ATM

Averaging Temperature Sensor

GENERAL

ATM is an average temperature sensor which is installed from tank top.

ATM consists of plural temperature elements which have different length

with fixed interval. In one element, several Pt sensors are distributed in

equal interval and these Pt sensors totally form Pt 100 ohm. Thus, one

element detects vertical average temperature.

ATM is connected to Tokyokeiso’s Intelligent type servo operated tank

gauges or digital tank data transmitters by which the longest tempera-

ture element below the liquid surface is selected.

STANDARD SPECIFICATION

Element standard

: Pt (JIS C1604-1997)

On request

:JPt, Cu

Element class

:

Standard

; Class B

(ATM-

□□□□-□B-□□□□□)

Fine

; Class A

(ATM-

□□□□-□A-□□□□□)

Rating current

: 2mA

Measuring range

: 0 to 100°C

No. of elements

: Max. 16

Measuring length

: Max.30000mm

Element interval

: Standard sensor intervals : 1m, 2m, 3m

Consult TOKYO KEISO for other intervals

including uneven distribution.

Operating pressure

: Atmospheric pressure

Connection

: Flange

Flange size

: 40mm, 50mm, 80mm, 100mm or others

Rating

: JIS10k RF, ANSI#150, JPI#150 or others

Enclosure

: Flameproof construction

Exd ll B T4 (TllS)

Exd ll B T6 (LCIE)

Exd ll B T4 (KOSHA)

Cable entry

: G3/4 or others (with adapters)

Cable termination

: M3.5 screw terminal

Material

:

1

s

s

a

l

c

l

a

i

r

e

t

a

M

ATM-

□□□1

2

s

s

a

l

c

l

a

i

r

e

t

a

M

ATM-

□□□2

e

b

u

t

.

x

e

l

F

SUS316L

L

6

1

3

S

U

S

e

g

n

a

l

F4

0

3

S

U

S6

1

3

S

U

S

x

o

b

l

a

n

i

m

r

e

T

ADC12

t

h

g

i

e

w

r

o

h

c

n

A4

0

3

S

U

S6

1

3

S

U

S

Mass

:

Measuring length (m)

Mass (kg)

7

12

10

14

15

18

20

22

25

26

30

30

Finish

: Terminal box

; Silver as standard color

Stainless steel part ; No paint

MODEL CODE

Model code

ATM–

––

Element

interval

1m

2m

3m

Special

"01"(1 element) to "16"(16 elements)

Material class 1

Material class 2

Special

Water tight

Flameproof construction (TIIS)

Flameproof construction (LCIE)

Flameproof construction (KOSHA)

JPt (JIS)

Pt (JIS)

Class A (Fine)

Class B (Standard)

40mm (11/2")

50m (2")

80m (3")

100m (4")

Others

JIS10k RF

ANSI#150

JPI#150

Others

Not provided

Provided

Not provided

Provided

1

2

3

9

1

2

9

J

P

A

B

1

2

3

4

9

0

1

0

1

1

2

3

9

W

E1

E2

E3

No. of elements

Element class

Standard element

Enclosure

Process flange size

Process flange rating

Flameproof cable gland

Anchor weight

Material class

Description

*2

*3

*4

*1

*1: Consult TOKYO KEISO for other kinds of materials.

*2: with adapters

*3: It is required to use specific Flameproof cable gland.

*4: Specify cable Outside diameter.

TG-LD272-4E

Oct 2017

Jan 1992

5th edition

1st edition

K