Nic Mercury/EMP-2 Manual de usuario

Mercury Survey Meter for Work

Environments

Mercury/EMP-2(for WLE)

Instruction Manual

NIC-TD-0000025-00

Nippon Instruments Corporation

NIC-TD-0000025-00

Mercury Survey Meter for Work Environments

Mercury/EMP-2(for WLE) Instruction manual

- Contents -

1. Introduction ................................................................................................ 1

1.1. Safety precautions.................................................................................................. 1

1.1.1. Safety symbols .......................................................................................................1

1.1.2. Common precautions to take with the main body of the equipment, the batteries,

and battery charger................................................................................................................1

1.1.3. Precautions regarding the main body of the equipment.........................................2

1.1.4. Precautions regarding the batteries .......................................................................3

1.1.5. Precautions regarding the battery charger.............................................................4

1.2. Equipment overview................................................................................................ 5

2. Principles....................................................................................................6

2.1. Operation ................................................................................................................ 6

2.2. Description of individual parts................................................................................. 7

2.2.1. Top of main unit......................................................................................................7

2.2.2. Bottom of main unit................................................................................................. 8

3. Specifications............................................................................................. 9

3.1. Standard configuration............................................................................................ 9

3.2. Specifications of each apparatus............................................................................ 9

4. Measurement ........................................................................................... 11

4.1. Flow chart of measurement.................................................................................. 11

4.2. Preparation before power-up................................................................................ 13

4.2.1. Checking the battery charge status......................................................................13

4.2.2. Checking the SD card...........................................................................................13

4.2.3. Checking the probe connection............................................................................14

4.2.4. Confirming the equipment usage conditions ........................................................14

4.3. Measuring operation............................................................................................. 16

4.3.1. Power-up ..............................................................................................................16

4.3.2. STAND-BY screen................................................................................................17

4.3.3. READY screen......................................................................................................18

4.3.4. Pre-measurement confirmation............................................................................23

4.3.5. Measurement screen............................................................................................25

4.3.6. Ending a measurement ........................................................................................29

5. MENU screen........................................................................................... 30

5.1. Simplified Calibration............................................................................................ 30

5.1.1. Calibration method ...............................................................................................31

5.1.2. Method of preparing a standard mercury gas ......................................................34

5.2. Setting the measurement conditions (Setting) ..................................................... 36

5.2.1. Full-scale value of the level meter........................................................................37

5.2.2. Alarm-generating level..........................................................................................37

5.2.3. Amount of mercury adsorbed by the zero filter ....................................................38

5.2.4. Current time..........................................................................................................39

5.2.5. Unit of measured mercury concentration .............................................................39

5.2.6. Measurement mode..............................................................................................39

NIC-TD-0000025-00

5.2.7. Sig/Ref Voltage Regulation ..................................................................................40

5.2.8. Normalization Temperature..................................................................................42

5.2.9. WLE solution replacement cycle ..........................................................................42

5.2.10. WLE solution replacement time............................................................................42

5.2.11. Measurement cycle time in static mode ...............................................................43

5.3. Confirmation of measured data (Data Check)...................................................... 43

5.4. Maintenance ......................................................................................................... 45

5.5. EMP-2/WLE.......................................................................................................... 47

6. Measured data ......................................................................................... 48

6.1. Instantaneous value data...................................................................................... 48

6.2. Average value data............................................................................................... 49

7. Maintenance............................................................................................. 50

7.1. Inspection items.................................................................................................... 50

7.1.1. Daily inspections...................................................................................................50

7.1.2. Yearly inspections ................................................................................................50

7.2. Errors and warnings.............................................................................................. 51

7.2.1. Exchange Lamp....................................................................................................52

7.2.2. Exchange Pump ...................................................................................................52

7.2.3. Exchange ZERO Filter..........................................................................................53

7.2.4. Battery Empty.......................................................................................................54

7.3. Maintenance ......................................................................................................... 56

7.3.1. Replacing the zero filter........................................................................................56

8. Spares...................................................................................................... 57

9. Optional accessories................................................................................ 57

10. Contact..................................................................................................... 58

NIC-TD-0000025-00

1. Introduction

- 1 -

1. Introduction

1.1. Safety precautions

1.1.1. Safety symbols

Warning

Denotes that incorrect handling could pose a specific potential hazard that

may result in serious injury or death to the operator.

Caution

Denotes that any incorrect handling could pose a specific potential hazard

that may result in minor or moderate injury to the operator and/or damage

to property.

1.1.2. Common precautions to take with the main body of the equipment, the

batteries, and battery charger

· Do not use or leave the equipment anywhere it will be exposed to high

temperatures (e.g. in the vicinity of a fire or heater or in intense sunlight). Failure

to observe this could result in the equipment igniting or exploding, or fire.

· Do not allow your hands, fingers or other body parts to come into contact with the

charging terminals or other connecting terminals while power is being supplied to

the equipment. Failure to observe this could result in an electric shock, injury, or

failure of the equipment.

· Do not use the equipment if thunder can be heard outdoors, or lightning could

strike or electric shock occur.

· Customers are advised not to disassemble, modify, or repair the equipment as

doing so can be very dangerous. Failure to observe this could result in the

equipment failing or igniting, or electric shock or injury. Please note that we can

accept no responsibility for any failures or problems that have occurred with the

equipment, batteries, battery charger, or other components due to modifications

made by a customer.

· Ensure not to splash any water or other liquids onto the equipment. Never use the

equipment anywhere it could be directly exposed to water etc. or in humid

locations such as bathrooms; and never use the equipment with wet hands.

Failure to observe this could result in electric shock, shorting of the electronic

circuits, or a failure due to corrosion. (Use special caution in the rain or snowfall,

and at the seaside or anywhere near water, etc.) If the equipment is exposed to any

liquids, ensure to immediately turn off the power switch.

Warning

1. Introduction

NIC-TD-0000025-00

- 2 –

· Do not store or place the equipment anywhere it will be exposed to direct sunlight

(e.g. in automobiles), high or extremely low temperatures, or in moist or dusty

locations. Failure to observe this could result in deterioration, for example

discoloration or deformation, and/or result in a failure.

· Do not place the equipment on a wobbly base or in inclined or other unstable

locations, or the equipment could fall, thus causing injury or breaking it. In

addition, ensure it is not exposed to any shocks or other external forces.

· Ensure to observe the rating of electric outlets and wiring accessories during use.

If any of those ratings is exceeded, for example by too many appliances being

plugged into one outlet, the resulting heat generated could result in fire.

· Do not forcibly remove the SD card from the slot. Failure to observe this could

result in a failure or loss of the internal data.

· The equipment being damaged due to a fall could result in internal parts of the

equipment being exposed. In this case, ensure not to touch any of the exposed

parts, or you could suffer an electric shock or be injured by the damaged part.

Contact our agency or service representative as soon as possible.

1.1.3. Precautions regarding the main body of the equipment

· Ensure to completely remove the power supply before carrying out any

maintenance, or it could result in an electric shock.

· Do not insert any foreign matter such as liquids, metal or flammable objects into

the SD card slot. Failure to observe this could result in fire, an electric shock, or

failure of the equipment.

· In very rare cases, some people can develop symptoms such as temporary muscle

spasms or loss of consciousness when exposed to the stimulus of intense light or

a repeatedly blinking screen. If you have had any such experience, ensure to

consult a doctor before using the equipment.

· The structure of the equipment is not waterproof. The equipment getting wet from

rain or for any other reason could result in a failure or electric shock. Ensure the

equipment is kept dry.

· This equipment should be used 2,000m altitude and under.

· Do not disassemble or modify the equipment. Contact our agency or service

representative when inspections, adjustments, or repair of the internal parts need

to be made.

· Avoid any strong shocks or impact to the LCD screen, or the glass could break,

thus resulting in an injury.

· Avoid any strong shocks or impact to the equipment, for example by allowing it to

fall or objects hitting it.

Caution

Warning

Caution

NIC-TD-0000025-00

1. Introduction

- 3 -

1.1.4. Precautions regarding the batteries

· The batteries being left or placed anywhere at a high temperature of over 60°C or

those being deformed by an external force could result in ignition or explosion,

and thus great danger. Ensure the batteries are used within an ambient

temperature range of 0 to 45°C.

· Any of the batteries breaking could result in electrolyte leaking out, which could

then adhere to the skin or clothing. In such a case, immediately wash any

electrolyte away with water as it could be harmful. Furthermore, if any electrolyte

gets into your eye(s), ensure to rinse them with water without rubbing them and

then immediately consult a doctor, or it could result in loss of your eyesight.

· Ensure to insert the batteries with the correct polarity into the main body of the

equipment and battery charger. The incorrect polarity could result in them

exploding, catching fire, or heat being generated. If the batteries do not fit in place,

ensure not to push them in too forcefully. Carefully check the connections again

before attempting to reinsert them.

· Ensure not to short out any of the terminals such as the plugs and jacks. Pay

special attention to metallic parts such as necklaces, and staples. Before storing

them, protect the parts by affixing insulation tape to them or by other means, or

fire or burning could result.

· Do not modify or disassemble any of the batteries. Failure to observe this could

result in fire, burns, or failure.

· Do not expose the batteries to any water, seawater, coffee, or other liquids. The

batteries being wet could result in heat being generated, an explosion or fire; so

ensure to immediately disconnect the plug. Do not to attempt to charge any wet

batteries.

· If a battery emits any smoke or an unusual odor or is overheating, ensure to

immediately turn off the power and disconnect all the plugs.

· Do not damage, work on, pull or twist the power cable. Ensure not to use any

damaged cords. Failure to observe this could result in an electric shock, short

circuit, or fire.

· Ensure to hold the plug when connecting and disconnecting it. Holding the cord

only can result in excessive force to the lead wire and a break in the wire or failure

of the equipment.

· In extremely high- and low-temperature environments, the capacity of the batteries

will be decreased and thus shortening the available operating time (of the

equipment per battery charge). The battery life will also be decreased. Do not keep

or store the batteries at any temperature below 0°C or above 45°C.

· Before discarding any dead batteries, ensure to seal the terminal area with

insulation tape and then dispose of it appropriately in accordance with

government ordinances and regulations.

Warning

Caution

1. Introduction

NIC-TD-0000025-00

- 4 –

1.1.5. Precautions regarding the battery charger

· Do not charge any batteries using anything else but the dedicated AC adapter.

Failure to observe this could result in fire or electric shock.

· Do not use the AC adapter to charge any batteries other than those used in the

equipment. Ensure not to short any of the terminals such as the plugs and jacks.

Failure to observe this could result in fire or electric shock.

· Ensure to disconnect the power plug before maintaining or cleaning the battery

charger. Wipe away any dust around the power plug and jack, or it could result in

fire.

· Ensure the battery is charged somewhere stable. Placing the battery charger on a

wobbly base or in an inclined or other unstable location could result in the charger

falling, thus leading to an injury or it breaking. In addition, ensure not to cover or

wrap the battery charger in a cloth. Failure to observe this could result in fire or

failure of the equipment.

· If the battery charger is to be unused for a long period of time, ensure to

disconnect the power plug from the outlet. Leaving the power plug connected will

result in needless consumption of electricity.

Warning

Caution

NIC-TD-0000025-00

1. Introduction

- 5 -

1.2. Equipment overview

The Mercury/EMP-2 was designed for use in automatically measuring the concentration of

mercury in work environments in real time. The equipment is capable of in-situ measuring

the concentration of mercury in real time in pursuing the source of any the mercury pollution.

Moreover, the equipment was designed to fit on the operator's shoulder or around their waist,

and is very portable, i.e. small in size and low weight but high operability.

Please ensure to thoroughly read this manual before using the equipment in then being able

to make full use of its capabilities.

Figure 1 Mercury/EMP-2

2. Principles

NIC-TD-0000025-00

- 6 –

2. Principles

2.1. Operation

The measurement operation consists of "Zero adjustment" and "Mercury concentration

measurement" cycles.

Once a measurement starts the gas (hereinafter referred to as the sample gas) in the work

environment is constantly taken into the equipment through the tip of the probe until the end

of the measurement.

The purpose of "zero adjustment" is to correct the baseline of the mercury concentration.

During "zero adjustment" the sample gas passes through the zero filter. The zero filter

adsorbs any mercury, and hence any sample gas that has passed through the zero filter

does not contain any mercury (hereinafter referred to as zero gas). Afterwards the mercury

absorbance of the zero gas is measured in the absorption cell.

At this point in time the baseline of the mercury concentration is determined.

In a "mercury concentration measurement" the sample gas does not pass through the zero

filter and instead passes through the absorption cell where the mercury absorbance is

measured.

A relative value with respect to the baseline determined at the time of "zero adjustment"

allows the correct mercury concentration to be determined without having been obstructed

by any interfering components. The cold vapor atomic absorption method at a wavelength of

253.7 nm is used in the detection.

Figure 2 Flow diagram

Zero filter for zero gas/for

interfering component

confirmation

Inlet

Preamp

Outlet

Power switch

Probe

Air pump

Preamp

Photocell

Electromagnetic

three-way valve

Half mirror

Absorption cell

Low-pressure mercury

discharge tube

Lens

Photocell

Filter unit

Microcomputer

Warning buzzer

START/STOP

button

SD card

Display LCD

USB

Battery

NIC-TD-0000025-00

2. Principles

- 7 -

2.2. Description of individual parts

2.2.1. Top of main unit

No.

Name

Function



Start/Stop button

EMP-2 only: Starts and stops measurements.

EMP-2+WLE: injection and replacement WLE

solution



LCD with touch panel

Used to confirm measured concentrations, and

change and set the measurement conditions.



SD card and USB slot cover



Power switch



Sample inlet

Part to which the probe is attached or detached

from the main unit



Probe



Filter

Removes fine particles in sample gases.

⑦

⑥

⑤

②

④

③

①

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