LAUREL LAUREATE 2 Series User manual
- 2 -
1. ORDERING GUIDE
Configure a model number in this format: L20201DCV1, CBL01
L…Digital panel meter with
screw terminal connectors.
Display Color
1............. DPM with green LED
2................. DPM with red LED
3....Extended DPM, green LED
4........Extended DPM, red LED
Note: Extended adds rate of
change & linearization of non-
linear inputs. Not applicable to
thermocouple or RTD inputs.
Power
0.....85-264 Vac or 90-300 Vdc
1.........10-48 Vdc or 12-32 Vac
Setpoint Output
0......................................None
1............Two 8A contact relays
2............ Two solid state relays
3...........Four 8A contact relays
4............Four solid state relays
Analog Output
0......................................None
1..... 4-20 mA, 0-10V, -10/+10V
Digital Interface
0......................................None
1....................................RS232
2....................................RS485
4......................RS485-Modbus
5.......................................USB
6.........USB-to-RS485 gateway
7.................................Ethernet
8...Ethernet-to-RS485 gateway
Input Type
DC Volts
DCV1 ..................... 200.00 mV
DCV2 ........................2.0000 V
DCV3 ........................20.000 V
DCV4 ........................200.00 V
DCV5*.........................600.0 V
DCV6 ..........................300.0 V
DC Amperes
DCA1....................2.0000 mA
DCA2....................20.000 mA
DCA3....................200.00 mA
DCA4.........................5.000 A
RTDs
P385C ..Pt100, -202 to 850°C
P385F..Pt100, -331 to 1562°F
P392C. .Pt100, -202 to 850°C
P392F..Pt100, -331 to 1562°F
N672C. ...Ni120, -80 to 260°C
N672F... Ni120, -112 to 500°F
C427C. ....Cu10, -97 to 260°C
C427F.... Cu10, -143 to 500°F
Thermocouples
JC.................... -210 to 760°C
JF...................-347 to 1400°F
KC................. -244 to 1372°C
KF...................-408 to 2501°F
TC....................-257 to 400°C
TF.....................-430 to 752°F
EC ................. -240 to 1000°C
EF...................-400 to 1830°F
NC................. -245 to 1300°C
NF...................-410 to 2370°F
SC ...................-46 to 1768°C
SF.....................-51 to 3214°F
RC...................-45 to 1768°C
RF.....................-49 to 3213°F
Resistance / Ohms
R0.......0-2 ohms (fixed range)
R1...................0-20.000 ohms
R2...................0-200.00 ohms
R3.................0-2.0000 kohms
R4.................0-20.000 kohms
R5.................0-200.00 kohms
R6....0-2 Mohms (fixed range)
Process Signals
(4-20 mA, 0-10V, etc.)
P.............4-20 mA = 0-100.00
P1……………Custom Scaling
Specify min signal & reading,
max signal & reading.
RMS Volts
RMV1....................200.00 mV
RMV2.......................2.0000 V
RMV3.......................20.000 V
RMV4.......................200.00 V
RMV5* .......................600.0 V
RMV6.........................300.0 V
RMS Amperes
RMA1....................2.0000 mA
RMA2....................20.000 mA
RMA3....................200.00 mA
RMA4.........................5.000 A
Load Cells (6-wire ratio)
WM1….….-99,999 to +99,999
Specify min input signal & dis-
played reading, and max input
signal & displayed reading.
Full-scale inputs 20.000 mV to
500.00mV, 10 Vdc excitation.
Options & Accessories
BL.........Blank lens, no
button pads.
CBL01 ..RJ11-to-DB9 RS232
cable. Connects me-
ter to PC com port.
CBL02 ..USB-to-DB9 adap-
ter. For use with
CBL01.
CBL05 ..USB-cable. Type A
male to Type B
male.
IPC........NEMA-4 panel
cover.
BOX1....NEMA4 wall mount
enclosure.
BOX2....BOX1 plus IPC.
CASE1..Benchtop case for 1
meter.
CASE2..Benchtop case for 2
meters.
* Range not ETL certified
- 3 -
2. TABLE OF CONTENTS
1. Ordering Guide ........................................................................................................... 2
2. Table of Contents......................................................................................................... 3
3. Product Introduction..................................................................................................... 4
4. Receiving & Unpacking................................................................................................ 5
5. Safety Considerations.................................................................................................. 5
6. Connector Wiring Information ...................................................................................... 6
7. Mechanical Assembly.................................................................................................. 8
8. Front Panel Setup Keys............................................................................................... 10
9. Enabling & Locking Out Menu Items............................................................................12
10. Meter Scaling Theory...................................................................................................13
11. DC Volts, Amps, Process, Strain Input ........................................................................14
12. Load Cell & Microvolt Input..........................................................................................19
13. AC RMS Volts & Amps Input .......................................................................................24
14. Thermocouple Input.....................................................................................................30
15. RTD & Resistance Input ..............................................................................................34
16. Dual & Quad Relay Output Options ............................................................................39
17. Analog Output Option .................................................................................................. 42
18. Serial Communication Options ....................................................................................43
19. Excitation Output & Power Supply............................................................................... 48
20. Instrument Setup Via PC .............................................................................................49
21. Custom Curve Linearization.........................................................................................52
22. Meter Calibration.......................................................................................................... 54
23. Specifications...............................................................................................................55
24. Glossary of Terms........................................................................................................ 59
25. Warranty...................................................................................................................... 64
- 4 -
3. PRODUCT INTRODUCTION
Our digital panel meters are versatile, cost effective solutions to a wide variety of monitoring
and control applications. Depending on the choice of signal conditioner, they are easily set up
for an accurate display of temperature, pressure, flow, weight, voltage or current, all in appro-
priate engineering units and with zero and span adjustment when needed. Setup can be viafront
panel pushbuttons or the meter’s serial interface. Selective security lockout of the front panel
keys protects against accidental changes to meter setup.
High read rates up to 60 per second (50 for 50 Hz operation) are made possible by Concurrent
Slope Conversion, which integrates the signal over an AC power line cycle for maximum noise
rejection. High read rates provide accurate peak and valley capture, and quick response for
control applications. An adaptive digital filter supplies a time constant for the encountered signal
noise level yet responds rapidly to changes that exceed a selected threshold. Self-calibration
occurs automatically after every 17th reading.
The standard built-in power supply is a high-voltage switching supply that operates from
worldwide AC power or from 90-300 Vdc. A low-voltage supply is optional for power from 24
Vdc, 10-48V batteries, or 12-30 Vac. Both supplies provide an isolated 5, 10 or 24Vdc transducer
excitation output.
The meter case conforms to the 1/8 DIN size standard and fits in a 45 x 92 mm panel cutout. It
is made of high impact, 94V-0 UL-rated plastic and is watertight to NEMA-4 (IP65) when panel
mounted. Mounting is from the front of the panel and requires less than 110 mm behind the
panel. Power and signal wiring is via removable plugs conforming to UL61010C safety stan-
dards. All output options are isolated from meter and power ground to 250 Vac.
Extended meter versions can linearize nonlinear inputs. Up to 180 data points may be linear-
ized by a computer program that stores setup parameters in nonvolatile memory. Extended
meters can also display time rate of change.
Alarm or setpoint control can be provide by an optional board with 2 or 4 relays. These can
be 8A mechanical or 120 mA solid state relays. The setpoints may be latching or non-latching,
be energized above or below the setpoint, or operate in a fail-safe mode. The relays can operate
from the filtered signal to reduce relay chatter or from the unfiltered signal for fastest response.
An isolated analog output of 4-20 mA, 0-20 mA, 0-10V or -10 to +10V can be provided by an
optional analog output board. The output is linearized to the display and can operate from the
filtered or unfiltered signal input. It can be scaled via front panel pushbuttons or the meter’s serial
interface.
USB, RS232 or RS485 communications are available with the Modbus RTU protocol or
Laurel’s simpler Custom ASCII protocol. RS485 operation allows up to 32 meters to be daisy-
chained over long distances with no need for a hub. A USB-to-RS485 gateway board allows up
to 32 meters to be interfaced to a PC via a single USB cable.
Ethernet communications are supported by two versions of an Ethernet board, both of which
support the Modbus TCP protocol. An Ethernet-to-RS485 gateway board allows up to 32 meters
to be interfaced to a network via a single Ethernet cable.
Meter programming can be via the meter’s front panel or a PC running Windows based
Instrument Setup software. A communication board is required in the meter but can be removed
following meter setup.
- 5 -
4. RECEIVING & UNPACKING
Your meter was carefully tested and inspected prior to shipment. Should the meter be damaged
in shipment, notify the freight carrier immediately. In the event the meter is not configured as
ordered or the unit is inoperable, return it to the place of purchase for repair or replacement.
Please include a detailed description of the problem.
5. SAFETY CONSIDERATIONS
Warning: Use of this equipment in a manner other than specified may impair the protection
of the device and subject the user to a hazard. Visually inspect the unit for signs of damage. If
the unit is damaged, do not attempt to operate.
Caution:
•The unit must be connected to a Disconnect switch or a branch-circuit breaker, which must
be in a suitable location
•This unit must be powered by 85-264 Vac with the high voltage power supply option, or
10-48 Vdc (12-32 Vac) with the low voltage power supply option. Verify that the proper power
option is installed for the power to be used. This meter has no On/Off switch. It will be in
operation as soon as power is connected.
•The 85-264 Vac power connector (P1 Pins 1-3) is colored Green to differentiate it from other
input and output connectors. The 12-32 Vac (10-48 Vdc) power connector is colored Black.
•Do not make signal wiring changes or connections when power is applied to the instrument.
Make signal connections before power is applied. If reconnection is required, disconnect
power before such wiring is attempted.
•To prevent electrical or fire hazard, do not expose the instrument to excessive moisture.
•Do not operate the instrument in the presence of flammable gases or fumes; such an
environment constitutes a definite safety hazard. This meter is designed to be mounted in a
metal panel or a bench or wall mount style case. The spacing around the meter and the
ventilation must be sufficient to maintain the ambient temperature at less than 55C.
•Verify the panel cutout dimensions, and mount according to instructions.
Symbols used
Caution (refer to accompanying documents)
Earth (ground) terminal.
Caution, risk of electric shock.
Both direct & alternating current.
Equipment protected throughout by double
insulation or reinforced insulation.
Operating environment:
The meter is Class II (double insulated) equipment designed for use in Pollution degree 2.
- 6 -
6. CONNECTOR WIRING INFORMATION
CONNECTORS
Connectors for signal and power are UL-rated
screw-clamp terminal blocks that plug into
mating jacks on the printed circuit board.
Communication connectors are a single RJ11
plug for RS232, dual RJ11 plugs for RS485,
dual RJ45 plugs for RS485 Modbus, or USB.
Warning: Hazardous voltages may be present
on pins 4, 5 & 6 of P1 since digital ground is tied
to pin 3 of P5 (-Signal Input). Keep pin 3 close to
earth ground to minimize common mode voltage
or shock hazard at pins 4, 5 & 6 of P1.
Note: The functions of control inputs 1 & 2
of P1 are menu selectable.
For 4-wire load cell connection, jumper
1 to 2, 5 to 6 at the meter.
- 7 -
P3 - SERIAL COMMUNICATIONS P4 - ANALOG OUTPUT
- 8 -
7. MECHANICAL ASSEMBLY
REMOVING THE REAR PANEL
First remove any connectors. Use one hand to press in the two sides of the rear of the case,
and the other hand to press down the two protruding tab releases at the top of the rear panel
(see figure below). This will unhook the rear panel from the case.
Rear Panel
REMOVING THE ELECTRONICS & INSTALLING OPTION BOARDS
With the rear panel removed, the
electronic assembly will easily slide
out through the rear of the case.
Options boards plug into the main
board at the front of the meter.
These are plug-and-play and may
be installed in the field. New boards
will be recognized by the meter soft-
ware for access to the appropriate
menu items. You may need to
remove rear panel knockouts to fit
new boards.
Note: When an optionboard is installed correctly, the top and bottom edges of themain board
and option board are aligned. Misaligned boards will burn out the electronics.
Option Board
Main Board Plug
Rear Panel Jack
Power supply
Relay board
Serial interface board
Analog output board
Signal conditioner board
P11
P12
P13
P14
P15
J1
J2
J3
J4
J5
REASSEMBLING YOUR METER
Slide the electronics assembly back into the case until the display board is seated flush
against the front of the case. Insert the bottom tabs of the rear panel into the case, and then
carefully align the board connectors with the openings in the rear panel. Ensure that all option
Retaining tab
with tab release
Retaining tab
with tab release
Retaining tab
Retaining tab
- 9 -
boards are properly aligned with the molded board retaining pins on the inside of the rear
panel. Once the rear panel is in place, reinstall the input/output screw clamp terminal plugs.
PANEL MOUNTING
Slide the meter into the 45 x 92 mm 1/8 DIN panel cutout.
Ensure that the provided gasket is in place between the
front of the panel and the back of the meter bezel.
The meter is secured by two pawls, each held by a screw.
Turning a screw clockwise extends the pawl outward.
Turning the screw clockwise further tightens it against the
panel to secure the meter.
Turning a screw counterclockwise loosens the pawl and
retracts it into its well. This allows the meter to be inserted
into the panel cutout for installation, or to be removed from
the panel cutout following installation.
Note: In no case should a screw be removed from its pawl. Doing so would cause the screw
and pawl to fall off and likely get lost.
Dimensioned case drawings
- 10 -
8. FRONT PANEL SETUP KEYS
Meter Front Panel
There are four front panel keys, which change function for the Run Mode and Menu Mode,
effectively becoming eight keys. The keys are labeled with alphanumeric captions (MENU,
PEAK, RESET, ALARMS) for the Run Mode and with symbols ( right arrow,
right triangle, up triangle, left arrow) for the Menu Mode.
FRONT PANEL LOCKOUT
The Menu Mode may not work with meters as received from the factory, because menu items
have been disabled in software. Disabling causes menu items not to appear in the menu
sequence. To enable menu items, change their lockout status under Loc 1, Loc 2 and Loc 3
from “0” (locked or disabled) to “1” (unlocked or enabled), as explained in Section 9 of this
manual. Also ensure that the lockout jumper is not installed, as explained in that same section.
The paragraphs below assume that all menu items have been unlocked.
MENU MODE KEY ACTION
In the Menu Mode, pressing a key momentarily advances to the next menu item. Holding
down a key automatically advances through multiple menu items for fast menu navigation.
KEYS IN RUN MODE
MENU Key. Pressing MENU from the Run Mode enters the Menu Mode. Pressing MENU
repeatedly will step the meter through the various menu items (if these have not been
locked out) and then back to the Run Mode.
PEAK Key. Pressing PEAK normally causes the peak value of the input signal to be
displayed. The peak display then blinks to differentiate it from the normal present value
display. Pressing PEAK again returns the display to the present value. The PEAK key
can also be programmed to display Valley, alternating Peak or Valley, or to Tare the
reading to zero. When Peak or Valley is selected, periodic horizontals bars at the top of
the display indicate Peak, and periodic horizontals bars at the bottom indicate Valley.
RESET Key. Pressing RESET with PEAK resets peak and valley values. Pressing
RESET with ALARMS resets latched alarms. Pressing RESET with MENU performs a
meter reset (same as power on). Meter reset can also be applied via a rear panel connect
or a serial ASCII command.
- 11 -
ALARMS Key. Pressing ALARMS once displays the setpoint for Alarm 1. Pressing it
again displays the setpoint for Alarm 2. Pressing it again returns to the present value.
KEYS IN MENU MODE
Right Arrow Key (MENU). Pressing steps the meter through all menu items that
have been enabled and then back to the Run Mode. With the DC signal conditioner board
and no option boards, available menu items are _InPut, SEtuP, ConFG, _FiLtr, dEc.Pt,
SCALE, OFFst, Loc 1, Loc 2, Loc 3. If a change has been made to a menu item, that
change is saved to non-volatile memory when the key is pressed next, and StoreE is
displayed briefly.
To return the meter to the run mode after StoreE has been displayed, you can press the
key repeatedly to step through all top-level menu selections until rESEt is displayed
briefly. As a shortcut, to return to the run mode after StoreE has been displayed, you can
press then simultaneously. Again, rESEt will be displayed briefly.
Right Triangle Key (Digit Select).
•Pressing from the InPut menu brings up all meter functions available with the meter's
signal conditioner. For example, for the DC signal conditioner board, these are _dC U,
_dC A and _rAtio.
•Pressing from the SEtuP, ConfFG, FiLtr, SCALE, OFFSt, Loc 1, Loc 2 or Loc 3
menus items sequentially selects digit positions 1 - 5, as indicated by a flashing digit:
00000, 00000, 00000, 00000, 00000.
•Pressing from the dEC.Pt menu item sequentially selects decimal point positions,
which will flash: d.dddd dd.ddd ddd.dd dddd.dddddd..ddddd.
Up Triangle Key (Value Select). Pressing for a flashing item (digit position or decimal
point position) will increment that item. Pressing will save any changes, and StoreE
is displayed briefly.
Left Arrow Key (Reverse Menu). Pressing has the same effect as pressing ,
except that menu items are brought up in reverse order. Pressing repeatedly will
backtrack to the previous menu items all the way to meter rESEt and return to the run
mode.
- 12 -
9. ENABLING & LOCKING OUT MENU ITEMS
For security reasons and ease of meter operation, any or all menu
items can be disabled or "locked out" so that they are no longer
accessible from the front panel. Each function to be disabled can
be set to "1" under menu headers Loc 1-3, while each function to
be enabled can be set to "0."
Access to the menu headers Loc 1-3 can be disabled by installing
a hardware jumper “a” on the power supply board. With the jumper
installed, the operator no longer has access to the menu headers
Loc 1-3. He can no longer enable or disable menu items, but he
still has accessto previously enabled menu items. With the jumper
removed, the operator has access to menu headers Loc 1-3and
can enable or disable menu items.
SETTING HARDWARE LOCKOUT JUMPER
To access the lockout jumper, remove the rear panel per Section
9 and locate jumper “a” in the lower portion of the power supply
board next to the input connectors (see figure at right).
Check lockout status. Many Laurel meters are shipped with lockouts in place.
This causes menu items described later in this manual not to appear.
SETTING SOFTWARE LOCKOUTS
To set up a meter, it may be necessary to enable
menu items by setting lockout digits to “0”. Following
setup, reset the digits to "1" if you do not want the
menu item to be changed by an operator.
Loc 1 Loc 2 Loc 3
Press the MENU key until Loc 1, Loc 2 or Loc 3 is
displayed, as desired. Note: hardware lockout jumper
“a” must be removed (see above).
11111
Press to display the lockout status, consisting of 1’s
and 0’s. The left digit will flash. Press again to step
to the next digit, which will flash.
00000
12345
Press to set the flashing digit to "0" to enable the
menu item or to "1" to disable. Press MENU to enter.
See the table to the right for list of menu items that
can be enabled or disabled.
Enabled or Disabled
Menu Items
Loc 1
1- Input type selection.
2- Meter setup, configuration
& decimal point
3- Filter selection.
4- Scale or Lo, Hi input.
5- Offset or Lo, Hi reading
Loc 2
2- Alarm setup
3- Alarm setpoint value
programming.
4- Analog output scaling.
5- Serial interface setup.
Loc 3
2- View peak or tare value
3- View alarm setpoints
4- Reset (peak & latched alarms)
5- Reset (meter reset)
- 13 -
10. METER SCALING THEORY
User scalability is a standard feature of all of our analog input meters, with the exception of
thermocouple and RTD meters. It allows electrical signals to be converted to readings in
engineering units. These readings can have up to 5 digits, a user specified decimal point, and
a user specified polarity. For example, the same 4-20 mA signal from a pressure transducer
can be scaled to display 80.00 to 120.00 psi or 551.6 to 827.4 kPa.
Three scaling methods are user selectable under the meter SEtuP programming item:
1) Scale and Offset Method, which specifies a straight line of the type y = mx + b
2) Coordinates of 2 Points Method, which fits a straight line between two data points (low
in, low read, and high in, high read).
3) Reading Coordinates of 2 Points Method, which uses actual signal inputs instead of
manually entered low and high input signals.
Select the scaling method which is most convenient. If you know that the straight linepasses
through zero, you will typically use the Scale and Offset Method by entering the required scale
factor and an offset of zero and. If you are using a calibrated 4-20 mA transducer, you may
wish to use the Coordinates of 2 Points Method by entering the desired readings for 4 mA and
20 mA. If you have a load cell meter and a known 50.000 kg weight, you may wish to use the
Reading Coordinates of 2 Points Method by entering 0.0000 for no load and 50.000 for the
reference weight in place.
Input and display counts are properly rounded integers and are used for scaling regardless
of the selected scaling method. The decimal point is not used in calculations but is only a
decoration that appears in the displayed reading. For example, 1000 display counts can be
shown as 1.000 (kg) or 1000 (grams).
The number of inputs counts is the integer number generated by analog-to-digital con-
version. The maximum is 20,000 for full scale (FS) of all signal types and ranges, except for
the 50.000 mV load cell range, where the maximum is 50,000. This means that one count is
1 µA for the 20.000 mA range (which includes 4-20 mA), and 1 µV for the 50.000 mV load cell
range. With the DC signal conditioner, one count is 0.1V for the 300.0V and 600.0V ranges,
which are part of the 2000.0V range, and one count is 1 mA for the 5.000A range, which is
part of the 20.000A range. Our meter cannot be rated for the full 2000.0V and 20.000A ranges.
The number of display counts is the integer number that is displayed on the meter, is output
as serial data, is used to generate the meter’s analog output, and is used for relay setpoint
comparisons. This is the number generated by the meter’s scaling arithmetic.
To increase output resolution and add displayed digits after the decimal point, multiply the
input counts by a factor of 10 for each additional digit, then move the decimal point one
position to the left for each added digit. For example, if you want to display 517.13 kg instead
of 517 kg from a load cell input, increase the scale factor by a factor of 100 to increase the
counts to 51713, then move the decimal point to the left by two positions. This change in
scaling can also be achieved by entering larger readout numbers using the Coordinates of 2
Points Method or Reading Coordinates of 2 Points Method.
To decrease resolution, for example to display 15,547 mv as 15.5V, divide the scale factor
by 10 for each digit to be eliminated. For this example, apply a scale factor of 0.01 to change
the counts to 155, and move the decimal point one position to the left.
- 14 -
11. DC VOLTS, AMPS, PROCESS, DC RATIO
The DC Volts, Amps, Process and Strain meters utilize the DC signal conditioner board, which
needs to be configured via jumpers for the desired voltage or current range. All signal ranges
are factory calibrated with calibration factors stored in EEPROM on the signal conditioner board.
The meter software recognizes the board and will bring up the appropriate menu items for it;
however, it does not recognize the jumper settings.
Board Revisions Q and R
Notes: Position jumpers to cover the gaps marked by a letter. Store spare jumpers on unused
jumper posts. Please contact us for board revisions earlier than Q.
For DC voltmeters & ammeters, a scale factor of 1 and an offset of 0 are used for direct read-
ings in (milli)volts or (milli)amperes. This may be displayed as 20.000 mA or 20000 µA. Decimal
point selection does not affect the displayed digits. Full-scale ranges are ±20000 counts. For
resolution purposes, the 300V and 600V ranges are 2000V (100 mV/count), and the 5A range
is 20A (1 mA/count).
Use with a current shunt requires a scale factor to be set. For example, to display 500.0A
(5000 output counts) from a 100 mV shunt (10000 input counts in the 200 mV range), apply a
scale factor of 0.5 and an offset of 0. Three scaling methods are selectable: 1) Scale and offset,
2) Coordinates of 2 points, and 3) Reading coordinates of 2 points. Only menu items applicable
to the selected method are presented.
For use with load cells, select 5V or 10V excitation and from the meter, set _InPut to _rAtio,
and set the range to 0.2V. The meter will then use the excitation voltage as the reference for A-
to-D conversion, thereby correcting for any variations in excitation voltage. The meter can drive
four 350-ohm load cells in parallel.
For use with potentiometers where excitation and signal share the same ground, select 5V
(not 10V) excitation, set _InPut to _rAtio, and set the range to 20V. Again, the meter will use
the excitation voltage as the reference for A-to-D conversion, thereby correcting for any
variations in excitation voltage. Potentiometers are often used for length measurement.
Ranges Jumpers
FS Voltage
E1
E2
E3
±200.00 mV
±2.0000 V
±20.000 V
±200.00 V
±300.0V (ETL)
±600.0V (not ETL)
A
A
B
B
B
B
f
f
h
h
g
g
b
a
b
a
a
a
FS Current
E1
E2
E3
±2.0000 mA
±20.000 mA
±200.00 mA
±5.000 A
A
A
A
A
e, g
d, g
c, g
a, b, g
b
b
b
b
- 15 -
KEYSTROKES FOR SETUP
If the MENU key does not work, see Section 9 “Enabling & Locking Out Menu Items.”
Press Menu
Select Key
Press Digit
Select Key
Press Value Select
Key
_InPut
Selection of signal
input type & range.
Needs to reflect
jumper settings.
_dC U
DC Volts
__0.2U __2.0U _20.0U 200.0U 600.0U
0.2, 2, 20, 200, 600V FS
_dC A
DC Amps
__2.0a _20.0a _200.0a _5.0a
0.2, 20, 200 mA, 5A FS
_rAtio
Strain gauge & ratio
__0.2U __2.0U _20.0U
0.2, 2, 20V FS.
SEtuP
Meter Setup
00_00
Display selection with
scale factor of 1.
04-1/2 digits (±20,000)
15-digit remote display (±99,999)
24-1/2 digits, counts by 10 (±20,000)
3 3-1/2 digits (±2,000)
00 _00
Power line frequency
0 Noise minimized for 60 Hz
1Noise minimized for 50 Hz
00_ 00
Scaling method
0Scale and offset method
1Coordinates of 2 points method
2Reading coordinates of 2 points method
00_00
Rear panel control
inputs 1 & 2:
True = logic 1 (0V or
tied to digital ground)
False = logic 0 (5V or
open)
01 = Reset, 2 = Meter Hold
1 1 = Function Reset, 2 = Peak or Valley
21 = Hold, 2 = Peak or Valley Display
31 = Hold, 2 = Tare
41 = Peak or Valley Display, 2 = Tare
51 = Tare, 2 = Reset
61 = 1, 2 = 1, decimal point = XXXXX
1 = 0, 2 = 1, decimal point = XXXX.X
1 = 1, 2 = 0, decimal point = XXX.XX
1 = 0, 2 = 0, decimal point = XX.XXX
71 = 1, 2 = 1, decimal point = XXXX.X
1 = 0, 2 = 1, decimal point = XXX.XX
1 = 1, 2 = 0, decimal point = XX.XXX
1 = 0, 2 = 0, decimal point = X.XXXX
81 = Function Reset, 2 = Display Blank
91 = Hold, 2 = Display Blank
A1 = Peak or Valley, 2 = Display Blank
B1 = Tare, 2 = Display Blank
C1 = Valley Display, 2 = Peak Display
D1 = Tare, 2 = Tare Reset
Both inputs 1 and 2 set to 1 for selections
2, 4, A, C= Function Reset (fast, 20 msec).
Both inputs 1 and 2 set to 1 for selections
0, 1, 3, 5, 8, 9, B, D= Meter Reset (slow, 2
sec, same as removing & reapplying
power).
- 16 -
Press Menu
Select Key
Press Digit
Select Key
Press Value Select
Key
ConFG
Meter
Configuration
000_0
Operation as a rate of
change meter.
Extended meter only.
0Not rate of change
1Rate x 0.1 2 Rate x 1
3 Rate x 10 4Rate x 100
5 Rate x 1000 6 Rate x 10000
000_0
Operation of front
panel PEAK button
and rear connector for
Peak or Valley Display
0 Peak Display. Also selects “Peak” in
“Peak or Valley” at connector above.
1Valley Display. Also selects “Valley” in
“Peak or Valley” at connector above.
2 Peak (1st push), Valley (2nd push)
3Front panel Tare
000_0
Auto-tare
0Meter comes up in normal run mode.
1 Meter comes up in auto-tare mode.
000_ 0
Linear or nonlinear
input scaling
0Linear input
1 Custom curve linearization
Extended meter only.
FiLtr
Filtering
00000
Alarm filtering
0Unfiltered output
1Filtered output
00000
Peak & Valley filtering
0Unfiltered Peak & Valley
1Filtered Peak & Valley
00000
Display filtering
0Display 16-reading batch average every
17 readings. Updates display 3.5 times/
sec at 60 Hz, 3.0 times/sec at 50 Hz.
1Display per signal filter setting below.
00000Adaptive filter
threshold for all filters
0Low adaptive filter threshold level
1High adaptive filter threshold level
00000
Input signal filter
setting.
Can be applied to dis-
play, setpoint, analog
output, data output.
0Autofilter. Time constant set by meter.
1Batch average of 16 readings
2Moving average, 0.08 sec time constant.
3Moving average, 0.15 sec time constant
4Moving average, 0.3 sec time constant.
5Moving average, 0.6 sec time constant.
6Moving average, 1.2 sec time constant.
7Moving average, 2.4 sec time constant.
8Moving average, 4.8 sec time constant.
9Moving average, 9.6 sec time constant.
A Unfiltered. Readings updated at 60/sec
at 60 Hz, 50/sec at 50 Hz.
dEc.Pt
Decimal point
selection
d.dddd
Decimal point flashes.
d.dddd dd.ddd ddd.dd dddd.dddddd.
.ddddd Press to shift the decimal point.
- 17 -
Press Menu
Select Key
Press Digit
Select Key
Press Value Select
Key
Scaling method “Scale and Offset” as selected under SEtuP
SCALE
Scale factor with
decimal point
0.0000 0.0000 0.0000
0.0000 0.00000.0000
Select digit then dec pt
Select -9 thru 9for first flashing digit, 0thru
9for flashing other digits. Then press key
to move flashing decimal point.
OFFst
Offset value
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits. Decimal point
location is selected by dEC.Pt.
Scaling method “Coordinates of 2 points” if selected under SEtuP
Lo In.
Low signal input.
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits. Decimal point is
set by input range chosen.
Lo rd
Desired reading at
Lo In.
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits. Decimal point is
set by dEC.Pt.
Hi In.
High signal input.
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits. Decimal point is
set by input range chosen.
Hi rd.
Desired reading at
Hi In.
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits. Decimal point is
set by dEC.Pt.
Scaling method “Reading coordinates of 2 points” if selected under SEtuP.
When this method is selected, the four menu items below will appear ahead of all other
menu items when the MENU or key is first pressed from the run mode. See next page.
Lo In.
Low signal input.
Press key.
_0.021
Apply low reference
signal to meter.
_0.021
Press key to store low signal input in
meter, then press Menu key.
Hi In.
High signal input.
Press key.
_20.094
Apply high reference
signal to meter.
_0.021
Press to store high signal input meter,
then press Menu key.
Lo rd
Desired reading at
Lo In. Press key.
0.0000 0.0000 0.0000
0.0000 0.0000
Modify flashing digit.
0.0000
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits (decimal point is
set by dEC.Pt), then press Menu key.
Hi rd.
Desired reading at
Hi In. Press key.
0.0000 0.0000 0.0000
0.0000 0.0000
Select digit to flash.
6.7500
Select -9 thru 9for flashing first digit, 0thru
9for other flashing digits (decimal point is
set by dEC.Pt), then press Menu key.
Reading Coordinates of 2 Points Scaling Method
- 18 -
This scaling method applies a straight line fit between two points, which are based on actual
transducer signals. A low input signal, such as the signal with zero weight, and a high input
signal, such as the signal with a known weight, are applied to the meter. The corresponding
desired low and high readings are then entered from the front panel. The meter applies straight
line fit between these low and high calibration points. This scaling method has the advantage of
calibrating the transducer and meter as a system. The actual voltages or currents at the two
endpoints do not need to be known. This method can be used with DC, process and load cell
meters when known inputs are available. It is also available for ACmeters, but not thermocouple
or RTD meters.
Option board dependent menu items
ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b
Menu items related to alarm setup These will only appear if a relay board is detected. If so,
see Section 16.
AnSEt. An Lo. An Hi..
Menu items related to analog output setup. These will only appear if an analog output
board is detected. If so, see Section 17.
SEr 1.SEr 2. SEr 3. SEr 4. _Addr
Menu items related to communications. These will only appear if an RS232, RS485, USB
or Ethernet board is detected. If so, see Section 18.
Menu lockout items
Loc 1.Loc 2.Loc 3.
Menu items used to enable or lock out (hide) other menu items. Loc menu items may in
turn be locked out by a hardware jumper on the power supply board. See Section 9.
- 19 -
12. LOAD CELL & MICROVOLT INPUT
Notes 1. See Section 19 to select 10V excitation.
2. Jumpers are 2.5 mm (0.1 in).
SCALE & OFFSET SETUP
For absolute readings in millivolts or microvolts, select _dC u under _InPut. Also select a
scale factor of 1 and an offset of 0. A full scale reading is 20,000 counts. Decimal point selection
does not affect the displayed digits. For example, 20 mV can be displayed as 20.000 mV or
20000 µV.
For ratiometric readings with bridges, such as load cells, select _Strn under _InPut. Scaling
is normally set up from the front panel using the and keys, but can also be set up via
RS232/485 using our PC compatible setup software (available at no charge). A full scale reading
is 20,000 counts. Three scaling methods are selectable: 1) Manual scale and offset, 2)
Coordinates of 2 points, and 3) Reading coordinates of 2 points. Please see the Glossary for an
explanation of each method.
The reading coordinates of 2 points scaling method applies a straight line fit between two
points, which are based on actual transducer signals. A low input signal, such as the signal with
zero weight, and a high input signal, such as the signal with a known weight, are applied to the
meter. The corresponding desired low and high readings are then entered from the front panel.
The meter applies straight line fit between these low and high calibration points. This scaling
method has the advantage of calibrating the transducer and meter as a system. The actual
voltages or currents at the two endpoints do not need to be known. This method can be used
with DC, process and load cell meters when known inputs are available. It is also available for
AC meters, but not thermocouple or RTD meters.
Load Cell, Strain Gauge and Microvoltmeters utilize the load cell signal conditionerboard, which
offers sensitivity to ±20 mV full scale and 4 or 6-wire load cell connection. This board needs to
be configured via jumpers for the desired voltage range. All signal ranges are factory calibrated
with calibration factors stored in EEPROM. The meter software recognizes the board and will
bring up the appropriate menu items for it; however, it does not recognize the jumper settings.
Please see further manual sections for setup of the following features: relay output, analog
output, communications, and transducer excitation output.
RANGE SELECTION VIA JUMPERS
Ranges & Display with
Scale Factor = 1
Input
Jumpers
Counts
±20.000 mV
±50.000 mV
±100.00 mV
±250.00 mV
±500.00 mV
e
a
b
c
d
±20000
±50000
±10000
±25000
±50000
- 20 -
KEYSTROKES FOR SETUP
If the MENU key does not work, see Section 9 “Enabling & Locking Out Menu Items.”
Press Menu
Select Key
Press Digit
Select Key
Press Value Select
Key
_InPut
Selection of signal
input type & range.
Needs to reflect
jumper settings.
_Strn
Strain or ratiometric
_20.0____50.0__100.0 _250.0 _500.0
20, 50, 100, 250, 500 mV FS voltage
_dC u U
DC millivolts
_20.0____50.0__100.0 _250.0 _500.0
20, 50, 100, 250, 500 mV FS voltage
SEtuP
Meter Setup
00_00
Display type
04-1/2 digit meter, counts by 1
15-digit remote display (±99,999)
24-1/2 digit meter, counts by 10
3 3-1/2 digit meter
00_00
Power line frequency
0 Noise minimized for 60 Hz
1Noise minimized for 50 Hz
00_ 00
Scaling method
0Scale and offset method
1Coordinates of 2 points method
2Reading coordinates of 2 points method
00_00
Rear panel control
inputs 1 & 2.
True = logic 1 (0V or
tied to digital ground)
False = logic 0 (5V or
open)
01 = Reset, 2 = Meter Hold
1 1 = Function Reset 2 = Pk or Valley Disp.
21 = Meter Hold 2 = Pk or Valley Disp.
31 = Meter Hold 2 = Tare
41 = Peak or Valley 2 = Tare
51 = Tare 2 = Reset
61 = 0, 2 = 0, decimal point 1= XXXXX
1 = 1, 2 = 0, decimal point 1 = XXXX.X
1 = 0, 2 = 1, decimal point 1 = XXX.XX
1 = 1, 2 = 1, decimal point 1 = XX.XXX
71 = 0, 2 = 0, decimal point 2 = XXXX.X
1 = 1, 2 = 0, decimal point 2 = XXX.XX
1 = 0, 2 = 1, decimal point 2 = XX.XXX
1 = 1, 2 = 1, decimal point 2 = X.XXXX
81 = Function Reset 2 = Display Blank
91 = Hold 2 = Display Blank
A1 = Peak or Valley 2 = Display Blank
B1 = Tare 2 = Display Blank
C1 = Valley Display 2 = Peak Display
D1 = Tare 2 = Tare Reset
Both inputs 1 and 2 set to 1 for selections
2, 4, A, C= Function Reset (fast, 20 msec).
Both inputs 1 and 2 set to 1 for selections
0, 1, 3, 5, 8, 9, B, D= Meter Reset (slow,
2 sec, same as removing & reapplying
power).
Other manuals for LAUREATE 2 Series
1
Table of contents
Other LAUREL Measuring Instrument manuals
