13°F
±7.2°C
±11°F
±6°C
±5°F
±3°C
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KOBOLD Model MPT Operating Instructions
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Relays Option
RATING 2 SPDT (Form C); rated 3 A @ 30 VDC or 3 A @ 250 VAC
ELECTRICAL
NOISE
SUPPRESSION
DEADBAND 0-100% of full scale, user selectable
HIGH OR LOW
ALARM
RELAY
OPERATION
RELAY RESET User selectable via front panel buttons or PC
TIME DELAY 0 to 199 seconds, on and off delays
FAIL-SAFE
OPERATION
AUTO
INITIALIZATION
resistive load; 1/14 HP @ 125/250 VAC (50 watts) for inductive loads
A suppressor (snubber) should be connected to each relay
contact switching inductive loads to prevent disruption to the
microprocessor’s operation.
Recommended suppressor value: 0.01 µF/470 Ω, 250 VAC
(PDX6901).
User may program any alarm for high or low trip point.
Automatic (non-latching)
Latching
Pump alternation control
Automatic reset only (non-latching)
Automatic + manual reset at any time (non-latching)
Manual reset only, at any time (latching)
Manual reset only after alarm condition has cleared (latching)
Automatic reset: Relays will automatically reset when the in-
put passes the reset point.
Manual reset: Front panel ACK button. Pressing ACK re-
sets all manually resettable relays.
Programmable and independent for each relay
Programmable
Independent for each relay
When power is applied to the meter, relays will reflect the
state of the input to the meter.
Fail-safe operation: relay coil is energized in non-alarm condition. In
case of power failure, relay will go to alarm state.
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KOBOLD Model MPT Operating Instructions
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Isolated 4-20 mA Transmitter Output
OUTPUT RANGE 1.00 to 23.00 mA typical
CALIBRATION Factory calibrated for 4-20 mA
SCALING RANGE 0.00 to 23.99 mA for any display range,
ACCURACY ± 0.1% FS ± 0.004 mA
TEMPERATURE
DRIFT
ISOLATED
TRANSMITTER
POWER SUPPLY
EXTERNAL LOOP
POWER SUPPLY
OUTPUT LOOP
RESISTANCE
see output range above
0.4 uA/°C from -40 to 65°C ambient
Note: Analog output drift is separate from input drift.
One or two transmitter power supplies (Optional)
P1: 24 VDC ± 10% @ 200 mA max. (-1 option)
P1 & P2: 24 VDC ± 10% @ 200 mA & 40 mA max. (-2 option)
35 VDC maximum
Power supply Minimum Maximum
24 VDC
35 VDC (external)
10 Ω
100 Ω
700 Ω
1200 Ω
Serial Communications
METER
ADDRESS
BAUD RATE 300 – 19,200 bps
TRANSMIT
TIME DELAY
DATA 8 bit (1 start bit, 1 stop bit)
PARITY None (1 or 2 stop bits), even, or odd
BYTE-TO-BYTE
TIMEOUT
TURN AROUND
DELAY
Refer to PDC and Modbus Serial Communication Protocol manuals for
details. These can be downloaded from: www.koboldusa.com.
PDC protocol: 0 - 99
Modbus protocol: 1 - 247
Programmable between 0 and 199 ms
(Modbus only; PDC protocol does not use parity)
0.01 – 2.54 sec (Modbus only)
Less than 2 ms (fixed)
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KOBOLD Model MPT Operating Instructions
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COMPLIANCE INFORMATION
Safety
UL LISTED USA and Canada
UL FILE NUMBER E160849
FRONT PANEL UL Type 4X, NEMA 4X, IP65; panel gasket provided
LOW VOLTAGE
DIRECTIVE
Electromagnetic Compatibility
EMISSIONS
Radiated
Emissions
AC Mains
Conducted
Emissions
IMMUNITY
RFI - Amplitude
Modulated
Electrical Fast
Transients
Electrostatic
Discharge
RFI - Conducted
AC Surge
Surge
Power-Frequency
Magnetic Field
Voltage Dips
Voltage
Interruptions
UL 508 Industrial Control Equipment
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
EN 55011:2009 + A1:2010
Group 1 Class A ISM emissions requirements
Class A
Class A
EN 61326-1:2013
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
±2kV AC mains, ±1kV other
±4kV contact, ±8kV air
10V, 0.15-80 MHz, 1kHz 80% AM
±2kV Common, ±1kV Differential
1KV (CM)
30 A/m 70%V for 0.5 period
40%V for 5 & 50 periods
70%V for 25 periods
<5%V for 250 periods
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KOBOLD Model MPT Operating Instructions
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Note:
Testing was conducted on MPT Meters installed through the covers
of grounded metal enclosures with cable shields grounded at the
point of entry representing installations designed to optimize EMC
performance.
Declaration of Conformity available at www.koboldusa.com
SAFETY INFORMATION
!
CAUTION: Read complete
instructions prior to installation and operation of the
meter.
WARNING
Hazardous voltages exist within enclosure. Installation and service
should be performed only by trained service personnel.
WARNING: Risk of
electric shock.
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KOBOLD Model MPT Operating Instructions
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INSTALLATION
There is no need to remove the meter from its case to complete the installation, wiring, and setup of the meter.
Unpacking
Remove the meter from box. Inspect the packaging and contents for damage. Report damages, if any, to the carrier.
If any part is missing or the meter malfunctions, please contact
your supplier or the factory for assistance.
Panel Mounting
• Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm
x 45 mm). Refer to MOUNTING DIMENSIONS, page 64 for more
details.
• Clearance: allow at least 4" (102 mm) behind the panel for wiring.
• Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).
Recommended minimum panel thickness to maintain Type 4X
rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.
• Remove the two mounting brackets provided with the meter (back-off
the two screws so that there is ¼" (6.4 mm) or less through the
bracket. Slide the bracket toward the front of the case and remove).
• Insert meter into the panel cutout.
• Install mounting brackets and tighten the screws against the panel.
To achieve a proper seal, tighten the mounting bracket screws
evenly until meter is snug to the panel along its short side. DO NOT
OVER TIGHTEN, as the rear of the panel may be damaged.
Figure 1. Panel Cutout and Mounting
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KOBOLD Model MPT Operating Instructions
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Connections
All connections are made to removable screw terminal connectors
located at the rear of the meter.
Use copper wire with 60°C or 60/75°C insulation
for all line voltage connections. Observe all safety
regulations. Electrical wiring should be performed
in accordance with all applicable national, state,
and local codes to prevent damage to the meter
and ensure personnel safety.
Connector Labeling
The connectors label, affixed to the meter, shows the location of all connectors available with requested configuration. It also identifies the location of the RTD/TC selector switch. The below two images are common
connector configurations for the MPT. Note that the connector in the upper left of the diagram has two different configurations based on the
model.
RELAY2 RELAY1
4
6 5
3
COM NONO NC NC COM
RTD
TC
EXC T+ V+ mA+ COM
3 41 2 5
SIGNAL
2 1
RTD
SWITC H
24V OUT
2 1
P+ P-
1 2 3 4 5 6
TC
SERIAL
mA OUT
6 5
I
-I +
POWER
2 1
+
DW2206
Figure 2. Labeling for 2 Relay, Analog Out, & 24 V Supply Model
Figure 3. Labeling for Analog Out & Two 24 V Supply Model
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KOBOLD Model MPT Operating Instructions
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Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 2. The meter will operate regardless of DC polarity
connection. The + and - symbols are only a suggested wiring convention.
POWER CONNECTOR
12
+-
AC or DC
Required External Fuse:
5 A max, Slow Blow
Figure 4. Power Connections
Signal Connections
Signal connections are made to a five-terminal connector labeled
SIGNAL on Figure 2. The COM (common) terminal is the return for all
types of input signals.
Current and Voltage Connections
The following figures show examples for current and voltage connections.
There are no switches or jumpers to set up for current and voltage inputs.
Setup and programming is performed through the front panel buttons.
POWER
Figure 5. Transmitter Powered by Ext. Supply or Self-Powered
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KOBOLD Model MPT Operating Instructions
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Figure 6. Transmitters Powered by Internal Supply (Optional)
The current input is protected against current overload by a resettable
fuse. The display may or may not show a fault condition depending on
the nature of the overload.
The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself when the fault condition is removed.
Figure 7. Voltage Input Connections
The meter is capable of accepting any voltage from -10 VDC to +10 VDC.
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KOBOLD Model MPT Operating Instructions
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Thermocouple and RTD Connections
The following figures show examples for thermocouple and RTD connections.
The RTD/TC selector switch must be set to the proper position for the
meter to accept the selected temperature input.
The input type is selected using the Setup menu.
Selected thermocouple input must correspond to thermocouple sensor
and wire type used.
Figure 8. Thermocouple Input Connections
Figure 9. Three-Wire RTD Input Connections
T
he meter accepts two, three, or four-wire RTDs. The three-wire RTD
connection has built-in lead wire compensation.
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KOBOLD Model MPT Operating Instructions
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Figure 10. Two-Wire RTD Input Connections
Lead wire compensation for two-wire RTDs can be applied using the
Adjust menu. See Offset Adjustment (Adj), page 53.
Figure 11. Four-Wire RTD Input Connections
The four-wire RTD connection is similar to the three-wire. One of the
leads of a four-wire RTD is not connected, and may be clipped off.
The three-wire connection provides sufficient lead wire compensation to
provide accurate readings even with long leads.
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KOBOLD Model MPT Operating Instructions
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Serial Communication
Serial communication connection is made to an RJ11 connector labeled
SERIAL on Figure 2. Use PDA7232 for RS-232 interfacing.
Use PDA7422 for RS-485 interfacing.
Use PDA7420 for meter-to-meter interfacing for cloning purposes (i.e.
copying programmed settings from one meter to other meters).
Relays and 24 V Output Connections
Relay connections are made to a six-terminal connector labeled
RELAY1, RELAY2 on Figure 2. The COM (common) terminals of the relays should not be confused with the COM (common) terminal of the
SIGNAL connector. The 24 VDC output is available at the connector labeled 24V OUT, next to the relays connector.
Figure 12. Relay & 24 V Output Connections
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts. Suppression can be obtained with
resistor-capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:
C
C
R
Figure 13. AC and DC Loads Protection
20
R
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KOBOLD Model MPT Operating Instructions
DRAFT
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Inductive relay rating is 1/14 HP (50 W) at 115/230 VAC
2. Use capacitors rated for 250 VAC
RC networks may affect load release time of solenoid loads. Check to con-
3.
firm proper opera
4.
Install the RC network at the meter's relay screw terminals. An RC ne
may also be installed across the load. Experiment for best results.
Figure 14. Low Voltage DC Loads Protection
RC Networks Available from KOBOLD
RC networks are available from KOBOLD and should be applied to each relay
contact switching an inductive load. Part number: PDX6901.
Note:
Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
tion.
.
twork
Use a diode with a reverse
breakdown voltage two to
three times the circuit voltage and forward current at
least as large as the load
current.
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KOBOLD Model MPT Operating Instructions
DRAFT
4-20 mA Output & Input Signal Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled “mA OUT, I-, I+”. The 4-20 mA output may be
powered from an internal power supply (optional) or from an external
power supply.
SIGNAL CONNECTOR
mA+
V+ T+
EXC
21 354
COM
mA OUT
I-
6
I+
24V OUT
P1-
45 312
P2+
P2-P1+
-
2-Wire
4-20 mA
Transmitter
+
Remote Display,
Chart Recorder,
etc.
-
+
Figure 15. 4-20 mA Output & Input Signal Powered by Meter
mA OUT
I-
I+
56
External
Power
Supply
-
+
+
Remote Display,
Chart Recorder,
etc.
Figure 16. 4-20 mA Output Powered Externally
-
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KOBOLD Model MPT Operating Instructions
DRAFT
SETUP AND PROGRAMMING
Programming from a PC with MeterView®
KOBOLD’s free MeterView® software allows all MPT setup parameters
to be programmed from a PC (requires PDC protocol selection) and to
save the configuration settings to a file for reporting or programming
other meters. And since the serial adapter is an external device, one
serial adapter can program an infinite number of meters!
The MeterView screen shot above shows how the input is selected.
Notice there are tabs for Scaling, Relays/Alarms, Advanced, and Factory Values.
•
There is
ceived from the factory.
•
The meter is
put types, in milliamps, volts, and degrees respectively. T
calibr
no need to recalibrate
factory calibrated
ation equipment is certified to NIST standards.
the meter when first re-
prior to shipment, for all in-
he
Overview
There are no jumpers involved in the setup process of the meter. The
RTD/TC selector switch, located between the SIGNAL and SERIAL connectors, must be set accordingly for the meter to accept RTD or thermocouple inputs, Figure 2.
Setup and programming is done through the front panel buttons.
After power and signal connections have been completed and verified,
apply power to the meter.
QUICK INTERFACE REFER-
For
ENCE GUIDE
go to page 70
23
Page 24
KOBOLD Model MPT Operating Instructions
DRAFT
Front Panel Buttons and Status LED Indicators
Button
Description LED Status
Symbol
Menu
Right arrow/Reset
Up arrow/Max
Enter/Ack
•
Press the
any time.
•
Press the
programming.
•
Press the Up arrow button to scroll through the menus, decimal
poi
•
Press the
•
Press the
Menu
Features Menu
Menu
button to enter or exit the Programming Mode at
Right
arrow button to move to the next digit during digit
nt, or to increment the value of a digit.
Enter/Ack
Right
button for approximately 3 seconds to access the
button to access a menu or to accept a setting.
arrow and
of the meter.
1 Alarm 1
2 Alarm 2
S
R
Menu
button simultaneously or hold the
Set point indicator
(MPT-11xxx only)
Reset point indicator
(MPT-11xxx only)
Advanced
24
Page 25
KOBOLD Model MPT Operating Instructions
DRAFT
Display Functions and Messages
The meter displays various functions and messages during setup/programming and operation. The following table shows the displayed functions and messages with their action/setting description.
Display Parameter Action/Setting
setu
inpt
4-20
0-10
rtd
a385
A392
tC
0 J
1 k
2 T
3 t.0
4 E
f C
°F
°C
dec.p
prog
scal
Cal
inp1
dis1
inp2
Setup
Input
4-20 mA
0-10 VDC
RTD
Alpha 385
Alpha 392
TC
0 J
1 K
2 T
3 T.0
4 E
°
F or °C
°
F
°
C
Decimal point
Program
Scale
Calibrate
Input 1
Display 1
Input 2
Enter Setup menu
Enter Input menu
Set meter for 4-20 mA input
Set meter for ±10 VDC input
Set meter for RTD input
Set α = 0.00385 European curve 100Ω
RTD
Set α = 0.00392 American curve 100Ω RTD
Set meter for TC input
Type J
Type K
Type T
Type T, 0.1° resolution
Type E
Set temperature scale
Set meter to Fahrenheit
Set meter to Celsius
Set decimal point
Enter the Program menu
Enter the Scale menu
Enter the Calibrate menu
Calibrate input 1 signal or program input 1
value
Program display 1 value
Calibrate input 2 signal or program input 2
value
25
Page 26
KOBOLD Model MPT Operating Instructions
DRAFT
Display Parameter Action/Setting
dis2
err
RELY
RLY1
Act1
Auto
A-m
LtCH
L-CL
Altr
oFF
Set1
rSt1
RLY2
Act2
Set2
RSt2
FLSF
FLS1
on
off
FLS2
DLAY
DLY1
On1
OFF1
DLY2
Display 2
Error
Relay
Relay 1
Action 1
Automatic
Auto-manual
Latching
Latchingcleared
Alternate
Off
Set 1
Reset 1
Relay 2
Action 2
Set 2
Reset 2
Fail-safe
Fail-safe1
On
Off
Fail-safe2
Delay
Delay 1
On 1
Off 1
Delay 2
Program display 2 value
Error, calibration not successful, check signal
Enter the Relay menu
Relay 1 setup
Set relay 1 action (automatic, latching, etc.)
Set relay for automatic reset
Set relay for automatic + manual reset any
time
Set relay for latching operation
Set relay for latching operation with manual
reset only after alarm condition has cleared
Set relays for pump alternation control
Disable relay and front panel status LEDs
Disable relay’s fail-safe operation
Program set point 1
Program reset point 1
Setup relay 2
Set relay 2 action (automatic, latching, etc.)
Program set point 2
Program reset point 2
Enter Fail-safe menu
Set relay 1 fail-safe operation
Enable fail-safe operation
Disable fail-safe operation
Set relay 2 fail-safe operation
Enter Time Delay menu
Enter relay 1 time delay setup
Set relay 1 On time delay
Set relay 1 Off time delay
Enter relay 2 time delay setup
26
Page 27
KOBOLD Model MPT Operating Instructions
DRAFT
Display Parameter Action/Setting
On2
OFF2
brek
Brk1
Off
On
Brk2
Aout
Scal
Dis1
out1
Dis2
out2
SEbr
pass
unlC
loCd
9999
-1999
open
On 2
Off 2
Break
Relay 1 Break
Off
On
Relay 2 Break
Analog output
Scale
Display 1
Output 1
Display 2
Output 2
Sensor break
Password
Unlocked
Locked
Flashing display
Set relay 2 On time delay
Set relay 2 Off time delay
Set RTD/TC input break relay behavior
Set relay 1 input break relay behavior
Set relay to non-alarm condition at break
Set relay to alarm condition at break
Set relay 2 input break relay behavior
Enter the Analog output menu
Enter the Scale menu
Program display 1 value
Program output 1 value (e.g. 4 mA)
Program display 2 value
Program output 2 value (e.g. 20 mA)
Program TC or RTD sensor break value for
analog out
Enter the Password menu
Program password to lock meter
Enter password to unlock meter
Overrange condition
Underrange condition
Open TC or RTD sensor
27
Page 28
KOBOLD Model MPT Operating Instructions
A
DRAFT
Main Menu
The main menu consists of the most commonly used functions:
Password
and
•
Press
row button to scroll main menu
.
Menu
button to enter Programming Mode then press Up ar-
.
Setup
Run
Mode
9765 setu pass
•
Press
Menu
, at any time, to exit and return to Run Mode. Changes
o settings prior to pressing
made t
•
Changes to the settings are saved to memory only after pressing
Enter/Ack
•
The display moves to the next menu every time a setting is accepted by pressing
.
Enter/Ack
Enter/Ack
.
Setting Numeric Values
The numeric values are set using the
Press
Right
arrow to select next digit and
value.
The digit being changed is displayed brighter than the rest.
Press the
button to exit without saving changes.
Enter/Ack
button, at any time, to accept a setting or
Right
Up
are not saved.
and Up arrow buttons.
arrow to increment digit
Menu
Increment Digit
Value
0 4.00 04.00 0 5. 00
Select Next Digit
The decimal point is set using the
point
menu.
Up
arrow button in the
28
ccept Setting
Next
Setting
Setup-decimal
Page 29
KOBOLD Model MPT Operating Instructions
r
DRAFT
Setting Up the Meter (setu)
The
Setup
menu is used to select:
1. Input signal the meter will accept
2. Decimal point position for process inputs
°
F or °C) for temperature inputs
Unit
3.
4.
5.
s (
y operatio
Rela
n
4-20 mA analog output set up
Press the
Enter/Ack
button to access any menu or press Up arrow but-
ton to scroll through choices. Press the
R TD
Note:
Selecting R TD o
the Input menu will include the
Fahrenheit/Celsius menu in the
setup menu structure. RTD will
allow the selection of a decimal
point location after this menu and
TC has a fixed decimal point loca
tion and will not allow the selec tion of a decimal point location.
TC
TC mode from
-
Menu
button to exit at any time.
29
Page 30
KOBOLD Model MPT Operating Instructions
DRAFT
Setting the Input Signal (inpt)
Enter the Input menu to set up the meter to display current (4-20), voltage (0-10), thermocouple (tC), or RTD (rtd) inputs.
The voltage input is capable of accepting any signal from -10 to +10
VDC. Select voltage input to accept 0-5, 1-5, 0-10, or ±10 VDC signals.
The current input is capable of accepting any signal from -20 to 20 mA.
Select current input to accept 0-20 or 4-20 mA signals.
inpt
4-20 0-10 rtd tC
a385
Press Enter/Ack to
Make Selections
Press Up Arrow
to Scroll Through
Choices
Press Menu to
Exit at any Time
If RTD is selected, the display shows A385 or A392. Select the coefficient to match the RTD sensor, either 0.00385 (A385, European curve)
or 0.00392 (A392, American curve). The display then shows the decimal
point menu, DEc.P. Select the decimal point resolution as shown on page
31.
If TC is selected, scroll through the thermocouple types and select the
type matching the TC sensor.
The input signal must be connected to the appropriate input terminals
and the RTD/TC selector switch must be set, see Figure 8 on page 18.
For thermocouple inputs, allow at least 30 minutes warm-up
time for meter to reach specified accuracy.
a392
30
0 j
1 k
2 t
3 t.0
4 e
J
K
T
T.0
E
Page 31
KOBOLD Model MPT Operating Instructions
DRAFT
Setting the Decimal Point (dc.pt)
Decimal point for process inputs may be set with up to three decimal
places or with no decimal point at all.
Decimal point for RTD inputs may be set with 1 decimal place or none.
Decimal point for thermocouple inputs is fixed.
Pressing the Up arrow moves the decimal point one place to the right
until no decimal point is displayed, it then moves to the leftmost position.
Select Decimal
Point
Previous
Setting the Temperature Scale (F C)
The meter can be set to display temperature in degrees Fahrenheit or
Celsius.
Press Up arrow to change selection.
Press Enter/Ack to accept.
dec.p
dddd
31
Next
Page 32
KOBOLD Model MPT Operating Instructions
DRAFT
Programming the Meter (prog)
It is very important to read the following information, before proceeding
to program the meter:
• There is no need to recalibrate the meter when first received from
the factory.
• The meter is factory calibrated prior to shipment, for all input
types, in milliamps, volts, and degrees respectively. The calibration
equipment is certified to NIST standards.
• Use the Scale menu to scale process inputs (e.g. 4-20 mA). A cali-
brated signal source is not needed to scale the meter.
• For thermocouple and RTDs, just connect the sensor to the proper
terminals and turn the power on. No calibration needed! (when
the meter is first received from the factory).
The Program menu contains the Calibrate and the Scale menus.
Process inputs may be calibrated or scaled to any display within the
range of the meter.
prog ScAl
Additional parameters, not needed for most applications, are programmed with the Advanced Features menu, see Advanced Features
Menu, page 50.
32
CAL
Page 33
KOBOLD Model MPT Operating Instructions
DRAFT
Scaling the Meter (scal)
The process inputs (4-20 mA and ±10 VDC) can be scaled to display
the process in engineering units.
A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.
Press Enter to Accept Setting
scal
Press Up to Set Digit Value
Press Right to Select Next Digit
inp1
Press Menu to Exit at any Time
04.00
Set Input 1
Value
Note:
The Scale menu is not available for temperature inputs.
dis1 00.0
Set Display 1
Value
For instructions on how to program
numeric values see Setting Numeric
Values, page 28.
33
inp2
Scale
Input 2
Page 34
KOBOLD Model MPT Operating Instructions
DRAFT
Error Message (Err)
An error message indicates that the calibration or scaling process was
not successful.
After the error message is displayed, the meter reverts to input 1, allowing the appropriate input signals to be applied.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals or it is connected backwards.
2. Wrong signal selection in Setup menu.
3. Minimum input span requirements not maintained.
4. Input 1 signal inadvertently applied to calibrate input 2.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.
Input range Input 1 & input 2 span
4-20 mA 0.40 mA
±10 VDC
TC
RTD
0.20 VDC
100°F (56°C)
50°F (28°C)
34
Page 35
KOBOLD Model MPT Operating Instructions
DRAFT
Calibrating the Meter (Cal)
To scale the meter without a signal
source, refer to Scaling the Meter
(scal), page 33.
The meter can be calibrated to display the process in engineering units
by applying the appropriate input signal and following the calibration
procedure.
The use of a calibrated signal source is strongly recommended to calibrate the meter.
See Scaling the Meter for Button
Functions Description
Cal
inp1 dis1 04.00
Remember, the meter is calibrated at the factory prior to shipment. Recalibration is recommended at least every twelve months.
The Calibration (CAL) menu is used to recalibrate the thermocouple and
RTD inputs.
Display
Flashes
Accepting
Input
Recalibrating Temperature Inputs (Cal)
Allow at least 30 minutes warm-up time
before performing recalibration proce-
dure to ensure specified accuracy.
Set Display 1
Value
35
inp2
Calibrate
Input 2
Page 36
KOBOLD Model MPT Operating Instructions
DRAFT
Recommended Calibration Points
To recalibrate the meter, it is recommended to use the Fahrenheit scale;
this will give a greater degree of accuracy to the calibration. The scale
can be changed to the Celsius scale after calibration is completed. The
meter will display temperature accurately in any scale. The following table shows the recommended low and high calibration points for all
types.
Type of input
Type J T/C
Type K T/C
Type T T/C
Type T T/C
Type E T/C
100 Ω RTD
(0.00385)
100 Ω RTD
(0.00392)
Input 1
(Low)
32
32
32
32.0
32
32°F
100
32°F
100
Input 2
(High)
°F 1182°F 600°F
°F 1893°F 960°F
°F 693°F 360°F
°F 693.0°F 360.0°F
°F 1652°F 840°F
1148°F
Ω
320.12
1127°F
Ω
320.89
Ω
Ω
Check
(Middle)
590
°F
215.61
580
°F
215.87
Ω
Ω
Recalibration Procedure for Temperature Inputs
1. Connect signal to the meter using the appropriate wire (e.g. type J
thermocouple
Set up the meter to accept the selected input (e.g. type J T/
2.
page 30.
3. Set up the meter to display temperature in degrees Fahrenheit, see
page 31.
Apply signal corresponding to input 1 (32°F) and program display 1
4.
32, see page 35.
5.
Apply signal corresponding to input 2 (1182°F for type J) and progra
display
After the meter accepts input 2, the display flashes the message
6.
that indicates the meter is sensing the cold junction reference. This
completes the re
wire to recalibrate type J input), see page 18.
2 accordingly, see page 35
calibration procedure for the sele
.
C), see
to
m
CJr
cted input.
Recalibrating Process Inputs (ICal)
The Internal Calibration (ICAL) menu, located in the Advanced features
menu, is used to recalibrate the current and voltage inputs. Recalibration is recommended at least every twelve months.
Refer to Internal Calibration (ICal), page 59 for instructions.
36
Page 37
KOBOLD Model MPT Operating Instructions
DRAFT
Setting the Relay Operation (rely)
This menu allows you to set up the operation of the relays:
1. Relay action
a. Automatic reset only (non-latching)
b. Automatic + manual reset at any time (non-latching)
c. Latching (manual reset only)
d. Latching with Clear (manual reset only after alarm condi-
tion has cleared)
e. Pump alternation control (automatic reset only)
f. Off (relay and status LED disabled)
2. Set point
3. Reset point
4. Fail-safe operation
a. On (enabled)
b. Off (disabled)
5. Time delay
a. On delay (0-199 seconds)
b. Off delay (0-199 seconds)
6. Break Condition Behavior
a. Off (non-alarm condition)
b. On (alarm condition)
From Setup
Menu
Refer to page 25 for a
description of Display
Functions and Messages
rELY
rLY1 rLY2
Same
Act1
Functions as
Relay 1
SEt1
rSt1
Press Enter/Ack button to access any menu
Press Menu button to exit at any time
FLSF
FLS1
FLS2
37
dLAY
dLy1
dLY2
brek
brk1
brk2
Page 38
KOBOLD Model MPT Operating Instructions
DRAFT
Setting the Relay Action
The relays’ Action menu allows the user to set up the operation of the
relays. The relays may be set up for any of the following modes of operation:
1. Automatic reset (non-latching)
2. Automatic + manual reset at any time (non-latching)
3. Latching (manual reset only, at any time)
4. Latching with Clear (manual reset only after alarm condition
has cleared)
5. Pump alternation control (automatic reset only)
6. Off (relay and status LED disabled)
The following graphic shows relay 1 action setup; relay 2 is set up in a
similar fashion.
From Relay 1
Menu
Press
Press
Enter/Ack
button to accept setting
Menu
button to exit at any time
Act1
Auto A-m
LtCH
L-CL
ALtroFF
Programming Set and Reset Points
High alarm indication: program set point above reset point.
Low alarm indication: program set point below reset point.
The deadband is determined by the difference between set and reset
points. Minimum deadband is one display count. If set and reset points
are programmed the same, relay will reset one count below set point.
SEt1
rSt1
Program Set
Point
Program Reset
Point
38
Quick Set Points
Press Up arrow and Menu
at the same time to access
set/reset points quickly.
Page 39
KOBOLD Model MPT Operating Instructions
DRAFT
Setting Fail-Safe Operation
The fail-safe operation is set independently for each relay. Select on to
enable or select off to disable fail-safe operation.
Press
FLSF
Press
Enter/Ack
Menu
button to accept setting
button to exit at any time
FLS1
FLS2
Programming Time Delay
The On and Off time delays may be programmed for each relay between 0 and 199 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.
The On time delay is associated with the set point.
The Off time delay is associated with the reset point.
on oFF
on oFF
Program On
Time Delay
Program Off
Time Delay
39
Page 40
KOBOLD Model MPT Operating Instructions
DRAFT
Setting Sensor Break Condition
The sensor break relay condition may be programmed for each relay as
On (alarm) or Off (non-alarm). The relays will enter these states when a
sensor break is detected for RTD or thermocouple inputs. These settings have no effect when current or voltage inputs are selected.
40
Page 41
KOBOLD Model MPT Operating Instructions
DRAFT
Relay and Alarm Operation
The following graphs illustrate the operation of the relays, status LEDs,
and ACK button.
High Alarm Operation (Set > Reset)
or Manual reset mode, ACK can be pressed anytime to turn "off" relay.
F
For relay to turn back "on", signal must go below set point, and then go
above it.
41
Page 42
KOBOLD Model MPT Operating Instructions
DRAFT
Low Alarm Operation (Set < Reset)
or Manual reset mode, ACK can be pressed anytime to turn "off" relay.
F
For relay to turn back "on", signal must go above set point, and then go
below it.
42
Page 43
KOBOLD Model MPT Operating Instructions
DRAFT
Time Delay Operation
The following graphs show the operation of the time delay function.
On
If the signal crosses the set point, the
relay trips when the time delay has elapsed. If the signal drops below
the set point (high alarm) before the time delay has elapsed, the
time delay timer resets and the relay does not change state. The same
principle applies to the
* Note:
The LED is not affected by Time Delay when
Manual”
and reset points.
Off
time delay.
reset mode is selected. Rather the LED follows the set
time delay timer starts and the
“Automatic or
43
On
Page 44
KOBOLD Model MPT Operating Instructions
DRAFT
High Alarm with Fail-Safe Operation (Set > Reset)
Fail-safe operation:
case of power failure, relay will go to alarm state.
relay coil is energized in non-alarm condition. In
44
Page 45
KOBOLD Model MPT Operating Instructions
DRAFT
Low Alarm with Fail-Safe Operation (Set < Reset)
Fail-safe operation:
case of power failure, relay will go to alarm state.
relay coil is energized in non-alarm condition. In
45
Page 46
KOBOLD Model MPT Operating Instructions
DRAFT
Pump Alternation Control Operation
46
Page 47
KOBOLD Model MPT Operating Instructions
DRAFT
Scaling the 4-20 mA Analog Output (Aout)
The 4-20 mA analog output can be scaled to provide a 4-20 mA signal
for any display range selected.
No equipment is needed to scale the analog output; simply program the
display values to the corresponding mA output signal.
Depending on the version of meter purchased, the
may not appear in the
the factory via the
the Advanced Features Menu see page 50.
The
Analog Output menu is used to program:
1. 4-20 mA output based on display values
2. Sensor break value in mA
Setup menu. This menu is enabled or disabled at
Advanced Features menu. For more information on
Analog Output menu
Aout
Press Enter to Accept Setting
scal
Press Up to Set Digit Value
Press Right to Select Next Digit
dis1
Press Menu to Exit at any Time
00.00
Set Display 1
Value
out1 04.00
Set Output 1
Value
For instructions on how to program
numeric values see
Values
Setting Numeric
, page 28.
47
dis2
Scale
Output 2
Page 48
KOBOLD Model MPT Operating Instructions
DRAFT
Program the Sensor Break Output Value (SEbr)
The sensor break value corresponds to the output signal generated
when the meter detects a sensor break for thermocouple and RTD inputs.
For example, if there is an open thermocouple, the meter displays the
message “
break value (e.g. 3.00 mA).
The sensor break value can be programmed from 0.00 to 23.99.
The typical output signal range is 1.00 to 23.00 mA (e.g. If sensor break
value is programmed to 0.00, the actual output will not be greater than
1.00 mA).
open” and the analog output goes to the programmed sensor
Press Enter to Accept Setting
Aout
scal
sEbr
Analog Output when Display is Out of Range
The analog output reflects the display out of range conditions as follows:
Input Condition Display Analog Output
Underrange Flashing -1999 3.00 mA
Overrange Flashing 9999 21.00 mA
Open TC or RTD Flashing open Sensor break value
Press Up to Set Digit Value
Press Right to Select Next Digit
Press Menu to Exit at any Time
03.00
Set Sensor
Break Value
48
Program
Menu
Page 49
KOBOLD Model MPT Operating Instructions
DRAFT
Setting Up the Password (pass)
The Password menu is used to program a four-digit password to prevent unauthorized changes to the programmed parameter settings.
Locking the Meter
Enter the Password menu and program a four-digit password.
For instructions on how to program numeric values see Setting Numeric
Values, page 28.
Run Mode
pass unlC 0000
Program
Password
Record the password for future reference. If appropriate, it may be recorded in the space provided.
Model:
Serial Number:
Password: __ __ __ __
Unlocking the Meter
If the meter is password protected, the correct password must be entered in order to make changes to the parameter settings.
pass loCd 0000
Enter
Password
loCd
Run Mode
unlC
49
Page 50
KOBOLD Model MPT Operating Instructions
DRAFT
Entering the correct four-digit number sets the password to 0000, disabling the protection.
Changes to the programmed parameter settings are allowed only with
the password set to 0000.
If the password entered is incorrect, the meter displays
for about two seconds, then it returns to Run Mode. To try again, press
Enter/Ack while the Locked message is displayed.
LoCd (Locked)
Forgot the Password?
The password may be disabled by the following
procedure:
1.
Note display reading prior to pr
button. Ignore decimal point and sign.
2. Access the
reading and enter that number as the passwor
(e.g. displa
Password menu, add 2 to the noted
y reading = -1.23, password = 0125).
essing the Menu
d
Advanced Features Menu
To simplify the setup process, functions not needed for most applications are located in the
Press the
Menu button for approximately 3 seconds to access the
tures Menu
Right arrow and Menu button simultaneously or hold the
of the meter.
Advanced Features menu.
Advanced Fea-
Press Simultaneously
*
adj
fltr
byps
serl
* Available for temperature inputs only
* * Available for process inputs only
Press Enter/Ack to Access
Menu or to Accept Setting
Press Up to Scroll Menu and
to Increment Digit Value
Press Right to Select Next Digit
Press Menu to Exit at any Time
Copy
SELc
50
**
I Cal
diag
Page 51
KOBOLD Model MPT Operating Instructions
s
s
DRAFT
Advanced Features Menu & Display Messages
Display Parameter Action/Setting
adj
fltr
byps
serl
prot
PDC
mbs
addr
baud
trdE
prty
tbyt
Copy
send
done
Selc
Func
Linr
Sqrt
cutF
out
Aout
rEly
Aout
Yes
no
Inty
Adjust
Filter
Bypass
Serial
Protocol
PDC
Modbus
Address
Baud rate
Transmit delay
Parity
Byte-to-byte
Copy
Send
Done
Select
Function
Linear
Square root
Cutoff
Output
Analog output
Relay
Analog output
Yes
No
Intensity
Set offset adjustment for temperature, not
available for process inputs
Set noise filter value
Set filter bypass value
Set serial communication parameters
Enter the Protocol menu
Select PDC protocol
Select Modbus protocol
Set meter address
Select baud rate
Set transmit delay for serial communication
Select none, even, or odd (Modbus only)
Program byte-to-byte timeout
(silent time – Modbus only)
Enter copy function
Send meter settings to another meter
Copy function completed
Enter the Select menu (function, cutoff, out)
Select linear or square root function
Set meter for linear function
Set meter for square root extraction
Set low-flow cutoff
Set meter for either relay or analog output
(factory set only – only included in certain model
Set meter for analog output option
Set meter for relay option
Enable or disable analog output
(factory set only – only included in certain model
Enable analog output
Disable analog output
Select display intensity
51
Page 52
KOBOLD Model MPT Operating Instructions
DRAFT
Display Parameter Action/Setting
ICal
Curr
I lo
I Hi
volt
Vlo
VHi
diag
led
CJC
Cfg
pts
RELY
Aout
GoFF
SErL
Info
Initial calibration
Current
I low
I high
Volt
V low
V high
Diagnostics
LED
CJC
CFG
Points
Relays
Analog output
Gain/offset
Serial
Information
Enter initial calibration for process inputs
Calibrating current input
Calibrate low current input
Calibrate high current input
Calibrating voltage input
Calibrate low voltage input
Calibrate high voltage input
Display parameter settings
Test display
Display cold junction compensation voltage
Display meter configuration
Display calibration points for process inputs
Display relay settings
Display analog output settings
Display gain and offset for process inputs
Display serial communication settings
Display software version and S/N information
52
Page 53
KOBOLD Model MPT Operating Instructions
DRAFT
Offset Adjustment (Adj)
This parameter allows the user to select an offset adjustment to the
temperature being displayed. Offset adjustment values can be either
positive or negative and can be any number within
adjustment value is programmed through the
The offset adjustment feature can be useful to compensate for errors
due to thermocouple junctions or excessive lead wire resistance in
RTDs.
The offset adjustment value is automatically reset to zero whenever the
type of temperature sensor is changed (
curve).
Celsius/Fahrenheit conversion of the offset adjustment value is automatic, see note 2 below for important limitations.
Notes:
1. Offset adjustment is available only when TC or RTD input is selected.
2. If adjustment value is greater than 11
scale is ch
ment will be 19.9
Noise Filter (fltr)
Most applications do not require changing this parameter. It is intended
to help attain a steady display with an unsteady (noisy) input signal.
The field selectable noise filter averages any minor or quick changes in
the input signal and displays the reading with greater stability.
Increasing the filter value will help stabilize the display, however this will
reduce the display response to changes on the input signal.
The filter level may be set anywhere from 2 to 199.
Setting filter value to zero disables filter function, and bypass setting be-
comes irrelevant.
anged to Fahrenheit, the maximum applied adjust-
°F.
i.e. Thermocouple type or RTD
±19.9°. The offset
Adjust menu.
°C and the temperature
53
Page 54
KOBOLD Model MPT Operating Instructions
DRAFT
Noise Filter Bypass (byps)
The meter can be programmed to filter small input changes, but allow
larger input changes to be displayed immediately, by setting the bypass
value accordingly.
If the input signal goes beyond the bypass value, it will be displayed immediately with no averaging done on it.
The noise filter bypass value may be set anywhere from 0.2 to 99.9. It
corresponds to percentage of full scale for process inputs and to degrees Fahrenheit for temperature inputs.
Increasing the bypass value may slow down the display response to
changes on the input signal.
Serial Communications (serl)
The meter is equipped with serial communications capability as a standard feature using PDC Serial Communication Protocol. The Modbus
RTU protocol is included on all models after 5/1/2010. To communicate
with a computer or other data terminal equipment, an RS-232 or RS-485
adapter option is required; see
tails.
Ordering Information on page 3 for de-
Serl Prot
When using more than one meter in a multi-drop mode, each meter
must be provided with its own unique address. The address may be programmed from 00 to 99 for PDC protocol and from 1 to 247 for Modb us
protocol. The transmit delay may be set between 0 and 199 ms (see Serial Communication Adapter manual for more details).
The MPT can also be connected directly to another MPT meter through
a cable assembly (PDA7420). This allows the user to copy all the settings from one meter to another, using the
Protocol Selection Menu (Prot)
The Protocol selection menu is used to select either the PDC or the
Modbus protocol.
Addr
54
bAud trde
Copy function.
Page 55
KOBOLD Model MPT Operating Instructions
DRAFT
Select Menu (SElc)
The Select menu is used to select linear or square root function, display
intensity, and low-flow cutoff. Selection for relay or analog output is a
factory setting depending on the option installed.
• Output options are installed
and set
up at the factory.
• Changing the output selec-
tion will cause erroneous operation.
Note:
Depending on meter model, the Select menu
will display either out or Aout. In either case,
the output selection menu is for factory use
only. Do not attempt to change output selection.
Linear or Square Root Function (linr or Sqrt)
Meters are set up at the factory for linear function. The linear function
provides a display that is linear with respect to the input signal.
The square root function is used to linearize the signal from a differential
pressure transmitter and display flow rate in engineering units.
Advanced
Features
Press Enter to Accept Setting
SELc
Func
Linr
55
Sqrt
Page 56
KOBOLD Model MPT Operating Instructions
DRAFT
Low-Flow Cutoff (cutF)
The low-flow cutoff feature allows the meter to be programmed so that
the often-unsteady output from a differential pressure transmitter, at low
flow rates, always displays zero on the meter.
The cutoff value may be programmed from 0 to 9999. Below the cutoff
value, the meter will display zero. Programming the cutoff value to zero
disables the cutoff.
Next
Menu Item
Display Intensity (inty)
The Display Intensity function allows the selection of eight levels of intensity for various lighting conditions.
Advanced
Features
SELc
Func
inty
Press Enter to Accept Setting
Press Up to Select Value
Press Menu to Exit at any Time
int3
Select Display
Intensity Level
56
Next
Page 57
KOBOLD Model MPT Operating Instructions
DRAFT
MeterView® Software
KOBOLD’s MeterView® software allows the MPT to be programmed
from a PC and to act as a data logger.
MeterView
for reporting, restoring, or programming other meters.
See
Note: PDC protocol must be selected to communicate with MeterView®.
The Copy function is used to copy (or clone) all the settings from one
meter to other meters requiring exactly the same setup and programming (
®
software allows all setup parameters to be saved to a file
Ordering Information, page 3 to order MeterView
Meter Copy Function (Copy)
i.e. type of input, scaling, decimal point, filter, bypass, etc.).
Figure 17. Meter Copy Connection
®
software.
Copy Function Requirements
To successfully copy settings from one meter to another, both meters must have:
1. Same software version
2. Same baud rate setting
3. PDC protocol selected
See Determining Software Version,
page 65 for instructions.
57
Page 58
KOBOLD Model MPT Operating Instructions
DRAFT
Meter Cloning Instructions
NOTICE!
1. Connect the two meters using cable assembly PDA7420 or equiva-
e.g. Digi-Key P/N H1663-07-ND). Cable should not exceed
lent (
7
' (2.1 m).
2. Power up both meters. Leave Clone meter in Run Mode.
3.
Ent
vanced Features Menu
4. Scroll
Enter/Ack.
5.
The meter displays the message
play flashes while sending data. The message
w
hen copying is completed.
Advanced
Features
Advanced Features Menu of the Master meter, see Ad-
er the
to
Copy function using Up arrow button then press
Copy send
Press
Menu
to Exit and
Return to Run Mode
Do not connect the two meters to
the same 4-20 mA loop while
cloning. Internal calibration may
be affected.
, page 50.
Send. Press Enter/Ack, the dis-
done is displayed
Display
Flashes While
Sending
done
6. The Clone meter displays the memory address being prog
t
hen the message
tializes and returns to Run Mode using the same settings as t
Master.
7.
If meter to be cloned does not respond to the data being sent, refe
to
Copy Function Requirements above.
done when copying is completed. The meter ini-
58
rammed
he
r
Page 59
KOBOLD Model MPT Operating Instructions
DRAFT
Internal Calibration (ICal)
• There is no need to recalibrate the meter
w
hen first received from the factory.
• The meter is factory calibrated prior to
shipment, for all input types, in milli
volts, and degrees respectively. The calibration equipment is certified to NI
st
andards.
he internal calibration allows the user to scale the meter without apply-
T
ing a signal. This menu is not available if the meter is set up for TC or
RTD inputs.
The use of calibrated signal sources is necessary to perform the internal
calibration of the meter.
Check calibration of the meter at least every 12 months. Each input type
must be recalibrated separately, if meter will be used with all input
types.
Notes:
• If meter is in operation and it is intended to
accept only one input type (e.g. 4-20 mA),
recalibration of other inputs is not necessary.
• Allow the meter to warm up for at least
utes before performing the internal cali-
15 min
bration procedure.
amps,
ST
T
he
Internal calibration menu is part of the Advanced Features Menu.
1. Press the Right arrow
Menu button for approximately 3 seconds to access the
Features Menu
Press
2.
3.
the
Up arrow button to scroll to the Internal calibration menu
and pr
ess
Enter/Ack.
The meter displays either current (
ing to the meter input setup. Press
tion process.
and Menu button simultaneously or hold the
of the meter.
Curr) or voltage (volt), accord-
Enter/Ack to start the calibra-
59
Advanced
Page 60
KOBOLD Model MPT Operating Instructions
DRAFT
Example for current input internal calibration:
4. The meter displays Low input current (I lo). Apply the low input
signal and press
while meter is accepting the low input.
5. After the display stops flashing, a number is displayed with the leftmost digit brighter than the rest. The bright digit is the active digit
that can be changed by pressing the
Right arrow button to move to the next digit.
Set the display value to correspond to the input signal being cali-
6.
brated.
7. The display moves to the high input calibration (
hig
h input signal and press
Set the display for the high input calibration in the same way as it
8.
was set for the low input calibration.
Enter/Ack. The display flashes for a moment
Up arrow button. Press the
I Hi). Apply the
Enter/Ack.
For instructions on how to pro-
gram numeric values see Setting Numeric Values
, page 28.
I Cal
Set Display Value
Curr
for Low Input
I lo 04.00
T
he graphic above shows the calibration of the current input. The volt-
age input is calibrated in a similar way.
Display
Flashes
While
Accepting
Input
60
I Hi
Calibrate
High Input
Page 61
KOBOLD Model MPT Operating Instructions
DRAFT
Tips:
Low and high input signals can be any valid values within the
•
e of the meter.
rang
• Observe minimum input span requirements between input 1
and i
nput 2.
• Low input must be less than high input signal.
Error Message (Err)
An error message indicates that the calibration or scaling process was
not successful.
After the error message is displayed, the meter reverts to input 1, allowing the appropriate input signals to be applied.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals, or it is connected backwards.
2. Wrong signal selection in
Minimum input span requirements not maintained.
3.
Minimum Input Span
The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.
Setup menu.
Input range Input 1 & input 2 span
4-20 mA 0.40 mA
±10 VDC
0.20 VDC
61
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KOBOLD Model MPT Operating Instructions
DRAFT
OPERATION
For process inputs, the meter is capable of accepting positive and negative signals and displaying these signals in engineering units from -1999
to 9999 (
to 10.00).
The temperature inputs are displayed according to the input type and
temperature units (
puts can be displayed with either 1
Front Panel Buttons Operation
e.g.
a signal from -10 to +10 VDC could be displayed as -10.00
°
F or °C) selected. RTD and Type T thermocouple in-
°
or 0.1° resolution.
Button
Symbol
Description
Press to ente
view settings, or exit Max/Min readings
Hold to enter Advanced features menu.
to reset Max/Min readings
Press
Press to displ
alternately
Press to displ
indefinitely while displaying Max/Min
Press ACK to acknowledge relays
r or exit Programming Mode,
ay Max/Min readings
ay Max/Min reading
62
Page 63
KOBOLD Model MPT Operating Instructions
DRAFT
Maximum/Minimum Readings
The main function of the front panel buttons during operation is to display the maximum and minimum readings reached by the process or
temperature inputs.
Actual
Reading
2468 Hi lo
9846 200
10 Sec Time Out
Press Up to Display and to
Toggle Between Max & Min
Press
Press
Enter
to Hold Max/Min
Right
to Reset Max/Min
Press
1. Press
2.
3. Press
4. If
5.
Up arrow/Max button to display maximum reading since the
last reset/power-up.
Up arrow/Max again to display the minimum reading since
Press
he last reset/power-up.
t
Enter/Ack to hold Max/Min display reading, the meter will
inue to track new Max/Min readings.
cont
Enter/Ack is not pressed, the Max/Min display reading will time
out
after ten seconds and the meter will return to display the act
ing.
read
Right arrow/Reset button to reset Max/Min while reading is
Press
ng displayed. Max/Min display readings are reset to act
bei
ing.
read
Menu
to Exit Max/Min
63
ual
ual
Page 64
KOBOLD Model MPT Operating Instructions
DRAFT
MOUNTING DIMENSIONS
1.76"
(45mm)
2.45"
(62mm)
64
3.2"
(81mm)
3.6"
(91mm)
0.59"
(15mm)
Figure 18. Meter Dimensions – Side View
Figure 19. Case Dimensions – Top View
Page 65
KOBOLD Model MPT Operating Instructions
DRAFT
TROUBLESHOOTING
Due to
the many features and functions of the meter, it’s possible that
the setup of the meter does not agree with what an operator expects to
see. If the meter is not working as expected, refer to the
menu and consult the recommendations described below.
Diagnostics Menu (diag)
The Diagnostics menu is located in the Advanced Features Menu, to ac-
Diagnostics menu see Advanced Features Menu, page 50.
cess
It provides an easy way to view the programmed parameter settings for
troubleshooting purposes. Press the
tings and the
For a description of the diagnostics messages
Menu & Display Messages, page 51.
To determine the software version of a meter:
1. Go to the
2. Press
3. Press
Menu button to exit at any time.
Determining Software Version
Diagnostics menu (diAG) and press Enter/Ack but-
ton.
Up arrow/Max button and scroll to Information menu
Info).
(
Enter/Ack to access the software number (SFT), version
UER). Write down the information as it is displayed. Continue
(
pressing
Enter/Ack until all the information is displayed.
Enter/Ack button to view the set-
see Advanced Features
Diagnostics
65
Page 66
KOBOLD Model MPT Operating Instructions
DRAFT
Reset Meter to Factory Defaults
When the parameters have been changed in a way that is difficult to determine what’s happening, it might be better to start the setup process
from the factory defaults.
Instructions to load factory defaults:
1. Enter the Advanced Features Menu. See Advanced Features
, page 50.
Menu
Press
2.
3.
4. The meter goes through an initialization sequence (same as
Up arrow to go to Diagnostics menu
Press and hold
Enter/Ack when display flashes reset.
N
ote: If
Enter/Ack is not pressed within three seconds, display re-
turns to
po
Diagnostics menu.
wer-up), and loads the factory default settings.
Right arrow/Reset for five seconds, press
on
Press Simultaneously
Flashing
Display
diag
rset
Meter Re-
Initializes
Press and Hold
for 5 Sec
66
Page 67
KOBOLD Model MPT Operating Instructions
DRAFT
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the meter. Next to the factory setting, the user
may record the new setting for the particular application. MeterView
software allows the saving of all meter parameters to a file for restoring
meter settings, reporting, and copying settings to other meters.
Model: ______________ S/N: _______________ Date: _________
®
Parameter Display Default Setting User
Input type
Decimal point
Programming
Input 1
Display 1
Input 2
Display 2
Relay 1
Action 1
Set 1
Reset 1
Relay 2
Action 2
Set 2
Reset 2
Fail-safe
Fail-safe 1
Fail-safe 2
Time delay
On delay 1
Off delay 1
inpt
dd.dd
prog
InP1
Dis1
InP2
Dis2
Rly1
Act1
Set1
RSt1
Rly2
Act2
Set2
RSt2
flsf
Fls1
Fls2
dlay
On1
Off1
Setting
4-20 mA
2 places
4.00 mA
4.00
20.00 mA
20.00
Automatic
7.00
6.00
Automatic
10.00
9.00
Off
Off
0 sec
0 sec
67
Page 68
KOBOLD Model MPT Operating Instructions
DRAFT
Parameter Display Default Setting User
Setting
On delay 2
Off delay 2
Break 1
Break 2
Password
Advanced
Features
Adjust
Filter
Bypass
Serial settings
Protocol
Address
Baud rate
Trans delay
Function
Cutoff value
Output option
Display intensity
Modbus defaults N/A
Address
Parity
Byte-to-byte timeout*
*Note:
The byte-to-byte timeout setting might be updated automatically depending on the baud rate selected and the previous timeout setting. The
minimum timeout allowed is saved to memory if a lower value is entered
(e.g. If user enters 0.00 with a baud rate of 300, 0.06 is saved).
On2
Off2
Brk1
Brk2
pass
N/A
Adj
fltr
byps
serl
pdC
addr
baud
trde
Func
CutF
out/Aout
inty
addr
prty
tbyt
0 sec
0 sec
Off
Off
0000 (unlocked)
0.0° (temp only)
10
0.2
PDC protocol
00
2400
10 ms
Linear
0.00 (disabled)
Factory set only
Level 8
247
Even
0.01 sec
68
Page 69
KOBOLD Model MPT Operating Instructions
DRAFT
Troubleshooting Tips
Symptom Check/Action
No display at all
Not able to change setup or programming,
Meter displays error message during calibration (
Meter displays
• open
• 9999
• -1999
•
Display alternates between
1.
2.
Display response is too slow
Inaccurate temperature reading
If the display locks up or the meter
does not respond at all
Relay operation is reversed
Relay and status LED do not
respond to signal
Meter not communicating with MeterView
Other symptoms not described
above
LoCd is displayed
err)
Displays negative number,
not responding to RTD.
Hi and a number
Lo and a number
®
or other programs
Check power at power connector
Meter is locked, enter correct four-digit
password to unlock
Check:
1. Signal connections
2. Input selected in
3. Minimum input span requirements
Check:
1. Input selected in
2. TC/RTD Switch position
3. Corresponding signal at Signal
connector
Menu to exit Max/Min
Press
display readings.
Check filter and bypass values
Check:
1. Temperature units (
2. TC type or RTD curve selected
3.
Offset adjustment
TC w
4.
5. Calibration
Cycle the power to restart the
microprocessor.
Check:
1. Fail-safe in
2. Wiring of relay contacts
Check:
1. Relay action in
2. Set and reset points
Check:
1. Serial adapter and cable
2. Serial protocol selected
3. Meter address and baud rate
4. MeterView address and baud rate
Call Technical Support for
ass
ire used
istance at 1.800.998.1020
Setup menu
Setup menu
°F or °C)
Setup menu
Setup menu
69
Page 70
KOBOLD Model MPT Operating Instructions
DRAFT
QUICK INTERFACE REFERENCE GUIDE
Run Mode
Setup
Password
Locked Unlocked
Display
Max/Min
Input
TC or RTD?
Yes No
F or C
Program
Relays
Analo g
output
4-20 mA
0-10 V
F
C
RTD or Type T
Relay 1
Relay 2
Failsafe
Delays
Scale
Sensor
break
To Password
RTD
TC
No Yes
Decimal
Point
Type K
Type T.0
Type E
d . ddd
dd . dd
ddd . d
Acti on
Set point
Reset point
Failsafe 1
Failsafe 2
Delay 1
Delay 2
A385
A392
Type J
Type T
dddd
To Delays
TC or RTD?
Yes No
Auto
Auto & Manual
Latch
Latch w/Clear
Pump Alt
Off
On
Off
To Program
Scale
Calibrate
To Relays
To
Set point
70
Page 71
KOBOLD Model MPT Operating Instructions
DRAFT
Pushbutton Function
Menu Go to Programming Mode or leav e Programming, Advanced
Right Arrow Move to next digit.
Up Arrow Move to next selection or increment digit.
Enter/Ack Accept selection/value and move to next selection.
Right Arrow & Menu simultaneously enters Advanced Features
Max/Min Mode
While in Run Mode, pressing Up Arrow will initiate Max/Min Mode. Up Arrow
toggles between Max & Min displays, and Right Arrow resets the Max/Min to the
current value. Press Menu or wait 10 seconds to return to Run Mode. Pressing
Enter/Ack will disable the 10 second timeout and continuously display Max or Min.
Features, and Max /Min Modes.
Press Right arrow and Menu
to access Advanced Features
Menu
TC or RTD?
Yes No
Adjust
Filter
Bypass
Serial
Copy Send
Select
TC or RTD?
Yes No
Initial
Calibrate
Diagnostics
Advanced
Features
Function
Cutoff
Output
Intensity
When the meter is locked, Adjust,
Filter and Bypass can only display
their settings, and the Copy and
ICAL functions are not available.
Operational Modes
Right Arrow & Menu
(or hold Menu for 3 sec)
Run
Menu
Menu
Program
Linear
Sq. Root
Menu
Up Arrow
Protocol
Address
Baud
TX Delay
Modbus?
No Yes
Parit y
Byte-to-byte
timeout
Max &
Min
Menu
Modbus
PDC
71
Page 72
KOBOLD Model MPT Operating Instructions
DRAFT
KOBOLD Instruments, Inc.
1801 Parkway View Drive
Pittsburgh, PA 15205
PH +1.412.788.2830
www.koboldusa.com
SFT031 & SFT077 Ver 3.300 & up
LIM765KI_A
02/16
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