Manning Systems EC-F9-NH3 Operating Manual

Ammonia-Specific Electrochemical Gas Sensor/Transmitter

Manning EC-F9-NH

Instruction and Installation Manual

07/09

Release E Draft

Honeywell Confidential & Proprietary

This work contains valuable, confidential, and proprietary information. Disclosure, use

or reproduction outside of Honeywell Inc. is prohibited except as authorized in writing.

This unpublished work is protected by the laws of the United States and other countries.

Notices and Trademarks

Release E July 2009

While this information is presented in good faith and believed to be accurate, Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customers.

In no event is Honeywell liable to anyone for any indirect, special or consequential damages. The information and specifications in this document are subject to change without notice.

Manning is a registered trademark of Honeywell International Inc.

Other brand or product names are trademarks of their respective owners.

Honeywell Analytics 405 Barclay Blvd. Lincolnshire, IL 60069 USA

1-800-538-0363

About This Document

World Wide Web

The following Honeywell web sites may be of interest.

Honeywell Organization WWW Address (URL)

Corporate www.honeywell.com

Honeywell Analytics www.honeywellanalytics.com

Manning Gas Detection www.manningsystems.com

Telephone

Organization Phone Number

United States Honeywell Analytics Inc. 1-800-538-0363 1-913-712-5576 1-913-712-5580 Fax

Canada Honeywell Analytics Inc. 1-888-749-8878

Europe Honeywell PACE +44 (0)1202 676161

Asia Pacific Honeywell Asia Pacific Inc. +82 (0)2 2025 0307

Middle East Honeywell Analytics Inc. +971 4 3458 338

Sales Information

Symbol Definitions

The following table lists those symbols used in this document to denote certain conditions.

Symbol Definition

ATTENTION: Identifies information that requires special consideration.

TIP: Identifies advise or hints for the user, often in terms of performing a task.

REFERENCE-EXTERNAL: Identifies an additional source of information outside of

this bookset.

REFERENCE-INTERNAL: Identifies an additional source of information within this bookset.

indicates a situation which, if not avoided, may result in equipment or work (data) on

CAUTION

the system being damaged or lost, or may result in the inability to properly operate the process.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices. CAUTION symbol on the equipment refers the user to the product manual for additional information. The symbol appears next to required information in the manual.

Contents Serial number:

Section Title Page

1 System Description 6

Specifications 6

2 Installation 7

A Locating the Manning EC-F9-NH

B Wiring 9

3 Operation 11

A Start-up Procedures 11

B Pushbutton Operation and LED Indicators 11

LED Blink Sequence 11

LED Sequence Indicator and Operation Summary 13 SensorCheck

4/20 mA Loop Check 14

Simple Zero Test 15

Span Calibration Mode 15

Modbus Address Change 17

C Troubleshooting 18

D Maintenance 19

EC Cell Replacement Procedure 19

E Replacement Parts 19

Sensor 7

4 Limited Warranty 20

Introduction

This manual has been prepared to help in the use and installation of the Manning EC-F9-NH3 (ElectrochemicalAmmonia) Sensor. This manual will convey the operating principles of the sensor, ensure proper installation, and demonstrate start-up and routine maintenance procedures for the sensor.

ATTENTION: This manual must be carefully followed by all individuals who have or will have the responsibility for using or servicing the sensor. Warranties made by Honeywell Analytics with respect

to this equipment will be voided if the equipment is not used and serviced in accordance with the instructions in this manual. If in doubt about a procedure, please contact Honeywell Analytics before proceeding.

1 System Description

The Manning EC-F9-NH3 Sensor is a three-wire, 4/20 mA sensor, with optional RS-485 Modbus RTU communication, designed for low-level ammonia detection available in ranges of 0—100 ppm, 0—250 ppm, 0—500 ppm, and 0—1,000 ppm.

The unit exhibits excellent accuracy and precision, with negligible response to common interference gases and dramatic changes in relative humidity. Reliable trip levels as low as 25 ppm can be expected with the 0—100 ppm sensor. The unit exhibits extremely high reliability with no moving parts.

Monitoring equipment must be configured to indicate a fault if the signal is less than 1.5 mA. All signals over 20 mA must be considered a high gas concentration.

Specifications

Method: Electrochemical (diffusion)

Ranges: 0—100 ppm (standard)

0—250 ppm

0—500 ppm

0—1,000 ppm (requires High-Range cell)

Output: Isolated 4/20 mA, 700 ohms max at 24 VDC. Signal output reduces to 0.5 mA to indicate a fault condition.

RS-485 Protocol: MODBUS RTU

Accuracy: ± 5% generally, but limited by available

calibration gas accuracy

Repeatability: ± 2% full scale

Response Time: T

= 1 second for concentrations >1% NH

100

Sensor Viability Test: An internal microprocessor determines the sensor’s electrical viability every 24 hours (SensorCheck test fail, a 0.5 mA signal will indicate a fault.

A red LED on the circuit board will indicate if a sensor is degraded electrically, dried up or disconnected.

= 10 seconds,

). Should the electrical viability

4/20 mA Loop Viability Test: Internal monitoring of 4/20 mA output impedance

Operating Humidity: 5—100% RH (condensing).

ATMOS equipped

enviro-adaptive technology option required for condensing conditions or refrigerated areas, and all outdoor applications.

Operating Temperatures: —50

ATMOS equipped

enviro-adaptive technology

F to +120o F.

option required for refrigerated areas or outdoors.

Sensor Pressure Limits: 0—10 PSIG

Power Source: 24 VDC (recommended), 0.5 amp

max. 14—26 VDC acceptable. NOTE: If sensor is

ATMOS equipped

, contact Honeywell Analytics if supply voltage is less the 16 VDC.

Cable Recommendations:

4/20 output: #18/3 shielded cable (Belden #8770 or equal), cable runs <1,500 feet.

Modbus RTU (RS-485)

: For communication cable, use 24 AWG twisted pair, shielded (Belden #9841 or equal), cable runs up to 2,000 feet. For power cable, use 14 AWG (Belden #5100UE or equal), cable runs up to 1,000 feet, for each power supply. Larger power cable and/or additional power supplies may be required for longer cable runs and/or increased number of sensors. Due to variables such as sensor current draw, line loss, and cable size, contact Honeywell Analytics for help with power requirements.

Gas Sampling: Diffusion method is standard.

Enclosure: NEMA 1, gasketed, #16-gauge steel

(standard). Stainless steel or explosion-proof designs, including modified enclosures for low temperatures, ventilation ducts, etc., are available (contact Honeywell Analytics).

NOTE: The standard EC is for use in nonclassified areas only.

Weight: 3 lbs.

Dimensions: 6" high x 4" wide x 3.5" deep

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