With two-line large display and backlight

SPT3500N Series
MAGNETIC FLOAT TYPE LEVEL GAUGEGENERAL
The SPT3500N series is the successor to the popular SPT3500 series with high reliability, durability, and a solid trackrecord. The field indicator comes with a two-line large display with backlight, which improves the efficiency of work atnight.
As in the previous model, the SPT3500N uses Hall IC, whichis reliable for level measurement. The SPT3500N is the latest
magnet float level gauge that can measure liquid level, temperature, and pressure of ullage space.
The SPT3500N is ideal for measuring and managing liquidcargoes of various vessels such as large crude oil tankers,
small coastal tankers, chemical tankers, LPG tankers, andproduct carriers.

FEATURES❏ CONPACT AND COST SAVING DESIGN❏ SEPARABLE LCD FIELD INDICATOR
Visibility is improved with a two-line large display (for leveland temperature) with backlight.
Separable indicators can be gathered at a place convenient for valve operation.
(Note that pressure is not displayed on the LCD indicator.)❏ TEMPERATURE AND PRESSURE MEASURMENTIn addition to standard liquid level measurement, ullage
space pressure and maximum 3 points temperature arepossible.
❏ 2 CORE CABLE DATA TRANSMISSION
Liquid level and maximum 3 points temperature and pressure data are sent to CCR monitoring by serial BCD signal
through 2 core cable only including power supply to thedeck. This achieves easy wiring.
❏ 16 bit CPU DATA PROCESSINGIntelligent signal processing unit with 16 bit micro processor achieves high reliability and high function such as self
diagnosis and setting of measuring liquid density.
❏ FULL LINE UP OF REMOTE INDICATION SYSTEM
Full line up from individual gauge to computer based system is ready to meet the requirements.

TG-L1032-0E
1st edition Aug 2017 K

Magnetic Float Level Gauge SPT3500N Series

MODEL CODE
SP
Fanction of temperaturemeasurement
Level sensor implementation,
resolution and accuracy

LOG3500 Local indicator

35Specifications
Not provided temperature measurement

T

Provided temperature measurement
110mm pitch sensor

220mm pitch sensor
0

Not provided local indicator

1

Provided local indicator on the terminal box

2

Provided local indicator for separate
NSIntrinsically Safe Type with use safety barrier (TZB-101)

NW

Non Intrinsically Safe Type

Intrinsically Safe Type Ex ia IIC T4, T5 and/or T6
Not provided temperature sensor–1R

1 point provided temperature sensor–2R

2 points provided temperature sensor–3R

3 points provided temperature sensor

Quantity of temperature sensor

Not provided pressure sensor
Ullage space pressure sensor (Not available for LPG tanker)
PProvided pressure sensor
Standard specification (Max. 85°C)

Temperature of Cargo liquid

H High temperature specification (Max. 115°C)

SPECIFICATIONS● Measurement object: Level and temperature of liquid cargo： Standard density range : 0.60 to 1.9 g/cm3： Density range for LPG : 0.43 to 1.0 g/cm3● Measuring method:： Level: Hall IC sensor with magnet float： Temperature: Pt 1000 RTD： Pressure: Absolute type ceramic membrane sensor● Temperature range:(selectable): –20 to +70°C： Ambient： Cargo liquid : –25 to +85°C (Standard)–25 to +115°C (High temp. spec.)● Measuring range:: –1.000 to 35.000 m (Max. 35 m)： Level： Temperature : –25 to +115°C: 80.0 to 200.0 kPa： Pressure● Local indicator： 2 paragraphs LCD display for level and temp. data
： Provided lamp
： Magnet pin externally for operation and setting● Material: SUS316L (Standard) , TP340 (for LPG)
： Float： Terminal box : SUS304 (Standard): SUS304, SUS316, SUS316L： Flange： Guide pipe : SUS304, SUS316, SUS316L● Protection grade: IP66 / IP67
● Explosion proof grade: Ex ia IIC T6, T5 and/or T4● Maximum temperature of cargo liquid for explosion proof：Ex ia IIC T6 : Max. 70°C
：Ex ia IIC T5 : Max. 85°C
：Ex ia IIC T4 : Max. 115°C● Measuring accuracy:: ±20 mm (Standard) / ±10 mm (Option)： Level： Temperature : ±1.5°C: ±0.5% F.S. (Output signal)： Pressure

2TOKYO KEISO CO., LTD.

TG-L1032-0E

Magnetic Float Level Gauge SPT3500N Series

EXTERNAL DIMENSION
Local Indicator-Less

Local Indicator□128(117)

□108

A

B

D

LOG3500(85)C

to Remote Monitoring System(2C Cable / by shipyard)

8∅13TOKYO KEISO CO.,LTD.
JAPAN45

GRAND
G3/4

to Remote Monitoring System(2C Cable / by shipyard)

G3/4
2010(98)

10(98) (98)

7c Cable(by shipyard)

G3/4GRAND
GRAND

20897

min.∅231

50

100
50
Support Structure

ρ=1.0

B

∅200

155

210

141

30

68

min.250

154

ρ=1.0

140
t4

n5140

n3+n42-12×25

n1+n290°
Ｇn0

∅130

Ｇ

50
100

∅34

23

Tank Height:H

L:Guide Pipe Length∅34

Tank Height:H

Tl:Lower temp.Sensor∅139.8n6JIS5K250AFF

min.∅152

L:Guide Pipe Length

Tu:Upper temp.Sensor

Tm:Middle temp.Sensor

18∅139.8146

JIS5K150AFF∅178
22(133)304(133)∅178

min.300

DSPT-3500
TOKYO KEISO CO.,LTD.
JAPAN110C

∅1393

B

min.250AA

B

C

DSPT-3500
TOKYO KEISO CO.,LTD.
JAPAN(300)
75304
(133)

TEMP. ≦ 85°C

TG-L1032-0E

Bottom Cap should bedelivered separately
240

B

DSPT-3500
TOKYO KEISO CO.,LTD.
JAPAN469

A

C

86°C ≦ TEMP. ≦ 115°C

TOKYO KEISO CO., LTD.

3

Magnetic Float Level Gauge SPT3500N Series

SYSTEM CONFIGLATION
Hazardous area

Safety area

Separated local display
AC

B

LOG3500

Extension monitor at bridge,ECR

LOG3500

DMulti monitor

TOKYO KEISO CO.,LTD.
JAPANLANshield cable (7c)

LANTank level gauge

SPT3500N series
AB

CDSPT-3500
TOKYO KEISO CO.,LTD.
JAPANSuper DIR-M3200
BarrierSuper DIR-M3200
19'Color LCD unit in CCR

shield cable(2c)

TZB-101
Multi interface unit

LAN
Super DIR-M8000-IF
Super DIR-M8000-LD19

LANLoading computer

SYSTEM CONFIGLATION
Besides SPT3500N, the following level gauges and relevant instruments for marine applications are available
from Tokyo Keiso ;SP-1200: Mechanical magnet float type level gauge
SPT-7200: Magnet float type level gauge
MIA-LIDEC: Acoustic wave type High level/Overfill alarm sensor
FP-7091: Magnet float type level switch for High level, Overfill, Bilge alarm etc.
FB-5000: Float type level switch* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp
4TG-L1032-0E