red lion LDA Series User manual

trust+innovation®
LDA Series
Large Analog Input Displays
Go to Market Kit
April 2007

To Our Distributors and Sales Team:
M
ARKET I NTRODUCTION – LDA S ERIES
Red Lion is pleased to introduce a new large digital display series for analog inputs. The LDA displays are 5
digit large displays capable of accepting DC current, process or voltage input signals and scaling them to the
desired readout. Two models are available in either 2.25" or 4" high red LED digits, with user adjustable
display intensities. The 2.25" high models are readable up to 130 feet. The 4" high models are readable up to
180 feet. Both versions offer setpoint control with dual Form C relay outputs and RS232/RS485 serial
communications. All versions are constructed in a NEMA 4X enclosure made of light weight aluminum.
T
ARGET APPLICATIONS INCLUDE :
• Tank Monitoring (Ultrasonic Sensors)
• Flow Rates (Flow Meters)
• Pressure (Pressure Sensors)
• Temperature (Temperature Transducers)
H
OW TO USE THE LDA GO TO MARKET KIT :
All files are available for download from the Distributor Section of our website. To get there, go to
www.redlion.net and click on the Distributor Login link in the upper left corner of the page.
• For direct mail campaigns
o Download and customize the news release with your header and contact info where indicated.
o Red Lion has free direct mail postcards that are blank on the back for your company's custom
message. Request part number ADLD0083 from your customer service representative, or
download the artwork for the card.
• For quick email campaigns
o Copy and paste the email introduction template into your email system. Add your company
name or graphics header and links to your website and email contact.
• To update your company website
o Add the press release, product photo and description, and link to the product bulletin.
• For seminars, lunch and learns, and sales calls
o Download the available PowerPoint
®
presentation.
Tel [phone]
Fax [phone]
www.redlion.net
[email protected]
Red Lion Controls
20 Willow Springs Circle
York PA 17406
United States of America

[company logo]
Contact: [company contact info]
[company address]
[company email]
FOR IMMEDIATE RELEASE:
New Programmable Large Digital Display for Analog Inputs Offers
High Visibility for Challenging Industrial Applications
[Location]—[Date]—Presenting important process data to the plant production floor is now easily
accomplished with the introduction of a new line of large digital displays. [Company] announces
the new programmable LDA, Large Digital Display for Analog Inputs from Red Lion. The LDA is
a versatile 5 digit display available in 2.25 inch and 4 inch high red LED digits, with readability
up to 130 feet and 180 feet, respectively. The LDA is available as a volt, current, or process
meter with scaling, RS232/RS485 serial communications, and dual Form C relay outputs. The
LDA also offers lightweight aluminum NEMA 4X case construction and adjustable display
intensities.
“The LDA offers a reliable, highly visible 5 digit display, making it an ideal solution for reading
flow rates, pressure or temperature measurements, or other challenging production floor
applications,” said Jeff Thornton, product manager, Red Lion panel meters and displays.
“Programming the LDA is made simple with our easy-to-follow push-button menu or by using
Red Lion’s robust Crimson Programming Software. Also, the LDA is capable of accepting
current, process, or voltage signal, scaling them to the desired readout and transmitting the
results on the large, easy-to-read display.”
The LDA offers dual 5 Amp relays for control capability and two serial communication methods
to relay the displayed information to a management system. RS232 communication allows the
LDA to communicate with a control console up to 50 feet away, while RS485 communication
allows the connection of up to 32 devices on a single pair of wires over distances of up to 4,000
feet. Once connected, the LDA adjusts to a wide variety of industrial applications by allowing
users to set numerous scaling parameters through various programming options. The LDA
Programming Menu is organized into six separate modules, grouped together by parameters
related in function. Also, the LDA’s nonvolatile E
2
PROM memory retains all programming
parameters and count values once power is removed, securing information in case of an
electrical outage.
For additional information on the LDA or other digital display solutions, please contact [contact
name] at [phone] or by e-mail at [email].
[company description]
News Release News Release News Release News Release News Release

LDA Series E-mail Template

LDA Large Display
for Analog Inputs
Agenda
What is the LDA?
Easy programming
About the input
Setpoint control
Communication
Other features
Packaging
Applications

LDA Large Display
The new LDA, Large Digital Display for Analog Inputs,
is capable of accepting DC current, process or voltage
signals, scaling them to the desired readout.
Two models are available with display heights of 2.25"
readable to 130' or the 4" readable to 180'. Both
versions offer setpoint control and communications.
Easy Programming
Five simple programming menus
CUB5 style programming
Easy-to-follow push button entry
Crimson Software

About the Input
Current, process and
voltage, same display
Inputs jumper
programmable
Not zero based
4 current ranges, 200
mA DC max
5 voltage ranges, 200
VDC max
Setpoint Control
Setpoints standard
Dual setpoints
Dual 5 Amp form
“C” relays
120/240 VAC or 28
VDC capability
Full control of delay
time, hysteresis, and
setpoint reset.

Communication
Communications
standard
RS232 or RS485
Programmable address
Baud rate up to 38.4K
Active parameters;
input, min/max display
and setpoints
Other Features
Programmable scaling
Selectable decimal points
Programmable user input
Adjustable display intensity
Programming lock-out
New 24 VDC power input
New universal power input (accepts both AC and DC
power)

Packaging
2.25" high, red LED
4 “ high, red LED
Aluminum case
NEMA 4X rated
enclosure
Air pressure stabilizer
Applications
Tank Monitoring (Ultrasonic Sensors)
Flow Rates (Flow Meters)
Pressure (Pressure Sensors)
Temperature (Temperature Transducers)

1
GENERAL DESCRIPTION
The Large Display is a versatile display available as a DC volt, current, or
process meter with scaling, serial communications and dual relay outputs. The 5
digit displays are available in either 2.25" or 4" high red LED digits with
adjustable display intensities. The 2.25" high models are readable up to 130 feet.
The 4" high models are readable up to 180 feet. Both versions are constructed
of a NEMA 4X enclosure in light weight aluminum.
All models also come with dual Form C relay outputs and RS232 / RS485
serial communications.
SAFETY SUMMARY
All safety regulations, local codes and instructions that appear in this and
corresponding literature, or on equipment, must be observed to ensure personal
safety and to prevent damage to either the instrument or equipment connected to
it. If equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
The protective conductor terminal is bonded to conductive
parts of the equipment for safety purposes and must be
connected to an external protective earthing system.
SPECIFICATIONS
1. DISPLAY: 2.25" (57 mm) or 4" (101 mm) intensity adjustable Red LED
2. POWER REQUIREMENTS:
AC POWER:
AC Input: 50 to 250 VAC 50/60 Hz, 18 VA
DC Out: 24 VDC @ 100 mA
DC POWER:
21.6 to 250 VDC, 11 W
3. INPUT RANGES: Jumper Selectable
D.C. Voltages: 200 mV, 2 V, 20 V, 200 V, 10 V
D.C. Currents: 200 µA, 2 mA, 20 mA, 200 mA
D.C. Process: 4 to 20 mA, 1 to 5 VDC, 0/1 to 10 VDC
z2.25" & 4" HIGH RED LED DIGITS
zPROGRAMMABLE SCALING AND DECIMAL POINTS
zPROGRAMMABLE USER INPUT
zDUAL 5 AMP FORM C RELAY
zALUMINUM NEMA 4X CASE CONSTRUCTION
zRS232/RS485 SERIAL COMMUNICATIONS
zAC or DC POWERED
MODEL LD - LARGE DC VOLT/CURRENT/PROCESS DISPLAY
DIMENSIONS In inches (mm)
Bulletin No. LDVI-X
Drawing No. LP0673
Effective XX/07
Tel [phone]
Fax [phone]
www.redlion.net
PART
NUMBER X (Length) Z (Center)
LD2A05P0 16 (406.4) 12 (304.3)4 (101.6)
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
Y (Height)
INPUT
RANGE
INPUT
IMPEDANCE
MAX
INPUT
SIGNAL
RESOLUTION TEMP.
COEFFICIENT
200 mV 0.1% of span 1.027 MΩ75 VDC 10 µV70 ppm /°C
2 V 0.1% of span 1.027 MΩ75 VDC 0.1 mV 70 ppm /°C
20 V 0.1% of span 1.027 MΩ250 VDC 1 mV 70 ppm /°C
10 V
200 V
0.1% of span
0.1% of span
538 KΩ
1.027 MΩ
30 V
250 VDC
1 mV
10 mV
70 ppm /°C
70 ppm /°C
ACCURACY @
23 °°C LESS
THAN 85% RH
INPUT
RANGE
INPUT
IMPEDANCE
MAX
INPUT
SIGNAL
RESOLUTION TEMP.
COEFFICIENT
200 µΑ 0.1% of span 1.111 KΩ15 mA 10 nA 70 ppm /°C
2 mA 0.1% of span 111 Ω50 mA 0.1 µA70 ppm /°C
20 mA 0.1% of span 11 Ω150 mA 1 µA70 ppm /°C
200 mA 0.1% of span 1 Ω500 mA 10 µA70 ppm /°C
ACCURACY @
23 °°C LESS
THAN 85% RH

2
ORDERING INFORMATION
MODEL NO. DESCRIPTION PART NUMBER
LD2A LD2A05P0
4. RESET/USER INPUT:
User Input: Software selectable pull-up (8.6KΩ) or pull-down resistor
(3.9 KΩ) that determines active high or active low input logic.
Trigger levels: VIL = 1.0 V max; VIH = 2.4 V min; VMAX = 28 VDC
Response Time: 5 msec typ.; 100 msec debounce (activation and release)
5. COMMUNICATIONS:
RS485 SERIAL COMMUNICATIONS
Type: RS485 multi-point balanced interface (isolated)
Baud Rate: 300 to 38.4 k
Data Format: 7/8 bits; odd, even, or no parity
Bus Address: 0 to 99; max 32 meters per line
RS232 SERIAL COMMUNICATIONS
Type: RS232 half duplex (non-isolated)
Baud Rate: 300 to 38.4 k
Data Format: 7/8 bits; odd, even, or no parity
6. MEMORY: Nonvolatile E2PROM retains all programming parameters and
count values when power is removed.
7. OUTPUT:
Relay: Form C contacts rated at 5 amps @ 120/240 VAC or 28 VDC (resistive
load), 1/8 H.P. @ 120 VAC (inductive load)
8. ENVIRONMENTAL CONDITIONS:
Operating temperature: 0 to 50 °C
Storage temperature: -40 to 70 °C
Operating and storage humidity: 0 to 85% max. RH (non-condensing)
Altitude: Up to 2,000 meters
9. CONNECTIONS:
Internal removable terminal blocks
Wire Strip Length: 0.4" (10 mm)
Wire Gage: 24-12 AWG copper wire
Torque: 5.3 inch-lbs (0.6 N-m) max.
10. CERTIFICATIONS AND COMPLIANCES:
SAFETY
IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment for
measurement, control, and laboratory use, Part 1.
IP65 Enclosure rating (Face only), IEC 529
Type 4X Enclosure rating (Face only), UL50
ELECTROMAGNETIC COMPATIBILITY
CE Specifications pending.
11. CONSTRUCTION: Aluminum enclosure, and steel side panels with textured
black polyurethane paint for scratch and corrosion resistance protection. Sealed
front panel meets NEMA 4X/IP65 specifications. Installation Category II,
Pollution Degree 2.
12. WEIGHT:
LD2A05XX - 4.5 lbs (2.04 kg)
1.0 INSTALLING THE METER
INSTALLATION
The meter meets NEMA 4X/IP65 requirements when properly installed.
INSTALLATION ENVIRONMENT
The unit should be installed in a location that does not exceed the operating
temperature. Placing the unit near devices that generate excessive heat
should be avoided.
The unit should only be cleaned with a soft cloth and neutral soap product.
Do NOT use solvents.
Continuous exposure to direct sunlight may accelerate the aging process of
the front overlay. Do not use tools of any kind (screwdrivers, pens, pencils, etc.)
to operate the keypad of the unit.
2.25" High 5 Digit Red LED Volt/Current Meter with
Relay Output and RS232/RS485 Serial Communications

3
3.0 WIRING THE METER
EMC INSTALLATION GUIDELINES
Although this meter is designed with a high degree of immunity to Electro-
Magnetic Interference (EMI), proper installation and wiring methods must be
followed to ensure compatibility in each application. The type of the electrical
noise, source or coupling method into the meter may be different for various
installations. The meter becomes more immune to EMI with fewer I/O
connections. Cable length, routing, and shield termination are very important
and can mean the difference between a successful or troublesome installation.
Listed below are some EMC guidelines for successful installation in an
industrial environment.
1. The meter should be properly connected to protective earth.
2. Use shielded (screened) cables for all Signal and Control inputs. The shield
(screen) pigtail connection should be made as short as possible. The
connection point for the shield depends somewhat upon the application.
Listed below are the recommended methods of connecting the shield, in order
of their effectiveness.
a. Connect the shield only at the panel where the unit is mounted to earth
ground (protective earth).
b. Connect the shield to earth ground at both ends of the cable, usually when
the noise source frequency is above 1 MHz.
c. Connect the shield to common of the meter and leave the other end of the
shield unconnected and insulated from earth ground.
3. Never run Signal or Control cables in the same conduit or raceway with AC
power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc. The cables should be ran in metal conduit that is properly
grounded. This is especially useful in applications where cable runs are long
and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter.
4. Signal or Control cables within an enclosure should be routed as far as possible
from contactors, control relays, transformers, and other noisy components.
5. In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective. Install them on Signal
and Control cables as close to the unit as possible. Loop the cable through the
core several times or use multiple cores on each cable for additional protection.
Install line filters on the power input cable to the unit to suppress power line
interference. Install them near the power entry point of the enclosure. The
following EMI suppression devices (or equivalent) are recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251 (RLC# FCOR0000)
TDK # ZCAT3035-1330A
Steward # 28B2029-0A0
Line Filters for input power cables:
Schaffner # FN610-1/07 (RLC# LFIL0000)
Schaffner # FN670-1.8/07
Corcom # 1 VR3
Note: Reference manufacturer's instructions when installing a line filter.
6. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.
7. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
Snubber: RLC# SNUB0000.
WIRING OVERVIEW
Electrical connections are made via pluggable terminal blocks located inside
the meter. All conductors should conform to the meter's voltage and current
ratings. All cabling should conform to appropriate standards of good
installation, local codes and regulations. It is recommended that the power
supplied to the meter (DC or AC) be protected by a fuse or circuit breaker. When
wiring the meter, compare the numbers on the label on the back of the meter case
against those shown in wiring drawings for proper wire position. Strip the wire,
leaving approximately 0.4" (10 mm) bare lead exposed (stranded wires should
be tinned with solder.) Insert the lead under the correct screw clamp terminal and
tighten until the wire is secure. (Pull wire to verify tightness.) Each terminal can
accept up to one #14 AWG (2.55 mm) wire, two #18 AWG (1.02 mm), or four
#20 AWG (0.61 mm).
WIRING CONNECTIONS
Internal removable
terminal blocks are used for
power and signal wiring.
Remove end plates with ¼"
nut driver. For LD4
versions, all wiring is on
right side of unit. For LD2
versions, power and relay
wiring is on the right side
and the input, serial, DC out
and user input is on the left
side.
LD2
INPUT RANGE JUMPER
This jumper is used to select the proper input range. The input range selected
in programming must match the jumper setting. Select a range that is high
enough to accommodate the maximum signal input to avoid overloads. To
access the jumper, remove the side cover of the meter.
Warning: Exposed line voltage exists on the circuit boards.
Remove all power to the meter and load circuits before accessing
inside of the meter.
2.0 SETTING THE JUMPERS
RIGHT SIDE VIEW LEFT SIDE VIEW
LD4

4
3.4 INPUT WIRING
3.2 USER INPUT WIRING
The Large Display has two signal inputs, Volt and Current. These inputs are
wired to terminal block TBC located inside the unit on the left side (LD2) and
on the right side (LD4).
Before connecting signal wires, the Input Range Jumper should be verified
for proper position.
CAUTION: Analog common is NOT isolated from user input
common. In order to preserve the safety of the meter
application, the DC common must be suitably isolated from
hazardous live earth referenced voltage; or input common must
be at protective earth ground potential. If not, hazardous
voltage may be present at the User Input and Input Common
terminals. Appropriate considerations must then be given to the
potential of the input common with respect to earth ground.
Always connect the analog signal common to terminal 2.
The User Input is located: LD2 - left side, LD4 - right side
Terminal 5: User Input
Terminal 6: User Comm
3.3 SETPOINT (OUTPUT) WIRING
The setpoint relays use a six position terminal block (TBB) located inside the
(right side).
Terminal 1: NC 1
Terminal 2: NO 2
Terminal 3: Relay 1 Common
Terminal 4: NC 1
Terminal 5: NO 2
Terminal 6: Relay 2 Common
Sinking Logic Sourcing Logic
The power wiring is made via the 3 position terminal block (TBA) located
inside the unit (right side). The DC out power is located: LD2 - left side, LD4
- right side
3.1 POWER WIRING
DC Out Power
Terminal 4: + 24 VDC OUT
Terminal 6: User Common
Power
Terminal 1: VAC/DC +
Terminal 2: VAC/DC -
Terminal 3: Earth Ground

communications to take place. This is known as a null modem connection. Most
printers emulate a DCE device while most computers emulate a DTE device.
Some devices cannot accept more than two or three characters in succession
without a pause in between. In these cases, the meter employs a busy function.
As the meter begins to transmit data, the RXD line (RS232) is monitored to
determine if the receiving device is “busy”. The receiving device asserts that it
is busy by setting the RXD line to a space condition (logic 0). The meter then
suspends transmission until the RXD line is released by the receiving device.
RS485 Communications
The RS485 communication standard allows the connection of up to 32
devices on a single pair of wires, distances up to 4,000 ft. and data rates as high
as 10M baud (the LD is limited to 19.2k baud). The same pair of wires is used
to both transmit and receive data. RS485 is therefore always half-duplex, that is,
data cannot be received and transmitted simultaneously.
RS232 Communications
RS232 is intended to allow two devices to communicate over distances up to
50 feet. Data Terminal Equipment (DTE) transmits data on the Transmitted Data
(TXD) line and receives data on the Received Data (RXD) line. Data Computer
Equipment (DCE) receives data on the TXD line and transmits data on the RXD
line. The LD emulates a DTE. If the other device connected to the meter also
emulates a DTE, the TXD and RXD lines must be interchanged for
3.5 SERIAL WIRING
Terminal Block Connection Figure
Terminal Block Connection Figure
4.0 REVIEWING THE FRONT BUTTONS AND DISPLAY
BUTTON DISPLAY MODE OPERATION PROGRAMMING MODE OPERATION
PAR Access Programming Mode Store selected parameter and index to next parameter
RSTTT
SELSS
Resets count display
Index display through selected displays
OPERATING MODE DISPLAY DESIGNATORS
MAX - Maximum display capture value
MIN - Minimum display capture value
“1” - To the left of the display indicates setpoint 1 output activated.
“2” - To the left of the display indicates setpoint 2 output activated.
Pressing the SELSSbutton toggles the meter through the selected displays. If display scroll is enabled, the display will toggle automatically every four seconds
between the enabled display values.
Advance through selection list/increment selected digit
of parameter value
Select digit position in parameter value
5
The serial connections are made via terminal block TBD located inside the
unit on the left side for the LD2 and on the right side for the LD4.

6
PROGRAMMING MODE ENTRY (SEL BUTTON)
It is recommended all programming changes be made off line, or before
installation. The meter normally operates in the Display Mode. No parameters
can be programmed in this mode. The Programming Mode is entered by
pressing and holding the SEL button. If it is not accessible then it is locked by
either a security code, or a hardware lock.
MODULE ENTRY (SEL & RST BUTTONS)
The Programming Menu is organized into separate modules. These modules
group together parameters that are related in function. The display will alternate
between Pro and the present module. The RST button is used to select the desired
module. The displayed module is entered by pressing the SEL button.
MODULE MENU (SEL BUTTON)
Each module has a separate module menu (which is shown at the start of each
module discussion). The SEL button is pressed to advance to a particular
parameter to be changed, without changing the programming of preceding
parameters. After completing a module, the display will return to Pro NO.
Programming may continue by accessing additional modules.
SELECTION / VALUE ENTRY
For each parameter, the display alternates between the present parameter and
the selections/value for that parameter. The RST button is used to move through
the selections/values for that parameter. Pressing the SEL button stores and
activates the displayed selection/value. This also advances the meter to the next
parameter.
For numeric values, press the RST button to access the value. The right hand
most digit will begin to flash. Pressing the RST button again increments the
digit by one or the user can hold the RST button and the digit will automatically
scroll. The SEL button will advance to the next digit. Pressing and holding the
SEL button will enter the value and move to the next parameter.
PROGRAMMING MODE EXIT (SEL BUTTON)
The Programming Mode is exited by pressing the SEL button with Pro NO
displayed. This will commit any stored parameter changes to memory and
return the meter to the Display Mode. (If power loss occurs before returning to
the Display Mode, verify recent parameter changes.)
PROGRAMMING TIPS
It is recommended to start with Module 1 and proceed through each module in
sequence. When programming is complete, it is recommended to record the
parameter programming and lock out parameter programming with the user input
or programming security code.
FACTORY SETTINGS
Factory Settings may be completely restored in Module 2. This is useful
when encountering programming problems.
Pressing both the SEL and the RST button on power-up will also load the
factory settings and display rESEt. This allows operation in the event of a
memory failure or corrupted data.
ALTERNATING SELECTION DISPLAY
In the explanation of the modules, the following dual display with arrows will
appear. This is used to illustrate the display alternating between the parameter
on top and the parameter’s Factory Setting on the bottom. In most cases,
selections and values for the parameter will be listed on the right.
Indicates Program Mode Alternating Display
Factory Settings are shown.
Parameter
Selection/Value
ª
«
N0
USrIN
5.0 PROGRAMMING THE METER
OVERVIEW
PROGRAMMING MENU
5.1 MODULE 1 - SIGNAL INPUT PARAMETERS (1-INP)
PARAMETER MENU
ª
«
0.02A
rAN6E
INPUT RANGE
Select the input range that corresponds to the external signal. This selection
should be high enough to avoid input signal overload but low enough for the
desired input resolution. This selection and the position of the Input Range
Jumper must match.
200uA 200.00 µA
10u
2u
0.2u
0.002A
10.000 V
2.0000 V
200.00 mV
2.0000 mA
20.000 mA
200.00 V
20.000 V
200.00 mA
0.02A
200u
20u
0.2A
SELECTION RANGE
RESOLUTION
RANGE
RESOLUTION
SELECTION
ª
«
0.000
dECPt 0.000 0.00000.000.00
DISPLAY DECIMAL POINT
Select the decimal point location for the Input, MIN and MAX displays. This
selection also affects the dSP1 and dSP2 parameters and setpoint values.

7
ª
«
10.000
dSP 2
DISPLAY VALUE FOR SCALING POINT 2
0to 59999
Enter the second Display Value by using the front panel buttons. This is the
same for KEY and APLY scaling styles.
General Notes on Scaling
1. When using the Apply (APLY) scaling style, input values for scaling points
must be confined to the range limits shown.
2. The same Input Value should not correspond to more than one Display Value.
(Example: 20 mA can not equal 0 and 20.)
3. For input levels beyond the programmed Input Values, the meter extends the
Display Value by calculating the slope from the two coordinate pairs (INP1 /
dSP1 & INP2 / dSP2).
USER INPUT ASSIGNMENT
Select the value(s) to which the User Input Function is assigned. The User
Input Assignment only applies if a selection of reset, display hold, or print and
reset is selected in the User Input Function menu.
MODEDISPLAY
No Function
NO
DESCRIPTION
User Input disabled.
Program Mode Lock-out
P-Loc
Zero Input
(Edge triggered)
ZErO Zero the Input Display value causing
Display Reading to be Offset.
d-SEL
d-LEV
d-HLd
rESEt Resets the assigned value(s) to the current
input value.
HI-LOHI
dSPLO
See Programming Mode Access chart
(Module 3).
Setpoint 1 and 2 Reset
Setpoint 1 Reset
Setpoint 2 Reset
Print and Reset
Reset both setpoint 1 and 2 outputs.
Resets setpoint 1 output.
Resets setpoint 2 output.
Same as Print Request followed by a
momentary reset of the assigned value(s).
rSt12
rSt-1
rSt-2
P-r5t
Print Request
Serial transmit of the active parameters
selected in the Print Options menu
(Module 5).
Print
USER INPUT FUNCTION
ª
«
NO
USrIN
ª
«
dSP
U-ASN
Display Select
(Edge Triggered)
Display Intensity Level
(Edge Triggered)
Display Hold
Reset (Edge triggered)
Advance once for each activation.
Increase intensity one level for each
activation (backlight version only).
Holds the assigned display, but all other
meter functions continue as long as
activated (maintained action).
ª
«
KEy
StYLE
SCALING STYLE
If Input Values and corresponding Display Values are known, the Key-in
(KEY) scaling style can be used. This allows scaling without the presence or
changing of the input signal. If Input Values have to be derived from the actual
input signal source or simulator, the Apply (APLY) scaling style must be used.
KEy APLY
ª
«
0.000
INP 1
INPUT VALUE FOR SCALING POINT 1
For Key-in (KEY) style, enter the first Input Value using the front panel buttons.
(The Input Range selection sets the decimal location for the Input Value).
For Apply (APLY) style, the meter shows the previously stored Input Value. To
retain this value, press the SEL button to advance to the next parameter. To
change the Input Value, press the RST button and apply the input signal to the
meter. Adjust the signal source externally until the desired Input Value appears.
Press the SEL button to enter the value being displayed.
0to 29999
ª
«
0.000
dSP 1
DISPLAY VALUE FOR SCALING POINT 1
0to 59999
Enter the first Display Value by using the front panel buttons. This is the same
for KEY and APLY scaling styles. The decimal point follows the dECPt selection.
ª
«
10.000
INP 2
INPUT VALUE FOR SCALING POINT 2
0to 29999
For Key-in (KEY) style, enter the known second Input Value using the front
panel buttons.
For Apply (APLY) style, the meter shows the previously stored Input Value for
Scaling Point 2. To retain this value, press the SEL button to advance to the next
parameter. To change the Input Value, press the RST button and apply the input
signal to the meter. Adjust the signal source externally until the desired Input
Value appears. Press the SEL button to enter the value being displayed.
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0.000
OFSEt
DISPLAY OFFSET VALUE
The display can be corrected with an offset value. This can be used to
compensate for signal variations or sensor errors. This value is automatically
updated after a Zero Display to show how far the display is offset. A value of
zero will remove the effects of offset.
-19999 to 19999
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1
FILtr
FILTER SETTING
If the displayed value is difficult to read due to small process variations or
noise, increased levels of filtering will help to stabilize the display. Software
filtering effectively combines a fraction of the current input reading with a
fraction of the previous displayed reading to generate the new display.
Filter values represent no filtering (0), up to heavy filtering (3). A value of 1
for the filter uses 1/4 of the new input and 3/4 of the previous display to generate
the new display. A filter value of 2 uses 1/8 new and 7/8 previous. A filter value
of 3 uses 1/16 new and 15/16 previous.
0,1 2 3
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10
bANd
FILTER BAND
The filter will adapt to variations in the input signal. When the variation
exceeds the input filter band value, the filter disengages. When the variation
becomes less than the band value, the filter engages again. This allows for a
stable readout, but permits the display to settle rapidly after a large process
change. The value of the band is in display units, independent of the Display
Decimal Point position. A band setting of ‘0’ keeps the filter permanently
engaged at the filter level selected above.
0to 199 display units

8
Entering Code 66 will overwrite all user settings with
the factory settings. The meter will display rESEt and then
return to CodE 00. Press the SEL button to exit the module.
Pressing both the SEL and the RST buttons on power-
up will also load the factory settings and display rESEt. This allows operation in
the event of a memory failure or corruted data.
MIN DISPLAY ENABLE
YESNO
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«
NO
LO-En
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«
NO
FCS
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2.0
LO-t MIN CAPTURE DELAY TIME
When the Input Display is below the present MIN value for the entered delay
time, the meter will capture that display value as the new MIN reading. A delay
time helps to avoid false captures of sudden short spikes.
0.0 to 999.9 sec.
Select yES to perform either of the Factory Service Operations shown below.
FACTORY SERVICE OPERATIONS
yESNO
Enables the Minimum Display Capture capability.
The LD uses stored calibration values to provide accurate
measurements. Over time, the electrical characteristics of
the components inside the LD will slowly change with the
result that the stored calibration values no longer accurately
define the input circuit. For most applications, recalibration every 1 to 2 years
should be sufficient.
Calibration of the LD involves a calibration which should only be performed
by individuals experienced in calibrating electronic equipment. Allow 30 minute
warm up before performing any calibration related procedure. The following
procedures should be performed at an ambient temperature of 15 to 35 °C (59 to
95 °F).
CAUTION: The accuracy of the calibration equipment will directly affect the
accuracy of the LD.
Current Calibration
1. Connect the negative lead of a precision DC current source with an accuracy
of 0.01% or better to the COMM terminal. Leave the positive lead of the DC
current source unconnected.
2. With the display at CodE 48, press and hold the SEL button for 2 seconds. Unit
will display CAL NO
3. Press the RST button to select the range to be calibrated.
4. Press the SEL button. Display reads 0.0A
5. With the positive lead of the DC current source unconnected, press SEL.
Display reads CALC for about 8 seconds.
6. When the display reads the selected range, connect the positive lead of the DC
current source to current input and apply full-scale input signal for the range.
(Note: For 200 mA range, apply 100 mA as indicated on the display.)
7. Repeat steps 3 through 6 for each input range to be calibrated. When display
reads CAL NO, press the SEL button to exit calibration.
Voltage Calibration
1. Connect a precision DC voltage source with an accuracy of 0.01% or better
to the volt input and COMM terminals of the LD. Set the output of the voltage
source to zero.
2. With the display at CodE 48, press and hold the SEL button for 2 seconds. Unit
will display CAL NO.
3. Press the RST button to select the range to be calibrated.
4. Press the SEL button. Display reads 0.0v.
5. With the voltage source set to zero (or a dead short applied to the input), press
SEL. Display reads CALC for about 8 seconds.
6. When the display reads the selected range, apply full-scale input signal for
the range. (Note: For 200V range, apply 100V as indicated on the display.)
Press SEL. Display reads CALC for about 8 seconds.
7. Repeat steps 3 through 6 for each input range to be calibrated. When display
reads CAL NO, press the SEL button to exit calibration.
CALIBRATION
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66
CodE
RESTORE FACTORY DEFAULT SETTINGS
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48
CodE
5.2 MODULE 2 - SECONDARY FUNCTION PARAMETERS (2-SEC)
PARAMETER MENU
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2.0
HI-t MAX CAPTURE DELAY TIME
When the Input Display is above the present MAX value for the entered
delay time, the meter will capture that display value as the new MAX reading.
A delay time helps to avoid false captures of sudden short spikes.
0.0 to 999.9 sec.
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NO
HI-En
MAX DISPLAY ENABLE
YESNO
Enables the Maximum Display Capture capability.