Flowline LI55 Operating Manual

20

DataView

Level Controller

™

LI55 Instruction Manual

Flowline, Inc. | 10500 Humbolt Street, Los Alamitos, CA 90720 LIM60000FL2 Rev C

p 562.598.3015 f 562.431.8507 w flowline.com MN301033 Rev B1

DataView™ LI55 Level Controller Instruction Manual

DISCLAIMER

The information contained in this document is subject to change without notice.
Flowline 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.

!

CAUTION: Read complete

instructions prior to installation
and operation of the meter.

WARNING: Risk of
electric shock or
personal injury.

Warning!

This product is not recommended for life support
applications or applications where malfunctioning c ould
result in personal injury or property loss. Anyone using
this product for such applications does so at his/her own
risk. Flowline, Inc. shall not be held liable for damages
resulting from such improper use.

LIMITED WARRANTY

Flowline, Inc. warrants this product against defects in material or workmanship
for the specified period under “Specifications” from the date of shipment from the
factory. Flowline’s liability under this limited warranty shall not exceed the
purchase value, repair, or replacement of the defective unit.

REGISTERED TRADEMARKS

All trademarks mentioned in this document are the property of its respective
owners.

© 2008-2013 Flowline, Inc. All rights reserved. flowline.com

2 MN301033 Rev B1

DataView™ LI55 Level Controller Instruction Manual

TABLE OF CONTENTS

INTRODUCTION ................................................................................................. 7

ORDERING INFORMATION ............................................................................. 7

SPECIFICATIONS ............................................................................................ 8

General ...................................................................................................... 8

Process .................................................................................................. 10

Relays ...................................................................................................... 11

Isolated 4-20 mA Transmitter Output .................................................... 12

COMPLIANCE INFORMATION ...................................................................... 13

Safety ...................................................................................................... 13

Electromagnetic Compatibility .............................................................. 13

SAFETY INFORMATION ................................................................................. 14

INSTALLATION ............................................................................................... 15

Unpacking ............................................................................................... 15

Panel Mounting Instructions ................................................................. 15

Mounting Dimensions ............................................................................... 17

Configuration for 12 or 24 VDC Power ................................................. 18

Connections ........................................................................................... 19

Connectors Labeling ................................................................................ 20

Power Connections .................................................................................. 20

Signal Connections .................................................................................. 21

Relay Connections ................................................................................... 22

Switching Inductive Loads ......................................................................... 23

F4 Digital Input Connections .................................................................... 24

4-20 mA Output Connections ................................................................... 24

Analog Output Transmitter Power Supply ............................................... 24

External Relays Connections ................................................................... 25

Interlock Relay Feature ............................................................................ 26

SETUP AND PROGRAMMING ..................................................................... 27

Setting Numeric Values ......................................................................... 28

Menu Levels ............................................................................................ 29

Front Panel Buttons and Status LED Indicators ................................. 32

Main Menu Display Functions & Messages ......................................... 33

Main Menu .............................................................................................. 34

Setting the Units (units) ....................................................................... 35

Setting the Decimal Point (dEC Pt) .......................................................... 35

Scaling the Meter (SCALE) ........................................................................ 35

Setting the Relay Operation (rELAY) ........................................................ 36

Scaling the 4-20 mA Analog Output (Aout) ............................................. 36

Setting Up the Password (pAss) ............................................................. 36

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DataView™ LI55 Level Controller Instruction Manual

Full Menu Display Functions & Messages .................................................... 37

Full Menu ........................................................................................................ 40

SETTING UP THE METER WITH THE FULL MENU (sEtuP) ........................ 41

Setting the Input Signal (InPut) .............................................................. 42

Dual-Scale ......................................................................................... 42

Setting Custom Units or Tags (units) .................................................... 43

Setting the Decimal Point (dEC Pt) .......................................................... 44

Programming the Meter (proG) ............................................................... 45

Program Menu for Single Scale Process ........................................... 45

Program Menu for Dual-Scale Level Applications ............................. 45

Multi-Point Calibration & Scaling ........................................................ 46

Scaling the Meter (SCALE) ................................................................. 46

Dual-Scale for Level Application ........................................................ 47

Calibrating the Meter with External Source (CAL) .............................. 49

Setting the Display Parameter & Intensity (dsPLAY) ................................ 50

Display Setup Menu ................................................................................. 51

SETTING THE RELAY OPERATION (rELAY) ................................................. 52

Setting the Relay Action ........................................................................... 53

Programming Set and Reset Points ......................................................... 54

Setting Fail-Safe Operation ....................................................................... 54

Programming Time Delay ........................................................................ 54

Relay Action for Loss of 4-20 mA Input (Loop Break) .............................. 54

RELAY AND ALARM OPERATION DIAGRAMS ........................................... 55

High Alarm Operation (Set > Reset) ........................................................ 55

Low Alarm Operation (Set < Reset) ......................................................... 56

High Alarm with Fail-Safe Operation (Set > Reset) ................................. 57

Low Alarm with Fail-Safe Operation (Set < Reset) ................................. 58

Pump Alternation Control Operation ........................................................ 59

Relay Sampling Operation ....................................................................... 60

Signal Loss or Loop Break Relay Operation ........................................... 61

Time Delay Operation .............................................................................. 62

RELAY OPERATION DETAILS ..................................................................... 63

Overview .................................................................................................. 63

Relays Auto Initialization ........................................................................... 63

Fail-Safe Operation .................................................................................. 63

Front Panel LEDs ..................................................................................... 64

Latching and Non-Latching Relay Operation ........................................... 64

Non-Latching Relay (Auto) ..................................................................... 65

Non-Latching Relay (A-rn An) ................................................................ 65

Latching Relay (LAtcH) ........................................................................... 65

Latching Relay (Lt-CLr) .......................................................................... 66

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DataView™ LI55 Level Controller Instruction Manual

Acknowledging Relays ............................................................................. 66

Pump Alternation Control Applications (ALtErn) .................................... 67

Setting Up the Interlock Relay (Force On) Feature .................................. 70

SCALING THE 4-20 MA ANALOG OUTPUT (Aout) ...................................... 71

RESET MENU (rEsEt) .................................................................................... 72

CONTROL MENU (ContrL) ........................................................................... 72

SETTING UP THE PASSWORD (pAss) ........................................................ 73

Protecting or Locking the Meter ................................................................ 73

Making Changes to a Password Protected Meter .................................... 74

Disabling Password Protection ............................................................... 74

ADVANCED FEATURES MENU ...................................................................... 75

Advanced Features Menu & Display Messages ....................................... 76

Noise Filter (FiLtEr) ............................................................................... 79

Noise Filter Bypass (byPAss) ................................................................. 79

Rounding Feature (round) ..................................................................... 79

Select Menu (sELEct) ............................................................................ 80

Signal Input Conditioning (Functn) ......................................................... 80

Low-Flow Cutoff (CutoFF) ...................................................................... 83

Analog Output Programming (AoutPr) .................................................... 83

Programmable Function Keys User Menu (uSEr) .................................... 84

Tare (tArE) .............................................................................................. 85

Internal Source Calibration (ICAL) .......................................................... 86

Meter Copy Function (CoPy) .................................................................... 88

METER OPERATION ...................................................................................... 90

Front Panel Buttons Operation ............................................................. 90

Function Keys Operation ...................................................................... 90

F4 Operation ........................................................................................... 91

Maximum/Minimum Readings................................................................ 91

TROUBLESHOOTING ..................................................................................... 92

Diagnostics Menu (diAG) ...................................................................... 92

Determining Software Version ............................................................ 92

Reset Meter to Factory Defaults ........................................................... 93

Factory Defaults & User Settings ....................................................... 94

Troubleshooting Tips ............................................................................ 97

Alphabetical List of Display Functions & Messages .......................... 98

WARRANTY, RETURNS and LIMITATIONS ................................................ 104

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DataView™ LI55 Level Controller Instruction Manual

TABLE OF FIGURES

Figure 1. 1/8 DIN Panel Cutout Dimensions ....................................... 15

Figure 2. Panel Mounting Details ...................................................... 16

Figure 3. Meter Dimensions - Side View ........................................... 17

Figure 4. Meter Dimensions - Top View ............................................ 17

Figure 5. Jumper Configuration for 12/24 VDC Power ...................... 18

Figure 6. Transmitter Supply Voltage Selection ................................ 19

Figure 7. Connector Labeling for Fully Loaded LI55 .......................... 20

Figure 8. Power Connections ............................................................ 20

Figure 9. Transmitters Powered by Internal Supply ........................... 21

Figure 10. Transmitter Powered by Ext. Supply or Self-Powered ...... 21

Figure 11. Voltage Input Connections ............................................... 22

Figure 12. Relay Connections ........................................................... 22

Figure 13. AC and DC Loads Protection ........................................... 23

Figure 14. Low Voltage DC Loads Protection .................................... 23

Figure 15. F4 Digital Input Connections ............................................ 24

Figure 16. 4-20 mA Output Connections .......................................... 24

Figure 17. External Relays Module Connections ............................... 25

Figure 18. Interlock Connections ........................................................ 26

Figure 19. Acknowledge Relays w/Function Key or Digital Input ....... 66

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DataView™ LI55 Level Controller Instruction Manual

INTRODUCTION

The DataView LI55 is a multi-purpose, easy to use digital process meter ideal for
level, flow rate, temperature, or pressure transmitter applications. It accepts
current and voltage signals (e.g. 4-20 mA, 0-10 V). Three of the front panel
buttons can be custom-programmed for a specific operation. The analog input
can be scaled to display the process in two different scales; for example the main
display could indicate level in feet and the second display could indicate the
volume in gallons.

The basic model includes an isolated 24 VDC transmitter power supply that can
be used to power the input transmitter or other devices. An additional isolated
24 VDC power supply is included with the 4-20 mA output option. A digital input
is standard.

A fully loaded LI55 meter has the following: four SPDT relays, 4-20 mA output, and
two 24 VDC power supplies. The LI55 capabilities may be enhanced by adding a
four SPST relays expansion module (creating an eight-relay process meter).

The eight relays can be used for alarm indication or process control applications,
such as pump alternation control. The 4-20 mA isolated output, and digital I/O
options make the LI55 an excellent addition to any system.

ORDERING INFORMATION

Standard Models

85-265 VAC
Model

LI55-1001 LI55-8001 No options
LI55-1201 LI55-8201 2 relays (LI56-1201*)
LI55-1011 LI55-8011 4-20 mA output (LI56-1011*)
LI55-1401 LI55-8401 4 relays (LI56-1401*)
LI55-1211 LI55-8211 2 relays & 4-20 mA output (LI56-1211*)
LI55-1411 LI55-8411 4 relays & 4-20 mA output (LI56-1411*)
*Model number for replacement option card.

Accessories

Model Description

LI56-1400 4 SPST (Form A) relays
LI56-1000 Meter copy cable
LM91-1001 Single Display NEMA 4X Enclosure
LM91-2001 Dual Display NEMA 4X Enclosure

12/24 VDC
Model

Options Installed

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DataView™ LI55 Level Controller Instruction Manual

SPECIFICATIONS

Except where noted all specifications apply to operation at +25°C.

General

Display Main display: 0.60" (15 mm) high, red LEDs

Display
Intensity

Display
Update Rate

Overrange Display flashes 999999
Underrange Display flashes -99999
Display

Assignment

Programming
Methods

Noise Filter Programmable from 2 to 199 (0 will disable filter)
Filter Bypass Programmable from 0.1 to 99.9% of calibrated span
Recalibration All ranges are calibrated at the factory. Recalibration is

Max/Min
Display

Password

Power
Options

Isolated
Transmitter Power
Supply

Non-Volatile
Memory

Fuse Required external fuse: UL Recognized, 5 A max, slow blow; up to 6

Normal Mode
Rejection

Second display: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead zero blanking

Eight user selectable intensity levels

5/second (200 ms)

The main (Big) and small (Little) displays may be assigned to PV1,
PV2, PCT, d r-u, d gross, d nt-g, max/min, max & min, set points, or
units (small display only).

Four front panel buttons 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.

Three programmable passwords restrict modification of
programmed settings.

Pass 1: Allows use of function keys and digital input
Pass 2: Allows use of function keys, digital input and editing
set/reset points
Pass 3: Restricts all programming, function keys, and digital input.

85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max (LI55-1__1 series).
12/24 VDC  10%, 15 W max (LI55-8__1 series)

Terminals P+ & P-: 24 VDC  10%. 12/24 VDC powered models selectable
for 24, 10, or 5 VDC supply (internal jumper J4).
85-265 VAC models rated @ 200 mA max, 12/24 VDC powered models
rated @ 100 mA max, @ 50 mA max for 5 or 10 VDC supply.

All programmed settings are stored in non-volatile memory for a
minimum of ten years if power is lost.

meters may share one 5 A fuse

Greater than 60 dB at 50/60 Hz

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DataView™ LI55 Level Controller Instruction Manual

Isolation 4 kV input/output-to-power line

500 V input-to-output or output-to-P+ supply

Overvoltage
Category

Installation Overvoltage Category II:
Local level with smaller transient overvoltages than Installation
Overvoltage Category III.

Environmental Operating temperature range: -40 to 65°C

Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing

Connections Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45

for external relays, digital I/O, and serial communication adapters.

Enclosure 1/8 DIN, high impact plastic, UL 94V-0, color: black
Mounting 1/8 DIN panel cutout required:

3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket assemblies are provided.

Tightening Torque Screw terminal connectors: 5 lb-in (0.56 Nm)
Overall

Dimensions

4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm)
(W x H x D)

Weight 9.5 oz (269 g)
Warranty 3 years parts & labor

MN301033 Rev B1 9

DataView™ LI55 Level Controller Instruction Manual

Process Input

Inputs Field selectable:

Accuracy ±0.03% of calibrated span ±1 count,

Temperature Drift

Signal Input
Conditioning

Multi-Point
Linearization

Programmable
Exponent

Round H Tank Diameter & Length: 999.999 inch or cm calculates volume in gallons

Low-Flow
Cutoff

Decimal Point Up to five decimal places or none:

0-20, 4-20 mA, 10 V (0-5, 1-5, 0-10 V)

square root & programmable exponent accuracy
range: 10-100% of calibrated span

0.005% of calibrated span/C max from 0 to 65C ambient,

0.01% of calibrated span/C max from -40 to 0C ambient

Linear, square root, programmable exponent, or
round horizontal tank volume calculation

2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale Level feature)

1.0001 to 2.9999

or liters respectively.

0-999999 (0 disables cutoff function)

d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd

Calibration Range Input

Range

Minimum Span
Input 1 & Input 2

Input
Impedance

Input
Overload

F4 Digital Input
Contacts

F4 Digital Input
Logic Levels

4-20 mA 0.15 mA
10 V
An error message will appear if the input 1 and input 2 signals are
too close together.

Voltage ranges: greater than 500 k
Current ranges: 50 - 100  (depending on resettable fuse
impedance)

Current input protected by resettable fuse, 30 VDC max.
Fuse resets automatically after fault is removed.

3.3 VDC on contact. Connect normally open contacts across F4 to
COM.

Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC

0.10 V

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DataView™ LI55 Level Controller Instruction Manual

Relays

Rating 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external;

Noise
Suppression

Deadband 0-100% of span, user programmable
High Or Low Alarm User may program any alarm for high or low trip point.

Relay
Operation

Relay Reset User selectable via front panel buttons

rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50
W) @ 125/250 VAC for inductive loads

Noise suppression is recommended for each relay contact switching
inductive loads; see page 23 for details.

Unused alarm LEDs and relays may be disabled (turn off).

Automatic (non-latching) and/or manual reset
Latching (requires manual acknowledge) with/without clear
Pump alternation control (2 to 8 relays)
Sampling (based on time)
Off (disable unused relays and enable Interlock feature)
Manual on/off control mode

1. Automatic reset only (non-latching), when the input passes the
reset point.

2. Automatic + manual reset at any time (non-latching)

3. Manual reset only, at any time (latching)

4. Manual reset only after alarm condition has cleared (latching)

Note: Front panel button or digital input may be assigned to

acknowledge relays programmed for manual reset.

Time Delay 0 to 999.9 seconds, on & off relay time delays

Programmable and independent for each relay

Fail-Safe
Operation

Auto
Initialization

Programmable and independent for each relay.

Note: Relay coil is energized in non-alarm condition.

In case of power failure, relay will go to alarm state.

When power is applied to the meter, relays will reflect the state of
the input to the meter.

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DataView™ LI55 Level Controller Instruction Manual

Isolated 4-20 mA Transmitter Output

Output Source Process variable (PV), max, min, set points 1-8, or manual control

Scaling Range 1.000 to 23.000 mA for any display range
Calibration Factory calibrated: 4.000 to 20.000 = 4-20 mA output
Analog Out

Programming
Accuracy ± 0.1% of span ± 0.004 mA
Temperature Drift

Isolated
Transmitter Power
Supply

External Loop
Power Supply

Output Loop
Resistance

35 VDC (external)

mode

23.000 mA maximum for all parameters:

Overrange, underrange, max, min, and break

0.4 µA/C max from 0 to 65C ambient,

0.8 µA/C max from -40 to 0C ambient

Note: Analog output drift is separate from input drift.

Terminals I+ & R: 24 VDC ± 10%. May be used to power the
4-20 mA output or other devices. Refer to Figure 5 on page

18 and Figure 16 on page 24.
All models rated @ 40 mA max.

35 VDC maximum

Power supply Minimum Maximum

24 VDC

10  700 

100  1200 

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DataView™ LI55 Level Controller Instruction Manual

COMPLIANCE INFORMATION

Safety

UL & C-UL LISTED USA & Canada

UL File Number E193723
Front Panel UL Type 4X, NEMA 4X, IP65; panel gasket provided
Low Voltage

Directive

UL 508 Industrial Control Equipment

EN 61010-1:2001
Safety requirements for measurement, control, and
laboratory use

Electromagnetic Compatibility

Emissions EN 55022:2006/A1:2007

Radiated
Emissions

AC Mains
Conducted
Emissions

Immunity EN 61326-1:2006

RFI - Amplitude
Modulated

Electrical Fast
Transients

Electrostatic
Discharge

RFI - Conducted 10V, 0.15-80 MHz, 1kHz 80% AM

AC Surge ±2kV Common, ±1kV Differential

Surge 1KV (CM)

Power-Frequency
Magnetic Field

Voltage Dips 40%V for 5 & 50 periods

Voltage
Interruptions

Class A ITE emissions requirements

Class A

Class A

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

3 A/m 70%V for 0.5 period

70%V for 25 periods

<5%V for 250 periods

MN301033 Rev B1 13

DataView™ LI55 Level Controller Instruction Manual

Note:

Testing was conducted on LI55 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 flowline.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 or
personal injury.

14 MN301033 Rev B1

DataView™ LI55 Level Controller Instruction Manual

INSTALLATION

There is no need to remove the meter from its case to complete the installation,
wiring, and setup of the meter for most applications.

Instructions are provided for setting up a 12/24 VDC powered meter to operate
from 12 VDC (see page18) and for changing the transmitter power supply to
output 5 or 10 VDC instead of 24 VDC (see page18).

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 Instructions

 Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x

 45 mm). Refer to Figure 1 below, for more details.

 Clearance: allow at least 6.0" (152 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.

Refer to page
17 for mounting
dimensions

Figure 1. 1/8 DIN Panel Cutout Dimensions

MN301033 Rev B1 15

DataView™ LI55 Level Controller Instruction Manual

Gasket

Panel

Mounting

Bracket

Figure 2. Panel Mounting Details

Mounting

Screw

Removable
Connectors

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DataView™ LI55 Level Controller Instruction Manual

Mounting Dimensions

Figure 3. Meter Dimensions - Side View

O

-

R

+

C

C

C

N

N

N

C

N

O

O

C

C

N

N

C

N

C

N

O

Figure 4. Meter Dimensions - Top View

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DataView™ LI55 Level Controller Instruction Manual

Configuration for 12 or 24 VDC Power

Do not exceed voltage rating of the selected configuration.

Warning!

Meters equipped with the 12/24 VDC power option are shipped from the factory
ready to operate from 24 VDC.

To configure the meter for 12 VDC power:

1. Remove all the connectors.

2. Unscrew the back cover.

3. Slide the back cover about 1 inch.

4. Configure the J9 jumper, located behind the power connector, for 12 V
as shown below.

J9 CONFIGURATION

+
_

MAIN BOARD

J9

12 V

24 V

Factory
Default

M-LINK

24 VDC
12 VDC
POWER

Figure 5. Jumper Configuration for 12/24 VDC Powe r

(APPLIES TO LI55-8__1 VERSION ONLY)

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DataView™ LI55 Level Controller

Instruction Manual

Transmitter Supply Voltage Selection (P+, P-)

All meters, including models equipped with the 12/24 VDC power option, are
shipped from the factory configured to provide 24 VDC power for the transmitter
or sensor.

If the transmitter requires 5 or 10 VDC excitation, the internal jumper J4 must be
configured accordingly.

To access the voltage selection jumper:

1. Remove all the wiring connectors.

2. Unscrew the back cover.

3. Slide out the back cover by about 1 inch.

4. Configure the J4 jumper, located behind the input signal

connector, for the desired excitation voltage as shown.

Figure 6. Transmitter Supply Voltage Selection

(Do not change if using a Flowline 4-20 mA transmitter)

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.

MN301033 Rev B1 19

DataView™ LI55 Level Controller Instruction Manual

Connectors Labeling

The connectors’ label, affixed to the meter, shows the location of all connectors
available with requested configuration.

Do not connect any equipment other than
Flowline’s expansion modules, cables, or meters
to the RJ45 M-LINK connector. Otherwise damage

Warning!

will occur to the equipment and the meter.

Figure 7. Connector Labeling for Fully Loaded LI55

Power Connections

The external power source to DataView is connected through a two-terminal
connector labeled
POWER on Figure 7 on page 20. The meter will operate regardless of DC polarity
connection. The + and - symbols are only a suggested wiring convention.

POWER

-

+

AC or DC

POWER

Required External Fuse:

5 A max, 250 V Slow Blow

Figure 8. Power Connections 6000Power

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DataView™ LI55 Level Controller Instruction Manual

Signal Connections

Signal connections are made to a six-terminal connector labeled
SIGNAL on Figure 7. The COM (common) terminal is the return for the 4-20 mA
and the 10 V input signals.

Current and Voltage Connections

The following figures show examples of current and voltage connections. T
here are no switches or jumpers to set up for current and voltage inputs. Setup and

programming is performed through the front panel buttons.

Most Common Wiring

Figure 9. Transmitters Powered by Internal Supply

Figure 10. Transmitter Powered by Ext. Supply or Self-Powered

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.

MN301033 Rev B1 21

DataView™ LI55 Level Controller Instruction Manual

Figure 11. Voltage Input Connections

The meter is capable of accepting any voltage from -10 VDC to +10 VDC.

Relay Connections

Relay connections are made to two six-terminal connectors labeled
RELAY1 – RELAY4 on Figure 7. Each relay’s C terminal is common only to the
normally open (NO) and normally closed (NC) contacts of the corresponding
relay. The relays’ C terminals should not be confused with the COM (common)
terminal of the INPUT SIGNAL connector.

RELAY4 RELAY3

4365 21

CNONO NC NC C

Figure 12. Relay Connections

RELAY2 RELAY1

4365 21

CNONO NC NC C

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DataView™ LI55 Level Controller

Instruction Manual

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

R

Figure 13. AC and DC Loads Protection

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. Use capacitors rated for 250 VAC.

2. RC networks may affect load release time of solenoid loads.
Check to confirm proper operation.

3. Install the RC network at the meter's relay screw terminals. An RC network
may also be installed across the load. Experiment for best results.

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.

Figure 14. Low Voltage DC Loads Protection

Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.

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DataView™ LI55 Level Controller Instruction Manual

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input is connected with a
normally open contact across F4 and COM, or with an active low signal applied
to F4.

Figure 15. F4 Digital Input Connections

4-20 mA Output Connections

Connections for the 4-20 mA transmitter output are made to the connector
terminals labeled MA OUT. The 4-20 mA output may be powered internally or
from an external power supply.

24 V

MA OUT

-

+

12-35 VDC

Power

Supply

RI- I+

132

RELAY1

321

MA OUT

+

4-20 mA Input

Remote Display,

Chart Recorder, Etc.

24 V

RI- I+

132

-

RELAY1

321

-

+

4-20 mA

Input Meter

Figure 16. 4-20 mA Output Connections

Analog Output Transmitter Power Supply

The internal 24 VDC power supply powering the analog output may be used to
power other devices, if the analog output is not used. The I+ terminal is the +24 V
and the R terminal is the return.

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DataView™ LI55 Level Controller Instruction Manual

External Relays Connections

The relay expansion module LI56-1400 is connected to the meter using a CAT5
cable provided with each module. The two RJ45 connectors on the expansion
modules are identical and interchangeable; they are used to connect additional
modules to the system.

Do not connect or disconnect the expansion modules with the
power on!

Warning!

More detailed instructions are provided with each optional
expansion module.

RLY5 RLY6 RLY7 RLY8

12

345678

NO C NO C NO C NO C

Figure 17. External Relays Module Connections

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DataView™ LI55 Level Controller Instruction Manual

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more,
alarm/control relays for use as interlock relay(s). An Interlock contact is wired to
the digital input and triggers the interlock relay. This feature is enabled by
configuring the relay and digital input (see page 70).

In one example, a dry interlock contacts are connected in series to the F4 digital
input which will be used to force on (energize) the assigned interlock power relay
when all interlock contacts are closed (safe). The interlock relay front panel LED
flashes when locked out. The interlock relay would be wired in-series with the
load (N/O contact). See below.

Figure 18. Interlock Connections

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DataView™ LI55 Level Controller Instruction Manual

SETUP AND PROGRAMMING

The meter is factory calibrated prior to shipment to read in
milliamps and volts depending on the input selection. The
calibration equipment is certified to NIST standards.

Overview

There are no jumpers to set for the meter input selection.

Setup and programming is done through the front panel buttons.

After power and input signal connections have been completed and verified,
apply power to the meter.

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DataView™ LI55 Level Controller Instruction Manual

Setting Numeric Values

The numeric values are set using the Right and Up buttons. Press Right button to
select next digit and Up button to increment digit value.

The digit being changed is displayed brighter than the rest.

Press and hold Up button to auto-increment the display value.

Press the Enter button, at any time, to accept a setting or Menu button to exit
without saving changes.

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DataView™ LI55 Level Controller Instruction Manual

Menu Levels

The DataView has three menu levels available for quicker setup and
programming.

Main Menu

The Main Menu contains all of the most commonly used features of the DataView
meter. These features are duplicated and expanded upon by the Full Menu, see
page 37.

See Main Menu on page 33 for more details.

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DataView™ LI55 Level Controller Instruction Manual

Full Menu

The Full Menu features added functionality and settings allowing for a more
customized setup and programming. It consists of the following functions: Setup,
Reset, Control, and Password.

Press and hold the Menu button for 5 seconds to enter the Full Menu. Press the
Menu button to exit.

See on page 37 for more details.

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