Rosemount 1054B-DC Dual Cell Conductivity/Resistivity Microprocessor Manuals & Guides

Model 1054B DC

Dual Cell Conductivity/Resistivity Microprocessor Analyzer

Instruction Manual

PN 51-1054BDC/rev.B
April 2003

WARNING

ELECTRICAL

SHOCK HAZARD

Making cable connections to and servicing this instru­ment require access to shock hazard level voltages
which can cause death or serious injury.

Relay contacts made to separate power sources
must be disconnected before servicing.

Electrical installation must be in accordance with
the National Electrical Code (ANSI/NFPA-70)
and/or any other applicable national or local
codes.

Unused cable conduit entries must be securely
sealed by non-flammable closures to provide
enclosure integrity in compliance with personal
safety and environmental protection requirements.

For safety and proper performance this instru­ment must be connected to a properly grounded
three-wire power source.

Proper relay use and configuration is the respon­sibility of the user.

Do not operate this instrument without front cover
secured. Refer installation, operation and servicing
to qualified personnel.

Be sure to disconnect all hazardous voltage before
opening the enclosure.

The unused conduit openings need to be sealed
with NEMA 4X or IP65 conduit plugs to maintain
the ingress protection rating (IP65).

No external connection to the instrument of more
than 43V peak allowed with the exception of power
and relay terminals. Any violation will impair the
safety protection provided.

ESSENTIAL INSTRUCTIONS

READ THIS P

AGE BEFORE PRO-

CEEDING!

Rosemount Analytical designs, manufactures, and tests its
products to meet many national and international stan­dards. Because these instruments are sophisticated tech­nical products, you must properly install, use, and maintain
them to ensure they continue to operate within their normal
specifications. The following instructions must be adhered
to and integrated into your safety program when installing,
using, and maintaining Rosemount Analytical products.
Failure to follow the proper instructions may cause any one
of the following situations to occur: Loss of life; personal
injury; property damage; damage to this instrument; and
warranty invalidation.

• Read all instructions prior to installing, operating, and
servicing the product. If this Instruction Manual is not the
correct manual, telephone [phone] and the
requested manual will be provided. Save this Instruction
Manual for future reference.

• If you do not understand any of the instructions, contact
your Rosemount representative for clarification.

• Follow all warnings, cautions, and instructions marked
on and supplied with the product.

• Inform and educate your personnel in the proper instal­lation, operation, and maintenance of the product.

• Install your equipment as specified in the Installation
Instructions of the appropriate Instruction Manual and
per applicable local and national codes. Connect all
products to the proper electrical and pressure sources.

• To ensure proper performance, use qualified personnel
to install, operate, update, program, and maintain the
product.

• When replacement parts are required, ensure that qual­ified people use replacement parts specified by
Rosemount. Unauthorized parts and procedures can
affect the product’s performance and place the safe
operation of your process at risk. Look alike substitu­tions may result in fire, electrical hazards, or improper
operation.

• Ensure that all equipment doors are closed and protec­tive covers are in place, except when maintenance is
being performed by qualified persons, to prevent electri­cal shock and personal injury.

WARNING

This product is not intended for use in the light industrial,
residential or commercial environment, per the instrument’s
certification to EN50081-2.

Emerson Process Management
Rosemount Analytical Inc.

2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: [phone]
Fax: [phone]

http://www.RAuniloc.com

© Rosemount Analytical Inc. 2001

About This Document

This manual contains instructions for installation and operation of the Model 1054BDC
Dual Cell Conductivity/Resistivity Microprocessor Analyzer.

The following list provides notes concerning all revisions of this document.

Rev

. Level

Date Notes

A 5/96-1/00 This is the initial release of the product manual. The manual

has been reformatted to reflect the Emerson documentation
style and updated to reflect any changes in the product offering.

B 4/03 Update CE information.

MODEL 1054B DC TABLE OF CONTENTS

MODEL 1054B DC CONDUCTIVITY

MICROPROCESSOR ANALYZER

TABLE OF CONTENTS

Section Title Page

1.0 DESCRIPTION AND SPECIFICATIONS........................................................... 1

1.1 Features and Applications................................................................................. 1

1.2 Physical Specifications - General...................................................................... 2

1.3 Analyzer Specifications...................................................................................... 3

1.4 Ordering Information.......................................................................................... 4

2.0 INSTALLATION.................................................................................................. 5

2.1 General.............................................................................................................. 5

2.2 Unpacking and Inspection................................................................................. 5

2.3 Mechanical Installations .................................................................................... 5

2.4 Electrical Wiring................................................................................................. 5

2.5 Sensor Installation............................................................................................. 6

3.0 DESCRIPTION OF CONTROLS....................................................................... 12

3.1 Keyboard Functions........................................................................................... 12

4.0 CONFIGURATION............................................................................................. 17

4.1 General.............................................................................................................. 17

4.2 Process Variable ............................................................................................... 17

4.3 Alarm 1 and 2 ................................................................................................... 19

4.4 Temperature Configuration................................................................................ 21

4.5 Current Output .................................................................................................. 21

4.6 Defaults ............................................................................................................. 22

4.7 Alarm Setpoint................................................................................................... 22

4.8 Output Scale Expansion.................................................................................... 24

4.9 Simulate Output................................................................................................. 25

4.10 Display Cycle..................................................................................................... 26

5.0 START-UPAND CALIBRATION........................................................................ 27

5.1 Start-Up and Calibration.................................................................................... 27

6.0 KEYBOARD SECURITY ................................................................................... 29

6.1 Keyboard Security............................................................................................. 29

7.0 THEORY OF OPERATION................................................................................ 30

7.1 Theory of Operation........................................................................................... 30

8.0 DIAGNOSTICS AND TROUBLESHOOTING .................................................... 31

8.1 Diagnostics........................................................................................................ 31

8.2 Troubleshooting................................................................................................. 32

8.3 Instrument Maintenance.................................................................................... 35

9.0 RETURN OF MATERIAL................................................................................... 36

9.1 General.............................................................................................................. 36

9.2 Warranty Repair................................................................................................. 36

9.3 Non Warranty Repair......................................................................................... 36

i

MODEL 1054B DC TABLE OF CONTENTS

TABLE OF CONTENTS CONT'D.

LIST OF FIGURES

Figure No. Title Page

2-1 Panel Mounting Cutout...................................................................................... 7

2-2 Panel Mounting Tab Installation......................................................................... 8

2-3 Pipe Mounting Installation ................................................................................. 9

2-4 Electrical Wiring................................................................................................. 10

2-5 Sensor Wiring.................................................................................................... 11

3-1 Function Select on Keypad................................................................................ 12

3-2 Accessing Editing Function............................................................................... 12

3-3 Accessing Configuration Menus........................................................................ 12

3-4 LCD Display....................................................................................................... 13

3-5 Set Menu Items................................................................................................. 16

4-1 Process Variable Configuration......................................................................... 19

4-2 Alarm 1 and Alarm 2 Configuration.................................................................... 19

4-3 Alarm 3 Configuration........................................................................................ 20

4-4 Temperature Configuration................................................................................ 21

4-5 Current Output Configuration............................................................................ 22

4-6 Default Configuration......................................................................................... 22

4-7 Alarm Setpoint................................................................................................... 23

4-8 Output Scale Expansion.................................................................................... 24

4-9 Simulate Current Output.................................................................................... 25

4-10 Display Cycle Configuration.............................................................................. 26

7-1 Resistance vs. Temperature.............................................................................. 30

8-1 Simulate Conductivity Input............................................................................... 35

LIST OF TABLES

Table No. Title Page

3-1 Key Description................................................................................................. 14

3-2 Information Mnemonics..................................................................................... 15

3-3 Set Function Mnemonics................................................................................... 15

4-1 Configuration Work Sheet ................................................................................. 18

4-2 Relay States for Various Conditions and Alarm/Default Configurations ............ 23

8-1 Fault Mnemonics............................................................................................... 31

8-2 RTD Resistance Values..................................................................................... 31

8-3 Troubleshooting Guide ...................................................................................... 34

ii

1

MODEL 1054B DC SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

1.1 FEATURES AND APPLICATIONS

The Model 1054B Microprocessor Analyzers, with the
appropriate sensors, are designed to continuously meas­ure and control pH, ORP, conductivity, resistivity, ratio,
percent concentration, dissolved oxygen, ozone or total
free chlorine in industrial and municipal processes.

The Model 1054B Dual Conductivity/Resistivity Analyzer
offers the flexibility of one model for measurement of two
cell inputs with two assignable outputs of conductivity,
resistivity and/or temperature. The analyzer is housed in
a NEMA 4X (IP65) weatherproof, corrosion-resistant,
flame retardant enclosure suitable for panel, pipe or wall
mounting. All functions are accessed through the front
panel membrane keyboard which features tactile feed­back. The display indicates the process variable values
in engineering units as well as temperature, alarm sta­tus, hold output and fault conditions.

The 1054B DC can transmit two independent, isolated
current outputs which are continuously expandable over
the measurement range. Output dampening of 0-255
seconds is user selectable.

The output and relay default settings are user selectable
for hold or fault mode operation. The hold output function
allows manual control during routine sensor maintenance.

Continuous self diagnostics alert the operator to faults
due to analyzer electronics, integral RTD failures, open
wiring and process variable range problems. In the event
of a fault condition or hold mode diagnosed by the ana­lyzer, the output will be set to a preset or last process
value and the relays will be set to their default settings.

Three alarms are a standard feature on the Model
1054B DC and are programmable for either high or low
operation. Alarm 2 may be programmed as a fault or
process variable alarm. Alarm 3 may be configured as
a temperature alarm only. All alarms feature independ­ent setpoints, adjustable hysteresis and time delay
action. The time delay is convenient when an alarm is
used for corrective action, such as shutting down a
demineralizer for regeneration. Time delay will ignore a
temporary breakthrough and prevent shutting down a
de-mineralizer unit prematurely.

Automatic temperature compensation is standard. The
process temperature is accurately measured by an inte­gral RTD in the sensor assembly, either a PT100 or
PT1000, which is automatically recognized by the ana­lyzer. The temperature(s) can be displayed in either °C
or °F. For greater accuracy, the temperature indication
may be standardized to the process temperature.

Calibration is easily accomplished by entering the cell
calibration constant (shown in the sensor tag) via the
analyzer keypad. Standardization can also be made
with the cell in process of known conductivity (resistivi­ty).

Analyzer settings may be protected against accidental
or unauthorized changes by a user selectable security
code.

• TWO CELL INPUTS OR TEMPERATURE ASSIGNABLE TO TWO ISOLATED
OUTPUTS.

• ACCURATE TEMPERATURE COMPENSATED AND RAW READINGS for high
purity water.

• UP TO 200 FEET (61m) SENSOR CABLE LENGTH (to 500 ft with extra shielding).

• THREE ASSIGNABLE RELAYS for process variable, temperature, or diagnostics.

• DISPLAY CAN AUTO CYCLE CELL 1 AND 2.

• NEMA 4X (IP65) ENCLOSURE.

• SECURITY CODE CAPABILITY.

MODEL 1054B DC SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

2

1.2 PHYSICAL SPECIFICATIONS -GENERAL
Enclosure: Black ABS, with interior conductive coating,

NEMA 4X, IP65, CSA Enclosure 4,
144 X 144 X 192 mm (5.7 X 5.7 X 7.6 in.)

Front Panel: Membrane keyboard with tactile feed-

back and user selectable security.

Digital Display: Code 01 - Black on grey LCD

Code 02 - Red LED
Character Height: 18mm (0.7 in.)

Electrical Classification:

FM Class I, Div. 2, Group A thru D

Relays: 28 Vdc relays - 5.0 amps resistive only

150 mA - Groups A& B; 400 mA - Group C;
540 mA - Group D; Ci = 0; Li = 0

CSA Class I, Div. 2, Group Athru D

Relays: 28 Vdc, 110 Vac & 230 Vac

5.0 Amps resistive only

Power: 100 - 127 VAC, 50/60 Hz ±6%, 4.0 W

200 - 253 VAC, 50/60 Hz ±6%, 4.0 W

Current Output: Isolated, 0-20 mA or 4-20 mA into

600 ohms maximum load at 115/230 Vac or
550 ohms maximum load at 100/200 Vac,
direct or reverse, Output Dampening: 0-255 sec

Operating Temperature: -10 to 65°C (14 to 149°F)
Storage Temperature: -30 to 85°C (-22 to 185°F)
EMI/RFI: EN61326
LVD: EN61010-1
Ambient Humidity: LED max 95% RH (LCD max

85% RH @ 50°C)

Alarms: Three. Independently field selectable: High

or Low. Alarm 3 is a temperature alarm only.
Alarm 2 configurable as a process or fault alarm.
Time Delay 0 to 254 seconds. Setpoints are contin­uously adjustable. Hysteresis is adjustable up to
25% full scale for low side/High Alarm and high
side/Low Alarm

Relay Contacts:Epoxy Sealed Form Acontacts, SPST ,

Normally open

Resistive Inductive
28 VDC 5.0 Amps 3.0 Amps
1 15 VAC 5.0 Amps 3.0 Amps
230 VAC 3.0 Amp s 1.5 Amps

Weight/Shipping Weight: 1.1 kg/1.6 kg (2.5 lb/3.5 lb)

The Model 1054B DC Dual Cell Analyzer measures conductivity and/or resistivity in conventional and ultrapure
water applications. This time tested technology has been applied successfully to demineralizer, reverse osmosis,
and distillation applications for decades.In this single analyzer, true temperature compensation for monitoring
water containing trace mineral contaminants is software selectable among the following:

1. Compensation for pure water contaminated with trace amounts of sodium chloride (standard).

2. Cation compensation for power plant applications containing ammonia or amines. Cation compensation may
also be used in semiconductor etch rinse applications where the rinse water contains traces of acids.

3. Uncompensated conductivity for applications such as required by United States Pharmacopeia 23 (USP 23)
specifications. The analyzer can output temperature separately for this application. NIST traceable calibration
certificates are available (consult factory).

The analyzer may be used with sensors having cable length of up to 200 ft (61 m). The cable length may be up to
500 ft (152m) with extra shielding (contact factory).

3

MODEL 1054B DC SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

1.3 ANALYZER SPECIFICATIONS @ 25°C

Measurement Range: 0-20,000 µS/cm or

0-50.00 megohms-cm

Output Scale: Any range within measurement
Measurement Accuracy:

Conductivity Range:

2.0 to 2,000 µS-cm ±0.5% of reading
and ±0.01 µS-cm

1.0 to 5,000 µS-cm ±1.0% of reading
and ±0.05 µS-cm

0.2 to 20,000 µS-cm ±2.0% of reading
and ±0.02 µS-cm

Resistivity: ±0.2 megohms-cm

temperature corrected resistivity to 25°C

T emperature Accuracy: ±.1°C (0-100°C),

±.2°C (0-100°C) for cable lengths over 50 ft.

Temperature Resolution: 0.1°C
Stability: ±0.25% of output range/month,

non-cumulative

Temperature Compensation: 0 to 100°C (32 to 212°F)

Neutral salt or Cation

Temperature Measurement: 0-135°C

Resistivity

(Ω-cm)

Conductivity

(µS/cm)

.05kΩ

20,000µS

2,000µS

500µS

200µS

100µS

20µS

10µS

2µS

1µS

.2µS

.1µS

.05µS

.02µS

.5kΩ

2kΩ

5kΩ

10kΩ

50kΩ

100kΩ

500kΩ

1MΩ

5MΩ

10MΩ

20MΩ

50MΩ

Operating Ranges for Various Cells Constants (not to scale)

1.0 cm

-1

10.0 cm

-1

0.01 cm

-1

0.1 cm

-1

CELLS FOR MODEL 1054B DC

Model Description Cell Const cm-

1

400-11/400VP-11 Screw-in 0.01
400-11-36/400VP-11-36 Screw in with 6 in. insertion 0.01
400-11-50 Screw in with 50 ft. cable 0.01
451 Dip cell 0.01
455, 404-11 Flow cell, stainless steel 0.01
PD-441 Flow cell, plastic 0.01
IB-441 Plastic ball valve cell 0.01
IB(SS)-441, 402-11 Ball valve cell, stainless steel 0.01

460, 403-11-20/403VP 1-1/2 in. Sanitary fitting

0.01

456, 403-11-21/403VP 2 in. Sanitary fitting

0.01
400-12 Screw in cell 0.1
452 Dip cell 0.1
461, 404-12 Flow cell 0.1
IB(SS)442, 402-12 Ball valve cell, stainless steel 0.1
400-13/400VP-13 Screw-in cell 1.0
453A Dip cell 1.0
402-13, IB(SS)-443A Ball valve cell, stainless steel 1.0
401-14 Screw-in cell 10.0
454 Dip cell 10.0
402-11, IB(SS)-444 Ball valve cell, stainless steel 10.0

OPERATING RANGES

Cell Constants (cm-1) Conductivity Range Resistivity Range

2

0.01 .02µS/cm to 20µS/cm .05M to 50M

0.1 0.2µS/cm to 200µS/cm

1

5 k to 5M

1

1.0 2µS/cm to 2000µS/cm

1

.5 k to 500k

1

10.0 20µS/cm to 20,000µS/cm1.05 k to 50k

1

NOTE:

1.The notation k represents k-ohms. The notation M represents megohms.
1000Ω = 1kΩ. 1000 kΩ = 1 MΩ.

2. Ranges are given in absolute (non-temperature compensated)
conductivity and resistivity.

4

MODEL 1054B DC SECTION 1.0

DESCRIPTION AND SPECIFICATIONS

1054B DC REPLACEMENT PARTS AND ACCESSORIES

PN ACCESSORIES

2001492 Tag, Stainless Steel, Specify Marking
23053-00 Mounting Bracket, 2-inch Pipe

PN REPLACEMENT PARTS

22966-00 PCB, LCD, Digital Display
23025-01 Panel Mounting Kit
23695-20 Keyboard Overlay, LCD Version
23695-21 Keyboard Overlay, LED Version
23744-00 PCB, Motherboard
23705-01 PCB, CPU, Dual Cell
23739-00 PCB, Power Supply
32937-00 Gasket Rear Cover
32938-00 Gasket Front Cover
33469-00 Enclosure Body
33470-00 Enclosure, Rear Cover
9100157 Fuse, .10A, 3AB, 250V, Slo-Blow
9100160 Fuse, .250A, 125V
9100189 Fuse, .755A, 125V

1.4 ORDERING INFORMATION

The Model 1054B Dual Cell Microprocessor Analyzer is housed in a corrosion resistant, weatherproof enclo-
sure and operates on either 115 or 230 VAC, 50/60 Hz power. Standard features include two independent con­ductivity or resistivity inputs, two isolated current outputs, three alarms, and automatic temperature compensation.

MODEL

1054B MICROPROCESSOR ANALYZER (3.5 lb/1.5 kg)

1054B DC 01 EXAMPLE

Code Measurement

DC Dual Cell Conductivity/Resistivity

Code Display

01 LCD Display
02 LED Display

5

MODEL 1054B DC SECTION 2.0

INSTALLATION

SECTION 2.0

INSTALLATION

2.1 GENERAL. This analyzer's enclosure is suitable

for outdoor use. However, it should be located in an
area where temperature extremes and vibrations are
minimized or absent. Installation must be performed by
a trained technician.

2.2 UNPACKING AND INSPECTION. Inspect the
analyzer for shipping damage. If damaged, notify the
carrier immediately. Confirm that all items shown on
the packing list are present. Notify Rosemount
Analytical if items are missing.

2.3 MECHANICAL INSTALLATION. Select an instal­lation site that is at least one foot from any high volt­age conduit, has easy access for operating personnel,
and is not in direct sunlight. Mount the analyzer as fol­lows:

1. Remove the four screws that secure the rear
cover of the enclosure.

2. Remove the four screws holding the front panel
assembly of the enclosure and carefully pull the
front panel and connected printed circuit boards
straight out.

3. Follow the procedure for the appropriate mounting
configuration: Section 2.3.1 for panel mounting
and Section 2.3.2 for pipe mounting.

2.3.1 Panel Mounting (Standard). The Model 1054B

is designed to fit into a DIN standard 137.9 mm X

137.9 mm (5.43 inch X 5.43 inch) panel cutout

(Refer to Figures 2-1 and 2-2).

1. Prepare the analyzer as described in Section 2.3.

2. Install the mounting latches as described in Figure
2-2 (latches are shown oversize for clarity). If the
latches are not installed exactly as shown, they
will not work correctly. The screws provided are
self-tapping. Tap the screw the full depth of the
mounting latch (refer to side view) leaving a gap
greater than the thickness of the cutout panel.

3. Align the latches as shown and insert the analyz­er enclosure through the front of the panel cutout.
Tighten the screws for a firm fit. To avoid damag­ing the mounting latches, do not use excessive
force.

4. Replace the front panel assembly. Circuit boards
must align with the slots on the inside of the enclo­sure. Replace the door and four front panel
screws.

2.3.2 Pipe Mounting (PN 23053-00). The 2 in. pipe

mounting bracket includes a metal plate with a cutout
for the analyzer (Refer to Section 2.3 for mounting the
analyzer into the plate). Mounting details are shown in
Figure 2-3.

2.4 ELECTRICAL WIRING. The Model 1054B has

three conduit openings in the bottom rear of the ana­lyzer housing which will accommodate 1/2 inch con­duit fittings. From the front view, the conduit opening
on the left is for sensor wiring; the center is for signal
output and the opening on the right is for alarm, and
AC connections. Sensor wiring should always be run
in a separate conduit from power wiring. AC power
wiring should be 14 gauge or greater.

NOTE

For best EMI/RFI protection the output
cable should be shielded and enclosed
in an earth grounded rigid metal conduit.
When wiring directly to the instrument
connect the output cable’s outer shield
to the transmitter’s earth ground via ter­minal 8 on TB3 (Fig. 2-4). The sensor
cable should also be shielded. When
wiring directly to the instrument connect
the sensor cable’s outer shield to the
transmitter’s earth ground via terminal 8
on TB-2 (Fig 2-4.) If the sensor cable's
outer shield is braided an appropriate
metal cable gland fitting may be used to
connect to braid to earth ground via the
instrument case.

The user must provide a means to dis­connect the main power supply in the
form of circuit breaker or switch. The cir­cuit breaker or the switch must be locat­ed in close proximity to the instrument
and identified as the disconnecting
device for the instrument

6

MODEL 1054B DC SECTION 2.0

INSTALLATION

2.4.1 Power Input Wiring. The Model 1054B can be

configured for either 115 VAC or 230 VAC power.
Connect AC power to TB1-8 and -9 (115 VAC) or TB1-

7 and -8 (230 VAC) ground to the ground terminal at
TB3-8 (refer to Figure 2-4).

CAUTION

The sensitivity and stability of the analyzer
will be impaired if the input wiring is not
grounded. DO NOT apply power to the
analyzer until all electrical connections are
verified and secure. The following precau­tions are a guide using UL 508 as a safe­guard for personnel and property.

1. AC connections and grounding must be in compli­ance with UL 508 and/or local electrical codes.

2. The metal stiffener is required to provide support
and proper electrical continuity between conduit
fittings.

3. This type 4/4X enclosure requires a conduit hub
or equivalent that provides watertight connect,
REF UL 508-26.10.

4. Watertight fittings/hubs that comply with the
requirements of UL 514B are to be used.

5. Conduit hubs are to be connected to the conduit
before the hub is connected to the enclosure, REF
UL 508-26.10.

6. If the metal support plate is not used, plastic fit­tings must be used to prevent structural damage
to the enclosure. Also, appropriate grounding lug
and awg conductor must be used with the plastic
fittings.

2.4.2 Output Wiring. The signal output and alarm

connections are made to terminals 1 – 6 of TB1 and
TB3 1 – 4. (Refer to Figure 2-4).

2.4.3 Sensor Wiring. See Figure 2-5.

2.5 SENSOR INSTALLATION.

The Model 1054B DC is designed to work with 400
Series, 140 Series, and 150/160 sensors. Refer to
Figure 2-4 and Figure 2-5 for sensor wiring. Wire col­ors are: BLACK is CELL-1/2 TB2-1/5: WHITE is
GROUND TB2-2/6: RED is RTD-1/2 TB2-3/7.

2.5.1 Cell Location. A mounting location should be
chosen to meet the following considerations:

1. Avoid dead ends or pipe stubs or any location
where circulation might be poor.

2. If velocity is very low, mount the cell so that the
stream is directed against the end of the elec­trodes and the water will flow between the elec­trodes.

3. Be sure that the pipe is full of water and that the
cell is completely immersed up to the pipe
threads.

4. Cell mounting vertically downward is not recom­mended due to possible air entrapment.

2.5.2 Screw-in Cell Installation. The conductivity cells

should be screwed gently into a female pipe fitting
using a parallel jaw wrench. Threads of stainless steel
should be coated with a suitable pipe compound which
will act to seal the treads, and prevent the need for
overtightening. Teflon thread tape is recommended for
this purpose. After the cell is installed, the cell cable
should be supported in such a way as to reduce strain
and minimize the danger of the cable becoming
snagged and pulled from the cell.

2.5.3 Flow Through Cell Installation. The flow

through cells are provided with 1/4" Swagelok

TM

tube
fittings. These are suitable for direct insertion into 1/4"
O.D. sample lines. If connection to the plastic tubing
is desired, the SwagelokTMfittings may be removed
and replaced with 1/4" FPT - hose barb fittings. Fitting
threads should be coated with a suitable pipe com­pound which will act to seal the treads, and prevent
the need for overtightening. Teflon thread tape is rec­ommended for this purpose. After the cell is installed,
the cell cable should be supported in such a way as to
reduce strain and minimize the danger of the cable
becoming snagged and pulled from the cell.

7

MODEL 1054B DC SECTION 2.0

INSTALLATION

FIGURE 2-1. Panel Mounting Cutout

WHEN INCH AND METRIC DIMS

ARE GIVEN

MILLIMETER

INCH

DWG. NO. REV.

41054B01 B

8

MODEL 1054B DC SECTION 2.0

INSTALLATION

FIGURE 2-2. Panel Mounting Tab Installation

DWG. NO. REV.

41054A26 A

9

MODEL 1054B DC SECTION 2.0

INSTALLATION

FIGURE 2-3. Pipe Mounting Installation

WHEN INCH AND METRIC DIMS

ARE GIVEN

MILLIMETER

INCH

DWG. NO. REV.

41054B02 C

10

FIGURE 2-4. Electrical Wiring

MODEL 1054B DC SECTION 2.0

INSTALLATION

DWG. NO. REV.

41054B46 A

11

FIGURE 2-5. Sensor Wiring

MODEL 1054B DC SECTION 2.0

INSTALLATION

NOTE: TERMINALS IN JUNCTION BOX ARE

NOT NUMBERED.

6

OLD MODEL 140 SERIES SENSORS MAY
NOT MATCH THE FIGURE.

GRAY

GRAY

12

Configuration is all accomplished through a series of
menus located within the set mode menu. To access
these set mode menus the ACCESS keypad is
pressed TWICE in RAPID succession.

Once inside the Set mode menu, use the SCROLL
keypad to scroll through the menu list. When the menu
desired is displayed, release the SCROLL keypad.

To enter the submenus press the SELECT keypad. If
the submenu allows editing, the item will flash that can
be edited. If not, use the SCROLL keypad to scroll
through the next list of submenus. SELECT will enter
this submenu and if it is editable, the field will flash.

To exit the menu and SAVE the new value, press the
ENTER keypad.

To exit the menu without saving the edited value, press
the PV keypad to jump out of the set menu program with
out saving value. To change other parameters will
require re-entering the set menu program.

Figure 3-4 explains the various fields surrounding the
primary process variable on the 1054B DC display.

Table 3-1 describes the functions accessible with the 8
keypads, the number of times to press the keypad to
access, and its function when used with the select key­pad and set menu.

Tables 3-2 and 3-3 describe the meaning of the various
mnemonics used on the display . They are categorized by
their use in either menus, or as process information.

MODEL 1054B DC SECTION 3.0

DESCRIPTION OF CONTROLS

SECTION 3.0

DESCRIPTION OF CONTROLS

3.1 KEYBOARD FUNCTIONS. All operations of the

Model 1054B microprocessor Analyzer are controlled
by the 8 keypads on the front of the instrument. These
keypads are used to :

1. Display parameters other than the primary param­eter.

2. Edit setpoints for alarms, set up specific output
current value for simulation, calibrate temperature,
conductivity, etc.

3. Configure display for temperature units, for auto­matic temperature compensation, alarm usage,
setting timer functions, security, and output range.

To view, and not change parameters, other than the
primary parameter requires only a simple keystroke
routine. As shown in Figure 3-1, a single keystroke
accesses the lower function printed on the keypad.
Quick, double keypresses access the top function
printed on the keypad.

To edit any of these parameters, requires one more
operation. After displaying the value associated with
the parameter selected, press the SELECT keypad
seen in Figure 3-2. This will display the numerical
value, and the first digit will be flashing to indicate this
value may be edited.

All changes to the operating program that set-up the
instrument display are made through the set menu pro­gram. See Figure 3-5 at the end of this section.

FIGURE 3-1. Function Select on Keypad.

Single press of the keypad will access the
process variable. Read only.

1. Press Key.

2. Adj shows briefly.

3. Numbers show with digit flashing.

1 .Press Key twice.

2. Lo shows briefly.

3. Zero point is displayed.

SELECT

ZERO

ALARM

1

OUTPUT

PV

FIGURE 3-2. Accessing Editing Function.

1. Press twice in rapid succession.

2. See SEt on display. Confirms entry
into set mode menu.

3. First menu item is displayed. Analyzer
now ready to configure.

4. Use the SCROLL keypad to rotate
through the available menus, select cell
input 1 or 2, or scroll through digits or
decimal point in adjustment mode.

ACCESS

ENTER

SEt

1 Cin

Ï

FIGURE 3-3. Accessing Configuration Menus

Quick double press will access the current
output value in mA or %. Read only.

Í

13

MODEL 1054B DC SECTION 3.0

DESCRIPTION OF CONTROLS

FIGURE 3-4. LCD Display

RELAY 1
ACTIVATED

RELAY 3
ACTIVATED
(MINUS SIGN)

RELAY 2
ACTIVATED

CELL SELEC­TION:

- 1 CELL
FLAG ON;

- 2 CELL
FLAG BLINKING

UNITS: µS(/cm)
FLAG ON;
UNITS:mS(/cm)
FLAG BLINKING

UNITS: M (-cm)
FLAG ON;
UNITS: k (-cm)
FLAG BLINKING

UPPER FUNC­TION PRESS
TWICE
QUICKLY

LOWER FUNC­TION PRESS
ONCE

3.1.1 Item Selection and Value Adjustment Keys.

The three keys located on the lower right side of the
keypad are used for menu navigation, value adjust­ment and entry, and item selection. These keys per­form the following functions:

A. SELECT/Shift (

Í) Key. This key is

used to select the displayed menu, or for
shifting to the next digit in the Numeric
Display.

B. SCROLL Key (Ï). This key is used to
scroll through menu when selected,
select cell input or scroll through digits on
the active (flashing) Numeric Display, or
move the decimal point.

C. ACCESS/ENTER Key. This key is
used to ACCESS the Set Mode (Section

4.1.2) and to ENTER the displayed value
into memory (from Numeric Display).

Í

SELECT

Ï

ACCESS

ENTER

14

TABLE 3-1. Key Description

Displays - current output (mA or % full scale).
Set Function (w/SELECT) - Simulates current

output.

Displays - low current setpoint.
Set Function (w/SELECT) - Sets low

current point.

Displays - full scale output setpoint.
Set Function (w/SELECT) - Sets full

scale output point.

Select sub menu (mnemonic display).
Shift to next digit (numeric display).

Select cell 1/2 input
Scroll through menu (mnemonic display).

Scroll digits (numeric display).
Scroll decimal position, µS/mS (mΩ/kΩ) dis­play.

Press twice to access set-up menu.
Enter displayed value into memory.
Enter displayed menu item (flashing) into memory.

(w/SELECT) one point standardization of
conductivity (w/SCROLL) cell

1 or 2

Displays - Alarm 1 setpoint.
Set Function (w/SELECT) - Sets

Alarm 1 setpoint.

Displays - P.V.

(w/SCROLL) cell

1/2

(PV=Process Variable)

Initiates or removes analyzer from hold con­dition.

Displays - process temperature
w/SCROLL cell 1/2

Set Function (w/SELECT) - One point
standardization of temperature
w/SCROLL cell 1/2

Displays - Alarm 2 setpoint.
Set Function (w/SELECT) - Sets

Alarm 2 setpoint.

HOLD

TEMP

OUTPUT

PV

ZERO

ALARM 1

F.S.

ALARM 2

CAL

Í

SELECT

Ï

ACCESS

ENTER

SECOND FUNCTION (PRESS TWICE QUICKLY)MAIN FUNCTION (PRESS ONCE)

MODEL 1054B DC SECTION 3.0

DESCRIPTION OF CONTROLS

15

MODEL 1054B DC SECTION 3.0

DESCRIPTION OF CONTROLS

MNEMONIC DESCRIPTION

1°C Temperature °C Cell 1
2°C Temperature °C Cell 2
1°F Temperature °F Cell 1

2°F Temperature °F Cell 2
AdJ Adjustment to value reading
bAd Incorrect entry
CAL Standardize Conductivity/Resistivity

1Con Conductivity Cell 1
2Con Conductivity Cell 2
1dOC Displays current output 1 (mA)
2dOC Displays current output 2 (mA)

HLd Analyzer in Hold Position

1 HI Displays high range value for

current output 1

MNEMONIC DESCRIPTION

2 HI Displays high range value for

current output 2

1 LO Displays low range value for current

output 1

2 LO Displays low range value for current

output 2

LOC Access locked – enter security code
1Pct Displays current output 1 (percent)
2Pct Displays current output 2 (percent)
1rES Resistivity cell 1
2rES Resistivity cell 2

SEt Set mode

SP1 Displays Alarm 1 setpoint

SP2 Displays Alarm 2 setpoint

420 4mA to 20mA output
020 0mA to 20mA output
AL1 Alarm 1 setup
AL2 Alarm 2 setup
AL3 Alarm 3 setup

Atc

Auto. Temp. Comp.

°C Degrees Centigrade

CAt Cation Compensation
1CEL Cell Constant - Cell 1
2CEL Cell Constant - Cell 2
1Cin Absolute Conductivity Cell 1
2Cin Absolute Conductivity Cell 2

COd Security Code

Con Conductivity Display

CUr Config. current output
1Cur Config. fault output 1
2Cur Config. fault output 2

cur Default current setpoint

CYC

Auto Cycle cell 1/2 display

dFt Fault Configuration
d-O Display output
doc Display output in mA
doF Delay off time
don Delay on time
dPn Dampen output

d-t

Temperature display setup

dtS LCD/LED Display test

°F Degrees Fahrenheit

1Fct Calibration Factor - Cell 1
2Fct Calibration Factor - Cell 2

FLt Use alarm as fault alarm

Hi Relay action - high
H-L Alarm logic
HYS Hysteresis

Lo Relay action - low
non No action on fault

nEu

Neutral Salt Compensation

oFF Relay open on fault

OFF Alarm not used

on Relay closed on fault

On

Use alarm as process alarm

1 OUt Current output 1 config.
2 OUt Current output 2 config.

Pct

Display output in percent

rES Resistivity Convention
rL1 Relay 1 fault setup
rL2 Relay 2 fault setup
rL3 Relay 3 fault setup
SP3 Setpoint for alarm 3

SHO

Show fault history

1 t Select 1 cell temperature

2 t Select 2 cell temperature
1t-C 1 cell temp. setup
2t-C 2 cell temp. setup
1tYP PV setup - cell 1
2tYP PV setup - cell 2

UEr User version

TABLE 3-3. Set Function Mnemonics

TABLE 3-2. Information Mnemonics

16

MODEL 1054B DC SECTION 3.0

DESCRIPTION OF CONTROLS

1Cin
2Cin
1CEL
2CEL
1FCt
2FCt
1tYP
2tYP

AL1

AL2

AL3

1t-C
2t-C

1OUt
2OUt

UEr

dFt

dtS

COd

CYC

SEt

1t

2t

OFF

Hi

Lo

SP3

H-L

HY5

don

dof

doc

Pct

on

oFF

non

non

cur

rL1

rL2

rL3

1Cur

2Cur

SHO

420

020

dPn

CUr

d-O

FIGURE 3-5. Set Menu Items

rES

Con

H-L

HYS

don

doF

1CEL

OFF

Hi

Lo

1CEL

2CEL

FLt

OFF

CAt

nEu

1CEL

2CEL

1t

2t

d-t
Atc

on

oFF

o

F

o

C

on

oFF

17

MODEL 1054B DC SECTION 4.0

CONFIGURATION

SECTION 4.0

CONFIGURATION

4.1 GENERAL. This section details all of the items avail-

able in the Set Mode to configure the analyzer to a spe­cific application.

4.1.1. Configuration Worksheet. The configuration
worksheet on page 18 should be filled out before pro­ceeding with the analyzer’s configuration. This sheet
gives a brief parameter description, the factory setting,
and a space for user setting.

4.1.2 Set Mode Display Mnemonic SEt. Most of the
analyzer's configuration is done while in the Set
Mode. Please refer to Figure 3-5 for the layout of all
menu items. All menu variables are written to the ana­lyzer's EEPROM (memory) when selected and remain
there until changed. As these variables remain in
memory even after the analyzer's power is removed,
the analyzer configuration may be performed prior to
installing it.

1. Power up the analyzer. Only power input wiring is
required for analyzer configuration (Refer to
Section 2.4.1). The analyzer's display will begin
showing values and/or fault mnemonics. All fault
mnemonics will be suppressed while the analyzer
is in Set Mode (the fault flag will continue to blink).

2. Enter Set Mode. Pressing the ACCESS key twice
in rapid succession will place the analyzer in Set
Mode. The display will show SEt to confirm that it
is in Set Mode. It will then display the first item in
the set menu. The analyzer is now ready for user
configuration.

NOTE:

If LOC displays, the Keyboard Security
Code must be entered to access the Set
Mode. (Refer to Section 6.0.)

3. Analyzer variables can be entered in any order.
On initial configuration, however, it is recommend­ed that the variables be entered in the order
shown on the worksheet. Refer to the configura­tion worksheet (Table 4-1). This will reduce the
chance of accidentally omitting a needed variable.

4.2 PROCESS VARIABLE. Display Mnemonic tYP1 (for

cell 1) tYP2 (for cell 2). Used to select display convention
of the process variable.

A. Resistivity. Display Mnemonic rES. Select this item
to display resistivity values (MΩ/cm or kΩ/cm).

B. Conductivity. Display Mnemonic Con. Select this
item to display conductivity values (µS/cm or mS/cm).

C. Neutral salt compensation. Display Mnemonic
nEu. Accept this item to use neutral salt temperature
compensation algorithm for ultra pure water with trace
amounts of sodium chloride.

D. Cation Compensation. Display Mnemonic CAt.
Accept this item to use cation temperature compensa­tion algorithm.

E. Raw Conductivity (no temperature compensation)

NOTE

To set up the instrument to output raw
(uncompensated) conductivity, go to
Section 4.4B and set the automatic tem­perature compensation to oFF, and set
the manual temperature to 25°C (77°F)
under1t-C (and 2t-C as desired). The
analyzer will still output the actual tem­perature correctly if temperature is
selected as the output variable. This pro­cedure is required by USP 23.

18

MODEL 1054B DC SECTION 4.0

CONFIGURATION

TABLE 4-1.

CONFIGURATION WORKSHEET

Use this worksheet to assist in the configuration of the analyzer. Date: _________________

RANGE FACTORY SET USER SET

A. Process Variable Display (1tYP/2tYP)

1. Conductivity or Resistivity (Con/rES) Con _________

2. Temperature Compensation (nEu/CAt) nEu _________

B. Alarm 1 Setup (AL1)

1. Alarm Configuration (1CEL/OFF) 1CEL _________

2. High or Low (H-L) (Hi/Lo) HI _________

3. Hysteresis (HYS) 0-25 % of setpoint 0.00% _________

4. Delay Time On (don) 0-255 sec. 000 Seconds _________

5. Delay Time Off (doF) 0-255 sec. 000 Seconds _________

C. Alarm 2 Setup (AL2)

1. Alarm Configuration (1CEL/2CEL/FLt/OFF) 2CEL _________

2. High or Low (H-L) (Hi/Lo) HI _________

3. Hysteresis (HYS) 0-25 % of setpoint 0.00% _________

4. Delay Time On (don) 0-255 sec 000 Seconds _________

5. Delay Time Off (doF) 0-255 sec 000 Seconds _________

D. Alarm 3 (AL3)

1. Alarm Configuration (1 t/2t/OFF) 1 t _________

2. Alarm 3 Setpoint (SP3) 0 to 135°C 20°C _________

3. High or Low (H-L) (Hi/Lo

) oFF _________

4. Hysteresis (HY5) 0 to 25% of setpoint 0% _________

5. Delay time on (don) 0 to 255 sec 0 Second _________

6. Delay time on (doF) 0 to 255 sec 0 Seconds _________
E. Temperature Setup (1t-C/2t-C)

1. Display temperature (d-t) (

°

C

/

°

F

)°C _________

2. Automatic Temp. Compensation (AtC) (on/oFF) on
a. Manual temp. value (when

oFF)

(

0 to135

°

C)

F. Current Output Setup (1OUt/2OUt)

1. Process Variable Selection (1CEL/2CEL/1t/2t)

1Out: 1CEL,2Out: 2CEL

_________

2. mA Output (CUr) (020/420) 420 _________

3. Display Current Output (d-0) (Pct/doc) doc _________

4. Dampen Current Output (dPn) 0-255 sec. 0 Seconds _________

G. Default Setup (dFt)

1. Relay 1 default (rL1) (non/oFF/on) non _________

2. Relay 2 default (rL2) (non/oFF/on) non _________

3. Relay 3 default (rL3) (non/oFF/on) non _________

4. Current Output Default (1Cur/2Cur) (non/cur) non _________

H. Keyboard Security Setup (COd)

1. Keyboard Security Required 001-999 _ _________

2. Keyboard Security Not Required 000 000 _________

I. Alarm Set Points

1. Alarm 1 (SP1)

0-20,000µS/cm (0 to 50MΩ) 50µS/cm

_________

2. Alarm 2 (SP2)

0-20,000µS/cm (0 to 50MΩ) 100µS/cm

_________

J. Current Output

1. Zero (0 or 4 mA) (1 LO/2 LO)

Conductivity: 0-20,000µS/cm 1 Lo 2 LO: 0µS/cm

_________

2. F.S. (20 mA) (1 HI/2 HI) Resistivity: 0 to 50M

Ω

1HI: 10µS/cm

Temperature: 0 to 135°C 2HI: 20µS/cm

19

D. Alarm Logic. Mnemonic H-L. Select this item for

high or low alarm logic. High logic activates the alarm
when the reading is greater than the set point value.
Low logic activates the alarm when the reading is less
than the set point value.

E. Relay Hysteresis. Display Mnemonic HYS. Sets the
relay hysteresis (dead band) for deactivation after reading
has passed the alarm set point. May be set from 0 to 25%.
Use hysteresis when a specific conductivity should be
reached before alarm deactivation.

F. Delay Time On. Display Mnemonic don. Sets time
delay for relay activation after alarm set point is
reached. May be set from 0 to 255 seconds.

G. Delay Time Off. Display Mnemonic doF. Sets time
delay for relay deactivation after alarm set point is
reached. May be set from 0 to 255 seconds. Alarm
state restarts time from zero. Use when a fixed time
should pass before relay deactivation occurs.

4.3.1 Alarm 1 and 2 Configuration (AL1/AL2). Refer to
Figure 4-2.

1. Enter Set Mode by pressing ACCESS key twice.

2. SCROLL (Ï) until AL1 or AL2 appears on the dis­play.

3. SELECT to move to the next menu level. 1 CEL,
OFF or (AL2 only) 2 CEL or FLt will display.

4. SCROLL (Ï) to display desired item then
SELECT.

1 CEL

OFF

1 CEL
2 CEL

FLt
OFF

AL1

AL2

H-L

HYS

don

doF

Hi

Lo

SEt

Figure 4-2. Alarm 1 and Alarm 2 Configuration

MODEL 1054B DC SECTION 4.0

CONFIGURATION

4.2.1 Process Variable Configuration (tYP1/tYP2). Refer

to Figure 4-1.

1. Enter Set Mode by pressing ACCESS key twice.

2. SCROLL (Ï) until tYP1 or tYP2 appears on the dis­play.

3. SELECT to move to the next menu level. rES, or
Con will display.

4. SCROLL (Ï) to display desired item then
ENTER. nEu or CAt will display.

5. SCROLL (Ï) to display desired item then
ENTER. Display will return to

tYP1

or

tYP2

.

6. Repeat steps 2 through 5 for 2nd cell configura­tion.

4.3. ALARM 1 AND 2. Display Mnemonic AL1 or AL2.

Used to set alarm relay logic. The alarms may be used
to perform on-off process control. See note below .

A. CELL 1/2. Display Mnemonic 1 CEL/2 CEL. Select this
item if Alarm 1 or 2 is to be used as a process alarm.
Select 1 CEL to act on Cell 1 input. Select 2 CEL to act
on cell 2 input. See Steps D through G for further con­figuration.

B. OFF. Mnemonic OFF. Select this item if alarm 1 or 2
will not be used or to temporarily disable the alarm.
Alarm 1 or 2 setpoint will display oFF if this item is
selected. Omit Steps D through G.

C. Fault. Display Mnemonic FLt. (Alarm 2 only). Select
to make Alarm 2 a fault alarm. Relay 2 will energize
when the unit shows a fault condition. See Table 8-1
for a listing of the fault mnemonics and their descrip­tions. Alarm 2 setpoint will display F1 t if this item is
selected. Omit Steps D through G.

tYP1
tYP2

CAt

nEU

SEt

Figure 4-1 Process Variable Configuration.

rE5

Con

20

MODEL 1054B DC SECTION 4.0

CONFIGURATION

5. If OFF is selected, display will show oFF to acknowl­edge. Press ENTER key to return to AL1 or AL2,
concluding routine. Skip to Step 11.

If 1 CEL or 2 CEL is selected, display will show on to
acknowledge, then display H-L. Proceed to Step 6.

If FLt is selected, display will show Flt to ack­nowledge. Press ENTER key to return to AL2.

6. SELECT H-L. Hi or Lo will display (flashing).

7. SCROLL (Ï) to the desired item and ENTER it
into memory. Display will return to H-L. If changes
to relay activation logic are desired, proceed to
Step 8, otherwise Step 12.

8. SCROLL (Ï) to display HYS, don or doF then
SELECT desired item. Numerical display will flash
to indicate that a value is required.

9. Use SCROLL (Ï) and SHIFT (Í) to display the
desired value.

10. ENTER value into memory. The analyzer will
acknowledge and return to display of last item
selected. Repeat Step 8 if further changes are
desired, otherwise Step 12.

11. Repeat Step 3 for the other Alarm 2 settings as
required.

12. To return to the first level of the Set Mode, press
the ACCESS key.

4.3.2 Alarm 3. Display Mnemonic AL3. Used to set alarm

relay logic for relay 3 based on process
temperature from cell I or 2.

NOTE

If alarm 3 is activated, the negative sign
will flash on the display

A. Cell Selection. Display Mnemonic It or 2t. Select
this item to use the process temperature relay. Select
1t for input from cell one's RTD, 2t for input from cell
two's RTD.

B. Off. Mnemonic OFF. Select this item if relay 3 will not
be used.

C. Set Point. Mnemonic SP3. Select this item to enter the
alarm setpoint.

D. Alarm Logic. See Section 4.3D
E. Relay Hysteresis. See Section 4.3E

F. Delay Time On. See Section 4.3F
G. Delay Time Off. See Section 4.3G

4.3.3 Alarm 3 Configuration (AL3). Refer to Figure 4-3.

1 . Enter Set Mode by pressing ACCESS key twice.

2. SCROLL (Ï) until AL3 appears on display.

3. SELECT to move to the next menu level. It, 2t or
OFF will display.

4. SCROLL (Ï) to display desired item then SELECT.

5. If OFF is selected, display will show OFF to acknowl­edge. Press ENTER key to return to AL3, concluding
routine. Proceed to Step 13.
If 1 t or 2 t is selected, display will go to next menu
level. SP3 will display.

6. To change alarm set point, SELECT SP3. Current tem­perature setpoint will display with last digit flashing.
SCROLL and SHIFT to display the desired value.
Note: to change temperature display (°F or °C), refer
to Section 4.4 (Temperature).

7. ENTER value into memory. The analyzer will
acknowledge and return to display SP3.

8. SCROLL (Ï) to display H-L, then SELECT. HI or Lo
will display (flashing).

1 t

2 t

OFF

AL3

SP3

H-L

HYS

don

doF

Hi

Lo

SEt

Figure 4-3 Alarm 3 Configuration

21

MODEL 1054B DC SECTION 4.0

CONFIGURATION

9. SCROLL(Ï) to the desired item and ENTER it into
memory. Display will return to H-L. If changes to relay
activation logic are desired, proceed to next step.
Otherwise go to Step 13.

10. SCROLL (Ï) to display HYS, don or dof then SELECT
desired item. Numerical display will flash to indicate
that a value is required.

11. Use SCROLL (Ï) and SHIFT (Í ) to display the
desired value.

12. ENTER value into memory. The analyzer will
acknowledge and return to display of last item select­ed. Repeat Step 10 if further changes are desired.

13. To return to the first level of the Set Mode, Press the

ACCESS key.

4.4 TEMPERATURE. Display Mnemonic 1t-C / 2t-C.

Select this item for temperature reading and compen­sation choices.

A. Temperature Display. Display Mnemonic d-t.
Select this item to toggle between °F and °C temperature
display. The analyzer will show all temperatures for both
cells in units selected until the selection is changed.

B. Automatic Temperature Compensation. Display
Mnemonic Atc. The analyzer will use the temperature input
from the sensor for temperature correction when on is
selected. When oFF is selected, the analyzer will use the
value entered by the user for temperature correction. This
manual temperature option is useful if the temperature
sensor is faulty or not on line, or if uncompensated (raw)
conductivity will be output. Use 25°C (or 77°F) as the man­ual temperature in this case. Temperature specific faults
will be disabled (refer to Section 8.0).

4.4.1 Temperature Configuration t-C. Refer to Fig. 4-4.

1. Enter Set Mode by pressing ACCESS key twice

2. SCROLL (Ï) until 1t-C (for cell one) or 2t-C (for cell

two) appears on the display.

3. SELECT to move to the next menu level. d-t will

display.

4. SCROLL (Ï) to display desired item then SELECT it.

5. If d-t is selected, display will show °C or °F. If Atc is

selected, display will show on or oFF

6. SCROLL (Ï) then ENTER desired item into memory.

7. If °C, °F or on are entered, display will return to the
previous level (proceed to Step 9).
If oFF is selected, numerical display will flash
indicating that a process temperature value is
required (proceed to Step 8).

8. Use SCROLL (Ï) and SHIFT (Í) to display the
desired value ENTER value into memory

9. Repeat Steps 4-8 as required for other item

10.Press the ENTER key to return to Set Menu.

11. Repeat Steps 2-10 for second cell.

4.5 CURRENT OUTPUT. Display Mnemonic is 1 OUt2

OUt. These items are used to configure the output signals.

Each output corresponds to a user selectable item.

A. Conductivity/Resistivity. Display Mnemonic 1CEL or
2CEL. Select 1CEL to correspond to the process variable
measured by cell one, 2CEL for cell two's process variable.

B. Process Temperature. Display Mnemonic 1t or 2t.
Select 1t to correspond output to temperature of cell
one's process temperature, 2t for cell two's process tem­perature.

Operation of output is user selectable as follows:
A. Output Dampening. Display Mnemonic dPn. Dampens

the response of the signal output. This option is useful to
minimize the effect of a noisy reading. The number
entered is the sample time (in seconds) for an averaged
output. Zero to 255 seconds may be entered.

B. mA Output Range. Display Mnemonic CUr. Selection
of this item will allow choice of 0 to 20 mA or 4 to 20 mA
output range.

C. Display Output. Display Mnemonic d-O. This item is
used to select logic of output display. Selecting this item
will allow the analyzer to display current output as mA
(doc) or as a percent of full scale output range (Pct).

SEt

1 t-C

2 t-C

d-t

Atc

°F

°C

on

oFF

Figure 4-4. Temperature Configuration

22

4.5.1 Current Output Configuration 1OUt / 2OUt. Refer to

Figure 4-5.

1. Enter Set Mode by pressing the ACCESS key twice.

2. SCROLL (

Ï

) until 1OUt2OUt appears on the display.

3. SELECT to move to the next menu level. The item
presently in memory will display.

4. SCROLL (

Ï

) then SELECT desired item.

5. If dPn is selected, numerical display will flash indicat­ing that a value is required (proceed to Step 6).

If CUr or d-O is selected, proceed to Step 7.

6. SCROLL (

Ï

) then SHIFT (Í) to display the desired

value. ENTER into memory

7. SCROLL (

Ï

) then ENTER desired item.

8. Repeat Steps 4-7 as required.

9. Press the ENTER key to return to the Set Menu.

10. Repeat Steps 2-9 for second output configuration.

4.6 DEFAULTS. Display Mnemonic dFt. This item is
used to set the configuration of relays and output
default conditions during fault or hold status. See Table
8-1 for a listing of the possible fault conditions which
can be diagnosed by the analyzer. A hold status is initi­ated by pressing the HOLD key twice. (Press twice
again to remove the hold.)

A. Relay 1, 2 and 3. Display Mnemonic rL1, rL2 and
rL3. The relays can be set to activate on, deactivate
oFF, or hold present status non. See Table 4-2.

B. Current Output. Display Mnemonic Cur.The current
output is held non or goes to a specified value cur dur­ing a fault condition. cur will probably be the most
informative selection.

MODEL 1054B DC SECTION 4.0

CONFIGURATION

1 Out

2 Out

SEt

1 CEL

2 CEL

1 t

2 t

doc

Pct

dPn

CUr

d-O

420

020

Figure 4-5. Current Output Configuration

C. Fault History. Display Mnemonic SHO. Selecting this

item will display the most recent detected faults. Press
the SCROLL key once for each previous fault history.
Pressing ACCESS will clear SHO history.

4.6.1 Default Configuration (dFt). dFt Refer to Figure
4-6.

1. Enter Set Mode by pressing the ACCESS key
twice.

2. SCROLL (Ï) until dFt appears on the display.

3. SELECT to move to the next menu level. rL1 will
display.

4. SCROLL (Ï) then SELECT desired item.

5. Display will show next item selection. SCROLL
(Ï) and ENTER desired item.

6. Repeat Steps 4 and 5 as required for other default
settings rL2, rL3, 1Cur and 2Cur. If cur is selected
for 1Cur / 2Cur, press ENTER then use the
SCROLL (Ï) and SHIFT (Í) keys to enter the
desired current value in mA.

7. Press the ENTER key to return to Set Menu.

SEt

dFt

rL1

rL2

rL3

1Cur

2Cur

SHO

on

oFF

non

non

cur

Figure 4-6. Default Configuration

4.7 ALARM SETPOINT. Alarms 1 & 2. The alarms set-

points should be adjusted after completing the configu­ration procedure outlined in Sections 4.1 to 4.6. (Refer
to Figure 4-7.)

NOTE

Alarm 3 setpoint is set under set mode. See
Section 4.3.2.

1. Press the PV key to ensure that the analyzer is not
in Set Mode.

23

2. Press the ALARM 1 or ALARM 2 key. SP1 or SP2
will show briefly, followed by the Alarm 1 or Alarm
2 Setpoint.

NOTE:

If the alarm is set to OFF or FLt (Alarm 2
only), the analyzer will display oFF or F1 t
respectively. (Refer to Section 4.2, Alarm
Configuration.)

3. Press SELECT to adjust the value. The display
will acknowledge briefly with AdJ followed by the
Numeric Display with digit flashing.

4. SCROLL (

Ï

) and SHIFT (Í ) to display the

desired value.

5. ENTER value into memory. Repeat Steps 2 to 5
for the second setpoint.

ZERO

ALARM

1

F.S.

ALARM

2

ACCESS

Í

SELECT

Ï

AdJ

SP1/2

Í

SELECT

ENTER

Press

Once

Press
Once

Displays

Briefly

Displays

Briefly

Numeric

Display

Change to

desired

value

Press

Once

Numeric

Display

of

Setpoint

FIGURE 4-7. Alarm Setpoint

MODEL 1054B DC SECTION 4.0

CONFIGURATION

ANALYZER CONDITION

NORMAL HOLD FAULT

Set menu AL1/AL2/AL3 setting Set menu AL1/AL2/AL3 setting Set menu AL1/AL2/AL3 setting

On OFF FLt On OFF FLt On OFF FLt

(Alarm 2 (Alarm 2 (Alarm 2

only) only) only)

on Proc. det. – – + – – + – +
off Proc. det. – – – – – – – +
non Proc. det. – – Proc. det. – – Proc. det. – +

Set Menu

default

(dFt)

setting

rL1rL2rL3

Proc. det.: Alarm state is determined by

the process value.

+:Relay will activate.
–:Relay will not activate.

Example: If you want the analyzer to activate relay 1 in

hold mode during calibration, set AL1 to On
in Section 4.3, and set rL1 to on.

TABLE 4-2. Relay States for Various Conditions and Alarm/Default Configurations

NOTE

Selection of the µS/mS and decimal
position is achieved by pressing SHIFT
(Í) until the µS/mS flag flashes, then
SCROLL (Ï) until the desired combina-
tion of decimal position and mS (flash­ing)/µS (not flashing) flag are displayed.
Follow the same procedure to select the
MΩ/kΩ and decimal position.

Alarm logic may be changed from nor­mally open (N.O.) to normally closed
(N.C.) by cutting circuits (W5, W7 & W9)
on the power supply PCB and adding
jumpers (W4, W6, & W8).

24

MODEL 1054B DC SECTION 4.0

CONFIGURATION

4.8 OUTPUT SCALE EXPANSION. The output is con-

trolled as user configured. The output zero and full scale
value should be adjusted after completing the configura­tion procedure as outlined in Sections 4.1 to 4.6. (Refer
to Figure 4-8.)

A. ZERO POINT (0 mA or 4 mA) 1 LO/2 LO

1. Press the PV key to ensure that the unit is not in
Set Mode.

2. Press the ALARM 1 key twice. The display will
show 1 LO or 2 LO briefly then display the ZERO
point. Scroll (<) to toggle 1 LO/2 LO.

3. Press SELECT to adjust the value. The display
will acknowledge briefly with AdJ followed by the
Numeric Display with digit flashing.

4. SCROLL (Ï) and SHIFT (Í ) to display the
desired value.

5. ENTER value into memory. The display will show
1 LO/2 LO and display the entered value.

6. Repeat steps 2-5 for second output.

B. Full Scale (F.S.) Point (20 mA) 1 HI/2 HI

1. Press the PV key to ensure that the analyzer is
not in Set Mode.

2. Press the ALARM 2 key twice. The display will
show 1 HI or 2 HI briefly then display the FULL
SCALE point. SCROLL (<) to toggle 1 HI/2 HI.

3. Press SELECT to adjust the value. The display
will acknowledge briefly with AdJ followed by the
Numeric Display with digit flashing.

4. SCROLL (Ï) and SHIFT (Í ) to display the
desired value.

5. ENTER value into memory. The display will show
1 HI/2 HI and display the entered value.

6. Repeat steps 2-5 for the second output.

NOTE

For a reverse output, enter the higher
value for zero, and the lower value for
the Full Scale.

ZERO

ALARM

1

F.S.

ALARM

2

ACCESS

Í

SELECT

Ï

AdJ

1 LO

/1 HI

2 LO

/2HI

Í

SELECT

ENTER

Press
Twice

Press to

Toggle

Output

1 & 2

Displays

Briefly

Displays

Briefly

Numeric

Display

Change to

desired

value

Press

Once

Numeric

Display

of

Setpoint

FIGURE 4-8. Output Scale Expansion

Ï

Press

Once

25

4.9 SIMULATE CURRENT OUTPUTS. The outputs

can be simulated to check the operation of devices
such as valves, pumps, or recorders. The outputs can
be simulated in either current (mA) or percent of full
scale, depending on how the output displays d-O were
configured in Section 4.5. (Refer to Figure 4-9.)

A. Simulate Output in Percent 12SiP. The output
can be simulated in percent if d-O in Section 4.5 was
configured to display percent Pct.

1. Press the PV key once to insure that the analyzer is
not in the Set Mode.

2. Press the OUTPUT key twice. The display will
show 1Pct or 2Pct briefly, then display the output
value in percent of full scale. SCROLL (Ï) to tog­gle 1Pct/2Pct.

3. Press SELECT to simulate the output. The display
will briefly acknowledge with 1SiP or 2SiP followed
by the Numeric Display with digit flashing.

4. SCROLL (Ï) and SHIFT (Í ) to display the
desired value.

5. ENTER value into memory. The display will show
1Pct or 2Pct and display the entered value. Also,
the display will flash to acknowledge that the ana­lyzer is placed on hold HLd. In hold mode the relays
will be set as determined in Section 4.6.

6. To remove the analyzer from hold, press the
HOLD key twice. The hold flag on the display will
be removed and the display will stop flashing.

B. Simulate Output in Current 1SiC / 2SiC. The output

can be simulated in mA units if d-O in Section 4.5
was configured to display current doc.

1. Press the PV key once to insure that the analyz­er is not in the Set Mode.

2. Press the OUTPUT key twice. The display will
show 1dOC or 2dOC briefly, then display the output
value in mA. SCROLL (Ï) to toggle 1dOC/2dOC.

3. Press SELECT to simulate the output. the display
will briefly acknowledge with Sic followed by the
Numeric Display with digit flashing.

4. SCROLL (Ï) and SHIFT (Í ) to display the
desired value.

5. ENTER value into memory. The display will show
dOC and display the entered value. Also, the dis­play will flash to acknowledge that the analyzer is
placed on hold HLd. In hold mode the relays will
be set as determined in Section 4.6.

6. To remove the analyzer from hold, press the
HOLD key twice. The hold flag on the display will
be removed and the display will stop flashing.

MODEL 1054B DC SECTION 4.0

CONFIGURATION

OUTPUT

COND

ACCESS

Í

SELECT

Ï

1

/2SiC

1/2SiP

1

/2Pct

1

/2dOC

Í

SELECT

ENTER

Press
Twice

Press

Once

Displays

Briefly

Displays

Briefly

Numeric

Display

Change to

desired

value

Press

Once

Numeric

Display

of Output

(Analyzer in

hold)

FIGURE 4-9. Simulate Current Output

Ï

Press to

Toggle
Output

1 & 2

26

4.10 DISPLAY CYCLE. Display Mnemonic CYC. This

feature allows the display to alternate between cell
one and cell two PV readings. Refer to Figure 4-10.

1. Enter the Set Mode by pressing the ACCESS key
twice.

2. SCROLL (

Ï

) until CYC appears on the display.

3. SELECT to move to next menu level. Display will
flash showing present cycle mode: on or oFF

4. SCROLL (

Ï

) to display desired item then ENTER.
If oFF is entered, display will return to the previous
level and the display will not cycle. If on is entered,
display will show cycle time in seconds. SCROLL

(

Ï

) and SHIFT(Í) to display desired value, then
enter. Display will toggle between PV of cell one
and PV of cell two each cycle time.

MODEL 1054B DC SECTION 4.0

CONFIGURATION

SEt

CYC

on

oFF

FIGURE 4-10. Display Cycle

27

MODEL 1054B DC SECTION 5.0

START-UP AND CALIBRATION

SECTION 5.0

START-UP AND CALIBRATION

5.1 START-UP AND CALIBRATION. Calibration and

operation of the Model 1054B DC should begin only
after completion of configuration of the analyzer. The
sensor must be wired (including junction box and inter­connecting cable) as it will be in operation.

5.1.1 Entering the Cell Constant. The cell constant is
factory set for a .01 cell constant. If the value is
correct for both cells, proceed to Section 5.1.2. If
a cell with a constant other than .01 is used, enter
the appropriate value (1CEL for cell 1, 2CEL for cell

2) as follows:

l. Enter the Set Mode by pressing the ACCESS key

twice in rapid succession. The analyzer will dis­play SEt briefly then display 1Cin.

2. SCROLL (Ï) the menu until 1CEL or 2CEL is dis­played, then SELECT it. The Numerical display
will flash to indicate that a value is desired.

3. Use SCROLL (Ï) and SHIFT (Í) to display the
correct sensor cell constant and ENTER it into
memory.

4. Repeat this procedure for the second cell if
required.

5.1.2 Entering the Cell Calibration Constant

(Factor). Model 400 Series conductivity cells intended

for use with the 1054B DC include a tag giving its cali­bration constant, Cal Const. This is a number between
0 and 999 specifying the cell’s exact cell constant.
Entering this value (1Fct for Cell 1, 2Fct for Cell 2) into
the 1054B DC allows increased measurement accura­cy. Enter the number provided on the Cell’s tag as fol­lows:

1. Enter the Set Mode by pressing the ACCESS key
twice in rapid succession. The analyzer will dis­play SEt briefly then display 1Cin.

2. SCROLL (Ï) the menu until 1Fct or 2Fctis dis­played, then SELECT it. The Numerical display
will flash to indicate that a value is desired.

3. Use SCROLL (Ï) and SHIFT (Í) to display the
correct calibration constant and ENTER it into
memory.

4. Repeat this procedure for the second cell if
required. For Model 150,160, and 140 Series
cells, perform a single point calibration (See
Section 5.1.4).

5.1.3 Temperature Calibration. Precise measure­ment of high purity water requires accurate tempera­ture measurement. For this reason it is recommended
that the cells be temperature calibrated.

To calibrate a conductivity cell, place the cell and a
high accuracy mercury thermometer into a beaker of
water. It is best, though not essential, that the sample
be near the temperature of the intended process
stream. Allow several minutes for the sensor and ther­mometer to come to equilibrium.

NOTE

Pressing the Temp key will display the
process temperature for Cell 1. To toggle
the display for the process temperature for
Cell 2, press SCROLL (Ï).

1. Observe the analyzer temperature reading by
pressing the TEMP key (and SCROLL (Ï) if
required). Assure that the reading is stable and the
sensor acclimated to the process temperature.

2. Compare the analyzer reading to the thermometer
reading. If the readings are different, proceed to
step three.

3. Press the TEMP key (and SCROLL (Ï) if
required) then the SELECT key to correct the tem­perature display. The analyzer will display AdJ
briefly, then the Numeric Display will show with
digit flashing.

4. SCROLL (Ï) and SHIFT (Í) to display the correct
value and ENTER it into memory.

5. Repeat this procedure for the second cell.

5.1.4 Cell Single Point Calibration. The Single Point

calibration adjustment is for use only in calibrating the
Model 1054B DC to match a reference instrument of
known high accuracy. To use it otherwise will result in
a reduction in system accuracy. By performing a single
point calibration, the user overrides the calibration con­stant setting.

NOTE

To completely undo the single point cali­bration adjustment, re-enter either the cell
constant or cell calibration constant of the
appropriate cell. (Section 5.1.1 - 2).

28

NOTE

After initial installation or any cleaning pro­cedure, the conductivity cell will require I to
2 days after insertion into the ultrapure
water stream before accurate readings
may be obtained. In many cases, the full

0.5% system accuracy will not be obtain­able until the cell has remained in the ultra­pure water stream a full 5 days.

NOTE

Pressing the CAL key will display the
process temperature for Cell. To toggle the
display for the process temperature for Cell
2, press SCROLL (Ï).

1. Press the CAL (and SCROLL (Ï) if required) key
then the SELECT . Std will display followed by the
Numeric Display with digit flashing.

2. SCROLL (Ï) and SHIFT (Í) to display the con­ductivity value of the known high accuracy and

ENTER it into memory.

MODEL 1054B DC SECTION 5.0

START-UP AND CALIBRATION

29

6.1 KEYBOARD SECURITY. Display Mnemonic COd.

Select this feature to display the user defined security
code. Any three digit number may be used for this
code. 000 will disable the security feature. This item is
used to prevent accidental changes to the calibration
and configuration of the analyzer. When activated, the
analyzer will allow all read functions to read normally. If
an attempt is made to change a value, LOC will display
followed by the Numeric Display ready for the code to
be entered. A proper code will unlock the analyzer and
the analyzer will return to the last function attempted.
Any incorrect value will result in bAd briefly displaying.
The analyzer will then return to numeric display and
await the entry of the code. Once unlocked, the analyz­er will allow access to all functions until the analyzer is
either powered down or no keystrokes are made for a
period of 2 minutes. If the code should be forgotten,
pressing and holding the ACCESS key for 5 seconds
will result in display of the code. Releasing the
ACCESS key, then pressing ENTER will unlock the
analyzer.

6.1.1 Keyboard Security (COd).

1. Enter Set Mode by pressing ACCESS key twice.

2. SCROLL (Ï) until COd appears on the display.

3. Press SELECT.

4. SCROLL (Ï) and SHIFT (Í ) to display the
desired value, then ENTER it into memory.

NOTE

Entering 000 disables the keyboard secu­rity.

NOTE

Security feature will not activate until 2 min­utes without keyboard activity or power is
removed from the analyzer then restored.

MODEL 1054B DC SECTION 6.0

KEYBOARD SECURITY

SECTION 6.0

KEYBOARD SECURITY

30

7.1 THEORY OF OPERATION. This section is a gen-

eral description of how the analyzer operates. This
section is for those users who desire a greater under­standing of the analyzer’s operation.

Utilizing a square wave measurement circuit for
improved linearity and accuracy, the Model 1054B DC
measures the absolute conductivity/resistivity of the
measured process. The analyzer then references the
conductivity/resistivity to 25°C by accurately measur­ing the process temperature by means of a Pt-100 or
Pt-1000 RTD located in the cell.

It is commonly known that in measuring the resistivity or
conductivity of ultrapure water, temperature compensa­tion is very critical. The temperature coefficient of ultra­pure water depends both on the temperature and the
resistivity/conductivity of the water being tested. Figure
7-1 illustrates the relationship between the resistance
and the temperature of pure water from 2 megohm-cm
to 18 megohm-cm quality.

The Model 1054B DC incorporates a 100 ohm or 1000
ohm RTD for temperature measurement, and is capable
of measuring and displaying temperature accurately to
within ±0.1°C. Temperature measurement is resolved to
.025°C and this precise measurement is used in the ana­lyzer’s temperature compensation calculation.

For neutral salts the equation that the analyzer utilizes
to calculate temperature compensation is derived from
the equivalent conductance of the separate ions in the
total solution system. The equation is the form of:

(Q

S

- QW)

C

t

= C25QS -

(18.25)

Where Ct= Specific conductivity at temperature

C25= Conductivity at 25°C
QS= Temperature coefficient of neutral salt
QW= Temperature coefficient of pure water

This formula takes into account the temperature coeffi­cient of the neutral salt component and the pure H2O
component and separately calculates the conductive
contribution of the solvent and solute.

This temperature compensation method not only
achieves the same accuracy for water over the range
of 15°C to 60°C as the General Electric equation, but
also extends the accuracy from 0°C to 100°C.

For cation resin columns, a formula specific to the
characteristics of pure water contaminated with minute
quantities of hydrochloric acid is used to provide accu­racy for cation solutions up to 9.99 µS/cm over a tem­perature range of 0°C to 100°C.

MODEL 1054B DC SECTION 7.0

THEORY OF OPERATION

SECTION 7.0

THEORY OF OPERATION

FIGURE 7-1 Resistance vs. Temperature

31

MODEL 1054B DC SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

Display Description

EEP EEPROM write error (bad EEPROM chip).
CHS ROM failure (check sum error) (bad ROM chip).

COP Computer not operating properly.
1tcH High temperature compensation error - Cell 1.
1tcL Low temperature compensation error - Cell 1.

FAC Factory calibration required.
2tcH High temperature compensation error - Cell 2.
2tcL Low temperature compensation error - Cell 2.
1CLH Overange - Cell 1.
2CLH Overange - Cell 2.

8.1 DIAGNOSTICS. The Model 1054B analyzer has a
diagnostic feature which automatically searches for
fault conditions that would cause an error in the meas­ured conductivity value. If such a condition occurs, the
current output and relays will act as configured in
default and the fault flag and display will flash. A fault
code mnemonic will display at frequent intervals. If
more than one fault condition exists, the display will
sequence the faults at one second intervals. This will
continue until the cause of the fault has been correct­ed. Display of fault mnemonics is suppressed when in
Set Mode. Selecting the SHO item will display a history
of the two most recent fault conditions unless SHO was
cleared (Refer to Section 4.6).

NOTE

If the analyzer is in hold and a fault occurs,

the mnemonic HLd will display during the

fault sequence.

8.1.1 Fault Mnemonics. Table 8-1 lists the fault
mnemonics and describes the meaning of each.

8.1.2 Temperature Compensation. Table 8-2 is a
ready reference of RTD resistance values for a Pt­1000 RTD at various temperatures. For Pt-100 values
divide by 10. These are used for test and evaluation of
the sensor.

NOTE

Ohmic values are read across the T.C.
element and are based on the stated
values (R

O

±0.12%). Allow enough time
for the T.C. element to stabilize to the
surrounding temperature. Each 1°C
change corresponds to a change of 3.85
ohms (for a Pt-1000 RTD) or .385 ohms
(for a Pt 100 RTD).

TABLE 8-1. Fault Mnemonics

TABLE 8-2. RTD Resistance Values

Temperature Resistance

0°C 1000 ohms

10°C 1039.0 ohms
20°C 1077.0 ohms
25°C 1096.2 ohms
30°C 1116.7 ohms
40°C 1155.4 ohms

50°C 1194.0 ohms

60°C 1232.4 ohms
70°C 1270.7 ohms
80°C 1308.9 ohms
90°C 1347.0 ohms

100°C 1385.0 ohms

110°C 1422.9 ohms
120°C 1460.6 ohms
130°C 1498.2 ohms
140°C 1535.8 ohms

150°C 1573.1 ohms

160°C 1610.4 ohms
170°C 1647.6 ohms
180°C 1684.6 ohms
190°C 1721.6 ohms

200°C 1758.4 ohms

32

MODEL 1054B DC SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

8.2 TROUBLESHOOTING. The Model 1054B analyzer

is designed with the state of the art microprocessor cir­cuitry. This design incorporates programmed features
that provide constant monitoring for fault conditions,
and the reporting of these faults via Mnemonics on the
instrument display screen. This aids in determining
where to start checking for the cause of failures, and in
some instances, the ability to see changes that can be
used to predict future degeneration of assemblies
before their complete failure.

8.2.1 Installation Failure. After completion of installa­tion the instrument should be checked for operation.
Normally this would consist of Powering up the instru­ment and checking for:

1. A self diagnostic fault display. Refer to Table 8-1
for brief description of problem indicated by
mnemonic. Table 8-3 provides a more compre­hensive problem explanation and actions that may
help solve the problem.

2. A conductivity reading that is approximately cor­rect. (Depending upon sensor installation in either
air or process.) Refer to Section 8.2.3 for sensor
checks.

3. Pressing several of the keypads to determine
whether programming appears to be operational.
Table 8-3 explains problems and actions that may
be helpful in solving them.

4. Checking output for 4-20 mA output current.

8.2.2 After Operation. Troubleshooting this instrument

after previous operation should follow normal trou­bleshooting procedures. Check display . If power is O.K.
the display mnemonic will direct you to the basic area
of malfunction (Sensor, Printed Circuit Boards, calibra­tion, or temperature compensation).

Use Tables 8-1 and 8-3 to determine area, possible
problem and actions to take to remedy fault.

Faulty display. If a faulty display is suspected, enter
the SET menu and scroll through to the dtS option.
This option will activate all display segments. See
Figure 3-5.

Output Circuit Testing. To check for problems in the
output circuit, bypass the sensor input and analyzer
calculations by setting a known output current and
checking item driven by output current and checking
the operation of valves, pumps, recorders, etc. For
directions on how to set output current, refer to Section

4.9.

8.2.3 Sensor Troubleshooting. In addition to the sen­sor fault mnemonics, the analyzer can display informa­tion pertinent to determining if sensor has become
coated, or if there is a conductivity versus temperature
problem, or an application problem.

Sensor Coated. Conductivity cells used in pure water
service require little maintenance. As with any type of
in-line instrumentation, the cell should be inspected
periodically. During these inspections, the following
items should be checked:

NOTE

After initial installation or any cleaning pro­cedure, the conductivity cell will require I to
2 days after insertion into the ultrapure
water stream before accurate readings
may be obtained. In many cases, the full

0.5% system accuracy will not be obtain­able until the cell has remained in the ultra­pure water stream a full 5 days.

1. Are the cell cable and connections in good condi­tion? Is there evidence of corrosion?

2. Is the cell bent or dented? Blow dry with com­pressed air and inspect carefully for physical dam­age.

3. Is there any extraneous material lodged between
the electrodes? The cell is easily inspected and
can be cleaned with a blast of compressed air or
by holding it holder hot tap water. Hot tap water
may be run through the cell by slipping a piece of
rubber tubing over the end of the cell and allowing
the water to flow through the cell and out the vent
holes.

For extremely dirty cell, see step 4.

33

MODEL 1054B DC SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

4. If the conductivity cell electrodes have become
extremely dirty or fouled, chemical cleaning may
become necessary. Warm 10% solutions of either
hydrochloric acid or sodium hydroxide may be
used depending on the soil. Do not keep cells in
these solutions for longer than 15 minutes. Do
not have the cell connected during this proce­dure. Gentle brushing with a bristle brush such
as a tooth brush may also be employed.

After chemical cleaning, the cell must be thoroughly
rinsed in running tap water to remove strong electrolyte
which may remain on the electrodes, insulators and
electrode holders. This rinsing operation should con­tinue for approximately one half hour. The cell should
then be washed in several changes of distilled or
deionized water over a period of several hours before
being installed.

Absolute Conductivity. As an aid in determining
whether a problem exists in the conductivity section of
the sensor or analyzer, or the temperature compensat­ing circuits, the absolute conductivity (the uncorrected
conductivity value, without temperature compensation)
of the process can be displayed. To do so:

1. Press the ACCESS key twice.

2. SEt will be displayed briefly followed by 1Cin.

3. SELECT 1Cin to read the absolute conductivity of
cell 1.

4. SCROLL (

Ï

) to display 2Cin and SELECT to read

the absolute conductivity of cell 2.

5. To return to normal operation, press PV

Temperature Sensor Accuracy. If the temperature
sensor in the conductivity sensor is suspect, measur­ing the resistance along the T.C. element and compar­ing the corresponding temperature reading can be
used in the evaluation of the sensor. Allow enough
time for the T.C. element to stabilize to the surrounding
temperature, Each 1°C change corresponds to a
change of 03.85 ohms.

8.2.4 Subassembly Replacement Considerations.
CPU Board Replacement. If a problem exists on the

CPU board, and replacement is required, specific pro­cedures included with the new board must be followed
or the microprocessor will be improperly programmed.
Should this occur, it will be necessary to return the
analyzer to the factory for reprogramming.

Power Board Replacement. if it becomes necessary
to replace the power board, the CPU will need to be
recalibrated following specific procedures included
with the power board Failure to follow these proce­dures exactly will cause the microprocessor to be
improperly programmed and require the return of the
analyzer to the factory for reprogramming.

34

MODEL 1054B DC SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

TABLE 8-3. Troubleshooting Guide

SYMPTOM PROBLEM ACTION

Analyzer value not the same 1. Reference analyzer incorrect. 1. Recalibrate reference analyzer
as reference analyzer. 2. Unclear what is correct. 2. Bench test analyzer.

3. Analyzer out of calibration. 3. Recalibrate per Start-up and
Calibration Section.

Fault code 1tcH/1tcL (cell 1). 1. Miswire. 1. Check wiring between the

2tcH/2tcL (cell 2). sensor and analyzer.

2. Open or shorted RTD. 2. Replace sensor.

Fault code 1CLH (cell 1). 1. Process conductivity 1. Check purity system.

2CLH (cell 2). too high for sensor in use.

Process contamination.

Near zero reading 1. Open wire between sensor 1. Repair wire/check connection.

and analyzer.

2. Coated/fouled sensor. 2. Clean replace/sensor.

Fault code EEP. 1. Defective EEPROM. 1. Replace CPU PCB.
Fault code CHS. 1. Defective CPU. 1. Replace CPU PCB.
No alarm relay closure. 1. Defective power card. 1. Replace power PCB.

2. Defective CPU. 2. Replace CPU PCB.

No output current. 1. Defective power board. 1. Replace power PCB.

2. Miswired. 2. Check for short.

Low output current. 1. Circuit loading with excessive 1. Consult output loading limits

resistance on output. Model 1054B R specifications

(600 ohms max load).

Zero conductivity reading. 1. Sensor miswired. 1. Repair wire/connection.

2. Solids coating sensor. 2. Clean sensor.

3. Open wire in sensor. 3. Replace sensor or tube.

HP5 1. Switch on CPU board in 1. Slide switch on CPU

wrong position. toward front of instrument.

35

FIGURE 8-1. Simulate Conductivity Input

MODEL 1054B DC SECTION 8.0

DIAGNOSTICS AND TROUBLESHOOTING

8.2.5 Instrument Electronic Check. This procedure

will allow the operation of the analyzer to be evaluated
by simulating a known conductivity input.

1. Disconnect the conductivity sensor input leads
from TB2-1, 2, 3, 5, 6, and 7. Install a decade box
or resistor leads to TB2-1 and TB2-2 to simulate
“CELL1” input resistance, and install a decade box
or resistor leads to TB2-5 and TB2-6 to simulate
“CELL2” input resistance. Install leads of a 1100
ohm resistor to TB2-2 and TB2-3 for temperature
resistance of “CELL1” and a second 1100 ohm
resistor’s leads to TB2-6 and TB2-7 for tempera­ture resistance of “CELL2” as shown in Figure 8-1.

2. Calibrate temperature to 25°C (see Section 5.1.3).

3. Set cell constant to 1.0 (see Section 5.1.1).

4. To simulate a desired conductivity input, an appro­priate resistance value may be calculated by
Formula or selected from the conductivity (µmhos)
vs resistance (ohms) table (see Figure 8-1).

5. Simulate conductivity input and evaluate the ana­lyzer response.

8.3 INSTRUMENT MAINTENANCE. To maintain the

appearance and extend the life of the enclosure, it
should be cleaned on a regular basis using a mild soap
and water solution followed by a clean water rinse.

Formula:

1

Conductivity =

____________

X 1,000,000

Resistance

Table:

Conductivity (µmhos) vs Resistance (kilohms)

5 200,000

10 100,000

100 10,000

1,000 1,000
10,000 100
20,000 50

1100 ohms
Resistor

Decade Box
or Resistor

Decade Box
or Resistor

1100 ohm
Resistor

36

MODEL 1054B DC SECTION 9.0

RETURN OF MATERIAL

SECTION 9.0

RETURN OF MATERIAL

9.1 GENERAL.

To expedite the repair and return of instruments, proper
communication between the customer and the factory
is important. Before returning a product for repair, call
1-949-757-8500 for a Return Materials Authorization
(RMA) number.

9.2 WARRANTY REPAIR.

The following is the procedure for returning instru­ments still under warranty:

1. Call Rosemount Analytical for authorization.

2. To verify warranty, supply the factory sales order
number or the original purchase order number. In
the case of individual parts or sub-assemblies, the
serial number on the unit must be supplied.

3. Carefully package the materials and enclose your
“Letter of Transmittal” (see Warranty). If possible,
pack the materials in the same manner as they
were received.

4. Send the package prepaid to:
Rosemount Analytical Inc., Uniloc Division

Uniloc Division
2400 Barranca Parkway
Irvine, CA 92606

Attn: Factory Repair

RMA No. ____________

Mark the package: Returned for Repair

Model No. ____

9.3 NON-WARRANTY REPAIR.

The following is the procedure for returning for repair
instruments that are no longer under warranty:

1. Call Rosemount Analytical for authorization.

2. Supply the purchase order number, and make
sure to provide the name and telephone number
of the individual to be contacted should additional
information be needed.

3. Do Steps 3 and 4 of Section 9.2.

NOTE

Consult the factory for additional informa­tion regarding service or repair.

WARRANTY

Seller warrants that the firmware will execute the programming instructions provided by Seller, and that the Goods manufactured
or Services provided by Seller will be free from defects in materials or workmanship under normal use and care until the expira­tion of the applicable warranty period. Goods are warranted for twelve (12) months from the date of initial installation or eighteen
(18) months from the date of shipment by Seller, whichever period expires first. Consumables, such as glass electrodes,

membranes, liquid junctions, electrolyte, o-rings, catalytic beads, etc., and Services are warranted for a period of 90
days from the date of shipment or provision.

Products purchased by Seller from a third party for resale to Buyer ("Resale Products") shall carry only the warranty extended by
the original manufacturer. Buyer agrees that Seller has no liability for Resale Products beyond making a reasonable commercial
effort to arrange for procurement and shipping of the Resale Products.

If Buyer discovers any warranty defects and notifies Seller thereof in writing during the applicable warranty period, Seller shall, at
its option, promptly correct any errors that are found by Seller in the firmware or Services, or repair or replace F.O.B. point of man­ufacture that portion of the Goods or firmware found by Seller to be defective, or refund the purchase price of the defective por­tion of the Goods/Services.

All replacements or repairs necessitated by inadequate maintenance, normal wear and usage, unsuitable power sources, unsuit­able environmental conditions, accident, misuse, improper installation, modification, repair, storage or handling, or any other
cause not the fault of Seller are not covered by this limited warranty, and shall be at Buyer's expense. Seller shall not be obli­gated to pay any costs or charges incurred by Buyer or any other party except as may be agreed upon in writing in advance by
an authorized Seller representative. All costs of dismantling, reinstallation and freight and the time and expenses of Seller's per­sonnel for site travel and diagnosis under this warranty clause shall be borne by Buyer unless accepted in writing by Seller.

Goods repaired and parts replaced during the warranty period shall be in warranty for the remainder of the original warranty peri­od or ninety (90) days, whichever is longer. This limited warranty is the only warranty made by Seller and can be amended only
in a writing signed by an authorized representative of Seller. Except as otherwise expressly provided in the Agreement, THERE
ARE NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FIT­NESS FOR PARTICULAR PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR SERVICES.

RETURN OF MATERIAL

Material returned for repair, whether in or out of warranty, should be shipped prepaid to:

Emerson Process Management

Liquid Division

2400 Barranca Parkway

Irvine, CA 92606

The shipping container should be marked:

Return for Repair
Model

_______________________________

The returned material should be accompanied by a letter of transmittal which should include the following information (make a
copy of the "Return of Materials Request" found on the last page of the Manual and provide the following thereon):

1. Location type of service, and length of time of service of the device.

2. Description of the faulty operation of the device and the circumstances of the failure.

3. Name and telephone number of the person to contact if there are questions about the returned material.

4. Statement as to whether warranty or non-warranty service is requested.

5. Complete shipping instructions for return of the material.
Adherence to these procedures will expedite handling of the returned material and will prevent unnecessary additional charges

for inspection and testing to determine the problem with the device.

If the material is returned for out-of-warranty repairs, a purchase order for repairs should be enclosed.

Credit Cards for U.S. Purchases Only.

The right people,
the right answers,
right now.

ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE

http://www.raihome.com

Emerson Process Management
Liquid Division

2400 Barranca Parkway
Irvine, CA 92606 USA
Tel: [phone]
Fax: [phone]

http://www.raihome.com

© Rosemount Analytical Inc. 2003