Ntron Yellow Box Operating Manual

Yellow Box User Manual

Yellow Box

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Issue Number:

1.14

Issue Date:

29/01/2018

V.1.1

The

General Short Form User Manual

Portable Oxygen Analyser

Part Number.: 05-674

Yellow Box User Manual

Contents

1. Introduction .................................................................................... 3

1.1 SPECIFICATIONS .................................................................. 3

2. Warnings ! ....................................................................................... 4

3. Start up ............................................................................................ 4

4. Operation ......................................................................................... 5

5. Calibration ....................................................................................... 6

MENU 1 – CALIBRATE SENSOR .......................................................... 7

MENU 8 - DIAGNOSTICS .................................................................... 8

The Yellow Box Analyser ................................................................... 9

Frontplate Description ....................................................................... 9

6. Maintenance .................................................................................. 10

Yellow Box User Manual

V.1.1

Issue:

1.14

Page 3

1. INTRODUCTION

The Yellow Box Portable Oxygen Analyser is based on the Microx range of
Oxygen Analysers and incorporates two selectable Microx Analysers which
are application dependant to the end users requirements.
Typical measurement ranges are 0-25% and 0-1000ppm, and these will be
taken as a basis for the instructions that follow in this manual. For Yellow Box
models with different measurement ranges, the same operational principles
apply but calibration gases will differ. (Details available from Ntron when
required)
The Instrument is powered by connection to a main AC power supply as given
in the specification table below but is also available with an optional internal
Battery offering remote operation where no mains power outlet is available
and power back-up in case of a mains power failure. This option, if required,

must be specified at time of order.

The Yellow Box contains a flow indicator and flow adjustment to enable the
correct amount of sample gas to be presented to the internal Zirconia Oxygen
Sensors.
The Yellow Box is presented in a robust carry-case with Lid which provides
protection during transportation and use.

1.1 Specifications

Supply

Mains Input

Voltage

85-264VAC ; 47-63Hz; 0.1-0.15A

Battery Option:

Backup battery @ 12VDC , 2.3AH

Sensor

Type:

ppm and % Zirconia Oxide

Life:

5 years (Depending on Air exposure and other
gases)

Typical Range

%

0.1-25 Oxygen; Accuracy 2% of FSD

ppm

1-1000 Oxygen; Accuracy 2% of FSD

Sample Gas Input/Output

Pressure:

</= 2 Barg

Flow:

300-500 cc/minute (Typically 250cc/minute)

Fuses

Main Fuse

500mA anti-surge front panel fuse for input
protection.

Additional Features (microx analysers)

Yellow Box User Manual

V.1.1

Issue:

1.14

Page 4

Display:

4 Digit, 7 Segment Display.

Keypad:

4-Button Keypad

Weight:

Typically 8Kg but dependant on model type.

Operating Temp.

+5 to +45 Degrees Centigrade

2. WARNINGS !

Over pressure at the sample gas input to the Yellow Box can damage the
internal Sensors.

Moisture or other liquid with the sample gas stream can damage the
internal Sensors particularly if applied when the internal Sensors are in
their un-powered/un-heated state.

3. START UP

.

Switch-on the Yellow Box by operating the %-On/Off-ppm 3 –position switch
on the front plate of the Yellow Box.
(Select % or ppm )
(For units with optional internal Battery, ensure that the battery is charged
sufficiently for operation or that the yellow Box is connected to the mains
electrical supply)

Choose the Microx module for the correct range of sample gas to be
measured.

When power is then first applied to the Microx module (% or ppm) an
initialisation procedure is performed as follows:

• All the display segments are displayed

• The software version number is displayed

• The company name is displayed

• The sensor type is displayed

• The display then shows the gas level.

The module is now operational