ECD R350D User Manual

ELECTRO-CHEMICAL DEVICES, INC.

MODEL R350D

REMOTE DISPLAY

INSTALLATION & SERVICE MANUAL

ELECTRO-CHEMICAL DEVICES, INC.

1681 Kettering, Irvine, CA 92614, USA

Tel: [phone], FAX: [phone]

www.ecdi.com

Rev: A - 07/11

Page ii Remote Display

PREFACE

Purchasing products from Electro-Chemical Devices, Inc. provides you with the finest liquid analytical
instrumentation available. If this is your first purchase from ECD, please read this manual before
installing and commissioning your new equipment.

If there are any questions concerning this equipment, please contact your local ECD representative, or
the factory directly at:

Electro-Chemical Devices, Inc.

23665 Via Del Rio

Yorba Linda, CA 92887 USA

Telephone: [phone]

FAX: [phone]

Website: www.ecdi.com

Email: [e-mail]

© 2011 Electro-Chemical Devices, Inc. All rights reserved. No part of this manual may be used or reproduced in any form or by any means, or
stored in a database or retrieval system without prior written permission from Electro-Chemical Devices, Inc. Making copies of any part of this
manual for any purpose other than personal use is a violation of United States copyright laws. Document printed in the United States of
America.

Model R350D Page iii

TABLE OF CONTENTS

PREFACE ....................................................................................................................................................... iii

TABLE OF CONTENTS .................................................................................................................................... iv

WARRANTY ................................................................................................................................................... v

IMPORTANT SERVICE INFORMATION ........................................................................................................... v

UNPACKING THE INSTRUMENT.................................................................................................................... vi

1.0 GENERAL DESCRIPTION ........................................................................................................................... 1

1.1 Features .............................................................................................................................................. 1

1.2 Electrical Specifications ....................................................................................................................... 1

2.0 INSTALLATION ......................................................................................................................................... 3

2.1 MOUNTING ......................................................................................................................................... 3

2.2 WIRING ................................................................................................................................................ 3

2.2.1 Wire Connections: ........................................................................................................................ 3

2.2.2 Jumper Connections .................................................................................................................... 3

3.0 CALIBRATION ....................................................................................................................................... 4

4.0 ENGINEERING DOCUMENTATION ........................................................................................................... 5

4.1 SPECIFICATIONS .................................................................................................................................. 5

Page iv Remote Display

WARRANTY

Electro-Chemical Devices, Inc. (ECD) warrants all products it manufactures to be free from defect in materials and factory
workmanship, and agrees to repair or replace any product that fails to perform, as specified, within one (1) year after date of
shipment. This warranty shall not apply to any product that has been:

1. Subjected to misuse, negligence or accident;

2. Connected, installed, adjusted or otherwise used not in accordance with the instructions furnished by ECD;

3. Repaired, modified or altered by persons not authorized by ECD, resulting in injury to the performance, stability or
reliability of the product.

This warranty is in lieu of any other warranty, expressed or implied. ECD reserves the right to make changes in the design or
construction of its products at any time, without prior notification, and without incurring any obligation to make any changes in
previously delivered products.

Seller’s sole liabilities and the buyer’s sole remedies under this agreement shall be limited to a refund in the purchase price, or
at ECD’s discretion, to the repair or replacement of any product that proves, upon ECD’s examination, to be defective, when
returned to the factory, transportation prepaid by the buyer, within one (1) year of the product’s original shipment date. Seller
shall not be liable for damages consequential or incidental to defects in any product, for failure of delivery in whole or in part,
for injuries resulting from its use, or for any other cause.

This warranty and the writing attached constitute the full understanding of seller and the buyer, and no terms, conditions,
understanding, or agreement purporting to modify or vary the terms hereof shall be binding unless hereafter made in writing
and signed by an authorized official of Electro-Chemical Devices, Inc.

This warranty does not cover pH, ORP or Specific Ion measurement, reference or combination electrodes or electrode
cartridges that have been commissioned in service.

Record Shipment Date, Serial Number and Model number for future reference.

REGISTRATION DATE……………………………

SERIAL NUMBER…………………………………

MODEL NUMBER…………………………………

IMPORTANT SERVICE INFORMATION

Use only factory authorized components for repair. Tampering or unauthorized substitution of components may
adversely affect the operation of this product and may void the warranty.

If service or repair is required, please obtain the serial number(s) or sales order number of the product(s) in
question and contact ECD’s Service Department at:

[phone] (USA/Canada) or [phone]

or email [e-mail]

A Return Material Authorization (RMA) number must be obtained from the service department before returning
any material to ECD. All material returned to ECD shall be shipped prepaid to the factory.

Model R350D Page v

UNPACKING THE INSTRUMENT

Your Electro-Chemical Devices instrument has been carefully packaged to protect it from damage during
shipment and dry storage. Upon receipt please follow the procedure outlined below.

1. Before unpacking, inspect the condition of the shipping container to verify proper handling by
the carrier. If damage is noted, save the shipping container as proof of mishandling for the
carrier.

2. Check the contents of the shipping container with the items and quantities shown on the
packing list. Immediately report any discrepancies to ECD.

3. Save the original packing material until you are satisfied with the contents. In the event the
product(s) must be returned to ECD, the packing material will allow you to properly ship it to
ECD.

4. Familiarize yourself with the instrument before installation, and follow proper installation and
wiring procedures.

Page vi Remote Display

Specification

Minimum

Typical

Maximum

Unit

Accuracy*

0.05

0.1 % (±1 count)

Linearity

±1

Count

1.0 GENERAL DESCRIPTION

The R350D 3 1/2 digit liquid crystal display (LCD) is
calibrated to directly read any process variable
between of -1999 and +1999. The display is loop
powered by any 4 to 20 milliamp loop and
responds to the current being driven through the
loop. The display is housed in a windowed,
corrosion resistant, weatherproof enclosure
(rated NEMA 4x). The reflective LCD does not
wash out, or fade in intense direct light. As the
incident light is increased, the display becomes sharper with greater visibility, making it an ideal
indicating device for outdoor installations.

Access to the wiring is made available through a 1/2-inch conduit knockout in the bottom of the
enclosure. The wiring information is located on the PCB. Mounting hardware is available for wall, pipe
or panel as standard factory installed options. For convenience during installation, the complete
electronic assembly lifts out of the enclosure via the keyed hinging arrangement leaving only the
essentials for mechanical installation.

Although the circuit board has a conformal coating to endure highly corrosive and humid environments,
the wiring port must be sealed to protect the display surface itself. The screws that hold the cover on
the enclosure are captive to the cover, preventing misplacement or loss of small hardware during
routine maintenance.

1.1 Features

• 12.7 mm (0.5") Digit Height

• 4-20mA Loop Powered Indication

• Low Volt Drop

• Programmable Decimal Points

• LED Backlighting (30mA @ 5V typ.)

• Band gap Reference

• Wide Adjustment Range

• Auto-polarity on Display

• IP67 / NEMA 4X Protection via BEZ 700-IP

1.2 Electrical Specifications

Model R350D Page 1

Sample Rate

2.5

Samples/sec

Operating Range

0 (32)

50 (122)

°C (°F)

Temperature Stability

200

ppm/°C

Loop Volt Drop

5

5.6 V

Supply Current

4 20 mA

Backlight Supply Voltage

4.75 5.0 ** VDC

Backlight

Supply Current @ 5VDC

30 50***

mA

Full Scale Reading (20 mA)

0 1999

Count

Offset Adjustment Range

-1999 +1999

Count

* To ensure maximum accuracy, re-calibrate periodically.
** An external series resistor is required if the power supply is above 5V.
*** This specification linearly de-rates to 30mA @ 50°C.

Page 2 Remote Display

2.0 INSTALLATION

Choose a location with easy access and out of
the direct sunlight. Mind the temperature
range when choosing the installation location.

2.1 MOUNTING

The R350 D remote display is designed for
wall mounting using #6 threaded screws. See
attached drawing for the hole dimensions.

2.2 WIRING

Warning!

• The electrical connection must only be carried out by authorized technical personnel.

• Technical personnel must have read and understood the instructions in this manual.

• Ensure that there is no voltage at the power cable before beginning the connection work.

2.2.1 Wire Connections:

1. I+ → positive 4-20 mA current input

2. I- → negative 4-20 mA current input

3. BL+ → 5V Positive power supply connection to the
optional LED backlighting.

4. BL- → 5V Negative power supply connection to the
optional LED backlighting.

The optional LED backlighting requires a separate 5V DC power
supply. Ensure correct polarity when connecting.

2.2.2 Jumper Connections

A Jumper Link is used for setting the decimal point position on the display and for disabling the Offset
adjustment during a Calibration.

1. No Jumper Link on DP 1, 2, or 3 → Display has no decimal point, 1000

2. Jumper Link on DP 1 → Display shows 100.0

3. Jumper Link on DP 2 → Display shows

10.00

4. Jumper Link on DP 3 → Display shows

1.000

5. Jumper Link on LK1 during Span
Calibration only

Model R350D Page 3

3.0 CALIBRATION

The meter is supplied calibrated to read 000
for4mAloop current and 1000 for 20mA.

To re-calibrate, place the Jumper Link across LK1. This
disables the Offset adjustment to enable Span
adjustment to be made first. After Span adjustment is
complete, the Jumper Link is removed and the Offset
adjustment is made. The Jumper Link is then used to
display one of the decimal points if necessary.

Example to re-calibrate: Meter to read 02.00pH at 4mA and 12.00pH at 20mA.

1. Calculate the Span by subtracting the desired reading at 4mA from the desired reading at 20mA:

12.00 - (2.00) = 10.00

2. Remove the Jumper Link used to select the Decimal Point and place it across Link Lk1. Link Lk1 is
located to the left of the screw terminals.

3. Apply 16mA between the + and - screw terminals.

4. Adjust the Span potentiometer so the R350D indicates 1000.

5. Remove Jumper Link Lk1 and place it back on the desired Decimal Point (DP2 in this case).

6. Apply 4mA between the + and - screw terminals.

7. Adjust the Offset potentiometer so the R350D indicates the desired reading at 4mA: 2.00

8. Adjust the Span and Offset as necessary for optimum accuracy. First apply 20mA and adjust
Span until the reading is 12.00. Then apply 4mA and adjust Offset until the reading is 2.00.

Repeat step 8 until correct readings are obtained at 4mAand at 20mA.

Page 4 Remote Display

Specification

Minimum

Typical

Maximum

Unit

Accuracy*

0.05

0.1 % (±1 count)

Linearity

±1

Count

Sample Rate

2.5

Samples/sec

Operating Range

0 (32)

50 (122)

°C (°F)

Temperature Stability

200

ppm/°C

Loop Volt Drop

5

5.6 V

Supply

Current

4 20 mA

Backlight Supply Voltage

4.75 5.0 ** VDC

Backlight Supply Current @ 5VDC

30 50***

mA

Full Scale Reading (20 mA)

0 1999

Count

Offset Adjustment Range

-1999 +1999

Count

4.0 ENGINEERING DOCUMENTATION

4.1 SPECIFICATIONS

* To ensure maximum accuracy, re-calibrate periodically.
** An external series resistor is required if the power supply is above 5V.
*** This specification linearly de-rates to 30mA @ 50°C.

Model R350D Page 5