2-wire System Guided Radar Gauge

TGF6200
Micro Pulse Level Meter for Powders
and Granules
OUTLINE
The TGF6200 is a 2-wire continuous level measuring instrument using
TDR technology.
The simple and compact design suitable for tank-top installation withno moving parts achieves high cost performance with maintenancefree and low-cost installation.
This continuous level meter can per form continuous levelmeasurement in a wide range of applications including powders andgranules using a single probe for the sensor.
The keypad operation on the front display allows easy parametersetting including zero-point adjustment and measurement range.
This level meter is suitable for powder level control and capacity
management of silos.

FEATURES❏ Overall cost reduction achieved by the 2-wire system❏ A wide range of applications enabled by the TDR method❏ A broad operating range from -50°C to 200°C and from vacuum
to 4.0 MPa❏ Measurements are not affected by changes in temperature, pressure, or density❏ Possible to measure powders and granules❏ Switch output (option) is available in addition to analog output (4to 20 mA DC)❏ Japanese display is available in addition to English❏ Remote type housing is available in addition to compact typehousing to meet a broad range of installation requirements❏ Possible to check and change the parameters without opening
the cover❏ Possible to remove and rotate the converter housing without
opening the measurement tank
❏ Maintenance free as there are no moving parts

MEASURING PRINCIPLEThe TGF6200 is a continuous level meter using a proven technology
called Time Domain Reflectometry (TDR). The level meterintermittently transmits a very low output electromagnetic pulse
called a micropulse to the measuring object along a conductor
called a probe.
The transmitted micropulse travels at a very high speed along theprobe and reflects on the interface of gas and powders, granules,
etc. The reflected micropulse travels back along the probe and isreceived by the level meter.
The time of the micropulse traveling from the level meter to themeasurement surface can be obtained by dividing the measured
time of the micropulse that is transmitted and received by the level
meter by a factor of 2. The spatial distance from the level meter tothe measuring object can be calculated from the traveling speed ofthe micropulse.
The measured spatial distance is converted to a level value fromthe preset reference point or converted to a mass value from a
conversion table, and these values are output as current signals
according to the settings of the output range.
The traveling speed of the micropulse is almost constant. The
measurement results are affected very little by changes in thetemperature or pressure inside the measurement tank, and also are
not affected by changes in the temperature of the measuring object,or changes in the dielectric constant or bulk specific gravity.

① Transmitted pulse② Reflected pulse③ Signal waveform④ Measurement range⑤ Air: εr ≒ 1⑥ Measuring object: Dielectric constant εr > 1.6 (in direct mode)
εr > 1.1 (in TBF mode)
TG-L2252-E01
2nd edition Oct 2022 K
1st edition May 2022 K

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

STANDARD SPECIFICATIONSObjectItem
Measuring material
Measuring
Measuring principle
objectOutput variables
Probe type TGF6221
Output 1
Output 2 (option)
Current Resolution
outputTemperature drift
Error output
OutputLoad resistance *1
Output (option)
SwitchoutputContact capacity

Description
Powders, granules
Time Domain Reflectometry (TDR)
Level, distance, mass, volume
Single cable probe (ø8 mm)
4 to 20 mA DC or 3.8 to 20.5 mA DC
4 to 20 mA DC or 3.8 to 20.5 mA DC±3μA
Analog value: 50 ppm/K, digital value: ±15 mm (maximum specified temperature range)
22 mA DC, 3.6 mA DC, fixed (select from parameters)
The allowable load resistance varies with the supplied power voltage. See “Power supply voltage.”
Relay (1 contact, normal open)
24 V DC / 6 A, 24 V AC / 6 A: non-explosionproof, flameproof
24 V DC / 1.1 A, 24 V AC / 1.1 A: intrinsically safe
0.04 to 288 W (VA)

Accuracy: Accuracy
depend onreference
conditions±3 mm (less than 10 m), ±0.03 % / R.D. (10 m or more)
Reference conditions (at calibration)
Temperature: 15°C to 25°C
Pressure: 1013 mbar (a) ±50mbar
Humidity: 60% ±15%
Target: Metal plate

TBF mode: ±20 mm
0.1 mm±1 mm-40 to +200°C (sealing material: FPM / FKM)
Process connection-50 to +150°C (sealing material: EPDM)
temperature-20 to +200°C (sealing material: Kalrez® 6375)
MeasurePressure
0 kPa (abs) to 4.0 MPa
ment
conditions
1.6 or more
Dielectric constant *2
1.1 or more: TBF mode
Maximum rate of change
100 m/min (dependent on measurement conditions)
IEC60529: IP66 / IP68
Protection class
NEMA250: NEMA250: NEMA type 4X/6 (Converter housing), 6P (Probe housing)Level
Without display -40 to +80°C
meter
Ambient
specs
temperature With display-20 to +60°C (Display turns off automatically when temperature is out of range)
Storage temperature-50 to +85°C (Meter with display: -40°C to +85°C)Type
2-wire loop powered
Rated voltage: 24 V DC
Output 1(4 to 20 mA
Allowable range: 11.5 to 30 V DC: Non-explosionproof, intrinsically safe (Ex i)
DC)
Allowable range: 13.5 to 34 V DC: Flameproof (Ex d)
Rated voltage: 24 V DC
Output 2
Allowable range: 11.5 to 30 V DC: Non-explosionproof, intrinsically safe (Ex i)
Power supply (4 to 20 mA
DC)
Allowable range: 11.5 to 34 V DC: Flameproof device (Ex d)
Electric
Rated voltage: 24 V DC
Output 2
connection
Allowable range: 11.5 to 30 V DC / 30 mA: Intrinsically safe (Ex i)(Switchoutput)Allowable range: 11.5 to 34 V DC / 30 mA: Non-explosionproof, flameproof (Ex d)Cable entry
M20 × 1.5 female thread, 1/2” NPT female thread, G1/2 female thread (option)
Resolution
Repeatability

Cable outer diameter
Terminal
Housing
Process connection partMaterial
Probe
Seal
ThreadProcessconnection Flange
Display
Display
KeypadOutput 1:
6 to 7.5 mm: Non-explosionproof, intrinsically safe (Ex i), 7 to 10 mm: Flameproof device (Ex d)
Output 2:
6 to 12 mm: Non-explosionproof, intrinsically safe (Ex i), 7 to 12 mm: Flameproof device (Ex d)
0.5 to 2.5 mm2Aluminum alloy (polyester coating), stainless steel (SS316L)
Stainless steel (SS316L)
See “Probe specifications”
FKM / FPM, EPDM, Karlez® 6375
G male thread, NPT male thread
JIS RF flange, ASME RF flange
LCD 128 × 64 pixels in 8-step greyscale
English, Japanese, others
4 buttons (right, enter, up, down keys)
Operation by push button or magnet*1: See “Power supply voltage” for the level meter terminal voltage at 22 mA output.
*2: The minimum dielectric constant of measuring objects varies depending on the measurement conditions.
Measurement may not be possible in some measurement conditions.

2TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

PROBE SPECIFICATIONS
Probe type / length TGF6221
Type

Single cable probe (Ø8 mm) / 1 to 40 m
Top dead zone / non-linearity range

TGF6221: Single cable probe with a counter
50 mm / +150 mm
weight of Ø12 × 100 mm

20 mm

Minimum deadzone length / non- TGF6221: Single cable probe with a counter 50 mm / +150 mm
weight of Ø38 × 245 mm
linearity range
Above figures are minimum lengths of dead zone when auto setup is performed.
Dead zone length may require more than above depending on measurement conditions.
See “MEASUREMENT LIMITS”
Probe materials

TGF6221: Single cable probe (Ø8 mm)

Bottom dead zone

270 mmStainless steel (SS316)* Process connection part, counter weight: Stainless steel (SS316L), other: PTFEDIMENSIONS
Housing and process connection
Compact type housing
・Process connection: Thread
Non-explosionproof and intrinsically safe 1 output

Flameproof and 2 outputs

・Process connection: Flange
Non-explosionproof and intrinsically safe 1 output

TG-L2252-E01

Flameproof and 2 outputs

TOKYO KEISO CO., LTD.

3

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Remote type housing
Non-explosionproof and intrinsically safe 1 output

Remote typeconverter housing

Remote typeprobe housing

Flameproof and 2 outputs

Remote typeconverter housing

Remote typeprobe housing

4

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Probe
Single cable probe①① Single cable probe(with a counter weight of ø12 × 100 mm)

TG-L2252-E01②② Single cable probe(with a counter weight of ø38 × 245 mm)

TOKYO KEISO CO., LTD.

5

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Weather protection
c

d

d

b

d

①

a

c

d

b

d

②

a

Dimension [mm]Housing type

a
243
243

① For non-explosionproof and intrinsically safe 1 output② For flameproof and 2 outputs

b
118
118

c
96
166

d
77
77

Mass
Probe

Housing
Mass [kg]Aluminum
Stainlesshousingsteel housing
Non-explosionproof and intrinsically safe 1 output housing
Compact type housing
2.8
6.4
Remote type converter housing
2.5
5.9
Remote type probe housing
1.8
3.9
Flameproof, 2 outputs housing
Compact type housing
3.2
7.5
Remote type converter housing
2.9
7.1
Remote type probe housin
1.8
3.9
Housing type

Probe type
Single cable probe Ø8 mm

Mass *1[kg/m]
0.4*1 Counter weight and flange are not included in the mass.

Process connection part
Process connection partThread connection
Flange connection

Mass
[kg]
2.5
4 to 36.5

Weather protection
Housing typeNon-explosionproof and intrinsically safe 1 output
housing
Flameproof and 2 outputs housing

6

TOKYO KEISO CO., LTD.

Mass [kg]1.3
1.5

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

MEASUREMENT LIMITSSingle probes
ձ

ղ
ն
ճ

չ ո

շ
պ

մ
յ

① Single cable probe ② Top dead zone: Top part of the probe where measurement is not possible⑥ Gas phase③ Top non-linearity zone: Top part of the probe where accuracy is out of guaranteed range⑦ Measuring object④ Bottom non-linearity zone: Bottom part of the probe where accuracy is out of guaranteed range ⑧ Probe length⑤ Bottom dead zone: Bottom part of the probe where measurement is not possible⑨ Measurement tank height⑩ Required minimum distance(from the probe to a tank wall):
300 mmDead zone and non-linearity zone
>40

Dielectric constant of measuring object (εr)≤40Dead zone

Top ②

Bottom ⑤

Top ②

Bottom ⑤

Single cable probe ø8 mm(with a counter weight of ø12 × 100 mm)

50

20

50

60

Single cable probe ø8 mm(with a counter weight of ø38 × 245 mm)

50

270

50

370
（mm）

>40

Dielectric constant of measuring object (εr)≤40Non-linearity zone

Top ③

Bottom ④

Top ③

Bottom ④

Single cable probe ø8 mm(with a counter weight of ø12 × 100 mm)

150

0

150

0

Single cable probe ø8 mm(with a counter weight of ø38 × 245 mm)

150

0

150

0
（mm）

Note: Values are those when auto setup is performed. When auto setup is not performed, the values in the dead zone and non-linearity zone will increase.

TG-L2252-E01

TOKYO KEISO CO., LTD.

7

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

WIRING
Terminals
Compact type converter housing
Current output (1 output)① Power supply terminal (for level meter operation and current output 1)② Grounding terminal inside housing (for shielded signal cable)③ Grounding terminal (at the lower part of the converter housing)Standard(Non-Ex)/Intrinsically safeStandard(Non-Ex)/Intrinsically

Flameproo
Flameproof

②

＋−
②

Current output (2 outputs)① Power supply terminal (for level meter operation and current output 1)② Power supply terminal (for current output 2)③ Grounding terminal (at the lower part of the converter housing)④ Grounding terminal inside housing (used shielded signal cable)

Current output (1 output) + switch output① Power supply terminal (for level meter operation and current output 1)② Power supply terminal (for switch output)③ Switch output terminal④ Grounding terminal (at the lower part of the converter housing)⑤ Grounding terminal inside housing (for shielded signal cable)

8

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Remote type converter housing
Current output (1 output)① Power supply terminal (for level meter operation and current output 1)② Grounding terminal inside housing (for shielded signal cable)③ Grounding terminal (for mount support)

Standard(Non-Ex)/Intrinsically safeStandard(Non-Ex)/Intrinsically

Flameproo
Flameproof③②

Current output (2 outputs)① Power supply terminal (for level meter operation and current output 1)② Power supply terminal (for current output 2)③ Grounding terminal (for mount support)④ Grounding terminal inside housing (for shielded signal cable)

Current output (1 output) + switch output① Power supply terminal (for level meter operation and current output 1)② Power supply terminal (for switch output)③ Switch output terminal④ Grounding terminal (for mount support)⑤ Grounding terminal inside housing (for shielded signal cable)

TG-L2252-E01

TOKYO KEISO CO., LTD.

9

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Wiring connection between remote type converter and probe① Remote type converter housing② Remote type probe housing③ Power supply cable (−)④ Power supply cable (+)⑤ Digital communication cable (B)⑥ Digital communication cable (A)⑦ Shielded wire connected to the grounding terminals inside converter housing and probe housing

Wiring• Use a 0.5 to 2.5 mm2 stranded cable for the signal cable.
• Strip the cable sheath 5 to 7 mm and insert it into the terminal.
• Lay the signal cable away from power cables.
• Separate the power supply from the power supply of other devices.
• We recommend to use a shielded cable.

When using with current output (1 output)

③
①

②

⑥

④

⑤

① Power supply for level meter operation and output 1② Resistance for HART communication (required when using the HART communication)③ Grounding④ Level meter operation power supply and output 1 cables: 2-wire loop powered system (supplying 24 V DC and outputting 4 to
20 mA DC)
⑤ Level meter terminals⑥ Level meter operation power supply and output 1 terminal

10

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

When using with current output (2 outputs)

③
⑥
①

②

④

⑤
⑨
⑧

⑦

① Power supply for level meter operation and output 1② Resistance for HART communication (required when using the HART communication)③ Grounding④ Level meter operation power supply and output 1 cables: 2-wire loop powered system (supplying 24 V DC and outputting 4 to
20 mA DC)
⑤ Level meter terminals⑥ Level meter operation power supply and output 1 terminal⑦ Power supply for output 2⑧ Output 2 cable: 2-wire loop powered system (supplying 24 V DC and outputting 4 to 20 mA DC)⑨ Output 2 terminal

When using with current output (1 output) + switch output

電流出力１ ：２線伝送式③
⑥
①

②

④
⑤
⑨

⑦

⑧
スイッチ出力 ：４線式⑫⑪⑩

① Power supply for level meter operation and output 1② Resistance for HART communication (required when using the HART communication)③ Grounding④ Level meter operation power supply and output 1 cables: 2-wire loop powered system (supplying 24 V DC and outputting 4 to
20 mA DC)
⑤ Level meter terminals⑥ Level meter operation power supply and output 1 terminal⑦ Switch output power supply⑧ Switch output power supply cable: Supplying 24 V DC
⑨ Switch output power supply terminal⑩ Switch output cable⑪ Switch output terminal⑫ PLC, sequencer, etc.
TG-L2252-E01

TOKYO KEISO CO., LTD.

11

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

POWER SUPPLY
The following graph shows the minimum supply voltage when a load resistance is included in the loop.
*: Minimum required voltage at a current output of 22 mA (and switch output of 30 mA) at the level meter terminals

Non-explosionproof and intrinsically safe level meter

Load resistance (Ω)

Supply voltage: 11.5 to 30 V DC

① Current output 1 and current output 2② Switch output

Supply voltage (V)Flameproof level meter

Load resistance (Ω)

Supply voltage: 13.5 to 34 V DC (11.5 to 34 V DC)① Current output 1② Current output 2

Supply voltage (V)③ Switch output

12

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

EXPLOSIONPROOF SPECIFICATIONSTGF6200F remote type converter housing

Japan explosionproof (TGF6200C-JEx, TGF6200F-JEx)
Certificate No.: CML 22JPN2442X
Marking:

Temperature
class

Maximum
surfacetemperature

T6

T85°C

T5

T100°C

T4

T135°C

T3

T200°C

Compact type (C) or remote type sensor (probe) housing (S)Ex ia IIC T6...T3 Ga/Gb
Ex ia IIIC T85°C...T*°C Da/Db
Ex ia/db IIC T6...T3 Ga/Gb
Ex ia/tb IIIC T85°C...T*°C Da/Db
Remote type converter housing (F) or remote type converter housing+ remote type sensor (probe) housing (D)Converter housing
Ex ia [ia Ga] IIC T6...T4 Gb
Ex ia [ia Da] IIIC T85°C...T135°C Db
Ex db ia [ia Ga] IIC T6...T4 Gb
Ex ia tb [ia Da] IIIC T85°C...T135°C Db
Sensor (probe) housing
Ex ia IIC T6...T3 Ga/Gb
Ex ia IIIC T85°C...T*°C Da/Db
T*°C = T150°C or T200°C

Maximum
Maximum ambient temperatureprocess
temperatureor maximum
Stainless steel
process
Aluminum housing
housing
connection parttemperature
+60°C
+85°C
+75°C
+100°C+110°C+135°C+150°C+180°C *1+200°C *1

+50°C
+50°C
+45°C
+44°C
+65°C
+65°C
+60°C
+59°C
+77°C [+70°C *2] +74°C [+70°C *2]
+69°C
+63°C
+65°C
+56°C
+56°C
+43°C
+50°C
+35°C

*1: Maximum process connection part temperature is +150°C when sealing material is EPDM.
*2: Values in parentheses are with optional explosionproof cable glands

ATEX explosionproof
Certificate No.: CSANe 22ATEX1038X
Marking:
II 1/2 G

Compact type (C) or remote type sensor (probe) housing (S)Ex ia IIC T6...T3 Ga/Gb
Ex ia IIIC T85°C...T*°C Da/Db
II 1/2 D
Ex ia/db IIC T6...T3 Ga/Gb
Ex ia/tb IIIC T85°C...T*°C Da/Db

Remote type converter housing (F) or remote type converter housing+ remote type sensor (probe) housing (D)Converter housing
Ex ia[ia Da] IIIC T85°C...T135°C Db
Ex ia [ia Ga] IIC T6...T4 Gb
II 2 (1) D
II 2 (1) GEx ia tb[ia Da] IIIC T85°C...T135°C
Ex db ia [ia Ga] IIC T6...T4 Gb II 1/2 D
Db
Sensor (probe) housing
II 1/2 G Ex ia IIC T6...T3 Ga/Gb
II 1/2 D Ex ia IIIC T85°C...T*°C Da/Db

Temperature
class

Maximum
surfacetemperature

Minimum
process
temperatureor minimum
processconnection parttemperature

All

All

–40°C *3
–50°C *3

Switch output circuit

Remote type converter housing (F) or remote type converter housing+ remote type sensor (probe) housing (D)Converter housing
Ex ia [ia Ga] IIC T6...T4 Gb
Ex ia [ia Da] IIIC T85°C...T135°C Db
Ex db ia [ia Ga] IIC T6...T4 Gb
Ex ia tb [ia Da] IIIC T85°C...T135°C Db
Sensor (probe) housing
Ex ia IIC T6...T3 Ga/Gb
Ex ia IIIC T85°C...T*°C Da/Db
T*°C = T150°C or T200°C

Stainless steel
housing

–40°C
–36°C

–40°C
–35°C

When using an intrinsically safe [ia] level meter with 4 to 20 mA output, strictly observe
the following rated circuit values as maximum values.

Power supply / 4 to 20 mA
circuit (Output 1 terminal)
Power supply / 4 to 20 mA
circuit (Output 2 terminal)

Compact type (C) or remote type sensor (probe) housing (S)Ex ia IIC T6...T3 Ga/Gb
Ex ia IIIC T85°C...T*°C Da/Db
Ex ia/db IIC T6...T3 Ga/Gb
Ex ia/tb IIIC T85°C...T*°C Da/Db

Aluminum
housing*3: Minimum process connection part temperature is -20°C when sealing material is Kalrez.
Minimum process connection part temperature is -40°C when sealing material is FKM/FPM.

T*°C = T150°C or T200°C

IECEx explosionproof
Certificate No.: IECEx CSAE 22.0026X
Marking:

Minimum ambient temperature

Ui
(V)

Ii
(mA)

Pi
(W)

Ci
(nF)

Li
(µH)

30

300

1

7

18

30

300

0.75

5

2

24

1100

25 (VA)00

When using a flameproof level meter, strictly observe the following rated values.
Power supply / 4 to 20 mA
circuit (Output 1 terminal)
Power supply / 4 to 20 mA
circuit (Output 2 terminal)
Switch output circuit

Max. 34Vdc/22mA
Max. 34Vdc/30mA
Max. 24Vdc/6A or 48Vac/6A• Use an intrinsically safe barrier when using the TGF6200 in a hazardous area as an
intrinsically safe level meter.
• Observe the specifications and instructions in “EXPLOSIONPROOF SPECIFICATIONS”
when using the TGF6200 as an explosionproof level meter.
• When using an isolation barrier, check the required power supply of the barrier.

TGF6200C compact type housing

Temperature
class

Maximum
surfacetemperature

T6

T85°C

T5

T100°C

T4

T135°C

T3

T200°C

Maximum
Maximum ambient temperatureprocess
temperatureor maximum
Stainless steel
process
Aluminum housing
housing
connection parttemperature
+60°C
+85°C
+75°C
+100°C+110°C+135°C+150°C+180°C *1+200°C *1

+54°C
+52°C
+69°C
+67°C

+54°C
+52°C
+69°C
+67°C
+78°C [+70°C *2] +76°C [+70°C *2]+71°C [+70°C *2]
+67°C
+66°C
+62°C
+58°C
+51°C
+53°C
+44°C

*1: Maximum process connection part temperature is +150°C when sealing material is EPDM.
*2: Values in parentheses are with optional explosionproof cable glands

Temperature
class

Maximum
surfacetemperature

Minimum
process
temperatureor minimum
processconnection parttemperature

All

All

–40°C *3
–50°C *3

Minimum ambient temperature

Aluminum
housing

Stainless steel
housing

–40°C
–37°C

–40°C
–36°C

*3: Minimum process connection part temperature is -20°C when sealing material is Kalrez.
Minimum process connection part temperature is -40°C when sealing material is FKM/FPM.

TG-L2252-E01

TOKYO KEISO CO., LTD.

13

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

PRECAUTIONS FOR INSTALLING AND USING TGF6200
Observe the following instructions when installing and using the TGF6200 level meter.
• Install the level meter in a location with an ambient temperature range of -40 to + 80°C (-20 to + 60°C for a level meter with display) aroundthe housing.
• Provide weather protection or the like when using the level meter outdoors.
• In particular, provide weather protection or the like in a location exposed to direct sunshine or harsh weather conditions.
• Do not install the level meter in a location exposed to strong vibration.
• Determine the installation location, height, and measurement zone considering the dead zone (non-measurable zone) of the level meter. The
dead zone varies depending on the counter weight to be used and measurement conditions. See “MEASUREMENT LIMITS”• When installing multiple level meters on the same tank, install them far enough apart from each other to prevent the cable probes frombecoming entangled due to the movement of particles or granules. Install them at least 1 m apart from each other.
• ln order to prevent the cable from slackening when using the cable probe, keep the counter weight at a level above the tank bottom.
• Consider the shape and location of the nozzle so the probe does not contact the nozzle or tank wall.
• The tensile load is dependent on the height and diameter of the silo, type of measuring object, and particle size and density. Do not apply
a load exceeding 46.69 kN to the cable probe because doing so may damage or break it. Also make sure that the roof the silo is resistant to
deformation by high loads.
• There is a risk of electrostatic discharge (ESD). The TGF6200 can withstand up to 30 Kv of ESD. Nevertheless, implement electrostatic
discharge measures. Be sure to ground the housing of the level meter.
• Install the level meter in a location where the probe is not affected by the particles or granules introduced into the tank. Otherwise, amalfunction will occur.
• If you cannot change the installation location of the level meter and the probe is affected by the particles or granules, take necessary
measures such as changing the direction of the flow of the particles or granules.

① Install the level meter in a location where the probe is not affected by the particles or granules introduced into the tank.
② If you install the probe in a location where the probe is affected by the particles or granules introduced into the tank,proper measurement will not be possible.
If the installation location of the level meter is near the inlet, take necessary measures such as changing the direction of
the flow of the particles or granules to prevent the particles or granules from affecting the probe.

14

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200
We recommend to install the level meter on the roof of the tank.
When measuring sticky substances, make sure that the substance does not stick to the inside of the nozzle.

① When measuring sticky substances, install the level meter in such a way that the substance does not stick to the inside of theinstalled nozzle.
② When installing the level meter on a flange, we recommend to install the flange on the roof of the tank without installing a nozzle.
③ We recommend to install a socket on the roof of the tank and then install the level meter by threading it into the socket.
When installing the level meter on the installed nozzle, make sure that the nozzle is not long and thin, and the lower end of the probe
does not protrude into the inside of the tank.

① When installing the level meter on a flanged nozzle, make sure that the nozzle length is 150 mm or less, or the nozzle diameter (d)is equal to or larger than the nozzle height (h).
If this requirement is not met, the minimum required length of the dead zone will start with the lower end of the nozzle so the deadzone may be longer, or a malfunction may result.
② Make sure that the lower end of the nozzle does not protrude into the inside of the tank.
We recommend to install the level meter by threading it into the socket.

① We recommend to install the level meter using a socket.
② Make sure that the lower end of the socket does not protrude into the inside of the tank.

TG-L2252-E01

TOKYO KEISO CO., LTD.

15

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Installing a probe on the concrete roof
① When installing a probe on the concrete roof, make sure that the concrete hole diameter (d) is larger than the concrete thickness (t) (+installed nozzle).
Make sure that the hole inner surface is smooth.
② When the concrete thickness (t) is larger than the hole diameter (d), do not install the probe on the concrete but enlarge the hole and theninstall the probe on a metal pedestal.

① Make sure that the hole diameter (d) is larger than or equal to the concrete thickness (t).
② When the concrete thickness (t) is larger than the hole diameter (d), enlarge the hole diameter and then install the probe.
If you cannot enlarge the hole diameter, extend the top dead zone to a position of 200 mm from below the concrete (slab).

Precautions for installation
When installing a TGF6200 level meter on the tank, do not install it near obstacles in the tank but install it in a location at a distance from the
obstacles.

①②① Make sure that there is no obstacle in the impact range of micropulse around the probe. Make sure that the probe is always
straight and not slack inside the pipe.
We recommend that the spatial distance (d) between the top of the counter weight of the probe terminal and the bottom of thetank is d or larger (300 mm + counter weight length).
② The distance required between the probe and obstacles is 300 mm or more.
If introducing or discharging powder is expected to move the probe, place it a distance away from the obstacles in consideration
also of that amount of movement so that it will not become entangled.
Install the probe so the probe terminal does not contact the tank (silo) bottom.

16

TOKYO KEISO CO., LTD.

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

MODEL AND SPECIFICATION CODESTGF6200 cable probes
Spec. code

TGF6200 4 4 W

0

0

0

0 0

Description
Standard (Non-Ex)
ATEX: Intrinsic safety
II 1/2 G Ex ia IIC T6...T3 Ga/Gb, II 1/2 D Ex ia IIIC T85°C...T*℃ Da/Db/

0
1

ATEX: Flameproof enclosure / Dust ingnition protection
II 1/2 G Ex ia/db IIC T6...T3 Ga/Gb,
II 1/2 D Ex ia/tb IIIC T85°C...T*°C Da/Db
IECEx: Intrinsic safety
Ex ia IIC T6...T3 Ga/Gb, Ex ia IIIC T85°C...T*°C Da/Db
IECEx: Flameproof enclosure / Dust ingnition protection
Ex ia/db IIC T6...T3 Ga/Gb, Ex ia/tb IIIC T85°C...T*°C Da/Db
JPN Ex: Intrinsic safety（TGF6200C-JEx or TGF6200F-JEx）
Ex ia IIC T6...T3 Ga/Gb, Ex ia IIIC T85°C...T*°C Da/Db

2

ApprovalK
LU

JPN Ex: Flameproof enclosure /Dust ingnition protection（TGF6200C-JEx or TGF6200F-JEx）
Ex ia/db IIC T6...T3 Ga/Gb, II 1/2 D Ex ia/tb IIIC T85°C...T*°C Da/Db

W

Fixed code

Allways 0
Without
NACE MR0175 (ISO 15156), MR0103 (ISO 17945)
Compact type（Alminum）
Compact type（Stainless steel）
Remote type（Alminum）※1
Remote type（Stainless steel）※1
2-wire / 4-20mA passive (HART)×1output
2×2-wire / 4-20mA passive (HART) + 4-20mA passive
2-wire + 4-wire / 4-20mA passive (HART) + switch output - Relay

0
0

Other approval

3
2
3

Housing type / material

781Output2
3

M20×1.5 / without（Cable entry: For G 1/2 female thread, select M20×G 1/2 adapter as an option.）（For JPN Ex of flameproof / dust ingnition, select the Flameproof cable gland(G 1/2) as an option.）1

M20×1.5 / 1×Plastic (ATEX/IECEx：Not for Ex d ia）
M20×1.5 / 1×Nickel-plated brass
M20×1.5 / 1×Stainless steel
M20×1.5 / 2×Plastic（2 output）(ATEX/IECEx：Not for Ex d ia）
M20×1.5 / 2×Nickel-plated brass（2 output）
M20×1.5 / 2×Stainless steel（2 output）
1/2"NPT / 1×Nickel-plated brass
1/2"NPT / 2×Nickel-plated brass（2 output）
Display for Remote type
Display for Compact type2
3

Cable entry / cable gland

4
6
7
8
D
F
4

Display / Housing orientation

6

EnglishJapanese
Allways 0
FKM/FPM/ –40...+200°C/ 0kPa (abs) ... 4MPa
Karlez® 6375
/ –20...+200°C/ 0kPa (abs) ... 4MPa
EPDM
/ –50...+150°C/ 0kPa (abs) ... 4MPa
Single cable - ø8 mm, Weight ø12×100mm / SS316 (1.4401)/ 1...40 m
Single Cable - ø8 mm, Weight ø38×245mm / SS316 (1.4401)/ 1...40 m
Allways 0
G 1-1/2 A
1-1/2 NPT
1-1/2" 150lb RF
2" 150lb RF
3" 150lb RF
4" 150lb RF
6" 150lb RF
8" 150lb RF
50A JIS10K RF
80A JIS10K RF
100A JIS10K RF
Allways 00
Indoor: Without weather protection

1

Display / Language

7

Fixed code0
1

Process seal：Material / Temp. / Press.

23
6

Probe type / Material / Length7

Fixed code0

Threaded

G P 0
G A 0
G 1 A
H 1 A

Process connection

Flanged - ASME

L 1 A
M 1 A
P 1 A
R 1 A
H U P

Flanged - JIS

L U P
M U P

Fixed code
Installation location
Probe length
Special specification

0 0
0Outdoor: With weather protection

1

cm (Specify the length in the unit of cm) ※2/

blank None/Z

For special requirements ※3※1：When selecting a remote converter housing,specify the signal cable length (1 m to 100 m) between the probe housing and the converter housing.

Signal (RS485) cable length（1 m...100 m)m※2：Specify the length of probe in integer of 4 digits in the unit of cm.
For example : Specify as "0258" cm for the length of 2580 mm and "1258" cm for 12.58 m.
The smaller length than 1 cm is not allowed.
※3： Special requirements not included in the above coding system should be designated by adding "/Z"at the end of the code.
Consult us for the availability of such requirements before ordering.

TG-L2252-E01

TOKYO KEISO CO., LTD.

17

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

STANDARD ACCESSORIESORDERING INSTRUCTIONS• Parameter sheet

1. Model and spec code:1

• Instruction manual : 1• Strap wrench

Example) Model: TGF6221:1

Spec code: TGF620044W000211670160MUP001/0500
2. Probe length Specify the length in centimeters.

OPTION

3. Option (if required)Enter a symbol (see OPTION).

• M20×G1/2 female adapter: [GA]4. Special feature (if required)

1 output: Female adapter×1, plug×1

Describe the special feature you need.

2 outputs: Female adapter×2

Please consult with us about the availability beforehand.

• Explosionproof cable gland (G1/2): [DG]* Intrinsically safe barrier (sold separately)
Isolation barrier: KFD2-STC4-Ex1 (mounted on a DIN rail)This barrier is required when using the TGF6200 in ahazardous location as an intrinsically safe level meter.

Service temperature -40°C to +80°C
1 output: Cable gland×1, plug×1
2 outputs: Cable gland×2• Output range individual data configuration: [DS]ORDERING INFORMATION
Measuring object
Substance name: (Dielectric constant
Bulk specific gravity
Substance property
Corrosion property
Adhesive property
Crystalline property): εr ():(): □ Powder (particle size:mm) □ Granule (particle size:: □ No□ Slightly corrosive□ Heavily corrosive: □ No□ Slightly adhesive□ Heavily adhesive: □ No□ Slightly crystalline□ Heavily crystallineemm)

Operating conditions
Operating environment: □ Outdoors
Measuring object temperature : () °C
Ambient temperature:() °C
Pressure:() MPa
Explosionproof: □ Not require□ Indoors□ Required

Tank conditions
Shape
HeightDiameter or width
Obstacles inside tank
Tank material
Transport method: □ Silo□ Tank□ Other:():(): □ No □ Yes □ Thermometer □ Level switch □ Reinforcement or stay □ Ladder □ Other: □ Metal ()
Coating: □ Yes □ No
□ Non-metal (): □ Belt conveyor □ Bucket conveyor □ Belt conveyor □ Screw feeder□ Air pressure feeder □ Direct introduction □ Bag filter □ Cyclone□ Other ()

Installation conditions
Location

Nozzle18: Distance from tank wall (Distance from inlet (Distance from obstacle (: Diameter () mmLength () mmTOKYO KEISO CO., LTD.

) mm
) mm
) mm

TG-L2252-E01

2-wire System Guided Radar Gauge Micro Pulse Level Meter for Powders and Granules TGF6200

Measurement conditions
Measurement method:□ Level measurement□ Distance measurement

100%

0%

0%

100%

Measurement range:

Distance from process connection part to minimum level
DL: (

) mm

Distance from process connection part to maximum level
DH: (

) mm

DH

DH

DL

□ Flange connection
Baseline positionDL□ Thread connection (threaded flange)
Baseline position (thread top)

(flange bottom surface)* 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-L2252-E01

TOKYO KEISO CO., LTD.

19