PRESSURE- TIGHT FLAMEPROOF FOR HYDROGEN
ATMOSPHERE READY

FR-6000 Series
FLOAT TYPE LEVEL SWITCHOUTLINE
FR-6000 is a float-rod type level switch
which applies for wide range of pressureand temperature. FR-6000 is suitable for themonitoring of liquid levels in various process
tanks, boiler feeding water, etc.

FEATURES

MAIN APPLICATIONS❏ Wide selection range for temperature andpressure.
❏ Variety of material selection for float andchambers for suitable anti-corrosive capability.
❏ Perfect isolation between pressurized partand electric component by magnetic coupling for high reliability and safety.
❏ In addition to watertight construction,pressure tight and intrinsically safe versions are ready to meet hazardous application.
Especially, pressure-tight flameproof suitable for Hydrogen atmosphere (Ex d IIC
T6) is available which eliminates the necessity of safety barriers.

● Boiler Feeding drum water control● Fuel oil tank level control● Process control for petrochemical plants● Water treatment plants● Oil rig's platform● Sealing liquid level control for generatorsand turbines● Other liquid level control

TG-L431-13E
14th edition Nov 2017 K
3rd edition Apr 1996

FR-6000 FLOAT TYPE LEVEL SWITCHSTANDARD SPECIFICATION● Detection method : By float● Measurement object : Liquids (Level)● Viscosity: Max. 600 mPa•s. Liquid without stick● Density range● Pressure rating● Accuracy● Repeatability● Reset span

● Liquid temp.

● Enclosure● Installation● Connection

2ing, crystallization, or freezing: For level detection
0.56 to 2.0g/cm3: 10K (150#), 20K (300#): ±10mm (Density 1.0g/cm3): For level detection ±5mm
: Within 15mm, but more than 15mm,depending on the switch specificationand the density.
: -25 to +400˚C
One cooling fin will be provided for theversion for higher temp. than 151˚C.
Two cooling fins will be provided for theversion for higher temp. than 281˚C.
Contact capacity of such high temp.
versions will differ from standard version. Refer to "CONTACT CAPACITY"
for further details.
: Watertight IP65 equ. FR-609❑W
Pressure-tight flameproof
Ex d IIC T6 FR-609❑EX
Intrinsically Safe Ex ia IIC T6 FR609❑S(Safety relay to be separately installed)
Ambient temperature: -20°C to +80°C,but Flameproof type: -20°C to +55°C
Intrinsically safe ex-proof type: -20°C
to +80°C: Tank top flange connection orTank side connection through chamber: For tank top installation
Through 4B flange
JIS10K, ANSI#150, JPI#150
JIS20K, ANSI#300, JPI#300
or Others
For tank side connection
through chamber
1"SW,Rc1,1"NPT
2 5 A J I S 1 0 K R F, 1 " A N S I # 1 5 0 ,1"JPI#150
2 5 A J I S 2 0 K R F, 1 " A N S I # 3 0 0 ,1"JPI#300other 1"flange or others

TOKYO KEISO CO., LTD.

● Material:/ SUS316, SUS316L, or TP340)/ SUS304, SUS316, or SUS316L/ Carbon steel, SUS304, SUS316, orSUS316L/ Aluminium alloy casting/ Carbon steel
SUS304 / SUS304
SUS316 / SUS316 or
SUS316L / SUS316L: For liquid temp.upto 150˚C
Polyurethan resin painting
For liquid temp.more than 151˚C
Silicone resin painting(Only the exterior side of iron andaluminium is painted.): Silver (std.): 1 point (High or Low)

Float
Lead pipe
Top flange
Housing
Chamber● Painting● Color● Alarm point● Contact● Contact capacity● Cable entry: 1 x SPDT or
2SPDT (Equ. to DPDT): Refer to Model code
:ModelClassification

Cable entry

FR-609□W(Watertight)

G3/4

–

G1/2

Cable dia. ø9 to 11

G3/4

Cable dia. ø12 to 14

FR-609□EX

Ex d IIC T6

FR-609□S

Ex ia IIC T6

Remarks

G3/4

NPT and other threads are available by adapters.

●Cable termination : By M3.5 screw terminal(M3 screw terminal for high temp. versions)

TG-L431-13E

FR-6000 SERIES FLOAT TYPE LEVEL SWITCH

MODEL CODE
Basic code

Detection part

Chamber

FR-609Pressure rating 1150#(10K)class300#(20K)class2

Enclosure W
EXS

Watertight(IP65equ.)Pressure-tightflameproof(Ex d IIC T6)
Intrinsically safe(i3nG5)

Top flange size 44"(100mm)
OthersZ

046
Z

Top flange rating
JIS10KRF
JPI#150
ANSI#150
JIS20KRF
JPI#300
ANSI#300
Others456789Z

Gasket material
Not provided
VORTEX(SUS304)
VORTEX(SUS316)
OthersBolts, nuts and gaskets for processconnection are to be supplied by thecustomer.

Chamber connection

Top flange/Lead pipe material
S
46L
Z

0123456789DZ

Carbon steel/SUS304
SUS304/SUS304
SUS316/SUS316
SUS316L/SUS316L
OthersFloat material

SLTZ

SUS316
SUS316L
Titanium
OthersNot provided
1"SW
Rc1
1"NPT
1"JIS10KRF
1"JPI#150
1"ANSI#150
1BJIS20K
1"JPI#300
1"ANSI#300
Other 1"(25mm)flange
OthersSwitch type, Temp. class etc.
COD
E

MINIMUM
ON/OFF CONTACT SWITCH SWITCH
NO. OFCONTACTAPPLICABLE COOLINGMECHANISM
TYPE
MODEL SUPPLER CAPACITY
LOAD
TYPE
FIN
–25~150
VX-5-1A20DC5V
AC250V, 5A
DC125V, 0.4A 160mA
1151~230
V5-1A3T
SPDT
1231~280 GENERAL
AC250V, 1A
DC5V
TZ-1GV
DC125V, 0.4A 20mA
2281~400 PURPOSE
OMRON
VX-5-1A20–25~150
DC5V
AC250V, 5A
DC125V, 0.4A 160mA
1151~230
V5-1A3T
2SPDT
1231~280 EARTHQUAKE
AC250V, 1A
DC5V
PROOF
TZ-1GV
DC125V, 0.4A 20mA
2281~400 (3G) TYPE
LIQUIDTEMP(˚C)

12345678
A –25~150
AC250V, 5A
DC5V
B 151~280
SPDT
11SM244
DC125V, 0.3A
100mA
DC30V,5A
C 281~350
D –25~150
SPDT
AC125V, 0.1A DC5V
SSM13A0
DC30V, 0.1A
E 151~200 HERMETIC (GOLD PLATED)
1mAAzbil
SEAL
F –25~150 TYPE
AC250V, 5A
DC5V
G 151~280
DC125V, 0.3A
2SPDT 11SM244
100mA
DC30V, 5A
H 281~350
I –25~150
AC125V, 0.1A DC5V
2SPDT
SSM13A0(GOLD PLATED)DC30V, 0.1A
1mA
J 151~200
K –25~150
VX-5-1A2
SPDT
V5-1A3T
L 151~230 EARTHQUAKE
DC5V
AC250V, 5A
PROOF
OMRON
DC125V, 0.4A 160mA
VX-5-1A2
M –25~150 (3G) TYPE
2SPDT
V5-1A3T
N 151~230SPECIAL
Z––––––

Chamber material
0S
46L
Z0

Chamber material1201

Not provided
Carbon steel
SUS304
SUS316
SUS316LOthers

0AB
Z

Not provided
Side-Side
Side-BottomOthers

01
20
10
10
1
–

applications with lower temperature than -26˚C, an extension* : Forunit will be added and the external dimension will be diferrent
from the standard versions. Conslut fectory for details.

Switch action

TG-L431-13E

HL

High alarm
Low alarmTOKYO KEISO CO., LTD.

3

FR-6000 FLOAT TYPE LEVEL SWITCHFLOAT TYPE AND DIMENSIONS
Table 1: Float Table
Float No
1

Maximum possible pressure (MPa)
200℃

315℃

400℃

AT

0.56

0.61

0.61

2.0

1.1

0.9

̶

N

T

0.59

0.63

0.64

3.3

3.2

2.6

̶

1.0

0.9

0.8

0.8

1.0

0.6

0.5

0.5

2.3

2.3

2.1

1.8

2.2

2.2

1.8

1.6
̶

A
2N
3

Minimum possible density (g/cm3)

6
L
6
L

−25 to 150℃ 151 to 280℃ 281 to 400℃ −15 to 40℃

0.6

0.64

0.64

0.63

0.66

0.67

AT

0.66

0.7

0.71

2.4

1.3

1.0NT

0.7

0.73

0.74

3.7

3.6

3.0

̶

1.1

1.0

0.9

0.8

1.0

0.7

0.6

0.5

2.5

2.5

2.2

1.9

2.3

2.3

1.9

1.7

1.2

1.1

1.0

0.9

1.1

0.7

0.6

0.5

2.5

2.5

2.3

2.0

2.3

2.3

1.9

1.7

A
4
N
A
5
N

6
L6
L
6
L
6L

0.73
0.74
0.83
0.86
T：TP340
6：SUS316
L：SUS316L
A：Standard design
N：Purged

Float design

0.75
0.76
0.84
0.87

0.76
0.77
0.85
0.88

The content of this table may differ for alam point and switch type.

Table 2 : Float dimensionDimension (mm)Float No.

1-□T2008562-□ L

200853-□T

16085160851358564-□ L
65-□ L

4TOKYO KEISO CO., LTD.

TG-L431-13E

FR-6000 SERIES FLOAT TYPE LEVEL SWITCH

EXTERNAL DIMENSIONS
1.

Detection partFR-609□W-□□□□1□

FR-609□W-□□□□2□

FR-609□W-□□□□3□

FR-609□W-□□□□4□
φ171

φ171

φ171

φ171

377

477

427

427

G3/4
G3/4

G3/4

G3/4

FR-609□EX-□□□□1□

FR-609□EX-□□□□2□

FR-609□EX-□□□□3□

FR-609□EX-□□□□4□
MAX.207

MAX.207

MAX.207

φ171

MAX.207

φ171φ171477

External Chamber
4-B□ □94-A□ □9〜1-A□ □3〜〜1-B□ □3〜2.

427

377

427

φ171140260

8080ℓℓ260

140

1B
1B

TG-L431-13E

1/21B

1/21B

TOKYO KEISO CO., LTD.

5FR-6000 FLOAT TYPE LEVEL SWITCH

ALARM ACTUATING POINTTERMINAL ARRANGEMENT

The standard alarm actuating point of FR-6000 level switches is as

SPDTfollows. Other actuating point is available as special order. Please

Terminal No.

NO1) For Top flange installation type

Terminal No.
NCNCordering.

SPDT 2COM

1NO2COM3NC

1234NO

M3.5*5COM

6M3.5** M3 terminal for high temp. version
Figures show the switch action at Normal level(Switch is not actuated).

350

INTRINSICALLY SAFE RELAY (EB3C)
Intrinsically safe relay is to be inserted into the contact loop of FS10❑S type level switch. 1 to 3 points use relays are available. Selectsuitable IS relay considering the total number of contacts.
ALARM POINT

Standard Specification702) For External chamber installation type

ALARM POINT

Explosion protection
Rated operating voltage
Rated operating current
Installation location
Contact configuration
Relay output(Resistance load)
Contact allowable power(Resistance load)
Insulation resistanceWithstand voltage
Model code□□
EB3C- ROutput typeR01
02
No. of contact
03

Intrinsically safe Ex ia IIC
DC12V±10%DC10mA±20%
Non-hazardous area
1a contact
AC250V, 3A
DC24V, 3A
AC750VA
DC72W
DC500V at 10MΩ
AC1500V (1 min.)□A
DPower supply

Description
Model
Relay output
1 point use
2 points use
3 points use
AC100V to 240V, 50/60Hz
DC24V

EB3C Dimensions
EB3C-R01□

70mm below the center line of upper nozzle both for side~side andside~bottom type chambers.

42EB3C-R02□, R03□
65

77.5

CAUTIONS FOR WIRING(FR-609❑S) to be used in Japan, the cable wiring is to be con-656175● In case of the flameproof type (FR-609❑EX) and intrinsically safe
ducted in accordance with the enforcement regulations of “Cable(4)Wiring” system in FLAMEPROOF TYPE CABLE WIRING as
specified in “Industrial Safety and Health Law”. For details, referr Applicable crimping

to “USER’S GUIDELINES for Electrical Installation for Explosive

terminal

Gas Atmospheres in General Industry” edited by MINISTRY OFMIN.ø3MAX.6

HEALTH, LABOR AND WELFARE RESEARCH INSTITUTE OF IN-

Exd IICT6 classification under the condition of using our desig-

4● FR-609❑EX type pressure tight flameproof version is certified for6

DUSTRIAL SAFETY JAPAN.

10MAX.3

MIN.5.4

Terminal screw size : M3

nated pressure-tight cable glands which are delivered together
with level switches. They are to be properly installed.
6TOKYO KEISO CO., LTD.

TG-L431-13E

FR-6000 SERIES FLOAT TYPE LEVEL SWITCHORDERING SPECIFICATIONOTHER LEVELSWITCHESSpecify the following for order/inquiry:

Different types of level switch-

TAG No.

es are available to meet theFR-609 □□ – □□□□□□ – □□□□ ⁄Modelrequirements. Consult factoryfor further details.

Q' TY
Liquid name

FB-5000 Ball float typeDensity
PressureMax.

□MPa□()

NOR.

Max.

□˚C□()□STANDARD□CUSTOM ORDER (Specify L length)

FB-7000 Ball float type

L

70

L

350

ALARM ACTUATING POINT

TEMP.

NOR.

ALARM
POINT

ALARM
POINT

ALARM
POINT

ALARM
POINT
L=mm
L=mm

FP-4000 Lead plpe type

□CUSTOM ORDER (Specify ℓ length)

CHAMBER SIZE

□STANDARD

FS-100 Displacer type
IN CASE PRESSURE
TIGHT CABLE GLANDS ARE INCLUDED:

Outer diameter of cable

For IS version(FR-609□S)□IS relay to be included □IS relay not included
Q'ty 1 point use × (), 3 points use × ()Power supply □AC100/110V, AC200/220V

OTHER SPECIAL
INSTRUCTION, IF
ANYmm

FM-1000 Metal tube
magnetic float type

* 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
TG-L431-13E

TOKYO KEISO CO., LTD.

7