Ecom J2KNpro Tech Manuale utente

ECOM America Ltd, 1628 Oakbrook Drive, Gainesville, GA 30507

Toll free (877) 326-6411 Phone (770) 532-3280 Fax (770) 532-3620

www.ecomusa.com

Operations Manual

version 3.3.3

Page 2

Page 3

Table of Contents Page(s)

J2KN PRO DESIGN AND HOW IT WORKS

1. Important Things to Remember 4

2. Instrument Design

2.1. J2KN Pro Base Unit 5

2.2. Remote Display Unit 6

2.3. Accessories 7

2.4. Consumables 8

3. Peltier Cooler 9

4. Gas Path Diagram 10

5. Power Supply 11

6. Radio Communication 12

EMISSIONS ANALYSIS AND RECORDING

7. J2KN Pro Start-up 13

8. Emissions Measurement

8.1 Gas Analysis 14-15

8.2 Printing 16

8.3 Soot Test 17

9. Data Logging onto Memory Card 18

10. Averaging Tests 19

11. Draft/Pressure 20

SETTINGS AND DIAGNOSTICS

12. Adjustments 20-21

12.1 Internal 22-23

13. Control 24

J2KN PRO TIPS AND TECHNICAL DATA

14. Maintenance Tips

14.1 Filters 25-26

14.2 Sample Line and Probe 26

14.3 Sensors 26-27

14.4 Printer Paper 27

14.5 Changing the Fuse 27

15. How to Change Sensors

15.1 O2 Sensor 28

15.2 A5F CO Sensor 29-30

15.3 MEM CO Sensor 31

15.4 NO, NO2, SO2, & High CO Sensors 32-34

16. How to Calibrate Sensors 35-36

17. Flow Velocity Measurement (Option) 37

18. Frequently Asked Questions 38-39

19. Technical Data 40

20. Description of Data on Memory Card 41

21. Calculations 42

22. Software Help 43

Page 4

1. Important Things to Remember

The J2KN Pro meets the requirements of EPA

CTM-030 and CTM-034 and ASTM D-6522 test-

ing protocols for portable emission analyzers.

In order to receive accurate measurements,

please allow reading to stabilize

for at least 2 minutes.

The J2KN Pro is not suitable for continuous

emission testing. Please allow at least 10

minutes of fresh air purge for each hour of

testing.

The following substances may cause damage

to the electrochemical sensors:

Cleaning agents

Degreasers

Wax polishes

Adhesives

Formaldehyde

1. Charge the battery after each use

2. Always store unit with fully charged battery

3. Charge the battery at least once a month if

not in frequent use

Page 5

2. Instrument Design

2.1 J2KN Pro Base Unit

Ambient air

temperature

sensor

Thermocouple

connection

Main gas

connection

Draft/Pressure

connection

Draft/Pressure

connection

Water trap

drain hose

connection

On-board

printer

Filter for

IR bench

(if applicable)

Remote Display

Unit

(see next page)

Power cord

socket

Info display

(see 13. Control)

ON / OFF

button

Analogue

inputs

(optional)

Auxiliary

temperature

connections

Nox/SOx

filter for

CO sensor

Pitot tube

connections

(see 17. Flow

Measurement)

Data cable

connection

(used by ECOM

personnel only)

Under case

(optional)

Trolley w/ wheels

(optional)

Heated line power

supply connection

(optional)

Fresh Air

Bypass Switch

(Pro IN only)

Page 6

2.2 Remote Display Unit

Escape

Note: All keypad

buttons are used for

input of numbers 0-9

and decimal point

(press to confirm)

Up/Down/Right/Left

and Scroll

Turn on/off

data logging

Press to add custom

text to printout

(To print real-time

results, simply press

F2)

ON/OFF

Display

Backlight

ON/OFF

Function Keys

(See 8.1 Gas Analysis)

Memory card slot

LCD display

screen

USB

connection

Data cable sockets

(used by ECOM per-

sonnel only)

Air temperature

connection

(not an antenna)

Page 7

2.3 Accessories

Advanced DAS Compliance

Testing Software w/ Bluetooth

Part no. PRT90205

Calibration Gas Kit

Part no. CALGASKIT1

Under Case

Part no. RBR69825

Part no. RBR69829

(Pictured on page 5)

15ft Heated Sample Line

Part no. PRT79525-15

T-Gas Dummy Plug

Part no. CONNECT70280

T-Air Sensor Stick

Part no. TROOMSTICK

Extra Length Probes and Sample Lines

30-foot Standard Sample Line Part no. RBR71278

30-foot Heated Sample Line Part no. PRT79525-30

3-foot Probe Pipe w/ Thermocouple Part no. RBR71267

5-foot Probe Pipe w/ Thermocouple Part no. RBR71271

(Pro Easy)

(Pro IN)

Page 8

2.4 Consumables

PART

PART #

DESCRIPTION

Particulate

Filter (10/PK)

FILTER

75316

10/PK - Particulate

filter located on top of

water trap assembly

In-line Smoke

Filter (1 EACH)

RBR

71185

1 EACH - Standard 3/4"

in-line filter in clear

plastic casing.

Soot Test Paper

(100/PK)

SOOT

71283

100/PK - Round smoke

test filters for smoke

dot test

Soot Test Chart

SOOT

CHART

Soot Test Chart with 0-

9 Grayness Scale

NOx/SOx Filter

Media (1LB)

NOXSOX

79275

1LB - NOx/SOx filter

media refill container

(purple beads)

NOx/SOx

Media Tube

RBR

71286

NOx/SOx Media Tube

Thermal On-

board Printer

Paper (5/PK)

PRT

79274

5/PK - Printer paper for

on-board thermal

printer

J2KN-Pro Main

Battery

PRT

79291

Main Battery

J2KN-Pro

Remote Display

Batteries (3/PK)

PRT

79292

3/PK - Battery Pack for

Remote Display

Page 9

3. Peltier Cooler

J2KN Pro must be plugged in for the

Peltier cooler to operate.

Exhaust gas with a temperature above dew point is intro-

duced into a spiralling gas path with a coated metal surface

of good thermal conductivity. The hot gas radiates its heat to

this metal coating, which is thermally connected to a Peltier

element and a second metal body with cooling ribs and venti-

lation slots. The flow thru the Peltier element creates a heat

transfer from WARM to COLD and this takes the heat from

the metal coating and transfers it to the outer cooling body.

The heat is then released to the surrounding air via a ventila-

tion fan.

Condensation forms when the gas temperature drops be-

low dew point. This moisture drains into the water trap bowl

and is pumped out by a peristaltic pump when the water

reaches a high enough level to link both monitoring elec-

trodes.

The high speed pump allows for enough flow to avoid ex-

cess exposure time between the gas sample and water, so

that drop-out reactions (for example, NO2+H2O > H2NO3) do

not occur, which is necessary for measurement accuracy.

Fan

Peltier

Element

Gas

Outlet

Gas

Inlet

Water Level

Monitoring

Electrodes

Water drain

COLD

Page 10

4. Gas Path Diagram

Response Time

After inserting the probe into the sample gas, there is a

short delay before correct measurement values are dis-

played. This is necessary for the gas to pass through the

sampling system and build up a stable electrochemical reac-

tion at the sensors. This is referred to as response time, and

it usually lasts between 60 and 90 seconds. Before printing

or recording emission results, wait approximately 2 minutes

until the values have stabilized. Minor drifting of a few ppm

can be due to unstable pressure conditions in the exhaust

channel and may be negligible.

Since the CO sensor has an independent gas path with

NOx/SOx filter (see diagram above), the response time will

be slightly longer for CO measurement values.

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