Critical Environment Technologies LPT-P, LPT-M Operation Manual

Operation Manual

www.critical-environment.com

LPT-P Digital Car Park Transmitter

Rev. B | 2018.08

LPT-P - Operation Manual Rev. B | 2018.08

TABLE OF CONTENTS

1 POLICIES ..........................................................................................................5

1.1 Important Note ................................................................................................5

1.2 Warranty Policy ................................................................................................6

1.3 Service Policy ...................................................................................................6

1.4 Copyrights and Registered Trademarks ............................................................7

1.5 Disclaimer ........................................................................................................7

1.6 Revisions ..........................................................................................................8

2 INTRODUCTION .............................................................................................9

2.1 General Description ..........................................................................................9

2.2 Key Features ...................................................................................................10

3 INSTRUMENT SPECIFICATIONS .................................................................11

3.1 Technical Speci cations ..................................................................................11

3.2 Internal Sensor Gas Types ...............................................................................13

3.3 ESH-A Remote Sensor Gas Types ....................................................................13

3.4 Enclosure Dimensions ....................................................................................14

4 INSTRUMENT FEATURES .............................................................................15

4.1 Exterior Enclosure ..........................................................................................15

4.2 Interior System Layout ...................................................................................17

5 INSTALLATION ..............................................................................................18

5.1 General Safety Warnings ................................................................................19

5.2 Protection Against Electrical Risks ..................................................................19

5.3 Protection Against Mechanical Risks ..............................................................20

5.4 Mounting the Transmitter ..............................................................................20

5.4.1 Wet Environment Considerations ....................................................................21

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5.4.2 EMI and RF Interference Considerations ..........................................................21

5.4.3 Mounting Height (Sensor Dependent) ............................................................22

5.5 Enclosure Mounting Components ..................................................................23

5.5.1 Enclosure Base ................................................................................................23

5.5.2 Enclosure Bottom ............................................................................................24

5.6 Wiring Connections ........................................................................................24

5.6.1 Power & Output Connections ..........................................................................25

5.6.2 ESH-A Remote Sensor Wiring Connection ........................................................26

5.6.3 Wire Gauge vs Run Length...............................................................................26

6 SYSTEM OPERATION & CONFIGURATION ...............................................27

6.1 Navigating the Menu Structure ......................................................................27

6.2 Accessing the Menu with Passcodes ...............................................................28

6.3 Power Up and Warm-up .................................................................................29

6.4 Display Select .................................................................................................30

6.5 Set LCD Display Contrast Level ........................................................................31

6.6 Fault Detection...............................................................................................31

6.7 Modbus® Settings ..........................................................................................32

6.7.1 Change Modbus® ID ........................................................................................32

6.7.2 Change Modbus® Baud Rate ...........................................................................33

6.7.3 Modbus® Holding Registers ............................................................................34

6.8 Setting Channel Alarm Setpoints ...................................................................34

6.8.1 Setting the Low Alarm Setpoint ......................................................................34

6.8.2 Setting the Mid Alarm Setpoint ......................................................................35

6.8.3 Setting the High Alarm Setpoint .....................................................................36

6.8.4 Setting Hysteresis............................................................................................36

6.9 Enable / Disable Channels ..............................................................................36

6.10 Test Gas Reading Response / Send Test Reading to Controller.......................37

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7 CALIBRATION ................................................................................................39

7.1 Calibration Speci cations ...............................................................................39

7.1.1 Gas ..................................................................................................................39

7.1.2 Regulators & Flow ...........................................................................................39

7.1.3 Adapters..........................................................................................................39

7.1.4 Calibration Frequency .....................................................................................40

7.1.5 Gas Testing Frequency (Bump Testing) ............................................................40

7.1.6 Non-Intrusive Calibration ................................................................................40

7.2 Calibrating the Internal Sensor(s) ..................................................................41

7.3 Troubleshooting Calibration ...........................................................................43

7.3.1 Calibration Adapter Plug .................................................................................44

7.3.2 Zero Calibration Shift .......................................................................................44

7.3.3 Zero - Requires Override ..................................................................................44

7.3.4 Span - Requires Override .................................................................................44

7.3.5 Fault Reading ..................................................................................................45

7.3.6 Calibration Failure ...........................................................................................45

7.4 Calibrating an ESH-A Remote Sensor Connected to an LPT-P .........................46

7.4.1 Zero and Span Calibration of a Responsive ESH-A Remote Sensor ...................46

7.4.2 Zero Calibration of a New or Replacement ESH-A Remote Sensor ....................46

8 ACCESSORIES ...............................................................................................47

8.1 Splash Guard ..................................................................................................48

8.2 Magnetic Wand ..............................................................................................48

8.3 Metal Protective Guard ..................................................................................49

8.4 Calibration Kit ................................................................................................49

9 MAINTENANCE .............................................................................................50

10 TROUBLE SHOOTING ................................................................................50

Rev. B | 2018.08 LPT-P- Operation Manual

1 POLICIES

1.1 Important Note

Read and understand this manual prior to using this instrument. Carefully read the warranty policy, service policy, notices, disclaimers and revisions on the following pages.

This product must be installed by a quali ed electrician or factory trained technician and according to instructions indicated in this manual. This instrument should be inspected and calibrated regularly by a quali ed and trained technician. For more information, refer to Section 7 Calibration and Section 9 Maintenance of this manual.

This instrument has not been designed to be intrinsically safe. For your safety, do not use it in classi ed hazardous areas (explosion-rated environments).

INSTRUMENT SERIAL NUMBER:

______________________________________________________

PURCHASE DATE:

______________________________________________________

PURCHASED FROM:

______________________________________________________

LPT-P - Operation Manual Rev. B | 2018.08

1.2 Warranty Policy

Critical Environment Technologies Canada Inc. (CETCI), also referred to as the manufacturer,

warrants this instrument, (excluding sensors, battery packs, batteries, pumps and  lters) to be free from defects in materials and workmanship for a period of two years from the date of purchase

from our facility. The sensors have a warranty period of one year on a pro-rated basis from the date of purchase from our facility. If the product should become defective within this

warranty period, we will repair or replace it at our discretion.

The warranty status may be a ected if the instrument has not been used and maintained per the instructions in this manual or has been abused, damaged, or modi ed in any way. This instrument is only to be used for purposes stated herein. The manufacturer is not liable for auxiliary interfaced equipment or consequential damage.

Due to ongoing research, development, and product testing, the manufacturer reserves the right to change speci cations without notice. The information contained herein is based on data considered accurate. However, no warranty is expressed or implied regarding the accuracy of this data.

All goods must be shipped to the manufacturer by prepaid freight. All returned goods must be pre-authorized by obtaining a Returned Merchandise Authorization (RMA) number. Contact the manufacturer for a number and procedures required for product transport.

1.3 Service Policy

CETCI maintains an instrument service facility at the factory. Some CETCI distributors / agents may also have repair facilities; however, CETCI assumes no liability for service performed by anyone other than CETCI personnel.

Repairs are warranted for 90 days after date of shipment (sensors have individual warranties). Should your instrument require non-warranty repair, you may contact the distributor from whom it was purchased or you may contact CETCI directly.

Rev. B | 2018.08 LPT-P- Operation Manual

Prior to shipping equipment to CETCI, contact our o ce for an RMA #. All returned goods must be accompanied with an RMA number.

If CETCI is to do the repair work, you may send the instrument, prepaid, to:

Attention: Service Department Critical Environment Technologies Canada Inc. Unit 145, 7391 Vantage Way Delta, BC, V4G 1M3

Always include your Returned Merchandise Authorization (RMA) number, address, telephone number, contact name, shipping / billing information, and a description of the defect as you perceive it. Pack the equipment well (in its original packing if possible), as we cannot be held responsible for any damage incurred during shipping to our facility. You will be contacted with a cost estimate for expected repairs, prior to the performance of any service work.

For liability reasons, CETCI has a policy of performing all needed repairs to restore the instrument to full operating condition.

1.4 Copyrights and Registered Trademarks

This manual is subject to copyright protection; all rights are reserved. Under international and domestic copyright laws, this manual may not be copied or translated, in whole or in part, in any manner or format, without the written permission of CETCI.

Modbus® is a registered trademark of Gould Inc. Corporation.

1.5 Disclaimer

Under no circumstances will CETCI be liable for any claims, losses or damages resulting from or arising out of the repair or modi cation of this equipment by a party other than CETCI service

LPT-P - Operation Manual Rev. B | 2018.08

technicians, or by operation or use of the equipment other than in accordance with the printed instructions contained within this manual or if the equipment has been improperly maintained or subjected to neglect or accident. Any of the forgoing will void the warranty.

Under most local electrical codes, low voltage wires cannot be run within the same conduit as line voltage wires. It is CETCI policy that all wiring of our products meet this requirement.

It is CETCI policy that all wiring be within properly grounded (earth or safety) conduit.

1.6 Revisions

This manual was written and published by CETCI. The manufacturer makes no warranty or

representation, expressed or implied including any warranty of merchantability or  tness for purpose, with respect to this manual.

All information contained in this manual is believed to be true and accurate at the time of printing. However, as part of its continuing e orts to improve its products and their documentation, the manufacturer reserves the right to make changes at any time without notice. In addition, due to improvements made to our products, there may be information in this manual that does not exist in the version of the product the user has. Should you detect any error or omission in this manual, or should you want to inquire regarding upgrading the device’s  rmware, please contact CETCI at the following address:

Critical Environment Technologies Canada Inc.

Unit 145, 7391 Vantage Way, Delta, BC, V4G 1M3, Canada Toll Free: +1.877.940.8741 Telephone: +1.604.940.8741 Fax: +1.604.940.8745 Email: marketing@cetci.com Website: www.critical-environment.com

Rev. B | 2018.08 LPT-P- Operation Manual

In no event will CETCI, its o cers or employees be liable for any direct, special, incidental or

consequential damages resulting from any defect in any manual, even if advised of the possibility of such damages.

2 INTRODUCTION

2.1 General Description

Thank you for purchasing our LPT-P Digital Car Park Transmitter.

The LPT-P is an economical, digital transmitter with up to three gas channels, designed to be part of a gas detection system for enclosed parking garages / car parks and auto repair shop applications.

Each LPT-P transmitter can be con gured as:

• A single channel gas detector with an internal electrochemical Carbon Monoxide (CO) or Nitrogen Dioxide (NO2) sensor

• A dual channel gas detector with an internal electrochemical Carbon Monoxide (CO) and Nitrogen Dioxide (NO2) sensor

• A dual channel gas detector with an internal electrochemical Carbon Monoxide (CO) plus one catalytic ESH-A Remote Sensor

• A dual channel gas detector with an internal Nitrogen Dioxide (NO2) sensor plus one catalytic ESH-A Remote Sensor

• A three channel gas detector with one internal CO sensor, one internal NO2 sensor plus one catalytic ESH-A Remote Sensor

Features include a back lit, LCD digital display with user selectable function, standard Modbus® RS-485 RTU digital output and a standard water / dust tight, corrosion resistant enclosure that is IP54 rated with the factory installed splash guard.The LPT-P comes standard with Modbus® RTU

LPT-P - Operation Manual Rev. B | 2018.08

wide area network (WAN) output to Building Automation System (BAS) or Direct Digital Control (DDC) system.

All LPT-P digital transmitters operate by di usion. The sensors utilized in this device are accurate enough to measure to Occupational Health & Safety (OHS) hazardous levels for toxic gases.

If after reading through the manual, you have any questions, please do not hesitate to contact our service department for technical support.

2.2 Key Features

• Up to 3 sensor con gurations: single or dual internal CO or NO2 sensor and/or one remote catalytic combustible gas sensor

• Modbus® RS-485 RTU serial communications

• Graphic LCD display (user selectable function)

• 4-conductor shielded network wiring (daisy-chain)

• 24 volt DC power

• Standard water / dust tight, corrosion resistant enclosure (drip proof). With optional splash guard installed, the enclosure is IP54 rated.

• RoHS compliant circuit boards

• Auto resetting fuses

Rev. B | 2018.08 LPT-P- Operation Manual

3 INSTRUMENT SPECIFICATIONS

3.1 Technical Speci cations

MECHANICAL

Enclosure

ABS / Polycarbonate, IP54 rated with splash guard installed. Copper coated interior to reduce RF interference.

Weight 400 g / 14 oz

Size 127 mm x 127 mm x 71 mm / 5.0” x 5.0” x 2.8”

ELECTRICAL

Power Requirement

16 - 30 VDC, 3 W, Class 2 24V recommended. See Section 5.6 Wiring Connections.

Wiring (4-wire)

24 VDC, 4-conductor shielded 16 awg stranded within conduit, network wiring (daisy-chain)

Fuses Automatic resetting thermal

USER INTERFACE

Display

Graphic LCD, white border. Text prompting for calibration operation and fault indications. Installer con gurable to suppress

all other displays.

Magnetic Switches

Use a magnetic wand to access menu options and program functions without opening the enclosure.

LPT-P - Operation Manual Rev. B | 2018.08

INPUT / OUTPUT

Modbus® Communication (standard) p/n: LPT-P

Modbus® ID: 100 (default, con gurable) Baud rate: 19,200 (default, con gurable) Data bits: 8 Start bits: 1 Stop bits: 1 Parity: none

Analog signal 4-20 mA input signal from ESH-A Remote Sensor

ENVIRONMENTAL

Operating Temperature -20°C to 40°C (-4°F to 104°F)

Operating Humidity 15 - 90% RH non-condensing

CERTIFICATION

Model: LPT-P-XXX S/N: LPTP1603B00001 Rating: 16-30 VDC, 3W, Class 2

CERTIFIED FOR ELECTRIC SHOCK & ELECTRICAL FIRE HAZARD ONLY. LA CERTIFICATION ACNOR COUVRE UNIQUEMENT LES RISQUES DE CHOC ELECTRIQUE ET D’INCENDIE D’ORIGINE ELECTRIQUE.

Conforms to: CSA-C22.2 No. 205-12 / UL508 (Edition 17):2007 Conforms to: EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010

Rev. B | 2018.08 LPT-P- Operation Manual

Conforms to: FCC. This device complies with part 15 of the FCC Rules, Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

3.2 Internal Sensor Gas Types

Internal Electrochemical Sensors

Part Number Range Lifespan

Carbon Monoxide (CO) LPT-P-TCO 0 - 200 ppm 6 years

Nitrogen Dioxide (NO2) LPT-P-NO2B 0 - 10 ppm 6 years

3.3 ESH-A Remote Sensor Gas Types

ESH-A Remote Sensors Combustible (Catalytic)

Part Number Range Lifespan

Hydrogen (H2) ESH-A-CH2-100 0 - 100% LEL 5 years

Methane (CH4) ESH-A-CCH4-100 0 - 100% LEL 5 years

Propane (C3H8) ESH-A-CC3H8-100 0 - 100% LEL 5 years

LPT-P - Operation Manual Rev. B | 2018.08

3.4 Enclosure Dimensions

Above dimensions are shown with optional splash guard. Without splash guard, thickness is 71 mm (2.8“). The area required for enclosure door to be open 90 degrees is 178 mm (7.0”) or 254 mm (10.0”) for fully open. With the optional splash guard installed, the enclosure is IP54 rated.

NOTE: During calibration the sensor response time will be slower with a splash guard installed.

Rev. B | 2018.08 LPT-P- Operation Manual

4 INSTRUMENT FEATURES

4.1 Exterior Enclosure

•

‘

Side view of LPT-P showing location of Magnetic Sensors.

ARROW UP

ENTER

ARROW DOWN

LPT-P - Operation Manual Rev. B | 2018.08

NUMBER FEATURE FUNCTION

Door Hinge

Secures door to base and allows easy opening and closing

•

Display with white border

Graphic LCD display.

Magnetic Switches (arrow up, Enter, arrow down)

Use a magnetic wand to access menu options and program functions without opening the enclosure

•

Sensor Opening Allows gas di usion into sensor

•

Door Screw Secures door shut

‘

Padlock Opening For security padlock

+ 36 hidden pages

Critical Environment Technologies LPT-P, LPT-M Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual