UP GRADED WITH WIDER LINEUP

FM MAG GAUGEMETAL TUBE LEVEL GAUGEGENERALFM Mag Gauge is a float type metal tube level gauge. Liquid levelis indicated by clear and visible color flappers. This eliminates
problems likely in indication by existing glass gauges.
In addition, special material of PVC, Fluorocarbon resin, Glass lining etc. are ready to cover very corrosive liquid level measurement.
Alarm contacts and / or analog output unit can be additionally provided for remote monitoring and control purpose.

OPERATION PRINCIPLE
A float, in which a rounded shape magnet is integrated, is locatedin a non-magnetic tube (called Chamber). This float moves up anddown depending on the liquid level in chamber with specified draft
line. Outside of the chamber, an indicator unit is installed, in whichplastic magnet rotating flappers are provided. The front surfacesof such flappers are black and the other sides of flappers are coloured in yellow for every 10mm and red for every 100mm. Thenthese flappers are rotated by movement of float to indicate liquid
level in colour flappers.
FM Mag Gauge can be provided with alarm contacts and/or analog
output (DC4~20mA) unit additionally onto this level indicator.
A reed switch in aluminum case at the setting point is
actuated by the magnet in moving float. Water-tight construction,
intrinsically safe system with thesafety relay,and flameproof enclosure are available.
The 4 to 20 mA output type has thedetection mechanism of float location (liquid level) along chamber.
The detector consists of a series ofreed switches and precision typeresistances which are actuated by
the magnet inside float. The voltage
signal of liquid level is converted to
4 to 20 mA signal for transmitting.
Water-tight construction and flameproof enclosure are available.

FEATURES❏ Metal tube
Free from breakage and leakage.
❏ Clear and visible indication
By colour flappers, Liquid level in tanks is easily observed evenfrom a distance. Free from blurs and smudges which are common
for Glass Gauges.
❏ Covering high pressure and temperature
HPGSL*1 approved version is also available.
*1 High Pressure Gas Safety Law❏ Various materials available
In addition to standard stainless steel, highly corrosion-resistantmaterials such as PVC, fluororesin, and glass are available.
❏ Full function
Indication, alarm contacts as well as analog output.
One unit of FM Mag Gauge covers all necessary functions of levelmonitoring and control.

TG-L2262-E02
3rd edition Aug 2023 K
1st edition Jun 2022 K

FM MAG GAUGESTANDARD SPECIFICATION
Measuring object: Max. viscosity 600mPa.s and without
		 sticking and crystallization.
Available range: Refer to pages of subject models.
Maximum OP. Press. : Refer to pages of subject models.
Temp. range: Refer to pages of subject models.
Level indication: By colour flappers
Interval of flappers: Standard version FM
10mm
		 Fine version FMS *1
5mm
Indication accuracy : Standard version FM ±15mm
		 Fine version FMS*
±10mm
Process connection. : Standard; Tank side through 1"(25mm) flanges
		 Details are to be referred to pages of		 subject models.
Material: To be referred to pages of subject models.
*1 FMS type is applicable for FM-1200 type made of stainlesssteel.
* The indication can follow up to 2cm/s in liquid level changing
speed.

SUGGESTIONS● On liquid level indication
The indicator flappers are actuated by magnet in float. There aredifferent types of float for models, but the position of magnet andactual liquid level (Draft line to float) are different depending on theliquid density. Thus, the position where specific indicator flapper
rotates and the position of actual liquid level are different slightly.
This gap is fixed and shifted upward in fixed value. This gap (A) is
indicated in Approval drawing. The zero line of indicator is to belocated above actual liquid zero point by distance of A. Refer to
instruction manual for details.
Also, be careful for minimum density for the float. Operation problem may occur in case of lower density than designed density.
Interface measurement and / or extreme low and high density liquidmeasurement are available on request. Consult factory for details.

Consult factory for the direction of the connection nozzle otherthan “side – side”.

A

Consult factory for jacket type.

DESCRIPTION OF MODEL CODE
Model code of FM Mag Gauge is described as follows;
1) Only for local indicatorFM-1 2 3 - 42) Local indicator+Alarm contacts
FM-1 2 3 - 4 5 6 73) Local indicator+Analog output
FM-1 2 3 - 4 / 8 9 4) Local indicator+Alarm contacts+Analog output
FM-1 2 3 - 4 5 6 7/8 9 /8 9  to be added to the end of code indication 2)

1
2
3
4

Press., Temp. class (2 digit)
Indicator

Alarm

Enclosure of alarm (Water-tight, intrinsic
safety, flameproof)
No. of contact
No. of terminal box

8910

Float material and density range
Conn. flange rating

5
6
7

Chamber, Nozzle material

Analog output

Enclosure of analog unit (Water-tight,
intrinsic safety, flameproof)● Heating and heat insulation
In case of necessity of heating and thermal insulation for sticky liquids etc., thermal insulation is to be provided only for chamber portion as shown below. Do not cover indicator, alarm and analog unit
by thermal insulation material. The heating or insulation on theseparts might causes damages or malfuntioning of indication, alarmor transmitting mechanism.

Direction of sensor
Direction of convertor

Refer to pages of subject models for details of model code.

2

TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGEMODEL SELECTION GUIDANCE
Different types and materials are available for FM Mag Gauge. Refer to the following table for selection.
● For normal temperature(Up to 120°C. Note that certain resins have a narrower temperature range.)
Model
FM-

FMFMFMFMFM-

121□
122□
123□
12Z□
124□
125□
126□
127□
128□
129□
141□
142□
143□
14Z□

Chamber material
SUS304
SUS316
SUS316L
Special metal
PVC (HPVC)
Stainless steel + PVC lining
Stainless steel + ETFE lining
Stainless steel + PFA lining
Stainless steel + PTFE lining
Stainless steel + Glass lining
SUS304
SUS316
SUS316L
Special metal

Temperature
range (°C)

Max. operatingpressure ✽1MPa-10 ≦ t ≦ 120

PVC (HPVC)

Float material

Available length (mm)
Min.

Max.

SUS: 3
TP340: 2.5

0 to 250

0 to 4380

0 ≦ t ≦ 60 (80)0.20 to 250

NBR foam + PFA lining

0 ≦ t ≦ 100

0.2

0 to 250

Glass-30 ≦ t ≦ 120✽20.2

titanium alloy-10 ≦ t ≦ 120

13

Float material

Temperature
range (°C)

Max. operatingpressure ✽1
MPa✽4
SUS316, SUS316L or
titanium (TP340)
Consultation required✽4

0 to 2000
0 to 4000✽30 to 3500

0 to 250

0 to 3000

0 to 250

0 to 4380✽5● For high temperature
Model
FM-

161□
162□
163□
16Z□

Chamber material
SUS304
SUS316
SUS316L
Special metal

FMFM-

169□
181□
182□
183□
189□

Stainless steel + Glass lining
SUS304
SUS316
SUS316L
Special metal✽2✽6–196 ≦ t ≦ +150
SUS316, SUS316L or–10 ≦ t ≦ +400
titanium (TP340)
The maximum
operatingConsultation required
temperature for
TP340 is 250ºC.
Glass
120 < t ≦ 150✽4✽2✽6

Available length (mm)
Min.

Max.

0 to 250

0 to 4380

0 to 250

0 to 3000

0 to 250

0 to 4380✽4Titanium alloy–196 ≦ t ≦ +150
–10 ≦ t ≦ +400

SUS: 2
TP340: 1.6

0.2
✽5
13

✽1 : Subject to flange connection rating.
✽2 : For a temperature range of −196°C ≤ t < −10°C, the gauge is manufactured with low-temperature specifications (indicator with non		 freezing acrylic board.
✽3 : Up to 2400 mm for ETFE lining, and up to 2500 mm for PTFE lining under negative pressure✽4 : Titanium (TP340), titanium alloy, may be subject to hydrogen embrittlement.
✽5 : Up to 20 MPa with a special order (depends on design conditions). Contact us.
✽6 : Subject to limitations on the indicator length for operating in the temperature range above 350ºC. Contact us.

TG-L2262-E02

TOKYO KEISO CO., LTD.

3

FM MAG GAUGE

FM-1210,1220,1230,12Z0

Standard metallic type for low pressure and moderate temperature1

FM-12 2 0 series are standard type Mag gauge with SUS304,
3
SUS316, or SUS316L material. (titanium float is used for someranges.)MODEL CODEAVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~4380mm (3400mm for FMS)
Max. Op. Press.: 3MPa
		 (Max. 2.5MPa for titanium float)
		 (Subject to connection flange rating)
Negative pressure is available up to Full Vacuum,		but it may be unavailable, depending on the 		
specification. Consult Tokyo Keiso for availability.

10mm(Accuracy 15mm)

Flapper pitch

5mm (Accuracy 10mm)
SUS304
SUS316

Chamber material

SUS316L
Other
0.39~0.45
0.44~0.52

Temp. range: · FM-1200
				–10˚C≦t≦120˚C(Down to –60˚C available on request. The indicator with non-frost acrylic resin plate is available. *1)
		 · FMS-1200
			 –5˚C≦t≦80˚C *2

TP340

0.5~0.6

Titanium0.55~0.7
0.62~0.8
3Density range (g/cm )Float material

0.6~0.7
0.65~0.8
0.7~0.9

SUS316or
SUS316L

0.8~1.0

DIMENSIONS

0.9~1.4
R1/2

1.0~1.5E

1.25~2.0
25A JIS 10KFF
25A JIS 10KRF
120

1" JPI 150#RF

60.5

1" ANSI 150#RF

H

H(H+100)(H+100 *3)56

Connection flange ratingF

25A JIS 20KRF
1" JPI 300#RF
1" ANS I300#RF

Special2

3*3

The indicator has a non-frost acrylic resin plate.(FM-1200)
The indicator cannot have a non-frost acrylic resin plate.
(FMS-1200)
The dimension of FMS-1200 is not same as 100 mm.

FLOAT AVAILABILITY AND SIZESNo.

Density(g/cm3)

A
0
1
2
3
N
P
5
6
7
8
9

0.39~0.45
0.44~0.52
0.5~0.6
0.55~0.7
0.62~0.8
0.6~0.7
0.65~0.8
0.7~0.9
0.8~1.0
0.9~1.4
1.0~1.5
1.25~2.0

DesignE
C
450 200
350 200
280 200
250 200
210 200
485 160
385 150305 130
235 110
195 110165 100
165 100

Material
TP340
Titanium

SUS316or
SUS316L

Float
L
470
380
300
270
220
520
410
320
250
200
170
170

48.5

A

INDICATOR INSTALLATION ANGLE

*1
*2

L
Draft

R1/2

* Actual length "C" may be extended depending on
the float type as is the case of gas filled type.
Consult factory for details.

1. Standard

Other 1" (25A) flanges*C

Indication gap

25A JIS 5KFF

Max. operating press. is 1.33MPa for float No. A to 3.
Max. operating press. is 2.0MPa for float No. N to 9.
Consult factory for details when max. press. exceeds these values.
4

TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGE

FM-121Z0,122Z0,123Z0,12ZZ0
Double tube type for liquefied gas
1Z

FM-12 2Z 0 are metal tube level gauge for liquefied gas with SUS304,
3Z

SUS316, or SUS316L material.

MODEL CODE

A double tube type has the effectiveness that inhibits the sudden riseand dive of a float by boiling and bumping of liquefied gas.

Description

FM-12

AVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~4380mm
Max. Op. Press. : 2.5MPa
		 (Subject to connection flange rating)Temp. range: –10°C≦t≦120oC
		 (Down to –60oC available on request. The indica
		 tor with non-frost acrylic resin plate is available.)

Chambermaterial

1Z

SUS3042Z

SUS3163Z

SUS316L
Other

4Z

Densitiy range (g/cm3)
Float material

DIMENSIONS

A

0.39~0.45

00.44~0.52

1

0.5~0.6

2

0.55~0.7

3

0.62~0.8

Z

TP340
Titanium

Special
0 25A JIS 10KFF
1 25A JIS 10KRF

R1/2

E

2 1" JPI 150#RF
2X 2 hole
Upper part ofchamber

3 1" ANSI 150#RF
5 1" JPI 300#RF

130

F

7 25A JIS 5KFF

76.3
(Outside pipe)

8 Other 1" (25A) flanges
9 Special

2X 5 hole
Lower part ofchamberC

Indication gap

6 1" ANSI 300#RF

60.5(Inside pipe)

76.3
H

H

(H+100)68

4 25A JIS 20KRF

Connection flange rating

F

R1/2

Densitiy(g/cm3)A
01
2
3

0.39 ~ 0.45
0.44 ~ 0.52
0.5 ~ 0.6
0.55 ~ 0.7
0.62 ~ 0.8

Design
E
C
200
780
200
580
200
450
200
380
200
320

Float
Material

TP340
Titanium

L
790
610
470
400
330

Ar Gas Sealed

0.91(MPa)

48.5

A

No.

L

1. Standard

FLOAT AVAILABILITY AND SIZES

Draft

INDICATOR INSTALLATION ANGLE

The direction to install indicator can not be changed at site.
Max. operating press. is 1.96MPa.
Consult factory for details when max. press. exceeds this value.

TG-L2262-E02

TOKYO KEISO CO., LTD.

5FM MAG GAUGE

FM-1240,1250

Made of PVC for low pressure and moderate temperature
FM-1240 series are level gauge with PVC material for both chamber and float to cover corrosive liquids.
FM-1250 has a PVC lined stainless steel chamber which offers better mechanical durability than pure PVC chambers.

MODEL CODEAVAILABLE RANGES OF PRODUCTS

Flapper pitch

10mm (Accuracy 15mm)
PVC

Range
: Min. 0~250mm
		 Max. 0~2000mm *2
Max. Op. Press. : 0.2MPa
Temp. range: 0°C≦t≦60oC (HPVC : 0°C≦t≦80°C)

Chamber material

HPVC

H

St. Stl.+PVC lining
0.75~0.9 (0.7~0.8)
0.8~1.0 (0.75~0.9)
Density range (g/cm3)
Float material *1

DIMENSIONS

0.9~1.3 (0.85~1.2)
1.05~1.7 (1.0~1.5)
1.4~2.0 (1.35~2.0)

R1/2

25A JIS 10KFF (t=21)
F

E

E

1" JPI 150#FF (t=19.7)
1" ANSI 150#FF (t=19.7)

Connection flange rating *3

25A JIS 5KFF (t=17)t120

Special

60.5

H

H

(H＋100)H

Other 1" (25A) flanges

120

56

60

H

(H+100)56*1 Float material is PVC or HPVC. () indicates applicable den-sity range for FM-125 ■ type (Stainless steel + PVC lining).

F*2 In case of material code 5, max.4000mm is available.

F

FLOAT AVAILABILITY AND SIZESFor PVC version FM-124 ■ and HPVC version FM-124H ■JIS10K50ARF

PVC
HPVC
FM-124□ FM-124H□Ct

PVC lined SS
FM-125□

INDICATOR INSTALLATION ANGLE

No.

Density(g/cm3)567890.75~0.9
0.8~1.0
0.9~1.3
1.05~1.7
1.4~2.0

Design
E
C
120
290
120
250
120
200
120
150
120
140

Float
L
300
250
200
150
150

48

L

R1/2

The inside of parenthesis shows the thickness of flange.

Indication gap

C

Indication gap*3 Connection flange of lined version is Flat Face (20A or more).

PVC,HPVC

260˚

For Stainless steel+PVC lining version FM-125 ■No.

Density(g/cm3)567
8
90.7~0.8
0.75~0.9
0.85~1.2
1.0~1.5
1.35~2.0

Design
C
E
150
290
150
250
160
200
170
150
180
140

Float
L
300
250
200
150
150

46

PVC

L

1. Standard

3
60˚

6

TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGE

FM-1260, 1270

Made of Fluorocarbon resin for low pressure and moderate temperatureThis series of gauges is made of fluorocarbon resin and other anticorrosive materials.

AVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~3500mm
		 Maximum range of ETFE lining type is 2400mm
Max. Op. Press. : 0.2MPa
Temp. range: 0°C≦t≦100oC
Details of lining
ETFE lining : FM-126 ■ Lining thickness 1.6 mm
PFA lining: FM-127 ■ Lining thickness 1.75 mm

MODEL CODE

Flapper pitch

10mm(Accuracy ±15mm)
ETFE lining

Chamber material

PFA lining
0.72~0.75
0.75~0.8
0.8~0.9

Density range (g/cm3)
Float material

NBR+

0.9~1.0

PFA lining(1.5t)

1.0~1.3*1

1.3~1.5
1.5~2.0

DIMENSIONS

Special
F *4

*2

E

E

* The flange face of lining type is equivalent to the raised face ofVent hole

114

FLOAT AVAILABILITY AND SIZESC(134) 114

*2

Indication gap

C

Indication gap*6Equivalent to JIS10K50ARF

ETFE lining
FM-126 ■F*4

PFA lining
FM-127 ■* Vent holes are arrangedon the metal tube. Do notfill them with paint or heat
INDICATOR INSTALLATION insulator.
Keep vent holes away from
ANGLE
rain water and condensation.
If gas penetrating the lining
dissolves into any water, it
1. Standard
may corrode the metal tube.

2

3

A
B
C
E
F
G
H

Density(g/cm3)0.72~0.75
0.75~0.8
0.8~0.9
0.9~1.0
1.0~1.3
1.3~1.5
1.5~2.0

DesignCE
400 190
370 190
310 190240 190
200 190
190 190
190 190

Float
L
400
345
280
210
170
190
190

42.6

*3

Draft A

Vent hole

No.

L

*F

For ETFE lining version FM-126 ■Titanium+PFA lining available on request(Dimension will be changed. Consult factory for details.)*1 The float for vacuum services is made of either stainless steel ortitanium lined by ETFE.
*2 The blind flanges for vacuum services are made of carbon steel
lined by PTFE.
*3 The float for vacuum services has a different shape and sizes.
*4 Connection F*5 Shape and dimension E*6 Measuring range H
For PFA lining version FM-127 ■No.

Density(g/cm3)

A
B
C
E
F
G
H

0.72~0.75
0.75~0.8
0.8~0.9
0.9~1.0
1.0~1.3
1.3~1.5
1.5~2.0

Design
E
270
270
280
280
280
260
270

C
400
350
280
210
170
190
170

Float
L
400
345
280
210
170
190
190

42.6

L

H

*6

H=H0–(C+E+114)
H0

ø60.5

H

H

(H+100)122
ø60.5

flange.

Draft A

56

Equivalent to JIS10K50ARF

1" ANSI(JPI)#150

Connection flange rating *Special*556

25A JIS 10K*3

Titanium+PFA lining available on request(Dimension will be changed. Consult factory for details.)

TG-L2262-E02

TOKYO KEISO CO., LTD.

7

FM MAG GAUGE

FM-1280

Made of Fluorocarbon resin for low pressure and moderate temperatureThis series of gauges is made of fluorocarbon resin and other anticorrosive materials.

MODEL CODEAVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~3500mm *1
Max. Op. Press. : 0.2MPa
Temp. range: 0°C≦t≦100oC
Details of lining
PTFE lining : FM-128 ■ Lining thickness 2 mm
			
: 3mm for vacuum application*1: Max. 2500mm for vacuum application

Flapper pitch

10mm(Accuracy

8

Chamber material

15mm)

PTFE lining
0.72~0.75
0.75~0.8
0.8~0.9

Density range (g/cm3)
Float material

NBR+ *3

0.9~1.0

PFA lining(1.5t)

1.0~1.3
1.3~1.5
1.5~2.0

SpecialDIMENSIONS

25A JIS 10K

Connection flange rating *2*4*2 The flange face of lining type is equivalent to the raised face ofEFflange.

Vent hole*3 The float for vacuum services is made of either stainless steel ortitanium lined by ETFE.
*5 Measuring range H

Equivalent to JIS10K50ARF

F *4* Vent holes are arrangedon the metal tube. Do notfill them with paint or heat
INDICATOR INSTALLATION insulator.
Keep vent holes away from
ANGLE
rain water and condensation.
If gas penetrating the lining
dissolves into any water, it
may corrode the metal tube.
1. StandardNo.

Density(g/cm3)

A
B
C
E
F
G
H

0.72~0.75
0.75~0.8
0.8~0.9
0.9~1.0
1.0~1.3
1.3~1.5
1.5~2.0

DesignE
C
400 260
350 260
280 270
210 270
170 270
190 260
190 270

Float
L
400
345
280
210
170
190
190

42.6

Draft A

C

ø60.5

115

Indication gap

Vent hole

FLOAT AVAILABILITY AND SIZESL*5*4 Connection F

H0

H=H0–(E+C+115)

120

H(H+100)56

1" ANSI(JPI)#150
Special* Titanium+PFA lining available on request(Dimension will be changed. Consult factory for details.)* Vacuum application of PTFE, dimension will be changed.

2

3

8

TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGE

FM-1290

Glass lining type for low pressure and moderate temperature

FM-1290 series is glass lining type for very corrosive services

MODEL CODEAVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		Max. 0~3000mm
Max. Op. Press. : 0.2MPa
Temp. range: -30°C≦t≦120oC *4

Chamber material

Stainless steel+Glass lining *3
0.9~1.0
1.0~1.1

Density range (g/cm3)(Float material : Glass)

DIMENSIONS

1.1~1.25
1.2~1.4
1.3~1.6
25A JIS 10KRF

Ｆ

1" JPI(ANSI)150#RF
50A JIS 10KRF

Ｅ

Connection flange *2(The connection flange
codes 1,2,3,4 and 9
consist of tees or
reducing tees.)

(114)
64

102

50A JIS 10KRF
50A JIS 10KRF
2" JPI(ANSI)150#RF
2" JPI(ANSI)150#RF

Ｈo

Ｈ

Ｈ

φ60.5

2" JPI(ANSI)150#RF* 1 "H" length of 4 to 20 mA output type may become shorter.
Please contact TOKYO KEISO.
* 2 The flange face of lining type is equivalent to the raised face offlange* 3 The flange is made of carbon steel lined by glass.
* 4 The indicator has a non-frost acrylic resin plate for the service
below -10°C.

(114) (114)
102 102

Ｃ

Indication gap Ａ

SpecialＦ

E typeINDICATOR INSTALLATION ANGLEFLOAT AVAILABILITY AND SIZES
No.
3
5
6
7
8

Density(g/cm3)0.9~1.0
1.0~1.1
1.1~1.25
1.2~1.4
1.3~1.6

DesignC
E
300 280
240 280
200 280
190 280
180 280

Float
L
270
210
175
160
150

46

10

S type

F
50A

L

F
50A

Draft A

102 (114)

Figures in ( ) show those for JPI and ANSI flanges.

1. Standard

2

3

TG-L2262-E02

TOKYO KEISO CO., LTD.

9

FM MAG GAUGE

FM-1690

Glass lining type for low pressure and high temperature

FM-1290 series is glass lining type for very corrosive services

MODEL CODEAVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		Max. 0~3000mm
Max. Op. Press. : 0.2MPa
Temp. range: 120°C<t≦150oC

Chamber material

Stainless steel+Glass lining *3
0.9~1.0
1.0~1.1

Density range (g/cm3)(Float material : Glass)

DIMENSIONS

1.1~1.25
1.2~1.4
1.3~1.6
25A JIS 10KRF

Z
Ｆ

1" JPI(ANSI)150#RF
50A JIS 10KRF

Connection flange *2
Ｅ(The connection flange
codes 1,2,3,4 and 9
consist of tees or
reducing tees.)

(114)
64

102

50A JIS 10KRF
50A JIS 10KRF
2" JPI(ANSI)150#RF

Ｈ

Special* 1 "H" length of 4 to 20 mA output type may become shorter.
Please contact TOKYO KEISO.
* 2 The flange face of lining type is equivalent to the raised face offlange* 3 The flange is made of carbon steel lined by glass.

(114) (114)
102 102Ｃ

DIFFERENCE Ａ

Ｈo2" JPI(ANSI)150#RF

φ60.5

Ｈ

2" JPI(ANSI)150#RFＦ

E typeF
50A

INDICATOR INSTALLATION ANGLE

No.
3
5
6
7
8

Density(g/cm3)0.9~1.0
1.0~1.1
1.1~1.25
1.2~1.4
1.3~1.6

DesignC
E
300 280
240 280
200 280
190 280
180 280

Float
L
270
210
175
160
150

46

10

S typeFLOAT AVAILABILITY AND SIZES

L

F
50A

Draft A

102 (114)

Figures in ( ) show those for JPI and ANSI ﬂanges.

1. Standard

2
Heating / terminal insulation are to
be conducted onto chamber portion
only.
3

10

TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGE

FM-1410, 1420, 1430, 14Z0

Metallic type for high pressure and moderate temperature
MODEL CODE
FM-14
Chambermaterial

DIMENSIONS
Density range(g/cm3)
Float materia

–
1
2
3
Z
A
B
C
D
E
F
1
2
3
4
5
6
Z

Indication gap • A

Gasket: 3.3

1
2
3
Connection ange rating 45
6
9

20K, 30K, #300 Class : 22.4
40K, 63K, #600 Class : 31.8
#900, 1500 Class : 44.5

INDICATOR INSTALLATION ANGLE
1. Standard

Description
SUS304
SUS316
SUS316L
Special0.52 ≦ ρ < 0.54
Ti-6Al-4V
0.54 ≦ ρ < 0.57 (titanium alloy)
0.57 ≦ ρ < 0.61
★For low0.61 ≦ ρ < 0.69 viscosity (waterequivalent)
0.69 ≦ ρ < 0.85
liquids
0.85 ≦ ρ < 1.20
0.59 ≦ ρ < 0.61
Ti-6Al-4V
0.61 ≦ ρ < 0.65 (titanium alloy)
0.65 ≦ ρ < 0.70
■ For high0.70 ≦ ρ < 0.80 viscosity (oilequivalent)
0.80 ≦ ρ < 1.00
liquids
1.00 ≦ ρ < 1.40
SpecialTi-6Al-4V
25A JIS 40KRF
1" JPI 600#RF
1" ANSI 600#RF
25A JIS 63KRF
1" JPI 900#RF
1" ANSI 900#RF
SpecialFLOAT AVAILABILITY AND SIZESNo.

Density ρ (g/cm3)

A
B
C
D
E
F
1
2
3
4
5
6
Z

0.52 ≦ ρ < 0.54
0.54 ≦ ρ < 0.57
0.57 ≦ ρ < 0.61
0.61 ≦ ρ < 0.69
0.69 ≦ ρ < 0.85
0.85 ≦ ρ < 1.20
0.59 ≦ ρ < 0.61
0.61 ≦ ρ < 0.65
0.65 ≦ ρ < 0.70
0.70 ≦ ρ < 0.80
0.80 ≦ ρ < 1.00
1.00 ≦ ρ < 1.40
SpecialDesignCE
715 200
615 200
515 200
420 200
315 200
215 200
710 200
615 200
515 200
420 200
320 200
215 200
–
–

Float
L
756
655
554
453
352
250
760
659
558
457
356
254
–

Float
Float
★ For
■ For
low-viscosity high-viscosity
liquids
liquids
φ49

φ49

φ45

φ41
L

Range
: Min. 0~250mm
		 Max. 0~4380mm
Max. Op. Press. : See the table below. Up to 20 MPa with a special
		 order (depends on design conditions).
		 Contact us.
Temp. range: –10°C ≦ T ≦120oC

L

AVAILABLE RANGES OF PRODUCTS

2

3

Allowable measurement temperature and pressure
Float No. A to E, 1 to 6
T (°C)P (MPa)–10
13.2

TG-L2262-E02

0
13.2

25
13.2

50
12.8

75
11.9

100
11.1

120
10.7

TOKYO KEISO CO., LTD.

11

FM MAG GAUGE

FM-1610, 1620, 1630, 16Z0

Metallic type for low pressure and high temperature
FM-1600 is a series of metal tube level gauge for high temperature
with stainless steel chamber and float (titanium float for low density
applications).

MODEL CODE
Description

AVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~4380mm *Max. Op. Press.: 2MPa (Titanium float : 1.6MPa)
		 (Subject to connection flange rating)Temp. range: –196°C ≦ t ≦ +150°C
		–10°C ≦ t ≦ +400°C
		 (The maximum operating temperature for TP340
		 is 250ºC.)
		 (Subject to limitations on the indicator length for		 operating in the temperature range of 350ºC or		higher)

SUS304
Chambermaterial

SUS316
SUS316L
Other
0.39~0.45
0.44~0.52

TP340

0.5~0.6

Titanium0.55~0.7
Density range (g/cm3)
Float material

0.62~0.8
0.65~0.8
0.7~0.9

SUS316or
SUS316L

0.8~1.0
0.9~1.4

DIMENSIONS

1.0~1.5
25A JIS 10KFF

R1/2

25A JIS 10KRF
E

1" JPI 150# RF
1" ANSI 150# RF
Connection flange rating120

25A JIS 20KRF
1" JPI 300# RF

60.5

1" ANSI 300# RF
H

H(H+100)64

25A JIS 5KFF
Other 1"(25mm) flanges

F

110

C

Indication gap

Special

R 1/2* Dimension will be changed.

1. Standard

2
Heating / thermal insulation are to be
conducted onto chamber portion
only.

No.
A
0
1
2
3
P
5
6
7
8

Density(g/cm3)

DesignCE
0.39~0.45 620 200
0.44~0.52 490 200
0.5~0.6
390 200
0.55~0.7 340 200
0.62~0.8 290 200
0.65~0.8 460 170
0.7~0.9400 170
0.8~1.0
300 150
0.9~1.4
260 150
1.0~1.5
230 130

Material
TP340
Titanium*0.68MPa
SUS316or
SUS316L*(1.35MPa)

Float
L
650
520
410
360
300
460
400
300
260
230

48.5

A

INDICATOR INSTALLATION ANGLEFLOAT AVAILABILITY AND SIZES

L
Draft

Consult factory for details.

* Consult factory for details when max. press. exceeds these value.
3

12TOKYO KEISO CO., LTD.

TG-L2262-E02

FM MAG GAUGE

FM-1810, 1820, 1830, 18Z0

Metallic type for high pressure and high temperature
MODEL CODEAVAILABLE RANGES OF PRODUCTS
Range: Min. 0~250mm
		 Max. 0~4380mm *Max. Op. Press. : See the table below. Up to 20 MPa with a special
		 order (depends on design conditions).
		 Contact us.
Temp. range: –196°C ≦ t ≦ +150°C
		–10°C ≦ t ≦ +400°C
		 (Subject to limitations on the indicator length for		 operating in the temperature range of 350ºC or		higher)		 (Be careful that alarm switches with 4 to 20 mA
		 output are subject to limitations on the operating		temperature.)

FM-18
Chambermaterial

Density range(g/cm3)
Float materia

DIMENSIONS

–
1
2
3
Z
A
B
C
D
E
F
1
2
3
4
5
6
Z

1
2
3
4
Connection ange rating 56789Description
SUS304
SUS316
SUS316L
Special0.57 ≦ ρ < 0.60
Ti-6Al-4V
0.60 ≦ ρ < 0.64 (titanium alloy)
0.64 ≦ ρ < 0.70
★For low0.70 ≦ ρ < 0.81 viscosity (waterequivalent)
0.81 ≦ ρ < 1.04
liquids
1.04 ≦ ρ < 1.50
0.64 ≦ ρ < 0.68
Ti-6Al-4V
0.68 ≦ ρ < 0.73 (titanium alloy)
0.73 ≦ ρ < 0.81
■ For high0.81 ≦ ρ < 0.94 viscosity (oilequivalent)
0.94 ≦ ρ < 1.22
liquids
1.22 ≦ ρ < 1.60
SpecialTi-6Al-4V
1" JPI 900#RF
1" ANSI 900#RF
1" JPI 900#RTJ
1" ANSI 900#RTJ
1" JPI 1500#RF
1" ANSI 1500#RF
1" JPI 1500#RTJ
1" ANSI 1500#RTJ
Special

20K, 30K, #300 Class : 22.4
40K, 63K, #600 Class : 31.8
#900, 1500 Class : 44.5

INDICATOR INSTALLATION ANGLE

Density ρ (g/cm3)

A
B
C
D
E
F
1
2
3
4
5
6
Z

0.57 ≦ ρ < 0.60
0.60 ≦ ρ < 0.64
0.64 ≦ ρ < 0.70
0.70 ≦ ρ < 0.81
0.81 ≦ ρ < 1.04
1.04 ≦ ρ < 1.50
0.64 ≦ ρ < 0.68
0.68 ≦ ρ < 0.73
0.73 ≦ ρ < 0.81
0.81 ≦ ρ < 0.94
0.94 ≦ ρ < 1.22
1.22 ≦ ρ < 1.60
SpecialDesignCE
705 200
605 200510 200
410 200
310 200
210 200
710 200
610 200510 200
410 200
310 200
210 200
–
–

Float
L
756
655
554
453
352
250
760
659
558
457
356
254
–

Float
Float
★ For
■ For
low-viscosity high-viscosity
liquids
liquids
φ49

φ49

φ45

φ41
L

No.

L

Gasket: 3.3

Indication gap • A

FLOAT AVAILABILITY AND SIZES

Allowable measurement temperature and pressure
Float No. A to E, 1 to 6

1. Standard

T (°C) –196 –175 –150 –125 –100 –75 –50 –25
0
25
50
75
P (MPa) 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 12.8 11.9
T (°C) 100 125 150 175 200 225 250 275 300 325 350 375 400
P (MPa) 11.1 10.7 10.1 9.7 9.4 9.1 8.8 8.6 8.4 8.2 8.1 8.0 7.9

2
Heating / terminal insulation are to
be conducted onto chamber portion
only.
3

TG-L2262-E02

TOKYO KEISO CO., LTD.

13

FM MAG GAUGEADD-ON ALARM CONTACTS● Intrinsically safe version (FM - ■■■ -■S ■■)Alarm contact (s) can be provided to all FM Mag Gauges.
A reed switch is located at side portion of chamber which is actuated by the magnet in float. Watertight, Intrinsically safe as well as
Flameproof versions are available.

IS classification : Ex ia llC T6
		 (Subject to using of specified safety relay)

A safety relay is inserted into the contact loop of watertight version
to achieve Insrinsically safe loop.

Dimension of Safety Relay EB3C-R01A (1 point use)

MODEL CODE OF ALARM CONTACTS
5■6■7 / ■■■■
FM- ■■■ - ■■FM-1
Watertight (Non-explosion proof)
EnclosureEX-d, Flameproof
EX-i, Intrinsically safe

Contact

No. of contact

Terminal box

No. of terminal box

SPECIFICATION

Terminal box
AC2A( 7) MVVS

Case : AC2A
Cover : SPCC
Fitting : SUS

102

140

Note 1: When installing the insulating material,

G3/4

14

TOKYO KEISO CO., LTD.

T

do not install it around the alarm sensor.

T=H / 2–50 (mm)127

* Height ofterminal box

Installed terminal : 8P, M3.5 screws
Cable entries: For alarm switches
		 4 entries with packing type cable gland,
WeldedMax. cable dia. 7 mm
		 For alarm outlet
		 1 X G3/4 (Female)40: Depending on the lengthof chamber(No limitation)
Repeatability: ±15mm		(Equivalent to indicator accuracy)
Reset span
: Max. 30mm (Fixed)
Alarm action: High or Low
		 (To be specified. Alsoat field adjustable)
Setting range: 50mm (70 mm between H-L)
Min. gap between points :		50mm		 (Shorter gap on request)
Accessory: Surge suppressor intergrated
		 (It is not attached to IS version)­ he cable from a reed switch is
Terminal box: T		 drawn and it is used for terminal
		connection.

45

No. of contact

Reed switch

25● Watertight version (FM- ■ ■■ - ■ W ■■ )Type of contact: 1 X SPST(Self-holding contact)
Contact capacity : 10W, AC/DC
		 Max. voltage ; AC,DC 100V
Fluid temp.
: –10~200oC
Ambient temp.
: –10~60oC
Enclosure: Watertight

TG-L2262-E02

FM MAG GAUGE● Flameproof enclosure version (FM-1■■■- ■E■■)
Individual reed switch and terminals are capcellated in one pressure tight housing for each alarm contact.
Construction: Flameproof enclosure (d2G5) (No. T49972)
Type of contact : SPST (Self-holding contact)
Contact capacity : 10W, AC/DC
		 Max. voltage ; AC,DC 100V
No. of contact : Depending on the length of chamber(No limitation)
Repeatability: ±15mm
		 (Equivalent to indicator accuracy)
Reset span
: Max. 30mm (Fixed)
Alarm action: High or Low (To be specified.)
Setting range: From 100 mm above lower end to 100 mm
below upper end
Min. gap between points :		 250mm (Shorter gap on request)
Fluid temp.
: -10~200˚C
Amb. temp.
: -10~60˚C
Accessory: Surge suppressor integrated
Built-in terminal : 2P (M3)
Installation: Clamping onto chamber
Cable entry: 1XG1/2 (Female)Note: A cable gland is optional. A cable glandmust be used for the gauge to be approved as a flameproof enclosure. If provided by the customer, use the SXBM-16B
of Shimada Electric Co., Ltd.

76

Case, Cover:AC2A

55

121

82

TG-L2262-E02

G1/2

Terminal:M3

TOKYO KEISO CO., LTD.

15

FM MAG GAUGEADD-ON CURRENT LEVEL TRANSMITTER SPECIFICATION
Output span : Min. 0~250mm
		 Max. 0~4380mm
		 (Shorter output span than measuring range on		request)
Enclosure: 1) Watertight			 FM-1■■■ - ■■■■/ ■W ■■		 2) Flameproof			
FM-1■■■ - ■■■■/ ■E ■■		
Ex d IIB T6, RIIS certification No. TC14720
		 3) Intrinsically safe
			
FM-1■■■ - ■■■■/ ■S ■■		
Ex ia IIC T4, RIIS certification No. TC16354
Fluid temp. : –20~200˚C
Amb. temp. : –20~55˚CPower supply: Nominal DC24V
Max. load resistance		 Watertight (W)			
600Ω
		 Flameproof (E)			
600Ω
Intrinsically safe construction (600 – Resistance inside barrier)Ω
When using MTL7728+, 600 – 333 = 267ΩThe 4 to 20mA 2-wire current transmitter can be additionally provided for all types of FM-1000 Mag Gauge even together withalarm contact (s).
Watertight, Intrinsically safe and Flameproof versions are available
to meet area classification.

MODEL CODE OF ANALOG TRANSMITTER
FM-1

8

Enclosure

9 10

W

WatertightE

Flameproof
Intrinsically safe

S

Right hand sideR

Direction of sensor

Left hand sideL

Direction of Converter

R

Right hand side

L

Left hand side

(Cautions)
When using an MTL7728+ barrier for this intrinsically safe transmitter, the load must be connected to the positive (+) terminal,
because the negative (−) terminal is grounded.
When the load cannot be connected to the positive terminal, useof an MTL7787+ barrier is recommended.
Output accuracy : ±(0.2+ 10 ×100)% F.S.
H
		 H : Measuring range(mm)DIMENSION
Flameproof version (E)Watertight (W) and Intrinsically safe (S)CHAMBERSENSORCONVERTER

φ136
157

a. Sensor (Installed onto indicator housing)

55

IND.CASE

Measuring Range ・H

Right hand side

MVVS3 0.5

b. Convertor (Installed onto chamber)

20

Left hand sideh2

0%LEVEL(4mA)

Left hand side225
MVVS 3 0.5
Right hand side
To sensor

Note 1: The transmitter (4 to 20mA) shall be replaced or readjusted
after returning to Tokyo Keiso.
Note 2: When installing the insulating material, do not install it
around the detector.
16

TOKYO KEISO CO., LTD.

To lower limit of
Measuring Range ・H

G3/4

115

200mm above ZERO

Indicator

MVVS

142

33

Converter Chamber

DIFFERENCE・A
(110)

136

G3/4
*

Converter position ・Y

Indicator

Rated Span・Ｈ
h1

Sensor

100%LEVEL(20mA)

115

To converter

Span : H

22

Chamber

225

Sensor, Converter*: For the TIIS flameproof type, mount the flameproof cable glandincluded in the package, or one of those specified by
TOKYO KEISO, directly to the wiring port of the gauge. Use acable recommended for explosionproof wiring, such as acontrol cable (JIS C3401) or one with similar specifications.
Perform waterproof treatment by applying non-hardenablesealant, such as a liquid gasket, to the connection of the cablegland and the gauge.
TG-L2262-E02

FM MAG GAUGE

Typical specification sheet
Use following sheet for your inquiry or ordering

Model codeFM-1□□□-□□□□ / □□□Quantity

Density

Fluid

Viscosity

PressureMPa

Temperature°C

Measuring span(measuring range)mmConnection flange
size and rating

Other requirements* 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 : https://www.tokyokeiso.co.jp
TG-L2262-E02

TOKYO KEISO CO., LTD.

17