Magnetrol ES Modulevel User manual

Digital ES II Modulevel
with HART Communication
and Analog EZ Modulevel
Electronic Liquid Level
Transmitters
ES/EZ Modulevel®
Top Hat Assembly Design
Installation and Operating Manual

48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Read this Manual Before Installing
This manual provides information on the igital ES II and
Analog EZ Modulevel Electronic Transmitters. It is impor-
tant that all instructions are read carefully and followed in
sequence. etailed installation, wiring and calibration
instructions are included in this manual.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in
narrative form. The following styles are used for notes,
cautions, and warnings.
NOTES
Notes contain information that augments or clarifies an
operating step. Notes do not normally contain actions.
They follow the procedural steps to which they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce a
component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific mate-
rials. In this manual, a caution box indicates a poten-
tially hazardous situation which, if not avoided, may
result in minor or moderate injury.
WARNINGS
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
Safety Messages
Follow all standard industry procedures for servicing elec-
trical and computer equipment when working with or
around high voltage. Always shut off the power supply
before touching any components.
Electrical components are sensitive to electrostatic
discharge. To prevent equipment damage, observe safety
procedures when working with electrostatic sensitive
components.
WARNING! Explosion hazard. o not connect or
disconnect equipment unless power has been switched off
or the area is known to be non-hazardous.
Low Voltage Directive
For use in Category II installations. If equipment is used
in a manner not specified by manufacturer, protection pro-
vided by equipment may be impaired.
Notice of Trademark, Copyright and Limitations
Magnetrol & Magnetrol logotype and STI & STI logotype,
and Modulevel are registered trademarks of Magnetrol
International, Incorporated. igital ES II, igital ES II
Modulevel, Analog EZ & Analog EZ Modulevel, Smart EZ
& Smart EZ Modulevel are tradenames of Magnetrol
International, Incorporated.
Copyright © 2007 Magnetrol International, Incorporated.
All rights reserved.
Performance specifications are effective with date of issue
and are subject to change without notice. Magnetrol/STI
reserves the right to make changes to the product described
in this manual at any time without notice. Magnetrol/STI
makes no warranty with respect to the accuracy of the
information in this manual.
Warranty
All Magnetrol/STI electronic level and flow controls are
warranted free of defects in materials or workmanship for
one full year from the date of original factory shipment.
If returned within the warranty period; and, upon factory
inspection of the control, the cause of the claim is deter-
mined to be covered under the warranty; then,
Magnetrol/STI will repair or replace the control at no cost
to the purchaser (or owner) other than transportation.
Magnetrol/STI shall not be liable for misapplication, labor
claims, direct or consequential damage or expense arising
from the installation or use of equipment. There are no
other warranties expressed or implied, except special writ-
ten warranties covering some Magnetrol products.
Quality assurance
The quality assurance system in place at Magnetrol/STI
guarantees the highest level of quality throughout the
company. Magnetrol/STI is committed to providing full
customer satisfaction both in quality products and
quality service.
Magnetrol’s quality assurance system is
registered to ISO 9001 affirming its
commitment to known international
quality standards providing the strongest
assurance of product/service quality
available.

Table of Contents
1.0 Complete Installation
1.1 Unpacking.............................................................1
1.2 Electrostatic ischarge (ES ) ...............................1
1.3 Before you begin....................................................2
1.3.1 Site Preparation ..........................................2
1.3.2 Equipment and Tools..................................2
1.3.3 Operational Considerations ........................3
1.4 Mounting ..............................................................3
1.4.1 Installing a Tank Top Mounted
Modulevel...................................................3
1.4.2 Installing a Chamber Type modulevel.........4
2.0 Analog E Modulevel Wiring and Calibration
2.1 Integral Transmitter Wiring...................................6
2.2 Remote Transmitter Wiring...................................7
2.3 Hazardous Location Wiring ..................................7
2.4 Calibrating the Analog EZ Modulevel.................10
2.4.1 irect Acting Field Calibration.................10
2.4.2 Reverse Acting Field Calibration...............11
2.4.3 Bench Calibration.....................................11
3.0 Digital ES II Modulevel Wiring and Calibration
3.1 Integral Transmitter Wiring.................................14
3.2 Remote Transmitter Wiring.................................15
3.3 Hazardous Location Wiring ................................16
3.4 igital ES II Push-button Calibration.................16
3.4.1 Push-button Field Calibration ..................16
3.4.2 Push-button Bench Calibration ................17
3.4.3 igital Meter Calibration .........................18
3.4.4 Interface Calibration.................................19
3.4.4.1 Calibration in Process Liquids .....20
3.4.4.2 Calibration in water only for
interface of another liquid over
water............................................20
3.4.4.3 Calibration in water only for
interface of two other liquids .......20
3.4.4.3.1 Lower S.G. less than
or equal to 1.0 .............20
3.4.4.3.2 Lower S.G. greater
than 1.0.......................21
3.5 Configuration Using HART................................22
3.5.1 Connections .............................................22
3.5.2 isplay Menu...........................................22
3.5.3 Basic Field Calibration Using Hart HHC ..22
3.5.4 Hart Menu ...............................................23
4.0 Reference Information
4.1 escription..........................................................25
4.2 Theory of Operation ...........................................26
4.2.1 isplacer Buoyancy ..................................26
4.2.2 LV T.......................................................26
4.3 Troubleshooting...................................................26
4.4 Maintenance of Analog EZ Modulevel ................28
4.4.1 Replacing Transmitter PC Board ..............28
4.4.2 Replacing Power Supply PC Board ...........28
4.4.3 Replacing LV T ......................................29
4.4.4 Checking the LV T Winding Resistance.29
4.5 Maintenance of igital ES II Modulevel.............29
4.5.1 Replacing Transmitter PC Board ..............29
4.5.2 Replacing LV T ......................................30
4.5.3 Checking the LV T Winding Resistance.30
4.6 Agency Approvals ................................................31
4.6.1 FM (Factory Mutual)................................31
4.6.2 CSA (Canadian Standards Association).....31
4.6.3 CENELEC (Comiteí Européen de
Normalisation Electotechnique)................32
4.7 Parts ....................................................................33
4.7.1 Replacement PC Boards ...........................33
4.7.2 Transmitter Head Parts .............................34
4.7.3 Recommended Spare Parts........................34
4.7.4 Mechanical Replacement Parts..................35
4.7.5 Upgrade to ESII Electronics .....................37
4.7.5.1 ES to ES II Conversion ...............37
4.7.5.2 EZ to ES II Conversion...............38
4.8 Specifications.......................................................39
4.8.1 Functional ................................................39
4.8.2 Performance..............................................40
4.8.3 Physical.....................................................41
4.9 Model Numbers ..................................................43
4.9.1 Models for Steam Applications
(max. 600 lbs.)..........................................43
4.9.2 Models for Steam Applications
(900-2500 lbs.).........................................45
4.9.3 Models for Non-Steam Applications
(max. 600 lbs.)..........................................47
Glossary .................................................................49
Electronic Modulevel (Top Hat Assembly Design)
Displacer Level Transmitter
Installation, Operation and Maintenance Manual
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

1.0 Mechanical Installation
This section provides detailed procedures for properly
installing the Electronic Modulevel isplacer Level
Transmitter.
1.1 Unpacking
Unpack the instrument carefully. Take care not to bend the
displacer stem or enclosing tube. Ensure all components
have been removed from the packing material. Check all
the contents against the packing slip and report any dis-
crepancies to the factory.
Before proceeding with the installation, do the following:
• Inspect all components for damage. Report any damage to
the carrier within 24 hours.
• On chambered units, remove the shipping strap and wire
assembly holding the displacer in place. This assembly
must be removed through the bottom chamber connection
before start-up.
Caution: If reshipping to another location, the displacer
must again be secured using the same strap and
wire assembly.
• Check that the model number on the nameplate matches
the packing slip and purchase order.
• Record the model and serial numbers for future reference
when ordering parts.
Model Number
Serial Number
1.2 Electrostatic Discharge (ESD)
Handling Procedure
Magnetrol’s electronic instruments are manufactured to the
highest quality standards. These instruments use electronic
components which may be damaged by static electricity
present in most work environments.
The following steps are recommended to reduce the risk of
component failure due to electrostatic discharge.
• Ship and store circuit boards in anti-static bags. If an anti-
static bag is not available, wrap the board in aluminum
foil. o not place boards on foam packing materials.
• Use a grounding wrist strap when installing and removing
circuit boards. A grounded workstation is recommended.
148-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

• Handle circuit boards only by the edges. o not touch
components or connector pins.
• Ensure that all electrical connections are completely made
and that none are partial or floating. Ground all equipment
to a good, earth ground.
1.3 Before You Begin
1.3.1 Site Preparation
Each Modulevel transmitter is built to match the specific
physical specifications of the required installation. Ensure
that the process connection(s) on the vessel matches the
Modulevel’s process connection(s).
See Mounting, Section 1.4.
Ensure that the wiring between the power supply and
Modulevel transmitter are complete and correct for the
type of installation.
See Specifications, Section 4.8.
When installing the Modulevel transmitter in a general
purpose or hazardous area, local, state and federal regula-
tions and guidelines must be observed.
See iring, Sections 2.0 & 3.0.
1.3.2 Equipment and Tools
No special equipment or tools are required to install
the Electronic Modulevel. The following items are
recommended:
• Wrenches, flange gaskets and flange bolting appropriate
for process connection(s)
• Flat-blade screwdriver
• Level
•1⁄8" Allen wrench
• Power supply which matches voltage identification on
nameplate
• Multimeter with maximum sensitivity of 100 millivolts for
120 or 240 VAC transmitters
• 250 to 450 ohm resistor for transmitters with HART
communication
2
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

1.3.3 Operational Considerations
The Modulevel transmitter should be located for easy
access for service, configuration, and monitoring. There
should be sufficient headroom to allow installation and
removal of the transmitter head and, in cases of tank top
configuration, the displacer. Special precautions should be
made to prevent exposure to corrosive atmosphere, exces-
sive vibration, shock, or physical damage.
The operating temperature range for the transmitter elec-
tronics is -40° to +160° F (-40° to +70° C). The operating
temperature range for the digital display is -4° to +160° F
(-20° to +70° C).
Operation of all buoyancy type level devices should be
done in such a way as to minimize the action of dynamic
forces on the float or displacer sensing element. Good prac-
tice for reducing the likelihood of damage to the control is
too equalize pressure across the device very slowly.
1.4 Mounting
The Modulevel transmitter can be mounted to a tank using a
variety of configurations and process connections. Generally,
either a threaded, welded or flanged connection is used with
an external cage. A flanged connection is always used on a
tank top model. For information about the sizes and types of
connections available, see Model Numbers, Section 4.9.
Ensure all mounting connections are in place on the tank
and properly sized for the specific unit being installed.
Compare the model on the nameplate with the product
information to ensure the Modulevel transmitter is correct
for the intended installation.
1.4.1 Installing a Tank Top Mounted Modulevel (E61, E62,
E51 and E52 models)
Figure 1 illustrates a typical tank top installation.
Before installing, ensure that:
• There is adequate headroom for the installation of the
Modulevel head and displacer and that it has unobstructed
entry into the vessel.
• Using a level, the mounting flange is horizontal within 3°.
• If the adjustable hanger assembly (P/N 32-3110-001) is
used, it is cut to the required length and attached to the
displacer stem.
Liquid
Level
Displacer
Figure 1
Tank Top Mounted
Installation
348-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

Note: The adjustable hanger assembly is used when the top
of the displacer and, therefore, the top of the measure-
ment range must be positioned in the vessel more
than 5" (127 mm) below the mounting flange in the
case of models 600# or less, or more than 9.31" below
the mounting flange on models 900# or greater. The
maximum hanger cable length is 8 feet.
• A stilling well is installed for applications where continuous
agitation is present. The stilling well must be vertically level
so as not to restrict displacer movement.
See Figure 2 for a typical stilling well installation.
• The process temperature, pressure and specific gravity are
within the unit’s specifications for installation.
See Specifications, Section 4.8.
To install:
1. Carefully place the displacer in the vessel. Align the gasket
on the flange.
2. Align the Modulevel flange with the flanged connection on
the vessel.
3. Make sure the flange gasket is seated properly. Install flange
bolts and nuts.
4. Tighten alternating flange bolts in a star pattern.
Caution: All Modulevels are shipped from the factory with the
enclosing tube tightened and the transmitter head
set screws locked to the enclosing tube. Failure to
loosen the set screws prior to repositioning the
supply and output connections may cause the
enclosing tube to loosen, resulting in the possible
leakage of the process liquid or vapor.
5. Loosen the transmitter head lock screws (socket type) and
position conduit outlet in the desired direction.
See Figure 3.
6. Retighten lock screws.
Note: Since the transmitter head is rotatable through 360º,
it is important to make certain that the controller
locking screws are tight before making electrical
connections.
1.4.2 Installing a Chamber Type Modulevel (E63, E64, E65,
E66, E53, and E55)
The chamber type Modulevel is mounted on the side of
the vessel with either a side/side or side/bottom connec-
tion, as furnished. Figure 4 on page 5 illustrates a typical
chamber type installation.
Use stilling well in
case of turbluent
medium
Size 1/8"
Always unlock for repositioning or removal
of head assembly and always relock,
after final positioning
Figure 2
Tank Top Mounted
with Stilling Well
Figure 3
Transmitter Head
Lock Screws
4
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

Before installing, ensure that:
• There is adequate room for the installation of the
Modulevel.
• Using a level, the vessel mounting connections are level
within 3° of vertical.
• The process temperature, pressure and specific gravity are
within the unit’s specifications for installation.
See Specifications, Section 4.8.
• If not already done, remove the shipping strap and wire
assembly holding the displacer in place in the chamber.
This assembly must be removed through the bottom
chamber connection or drain before start-up.
To install:
1. Carefully align the Modulevel chamber process connec-
tions with the vessel connections.
2. Attach the process connections accordingly, based on the
type of connection. Appropriate gaskets and bolting will
be required if using flanged process connections.
Note: It is recommended that shut-off valves be installed in
each equalizing line to the chamber, along with a
blow-down valve (refer to Figure 4). Equalizing lines
should be sized at least as large as the connections
provided at the chamber.
3. Make sure that the chamber is vertically level within 3° in
each direction to ensure frictionless operation of the inter-
nal displacer.
Caution: All Modulevels are shipped from the factory with
the enclosing tube tightened and the transmitter
head set screws locked to the enclosing tube.
Failure to loosen the set screws prior to reposition-
ing the supply and output connections may cause
the enclosing tube to loosen, resulting in the possi-
ble leakage of the process liquid or vapor.
4. Loosen the transmitter head lock screws (socket type) and
position conduit outlet in the desired direction. See Figure
3 on page 4.
5. Retighten lock screws.
Note: Since the transmitter head is rotatable through 360º, it
is important to make certain that the controller locking
screws are tight before making electrical connections.
548-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Liquid
Level
Figure 4
Chamber Type Installation
Side-Side Process Connections

Series EZB, EZC, GZR, GZS,
GZ2 and GZ3 Blind Transmitters
120 and 240 VAC Supply Conduit Junction Box
AC, High (black)
AC, Ground (green)
AC, Low (white)
(+) 4-20 mA output
(–) 4-20 mA output
To
Transmitter
Housing
2.0 Analog EZ Modulevel iring
and Calibration
Caution: The Analog EZ Modulevel Transmitter operates at
voltages 12–36 VD , 120 VA or 240 VA .
Incorrect voltages will damage the transmitter.
All wiring between the power supply and the Modulevel
transmitter on 24 V C units should be made using
18-22 AWG shielded twisted pair instrument cable or on
120 V C and 240 VAC units should be made using a
quantity of 14-16 AWG conductors and ground. All wiring
connections to the transmitter are made in the attached
junction box.
NO WIRING CONNECTIONS ARE REQUIRE
INSI E THE TRANSMITTER HOUSING ON
INTEGRAL UNITS. Instructions for wiring the
Modulevel transmitter depend on type of mounting, inte-
gral or remote, and the area classification required, intrinsi-
cally safe, explosion proof or non-incendive.
WARNING! Turn off all power before making any electrical
connection.
2.1 Integral Transmitter iring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the nameplate
matches the power supply. Do NOT attempt to operate
this unit at voltages other than as identified as it will
damage the unit.
1. Remove the cover to the junction box of the transmitter.
2. If unit is supplied with meter, access terminal board by
removing the two screws securing the meter/bracket assem-
bly to the junction box housing and moving meter/bracket
assembly out of the way. o not disconnect wires. If unit
has no meter, terminal board is already accessible.
3. Install an approved conduit seal within 18" of the junction
box for explosion proof installation. For IS installation, see
page 9.
4. Pull the supply wires and connect to the terminals as indi-
cated in the wiring diagram for the unit having the appro-
priate voltage and meter configuration, see Figures 5, 6, 7
& 8 on pages 6-7.
5. Replace meter/bracket assembly, if supplied, by positioning
the holes in the bracket assembly over those in the junction
box housing and replacing the two screws.
6. Replace the junction box cover. Ensure that the cover is
tightened down sufficiently to compress o-ring seal.
6
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Series EZL, EZN, GZU, GZV,
GZ5 and GZ6 Transmitters with Meter
120 and 240 VAC Supply Conduit Junction Box
– VE
meter
+ VE
meter
Meter
0
2
0
4
0
6
0
8
0
1
0
0
AC, High (black)
AC, Ground (green)
4-20 mA
output
To
Transmitter
Housing
AC, Low (white)
4-20 mA output
M–M +
Figure 6
Figure 5

748-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Note: When operated from a 24 VD source, the maximum
allowable loop resistance is 480 ohms for Analog EZ
Modulevels. See Figure 9.
When operated from a 120 or 240 VAC source, the
Analog EZ current can only be monitored from the
meter terminals (M+ and M-) using a multimeter with
maximum sensitivity of 100 millivolts.
Caution: Instrument and conduit junction box covers must
be in place and tightly sealed at all times during
operation.
2.2 Remote Transmitter iring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the name-
plate matches the power supply. Do NOT attempt to
operate this unit at voltages other than as identified as
it will damage the unit.
1. Remove the cover of the remote transmitter and of the
LV T housing.
2. Connect one end of the six conductor cable (P/N
037-3218-xxx or 037-3220-xxx) to the LV T terminal
block and the other end to the terminal block within
the remote transmitter housing. Be sure to match the
six discrete numbered wires with the numbers on each
terminal block. See Figure 10.
3. Wire the power supply to the terminal board in the
junction box and seal the conduit per the instructions in
Section 2.1.
Note: When operated from a 24 VD source, the maximum
allowable loop resistance is 480 ohms for Analog EZ
Modulevels. See Figure 9.
When operated from a 120 or 240 VAC source, the
Analog EZ current can only be monitored from the meter
terminals (M+ and M-) using a multimeter with maximum
sensitivity of 100 millivolts.
Caution: Instrument and conduit junction box covers must
be in place and tightly sealed at all times during
operation.
2.3 Hazardous Location iring
Figure 11 illustrates the proper installation for Intrinsically
Safe wiring. Figure 12 illustrates Intrinsically Safe
Connections/Non-incendive wiring. See page 9.
NOTE: Intrinsically Safe onnections require that the remote
mount electronics and LVDT housings must be installed
explosion proof.
– VE
meter
DC– DC+
Red
+ VE
meter
M–
Meter
Black
0
2
0
4
0
6
0
8
0
1
0
0
(+) 24 vDC
(–) 24 vDC
EZG, EZI, EZF, EZK, GZK,
GZT, RZT and RZX Transmitter with Meter
24 Vdc Supply Conduit Junction Box
Figure 8
(+) 24 VDC
Red
Black
DC–
(–) 24 VDC
M–
DC+
EZA, EZD, EZE, EZH, GZH,
GZQ, RZQ and RZW Blind Transmitter
24 Vdc Supply Conduit Junction Box
Figure 7

1
2
3
5
6
4
Transmitter Housing
Terminal Block
Remote Transmitter Housing
11
2
3
4
5
6
2
3
5
6
4
To
Integral
LVDT
Housing
To
Transmitter
PC Board
Transmitter Housing
Terminal Block Detail
white
black
green
black
red
black
white/yellow
brown
white/green
white/black
blue
white/red
Red
Blue
Black Yellow
Brown
Green
Blk
Blu
Red
Yel
Brn
Grn
1
23
56 4
1
2
3
5
6
4
Integral LVDT Housing
Terminal Block
Figure 10
Analog EZ
Remote Mounted Transmitter Wiring
Figure 9
Analog EZ
Maximum Loop Resistance
8
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Power Supply Voltage (VDC)
Loop Resistance vs. Power Supply Voltage
12 14 16 18 20 22 24 26 28 30 32 34 36 38
0
100
200
300
400
500
600
700
800
900
1100
1000
MAXIMUM LOOP RESISTANCE (Ohms)
(Including Barrier Resistance)
480 ohms at 24 VDC
(Analog EZ Modulevel)
960 ohms @ 36V

948-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
J
PG 1: ADDED: NOTE 8, RMVD:
EXPLOSION PROOF&DUST
I
GN ITION PROOFFROM HAZARD-
OUS LOCATION,CHGD: GWAS6;
PG 2CHGD TO PG3, ADDED NEW
PG 2;PG3ADDED:SMART ESII
MOD ULEVEL&ES9TOHAZARDO US
LOCATION S&RMVD GSH, GSK,
GSQ, GST, GS4, RSQ, RST, RSZ;
ADDED:ILLUSTRATION &NOTE9,
CHGD NON HAZARDOUS LOCATION:
Vt&ItWERE V+&IeRESP.
SC6-99 3057-986
ENTITY
Vmax =28.6V
Imax =140mA
Ci=5nF
Li=434µH
Pmax =1W
ALTERNATIVELY-FM ONLY
Vmax =22V
Imax =165mA
Ci=5nF
L
i=43µH
Pmax =1W
I
NTRINSICALLYSAFE CONNE CTION SCLASSI,II,III DIV 1 GROUPSB,C,D,E,F&G
NON -INCENDIVE CLASSIDIV 2GROUPSA,B,C,D
CLASSII DIV 2GRO UPSE,F,G
(F&G ONLYFOR FM)
ALTERNATIVELY-FM ONLY
Voc≤22V Ca≥5nF
I
sc≤140mA La≥434µH
T4Ta=71°C
M
RC01-02
3
051-020
ADDED:
"ALTERNATIVELY-FM ONLY"
REMOVED: MODELSKSQ,KST,
KSZ,KZQANDKZT
M
MM
P/N 99-5031-000
L
PAGE 1-CHG'D:LIMITING
VALUES5nFWAS5pF,434µH
WAS434nF.BOTHPAGES-
CHG'D: ENTITY434µHWAS
434nH.PAGE2-ADDED TO
NOTE 7SECOND CSA WARNING .
JM JARAS
1-18-00
3051-004
P.S.SNIDER
99-5031
99-5031
NONE
3
/8/99D.PASHOLK
4/28/99J.M.JARAS
3
057-515
5
-14-99
SYSTEM DRAWING
ESII/EZMODULEVEL
S
MART ESII/EZMODULEVEL
HAZARDO US LOCATION SAFE LOCATION
8.REMOTE MOUNT LVDT&ELECTRONICSHOUSING
MUSTBE INSTALLED EXPLOSION PROOF.
9.NRTLLISTED DUST TIGHT SEALS MUSTBE
USED WHEN INSTALLED IN CLASSII&III
ENVIRONMENT S.
LIMITING VALUES
Voc≤28.6V Ca≥5nF
I
sc≤140mA La≥434µH
NOTE:
1.ANYCHANGESTO THIS DRAWING MUST BESUBMITTED TOFACTORYMUTUAL&CSA
PERSPISE0-006.
2.MANUFACTURE'SINSTRUCTION SSUPPLIED WITHTHE PROTECTIVE BARRIER,CEC(CSA)
OR THE NECMUSTBE FOLLOWED WHEN INSTALLING THIS EQUIPMENT.
3.FOR INSTALLATION GUIDAN CE,SEE ANSI/ISA RP12.6.
4.FOR CSA: EXIA INTRINSICALLYSAFE/SECURITEINTRINSEQUE.
5.FOR CSA:WARNING -EXPLOSION HAZARD-SUBSTITUTION OFCOMPONENT SMAY
IMPA IR SUITABILITYFOR HAZARDO US LOCATION S.
FOR CSA:WARNING -EXPLOSION HAZARD-DO NOT DISCONNE CT EQUIPMENT
UNLESS POWERHASBEENSWITCHED OFF OR THE AREAISKNO WN TOBE
NON-HAZARDO US.
6.FOR SUPPLYCONNECTION SUSE WIRESUITABLE FOR THE OPERATING
TEMPERATURE.FOR 71°CAMBIENT USE WIRE WITHA MINIMUM
TEMPERATURE RATING OF75°C.
7.THE TRANSMITTER MAYALSO BEINSTALLED IN CLASSI, DIV.2,
GROUPSA,B,C,&D;CLASSII, DIV.2, GROUPSE,F,&G(F&G ONLY
FOR FMR C);CLASSIII, DIV.2,LOCATION SAND DOESNOT REQUIRE
CONNE CTION TO A PROTECTIVEBARRIER WHEN INSTALLED PERCEC
(FOR CSA)OR NEC(FOR FMR C)ANDWHEN CONNECTED TO A POWER
SOURCE NOT EXCEEDING 30VDC.
T
HE VOLTAGE(Vmax)ANDCURRENT(Imax)
WHICHTHE TRANSMITTERCAN RECEIVE
MUSTBE EQUALTO OR GREATER THAN
THE MAXIMUM OPENCIRCUIT VOLTAGE
(
Voc OR Vt)AND THE MAXIMUM SHORT CIRCUIT
CURRENT(IscORIt)WHICHCAN BE DELIVERED
BYTHESOURCE DEVICE.IN ADDITION, THE
MAXIMUM CAPACITANCE(Ci)ANDIND UCTANCE
(
Li)OFTHE LOAD AND THE CAPACITANCE
AND IND UCTANCE OFTHE INTERCONNECTING
WIRING, MUSTBE EQUALTO ORLESS THAN
T
HE CAPACITANCE(Ca)OR THEIND UCTANCE
(
La)WHICHCAN BE DRIVEN BYTHE SOURCE
DEVICE.
MODE LS APPROVED
xExx-xxxx-RSQ, RST, RSZFOR SMART ESII
RZQ, RZT,FOR EZMODULEVEL
5057-008
DPP 3/99
H
12
PG.1: REDRAWN ONCAD.
ADDED: PG.2, P/N -002.
WITHOUT METER
WITHMETER
(WINDO WED)
TRANSMITTER
INSTRUMENT
S
EALED NIPPLE
(EPOXYFILLED)
COND UIT JUNCTION
FITTING
INTRINSICALLY
S
AFE
BARRIER
K
PG.1 &2: ADDED ESIITO
TITLE, T4Ta=71°C&EZTO
TO SMART ESIIMODULEVEL
CALLOUT.ENTITYCIWAS5pF.
REVISED MODELS APPROVED.
DRWG.WAS3PAGES.
JS11-99 3057-994
AGENCYLISTED
DRAWING
QA APPROVAL
DRAWING REQUIRE
ALL REVISION STO THIS
R
5300BELMONT ROAD, DOWNERSGROVE,
ILLINO IS60515/AREA630/969-4000
OR BETTER
EDGES, MAX.ALLOWED .032(0,81)
I
NSIDE RADII.032(0,81)R.
ALLFINISHES125
"
mm "DIMEN SION SIN MILLIMETERS
TOLERANCES:
2
PL.IN.DEC.±0.015IN.(0,4mm )
3
PL.IN.DEC.±0.005IN.(0,2mm )
ANGUL
AR
±
2
°
REMOVE ALLBURRSANDSHARP
PLAIN DIMEN SION SIN INCHES;()OR
UNLESS OTHERWISE SPECIFIED:
T
HIS DRAWING IS THE EXCLUSIVE PROPERTY
OFMAGNETROLINTERNATIONAL.NOUSE
WHATSOEVER OFTHEINFORMATION CON -
TAINED HEREON, NOR REPRODUCTION IN
WHOLE ORIN PART MAYBE MADEWITHOUT
THE EXPRESSWRITTEN PERMISSION OF:
MAGNETRO LINTERNATIONA L
REVISION S
DESCRIPTION BY&DATE CHANGE NO.
MATERIAL
RAWMATLPART NO.
HEAT TREAT
FINISH
TITLE
DRAWN
CHKD
APPD
PROJNO.
DATE
DATE
DATE
SKETCHNO.
SCALE PAGE OF
DWG
SIZE
C
SYM
THIRD ANGLE
PROJECTION
IN
(mm )
DWG
SIZE
C
P/N 99-5031-000
RC 1-023051-020
M
ENTITY
Vmax =28.6V
Imax =140mA
Ci=5nF
Li=434µH
Pmax =1W
ALTERNATIVELY-FMONLY
Vmax =22V
Imax =165mA
Ci=5nF
Li=434µH
Pmax =1W
M
1)Barriersmustbe CSACertifiedandFMapproved.
2)Manufacturersinstallationinstructionssupplied withtheprotectivebarrierand
theCEC(forCSA)ortheNECandANSI/ISARP 12.6(ForFMRC)mustbefollowed
wh eninstallingtheequipment.
3)Controlequipmentconnectedtoprotectivebarriersmustnotuseorgeneratemore
than250VdcorVrms.
4)NRTLlisteddusttightsealsmustbe usedwh endeviceisinstalled in
ClassII&IIIenvironments.
5)NorevisionstothisdrawingwithoutFMRCandCSAapproval.
6)ForCSA:ExiaIntrinsicallySafe /SecuriteIntrinseque
7)ForCSA:WarningExplosionHazard Substitutionofcomponentsma yimpair
suitabilityforhazardousLocations.
ForCSA:WarningExplosionHazard Donotdisconnectequipmentunless
powerhasbeenswitchedoffortheareaisknowntobe non-hazardous.
8)Forsupplyconnections,usewiresuitableforoperatingtemperature.
For71°Cam bient,usewirewithaminimumtemperatureratingof75°C.
9)Thetransmitterma yalsobe installed inClassIDiv2groupsA,B,C,D,
ClassII,Div2GroupsE,F&G(F&GonlyforFMRC);ClassIII,Div2
locationsanddoesnotrequireconnectiontoaprotectivebarrierwh en
installed perCEC(forCSA)or NEC(forFMRC)andwh enconnectedtoa
powersourcenotexceeding30VDC.
L
imitingValues
Voc<=28.6V Ca>=5nf+Ccable
Isc<=140 mALa>=434uH+Lcable
ALTERNATIVLY-FMONLY
Voc<=22VCa>=5nf+Ccable
Isc<=165 mALa>=434uH+Lcable
M
P.S.SNIDER
99-5031
99-5031
NONE
3/8/99D.PASHOLK
4/28/99J.M.JARAS
3057-515
5-14-99
SYSTEMDRAWING
ESII/EZMODULEVEL
HAZARDOUSLOCATIONS
IntrinsicallySafeforCLI,Div.1GroupsABCD
CLII,Div.1GroupsEFG
CLIII NEMA4X(FM)TYPE4X(CSA)
T4Ta=71°CT
hevoltage(Vmax)andcurrent(Imax)whichthetransmittercanreceive
mustbeequaltoorgreaterthanthemaximumopencircuitvoltage
NOTES:
NON HAZARDOUSLOCATIONS
(VocorVt)andthemaximumshortcircuitcurrent(IscorIt)wh ich
canbedeliveredbythesourcedevice.Inaddition,themaximum
c
apacitance(Ci)andinductance(Li)oftheloadandthecapacitance
andinductanceoftheinterconnectingwiring,mustbe equaltoor
lessthanthecapacitance(Ca)ortheinductance(La)wh ichcanbe
drivenbythesourcedevice.
S
EESHEET 1FORREV.
22
WITHOUTMETER
S
EALEDNIPPLE
(EPOXYFILLED)
CONDUITJUNCTION
FITTING
TRANSMITTER
INSTRUMENT
WITHMETER
(WINDOWED)
I
NTRINSICALLY
SAFE
BARRIER
S
MARTESII/EZMODULEVEL
LimitingValues
xMODELExx-xxxx-ESD,ESI,ESJ,ESH,ESK,ES8ORES9 FORSMARTESII
EZD,EZI,EZH,OREZKFOREZMODULEVEL
AGENCYLISTED
DRAWING
QAAPPROVAL
DRAWINGREQUIRE
ALLREVISIONSTOTHIS
R
5300BELMONTROAD,DOWNERSGROVE,
ILLINOIS60515 /AREA630 / 969-4000
ORBETTER
EDGES,MAX.ALLOWED.032(0,81)
INSIDERADII.032(0,81)R.
ALLFINISHES125
"mm "DIMENSIONSIN MILLIMETERS
TOLERANCES:
2PL.IN.DEC.±0.015IN.(0,4mm )
3 PL.IN.DEC.±0.005IN.(0,2mm )
ANGUL
AR
±
2°
REMOVEALLBURRSANDSHARP
PLAIN DIMENSIONSIN INCHES;()OR
UNLESSOTHERWISESPECIFIED:
THISDRAWINGISTHEEXCLUSIVEPROPERTY
OFMAGNETROLINTERNATIONAL.NOUSE
WHATSOEVEROFTHEINFORMATION CON-
T
AINEDHEREON,NORREPRODUCTION IN
WHOLEORIN PARTMAYBEMADEWITHOUT
T
HEEXPRESSWRITTEN PERMISSION OF:
MAGNETROLINTERNATIONAL
REVISIONS
DESCRIPTION BY&DATE CHANGENO.
MATERIAL
RAWMATLPARTNO.
HEATTREAT
FINISH
TITLE
DRAWN
CHKD
APPD
PROJNO.
DATE
DATE
DATE
SKETCHNO.
SCALEPAGEOF
DWG
SIZE
C
SYM
THIRDANGLE
PROJECTION
IN
(mm )
DWG
SIZE
C
Figure 11 Intrinsically Safe Wiring
Figure 12 Intrinsically Safe Connections/Non-incendive wiring

2.4 Calibrating the Analog EZ Modulevel
The Analog EZ Modulevel must be calibrated for each
unique application. It may be calibrated in service or on
a bench calibration stand. Bench calibration provides a
convenient way to set up the transmitter before going to
the tank site to complete the installation. Bench calibra-
tion, however, does not compensate for elevated process
temperatures.
For convenience during the calibration of a blind transmit-
ter, a C milliameter may be connected to terminals (M+)
and (M-) in the junction box, see Figure 5 on page 6.
2.4.1 Direct Acting Field Calibration
1. Bring process up to operating temperature.
2. Unscrew and remove protective covers from zero and span
controls. See Figure 13.
3. Rotate the span control counterclockwise fully, approxi-
mately 20 turns.
4. Rotate the zero control counterclockwise fully, approxi-
mately 20 turns.
5. Establish liquid level at the desired 4 mA (0%) level on the
displacer.
6. Adjust the zero control until the output signal is 4.00 mA
(0% on transmitter with analog meter).
7. Replace cover on zero control.
8. Establish liquid level at the desired 20 mA (100%) level on
the displacer.
9. Adjust the span control until the output signal is 20.00 mA
(100% on transmitter with analog meter).
In the case that 20 mA (100%) level cannot be established:
10. After setting the zero point, establish liquid level as close to
the 20 mA level as possible.
11. Adjust the span control until the output signal corresponds
with the % of actual level (e.g. 80 % level should equal (20
mA – 4 mA) x 80% + 4 mA = 16.8 mA).
12. Replace cover on span control.
Desired
Level Range
(Direct Acting)
Desired
Level Range
(Reverse Acting)
Zero and Span Controls
Replace Covers 
After Calibration
100% Level,
20 mA Output
Zero Level,
4 mA Output
Bottom of Displacer
100% Level,
4 mA Output
100% Level,
20 mA Output
Figure 13
Analog EZ Modulevel
Field Calibration
10
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

2.4.2 Reverse Acting Field Calibration
Analog EZ Modulevels are factory set for direct action
(rising level increases output signal). The following
adjustment is required for reverse action.
1. Remove power from unit.
2. Remove transmitter housing cover.
3. Locate the irect/Reverse switch on the PC board.
See Figure 14.
4. Move the irect/Reverse switch to “REV.”
5. Replace and tighten the transmitter housing cover until
the o-ring is compressed.
6. Bring process up to operating temperature.
7. Unscrew and remove protective covers from zero and
span controls. See Figure 13 on page 10.
8. Rotate the span control counterclockwise fully,
approximately 20 turns.
9. Rotate the zero control counterclockwise fully,
approximately 20 turns.
10. Establish liquid level at the desired 4 mA (100%) level on
the displacer.
11. Adjust the zero control to until the output signal is
4.00 mA (0% on transmitter with analog meter).
12. Replace cover on zero control.
13. Establish liquid level at the desired 20 mA (0%) level on
the displacer.
14. Adjust the span control until the output signal is 20.00 mA
(100% on transmitter with analog meter).
2.4.3 Bench Calibration
The Analog EZ Modulevel can be bench calibrated using
the calibration stand (P/N 31-6107-001) (except units that
have been calibrated for interface service. Bench callibra-
tion cannot be performed on interface models). The fixture
includes an open-topped enclosing tube upon which the
transmitter head is mounted and an adjustment rod which
simulates level movement of liquids with various S.G.s.
To remove transmitter head from control:
1. isconnect field wiring at the junction box.
2. Loosen the housing base lock screws. See Figure 3 on page 4.
3. Remove transmitter housing cover.
4. Remove c-ring from enclosing tube using snap ring pliers.
5. Slide transmitter on housing base upward until clear of the
enclosing tube.
11 48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
P4 P3
— TB1 +
¤
E Z MODULEVEL¤
5300 BELMONT ROAD,
DOWNERS GROVE, IL 60515,
USA.
HEIKENSSTRAAT 6,
B 9240 ZELE,
BELGIUM.
www.magnetrol.com
REFER TO MODULEVEL MANUAL,
BULLETIN 48-615, FOR
INSTALLATION AND OPERATION
INSTRUCTIONS.
R13
J1
TP2
TP1
S1
AGC
ASSEMBLY PART NO.
30-2163
05-9118-001
R8
J2
4 mA SET
(—) (+)
REV.
DIR.
Figure 14
Analog EZ Transmitter
PC Board
Direct/Reverse Switch

To install transmitter head on calibration stand, carefully
slide the white teflon spacer and LV T assembly down
over the open topped enclosing tube. Be certain that both
the LV T assembly and the housing base are fully seated
on the fixture. See Figure 15 on page 13.
To bench calibrate the Analog EZ transmitter:
1. Connect appropriate supply voltage and meter, if
necessary, to terminals in junction box.
See Figure 5, 6, 7 & 8 on pages 6-7.
2. Unscrew and remove protective covers from zero and span
controls. See Figure 13 on page 10.
3. Rotate the span control counterclockwise fully, approxi-
mately 20 turns.
4. Rotate the zero control counterclockwise fully, approxi-
mately 20 turns.
5. Push the adjustment rod completely down into the enclos-
ing tube to simulate low level. See Figure 15 on page 13.
6. Adjust the zero control until the output signal is 4.00 mA
(0% on transmitter with analog meter).
7. Replace cover on zero control.
8. Lift the adjustment rod until the top of the enclosing tube
is aligned with the marking on the rod that corresponds to
the S.G. of your process liquid.
9. Adjust the span control until the output signal is 20.00 mA
(100% on transmitter with analog meter).
10. Replace cover on span control.
11. isconnect power and meter (if used) and remount
transmitter head onto control by reversing the removal
procedure.
Note: Bench calibration does not compensate for elevated
process temperatures.
Note: To bench calibrate for reverse action, after moving the
Direct/Reverse Switch to “Rev” position, adjust the zero
control with the adjustment rod positioned at the S.G.
marking on the rod. Adjust the span control with the
adjustment rod down until firmly seated on calibration tube
(see “Bench alibration” procedure above).
12
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

Adjustment Rod
Calibration
Tube
LVDT
“O” Rings Enlarged Detail
of
Adjustment Rod
Enclosing Tube
P.C. Board
C-ring Located
Here on Process
Level Sensors
White Teflon Spacer
Must Be Installed
Base and Junction Box
Stand
S
P.2
.4
.6
.8
1.0
.2
.4
.6
.8
1.0
LVDT Core

13 48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
%
Figure 16
Digital Meter Removal
Note: For units with meter, pull meter
out to access wiring terminals
Figure 15
Bench Calibration Stand
(part number 31-6107-001)

3.0 Digital ES II Modulevel
iring and Calibration.
Caution: The Digital ES II Modulevel Transmitter operates at
voltages of 12-36 VD . Incorrect voltages will
damage the transmitter.
All wiring between the power supply and the Modulevel
transmitter should be made using 18-22 AWG shielded
twisted pair instrument cable. All wiring connections to
the transmitter are made in the attached junction box.
NO WIRING CONNECTIONS ARE REQUIRE
INSI E THE TRANSMITTER HOUSING ON
INTEGRAL UNITS. Instructions for wiring the
Modulevel transmitter depend on type of mounting, inte-
gral or remote, and the area classification required, intrin-
sically safe, explosion proof or non-incendive.
WARNING! Turn off all power before making any electrical
connection.
3.1 Integral Transmitter iring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the name-
plate matches the power supply. Do NOT attempt to
operate this unit at voltages other than as identified as
it will damage the unit.
1. Remove the cover to the junction box of the transmitter.
2. If unit is supplied with meter, access terminal board by
pulling meter straight out until it unplugs. See Figure 16.
If unit has no meter, terminal board is already accessible.
3. Install an approved seal within 18" of the junction box
conduit.
4. Pull the supply wires and connect to the terminals as indi-
cated in the wiring. See Figure 18.
5. Replace meter, if supplied, by pushing banana plugs firmly
into receptacles.
6. Replace junction box cover. Ensure that the cover is tight-
ened down sufficiently to compress o-ring seal.
Note: When operated from a 24 VD source, the maximum
allowable loop resistance is 545 ohms for Digital ES II
Modulevels. See Figure 17.
When using HART, a loop resistance of 250 to 450 ohms
must be placed in series with the igital ES II Modulevel.
Caution: Instrument and conduit junction box covers must
in place and tightly sealed at all times during
operation.
TB2
D1
P1
P2
C6 L5
C5
C3
TB1
+
–
+
–
– +
AW3175
L3
D2
JP1
L6
L4
L2
C1
C4
+
–
Figure 18
Digital ES II Terminal Board
DC+
DC-
}
Signal Power Supply
min 12 VD
max 36 VD
14
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)
Loop Resistance vs. Power Supply Voltage
12 14 16 18 20 22 24 26 28 30 32 34 36 38
0
100
200
300
400
500
600
700
800
900
1100
1000
MAXIMUM LOOP RESISTANCE (Ohms)
(Including Barrier Resistance)
545 ohms at 24 VDC
(Digital ES II)
1090 ohms @ 36V

Figure 17
Digital ES II
Maximum Loop Resistance
meter
hook-ups

3.2 Remote Transmitter iring
Note: Before connecting the power supply to the transmitter,
be sure that the voltage identification on the name-
plate matches the power supply. Do NOT attempt to
operate this unit at voltages other than as identified as
it will damage the unit.
1. Remove the cover of the remote transmitter and of the
LV T housing.
2. Connect one end of the six conductor cable (P/N
037-3218-xxx or 037-3220-xxx) to the LV T terminal
block and the other end to the terminal block within the
remote transmitter housing. Be sure to match the six dis-
crete numbered wires with the numbers on each terminal
block. See Figure 19.
3. Wire the power supply to the terminal board in the junc-
tion box and seal the conduit per the instructions in
Section 3.1.
Note: When operated from a 24 VD source, the maximum
allowable loop resistance is 545 ohms for Digital ES II
Modulevels. When using HART, a loop resistance of
250 to 450 ohms must be placed in series with the
Digital ES II Modulevel. See Figure 17 on page 14.
Caution: Instrument and conduit junction box covers must
be in place and tightly sealed at all times during
operation.
TB2
D1
P1
P2
C6 L5
C5
C3
TB1
+
–
+
–
– +
AW3175
L3
D2
JP1
L6
L4
L2
C1
C4
+
–
ENTER
UP
DOWN
ERROR
SPAN
ZERO
(–)
P2

(+)
P1

®
– TB1 +

E S MODULEVEL ®
5300 BELMONT ROAD,
DOWNERS GROVE, IL 60515,
USA.

HEIKENSSTRAAT 6,
B 9240 ZELE,
BELGIUM.

www.magnetrol.com

REFER TO MODULEVEL MANUAL,
BULLETIN 48-615, FOR
INSTALLATION AND OPERATION
INSTRUCTIONS.
TP1
TP2
J1
05-9123-001
ASSEMBLY PART NO.
Red
Blue
Black Yellow
Brown
Green
Blk
Blu
Red
Yel
Brn
Grn
1
23
56 4
1
2
3
5
6
4
Integral LVDT Housing
Terminal Block
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
Remote Transmitter Housing
Terminal Block
white/yellow
brown
white/green
white/black
blue
white/red
white
black
green
black
red
black

Figure 19
Digital ES II Remote
Mounted Transmitter Wiring
unction Box
Terminal Board
Remote Transmitter
Housing PC Board
15 48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

3.3 Hazardous Location iring
See Figure 11 on page 9 for proper installation of igital
ES II for intrinsically safe locations. Proper installation of
igital ES II with intrinsically safe connections and non-
incendive wiring is illustrated in Figure 12 on page 9.
3.4 Digital ES II Push-Button Calibration
The igital ES II Modulevel must be calibrated for each
unique application. It may be calibrated using the push-
buttons on the PC board or using a HART communicator.
The HART hand-held communicator allows advanced
calibration.
The igital ES II Modulevel may be calibrated in service or
on a bench calibration stand (P/N 31-6107-001) (except
units that have been calibrated for interface service. Bench
callibration cannot be performed on interface models).
Bench calibration provides a convenient way to set up the
transmitter before going to the tank site to complete the
installation. Bench calibration, however, does not compen-
sate for elevated process temperatures and must be fine
tuned in the field.
3.4.1 Push-button field calibration
1. Bring process up to operating temperature.
2. Establish liquid level at desired 4 mA (0%) level on dis-
placer. If 4 mA level is at the bottom of the displacer,
4 mA point may be set with displacer hanging free in vapor.
3. With unit power on, remove cover.
4. Press the ENTER key to start calibration. The ZERO LE
will light. Loop will go to 22 mA. See Figure 20 on page 16.
5. Press the OWN key to lock in the 4 mA value. The
ZERO LE will flash and remain on. Loop will stay at
22 mA.
6. Press ENTER to confirm the setting. The ZERO LE will
go off. Loop will go to 4 mA.
7. Establish liquid at the 20 mA (100%) level on the displacer.
8. Press ENTER to start calibration. The ZERO LE will
light. Loop will go to 22 mA.
9. Press UP to lock in the 20 mA value. The ZERO LE will
go off. The SPAN LE will be on. Loop will go to 20 mA.
10. Press ENTER to confirm the setting. The SPAN LE will
go off. Loop will stay at 20 mA.
Zero level, 4 mA output,
bottom of displacer
100% level,
20 mA output
Desired
level range 
(direct acting)
...
ENT
ENT
Error LED
Zero LED
Span LED
Pushbuttons
Red LED
Figure 20
Digital ES II Push-button Calibration
16
48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)

In the case that 20 mA (100%) level cannot be established:
11. After setting the zero point, establish the liquid level as
close to the 20 mA level as possible (must be more than
50% of the total span).
12. Press ENTER to start 20 mA calibration. The ZERO LE
will light. Loop will go to 22 mA.
13. Press UP to lock in 20mA value. The ZERO LE will go
off. The SPAN LE will be on. Loop will go to 20 mA.
14. Toggle UP and OWN until the loop signal corresponds
with the % of actual level (e.g. 80 % level should equal
(20 mA – 4 mA) x 80% + 4 mA = 16.8 mA).
15. Press ENTER to confirm the setting. The SPAN LE will
go off. Loop will stay at value chosen in step 14 above.
16. Replace cover.
Note: When calibrating for reverse action (4 mA at high level, 20
mA at low level) step 2 will be establishing high level at the
4 mA level and step 7 will be bringing the level down to the
20 mA level.
3.4.2 Push-button Bench Calibration
The igital ES II Modulevel can be bench calibrated using
the calibration stand (P/N 31-6107-001) (except units that
have been calibrated for interface service. Bench callibra-
tion cannot be performed on interface models). The fixture
includes an open topped enclosing tube upon which the
transmitter head is mounted and an adjustment rod which
simulates level movement of liquids with various S.G.s.
Bench calibration does not compensate for elevated process
temperatures and must be fine tuned in the field.
To remove transmitter head from control:
1. isconnect field wiring at the junction box.
2. Loosen the housing base lock screws. See Figure 3 on page 4.
3. Remove transmitter housing cover.
4. Remove c-ring from enclosing tube using snap ring pliers.
5. Slide transmitter on housing base upward until clear of the
enclosing tube.
To install transmitter head on calibration stand, carefully
slide the white teflon spacer and LV T assembly down
over the open topped enclosing tube. Be certain that both
the LV T assembly and the housing base are fully seated
on the fixture. See Figure 15 on page 13.
17 48-618 ES/EZ Modulevel Displacer Level Transmitter (Top Hat Assembly Design)