Tenmars TM-91, TM-92 User Manual

TE]TIMARS

RADIATION

TM-g1/TM-92

TENMARS

ELECTRONICS

METER

(C

HB2TM91

CO.,

00000

LTD

introduction

NOTICE
lnteraction
End of

life

colvTENrs

of radiation

with matter

.....

13
13
15

TrllhtAFlq

1. INTRODUCTION

This manual
the nature

understood
measurements

of

care

following

monitor
service.

The radiation

equipment.
case, the
radiation

tube may
(100"F) may also

functioning.

The electronic

humidity(over

contains

of ionizing

the user

by

your

can be

Geiger

instructions

give

will

meters

you

Although

Geiger-Mueller

is fragile.

Exposure

break.

circuitry

90%RH).

lf

cause

valuable

radiation

so that

made.

counter

is also included.

are followed,

years

many

very sensitive

are
housed

tube

the unit

is dropped,

of the

the G-M

sensitive

is

information

should

that

accurate

lnformation

your

of reliable

a high

in

senses

that

unit above

tube

high

to

TM-g1/92

about

be

on the

radiation

pieces

-impact

the G-M

to stop

lf the

of

40t

EN-2

EN.3

2.

SAFETY

conditions

Please
plastic

in

avoid radiative

Do not

operate

environment
combustible gas

with dust

PRECAUTION

ake extremely

while measuri

put

the radiation

zipper

a radiative

itor's

contaminated

surface

the meter

with

explosive

(material)

care

for the following

I

bag before

dust

falling on the

under the

gas

steam or

monitor into

operating

area

to

(material),

filled

during

wet.

it with

several

internal

caused

you

use.

for being

pollution

place(such

However,

a towel

days(do

onlY bY

data,

the

by

do not

any

take

This

degree

5.C

-40

-1

0.C

-

2.

very hot

in a

especially

get

to

unit

the

to

coverto

the battery

clean

for

air-dry

microwave).

or

bemoved

technician.

reading

is

over

400VDC.
incorrect

immediately

"l-+l'appears on

damage

the

electricity,

static

or

before

board

lndoors

designed

been

of

2000M.

UP to

Humidity:

&

Humidity:

&

car,

allow

NOT

allow

place

NOT

order to

replace

the

to

the

in an

Temperature

0%-

put the unit

glove box,

be avoided,

unit

an oven

in

back

voltage

avoid

symbol

avoid

circuit
action.

Environment:

has

environment

Altitude:

Temperature

80%RH.

70%RH.

Do NOT
as a
summer).
Do
if it cannot
and

not

a

it

Do
qualified service
operating
ln
please

when

LCD.

ln order
contamination
touch

adequate

Operating

instrument

used

a

Operation

a

Operating

'C,0o/o-

Storage

50r,

EN-4

EN-5

3.

SPECIFICATI

I

Display
reading
Sampling

20 second/
5 second/

unit selection

pSv/h

prSv/h

Display

0.0'1

1

0. 1

0. 0 1

Measurement

0.50pSv/h-1

50pRem/h-1

0.5prSv/h-1

0. 05mRem/h-1

Alarm

function

0.50pSv/h,can
alarm

set

0-199.9sSv/h(TM-92).

Auto

Power
30 min,
power

off.

t

Low

I

battery

Power:

. 3 1/2

digits

1999.

:

LCD with

times(TM-91

times(TM-92)

:

pRem/h(TM-91

or

or

mRem/h(TM-92)

Range

:

pSv/h-'1

pRem/h-1

pSv/h-'1

mRem/h-'1

9.99pSv/h(TM-91

999pRem/h(TM-91

99.9pSv/h (TM-92)

9. 99mRem/h(TM-92)

Range

9.99pSvih(TM-9'1
999pRem/h(TM-91

99.

9prSv/h

9. 99mRem/h(TM-92)

: alarm

set 0-19.99pSv/h(TM-91

default

0.SpSv/h,can

Off

function

can set

9V

0-60min;0

indication

battery.

"l-+l-

NEDA

EN-6

:

(TM-92)

set default

set

:

time default

min disable

1604. IEC

maximum

).

).

or

)

)

or

or

)

or

set

)

)

auto

6F22 or

r

Battery
battery).

T

Over

T

Accuracy

I

Energy

I

Weight

T

Size'. 143x74

4.

IDENTIFYING

display.

1. LCD

2. Setup

3. Units

4. Power

funciion

and setup

ON / OFF

5. Unit and

JIS 006P

: About

Life

"OL"

display

load

. !20o/o

dependency

'.2209.

(Cesium-137)

x34

PARTS

button.

function

button.

setup function

EN-7

50 hours(Alkaline

(

Lx\AfxH

to 1.3 Mev

: 30KeV

mm

down button

up button.

)

5. OPERATION

Press

segment

illuminated

about

testing.

lntermittent

detection,

sensing.
Press
pSv/h
Press
pRem/h(T2)

Press
pRem/h(T2)(TM-92).
Press

second
LCD

value,

@

Alarm the
again
enter
display

the

power

the

of the

two

second.

auxliary

The

the

@ button:

(T1)(TM-e1).

the

@ Outton:

the

@

the

@button

to enter

display

press

V"

initial

@

setting

"APO"

"

@A

PROCEDURE

@

swithbutton

LCD indicator

together

BEEP

(TM-e1).

"ALR"

the

button change

button

auto

with

We

are now ready

signal

radiation

higher the

button: Select

for

setting

value

first

"

alarm

first

the

'

@

0.SpSv/h,

more than

power-off(APo),

the setting

buttonor'@V"

EN-8

: All

is

BEEP

signal for

follows

during

strength

repetition

Select

rate.

test unit

Select test unit

test

more than

press

"

f

the

1

mode , the

the setting

button

digit value,

Press

1 second

the

press

value,

unit

or

LCD

for

button

change

off

setting, the

Press

again
second
OFF

,the

LCD

display

@

,l\'

change
button

more than

calibration

the setting

button

or

digit value,

'1

value

.00, Press

'1

than

second

measurment
The

Geiger-muellertube

the slots

"

to

surface
beta radiation
detected
and

other types

discussed
surface

through

the digit

initial value

@ button

to enter

the ON

of the tube

is fragile

the slots

setting

"ON"

button

facfor,

value,

"

@

Calibration

to exit

mode.

in the

upper edge

to

greater

with

in the

setting

default

or OFF.

penetrate

of radiation

next section).
and

will damage

value,

is

more

buzzer ON

is always

"OFF"

or

,press

or'@

Press again

1 second

the LCD

press

V"

again

is very

to enter

display

the

button

facfor

@ button

and return

is located

ofthe case.

thin .This

and to be

efficiency. (Beta

will

poking

power-

Auto

30 minutes.

than 1

or

"ON",

the

button

v"

setting

"CF"

"

@

,1\

change

the initial

to

behind

allows

be

This thin

sharp

objects

the

tube.

the

"

@

first

"

the

more

The

rays

EN-9

a

Your

sensitive

Gamma

1.

2. Beta
a

Gamma
penetrate
comparative
Beta radiation

the case

radiation

measure
radioactive
Beta
should

they are

1)

Geiger

to:

radiation

radiation.

radiation

the

through

is easily
accurately.

radiation,

positioned

be

exposed

Counter

(which includes

and X-raYs

plastic

ease.

most

can

the slots.

detected.

is being

object

open slots

the

to the

(Figure 1)

is designed

can

with

case

efficently

Although

is difficult

lt

Therefore,

searched

in the

a way

such

in

object(see

to be

X-rays).

enter

Beta

when

for

case

that

Figure

lf the

unit shows

reading

in this

object
Now

ln

directly through

travels

only

to

a

object

This

geiger

position

this

gamma

is the

counter

position,
is emitting

position,

in straight

wil

position

with increasing

a significantly

you

can

Beta radiation.

the

unit as shown

where

radiation

the

slots

lines for

and

X-ray radiation

be detected

(Figure

2)

in

which to

to take readings.

higher

beep

sound volume

be certain

(Beta

radiation

the most

hold the

that

in Figure
cannot

parl

from

the

the

2.

pass

)

EN-10

EN-11

6. BATTERYREPLACEMENT

'l-+1"

please rePlace

screwdriver

(OPEN).

screwdriver

slide

on

fix it

towards

out.

cover

the batterY

to

the

a

"

Use
battery

Press

cover

Push
remove

the symbol

lf

LCD,

form

-"

cover hole

completely

and

hole

screwdriver

battery

aPPears

insert

battery

into

of hole

back

into

and

on

the

TE1{

7.

NOTTCE

Geiger Counter
reasonable

includes
accurate
assumes
or otheruyise
Geiger
circumstances.

gamma,

to

necessarily
alpha, neutron
open Geiger
or attempt

8.

INTERACTION
MATTER

standards of acceptance,

instructions that,

measurements. Manufacturer

no liability for damages,

that may arise

counter by

beta

to etremely

counter or otherwise

to service it.

to be accurate

person,

any

The Geiger counter

and X-ray radiation,

or microwave radiation.

within

followed

if

consequential

from the use of

under

is sensitive

low energy forms,

tamper with

OF RADIATION

and

yield

,will

any

but not

Do not

WITH

the

or

(Figure 3)

EN-12

particles

The

nuclear
released

The value
electron
alpha

typical

energy
approaches
cover

decay

from

Volts, or eV. The

rays is invested

beta

of about 500,000

a wide

are known

photons

and

carry most of the

the original unstable

of this energy is expressed

particle

that result

energy

energy of beta

particles

in the

from Cesium-1

eV, and

nucleus.

37 has an

a speed that

that of light. Beta energies

range, and many radioisotopes

to emit betas at energies

in excess

EN-13

from

in

and

speed.

can

A

TEH

eV.

million

of 10

typical

human skin.

Alpha

ranges
energies
ranges

to measure.

paper, and in

of

most
particles cannot
close
only
source

within

surface.

the

not

are
emitted

energy,

tissue

sensitive

Fortunately,
substances

their

Neutrons,
matter

through

free

A

an average

beta

particles

than

are

short that

so

before

contact

alphas

the

can

source

the

a serious

from

in close

their high

living

detection.

having

easily as

as

great

neutron,

particles

beta

on the

Alphas

coming

be detected.

Due to

within

almost

also emit

of 11.7

penetration

The

is
even

have

particles.

order

they

are stopped

air only

to

be detected

the

with

coming

are absorbed

short

health

the body

contact
energy,

tissue,

all alpha-emitting

no net

other

thickness

drifting

minutes,

range

a few

only

shoder

Typical

5 million

of

extremely

are

by

a few

travel

Therefore,

a stop.

without

source,

is

and

the

from

Alphas

before

range,

unless

hazard

when

sensitive

with

in close
an extreme

surface

generated

alpha

contact

gamma rays,

charge,

of material

through

do not

pafticles, and

space,

yielding a

of

millimetres
penetration

alpha

eV, with

difficult

sheet

a

-nin

inches

alpha

being

then

even

of the

reaching
padicles

they

high

their

living

with

hazard.

allowing

interact

can

without

will decay

proton

in

at

in

are

for

drift

incident

and

with

in

an

electron (beta

combine
carries

it close enough.

absorbed

ultimate
unstable.

medicine
elements
neutrons

typical

Geiger
sources
affording

The highly

energy
energy
gamma
several
can
radiation
common
large

atomic

9.

also emit

as they
of

radiation

million

penetrate

are by far the

types,

amounts

number,

END

X

I

ray). The neutron

with the

into

fate

This absorption

nucleus

a nucleus,

(decay),

and industry,
from

non-radioactive

is specialized

counters, but

gamma

detection

energetic

up to about

OF

of the source.

X-ray and

penetrate

200,000 eV, compared

which can be

eV. One million

an inch

of steel. Gamma

most

and are only effectively

of heavy, dense

such as

lead.

LIFE

Caution

that equipment

shall be subject
collection

of an atom,

When

a neutron

it is saved

but

may render

process

to create

ones.

and

beyond

most

and beta

gamma

matter.

X-rays

as energetic

gamma

e V

penetrating

material

: this symbol

and

to a separate

and correct

can

also

path

if its

is

from its

the nucleus

is

used in

radioactive

Detecting

the scope

possible

rays

and X-ray

absorbed

its accessories

disposal

neutron

radiation,

lose their

have an

to

as

radiation

of all

by

of high

indicates

of

EN-14

EN-15