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Measuring system

Measuring principle

2-wire loop-powered level transmitter; K-band (24...26 GHz) FMCW radar

Application range

Level measurement of powders and granulates

Primary measured value

Δf (change in frequency) between the emitted and received signal

Secondary measured value

Distance， level， volume， mass and reflectivity

Design

Construction

The measurement system consists of a measuring sensor (antenna) and a signal converter which is only available in a compact version

Standard

Antenna purging system for horn antenna (supplied with a ¼ NPTF connection – for horn antenna only)

Options

Integrated LCD display with sun cover -4…+140°F (-20..+60°C); if the ambient temperature is not in these limits， the display switches off

2nd current output

PTFE/PP flange plate protection (for drop antenna without antenna extensions only)

Distance piece for process temperature：  +300...+390°F (+150...+200°C)

Accessories

Weather protection

Antenna extensions of 4.1 in (105mm) length. Maximum length for drop antenna versions： 20.7 in (525mm)

2° slanted PP flange (for all antennas)

Max. measuring range

260 ft (80 m)

Depends on the antenna option， dielectric constant of the product and installation type. Refer also to "Antenna selection".

Min. tank height

 8 in (0.2 m)

Dead zone

Antenna extension length+antenna length， 12 in (+ 0.3 m)

Beam angle of antenna

Horn / Sheet metal horn DN80 / 3 in： 10°

Horn / Sheet metal horn DN100 / 4 in： 8°

Sheet metal horn DN150 / 6 in： 8°

Sheet metal horn DN200 / 8 in： 8°

drop DN80 / 3 in： 8°

drop DN150 / 6 in： 4°

Display and user interface

Display

LCD display

9 lines， 160 × 160 pixels in 8-step grayscale with 4-button keypad

Interface languages

English， German， French， Italian， Spanish， Portuguese， Japanese， Simplified
Chinese and Russian

Measurement accuracy

Resolution

0.04 in (1mm)

Repeatability

±0.04 in (±1mm)

Accuracy

±0.12 in (±3mm)， when distance < 33 ft (10 m);
±0.03% of measured distance， when distance > 33 ft (10 m)

Reference conditions acc. to EN 60770

Temperature

 +70°F ±10°F (+20°C ±5°C)

Pressure

 14.69 psia ±0.29 psi (1013 mbara ±20 mbar)

Relative air humidity

60% ±15%

Target

Metal plate in an anechoic chamber

Operating conditions

Temperature

Ambient temperature

-40…+175°F (-40…+80°C) (according to the temperature limits of the gasket material. Refer to "Materials" in this table.)
Ex： see supplementary operating instructions or approval certificates

Storage temperature

-40…+185°F (-40…+85°C)

Flange temperature

Horn / Sheet metal horn antenna： 
Standard： -58…+300°F (-50…+150°C) Option：  -58…+390°F (-50…+200°C)
(the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.)
Ex： see supplementary operating instructions or approval certificates

drop antenna (PTFE)：
-58…+300°F  (-50…+150°C) (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex： see supplementary operating instructions or approval certificates

drop antenna (PP)：
-40…+210°F  (-40…+100°C) (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex： see supplementary operating instructions or approval certificates

Pressure

Operating pressure

drop antenna (PP)：
-14.5…232 psig (-1…16 barg);
subject to process connection used and flange temperature

drop antenna (PTFE)：
-14.5…580 psig (-1…40 barg);
subject to process connection used and flange temperature

Horn / Sheet metal horn antenna： Standard：
-1…40 barg / -14.5…580 psig;
subject to process connection used and flange temperature

Other conditions

Dielectric constant (?r)

≥1.5

Vibration resistance

IEC 60068-2-6 and EN 50178 (10...57Hz： 0.075mm / 57...150Hz：1g)

Protection category

IP 66/67 equivalent to NEMA type 4X (housing) and type 6P (antenna)

Maximum rate of change

 33 ft / minute (10 m / minute)

Installation conditions

Process connection size

The nominal diameter (DN) should be equal to or larger than the antenna diameter.

If the nominal diameter (DN) is smaller than the antenna， either： – provide the means to adapt the device to a larger process connection on the silo (for example， a plate with a slot)， or – use the same process connection， but remove the antenna from the device before installation and fit it from inside the silo

Process connection position

Make sure that there are not any obstructions directly below the process connection for the device.

Dimensions and weights

Refer to "Technical data： Dimensions and weights".

Materials

Housing

Standard： Polyester-coated aluminium

Option： Stainless steel (1.4404 / 316L) 1

Wetted parts， including antenna

Horn / Sheet metal horn antenna： Stainless steel (1.4404 / 316L)

drop antenna： PTFE; PP – a PP or PTFE flange plate protection option is also available

Process connection

Stainless steel (1.4404 / 316L) – a PP or PTFE flange plate protection option is also available for the drop antenna

Gaskets (and o-rings for the sealed antenna extension option)

PTFE drop antenna：
FKM/FPM -40…+300°F (-40…+150°C); Kalrez® 6375  -4…+300°F (-20…+150°C); EPDM -58…+300°F (-50°C…+150°C) 2

PP drop antenna：
FKM/FPM  -40…+210°F (-40…+100°C); Kalrez® 6375 -4…+210°F (-20…+100°C); EPDM -40…+210°F (-40°C…+100°C) 2

Horn / Sheet metal horn antenna：
FKM/FPM -40…+390°F (-40…+200°C); Kalrez® 6375 -4…+390°F (-20…+200°C); EPDM -58…+300°F (-50°C…+150°C) 2

Feedthrough

Standard： PEI -58...+390°F (-50...+200°C) – max. range. The feedthrough temperature limits must agree with the temperature limits of the gasket material and antenna type. If the distance piece option is not attached， the maximum temperature is 300°F (150°C).

Option： Metaglas® -22...+390°F (-30...+200°C) – max. range. The feedthrough temperature limits must agree with the temperature limits of the gasket material and antenna type. If the distance piece option is not attached， the maximum temperature is 300°F (150°C). 3

Weather protection (Option)

Stainless steel (1.4301 / 304)

Process connections

Thread

G 1½ (ISO 228); 1½ NPT (ASME B1.20.1)

Flange version

EN 1092-1

DN80 in PN40， DN100…200 in PN16 or PN40 (Form B1); others on request

ASME B16.5

3 in…8 in in 150 lb RF， 3 in...4 in in 300 lb RF; others on request

JIS B2220

80…100A in 10K; others on request

Other

Others on request

Electrical connections

Power supply

Terminals output 1 – Non-Ex / Ex i：
14…30 VDC; min./max. value for an output of 22mA at the terminal

Terminals output 1 – Ex d：
20…36 VDC; min./max. value for an output of 22mA at the terminal

Terminals output 2 – Non-Ex / Ex i / Ex d：
10…30 VDC; min./max. value for an output of 22mA at the terminal (additional power supply needed – output only)

Cable entry

M20×1.5; ½ NPT

G ½ (not for FM- and CSA-approved devices. Not for stainless steel housings.)

M25×1.5 (for stainless steel housings only)

Cable gland

Standard： none

Options： M20×1.5 (for non-Ex and Ex -approved devices with M20×1.5 and M25×1.5 cable entries); others are available on request

Cable entry capacity (terminal)

0.5…1.5mm²

Input and output

Current output

Output signal
(Output 1)

4…20mA HART® or 3.8…20.5mA acc. to NAMUR NE 43 4

Output signal
(Output 2 - optional)

4…20mA (no HART® signal) or 3.8…20.5mA acc. to NAMUR NE 43

Resolution

±3 µA

Temperature drift

Typically 25 ppm/K

Error signal

High： 22mA; Low： 3.6mA acc. to NAMUR NE 43

Approvals and certification

CE

This device fulfils the statutory requirements of the EC directives. The manufacturer certifies successful testing of the product by applying the CE mark.

Explosion protection

ATEX
KEMA 04ATEX1218 X

II 1 G， 1/2 G， 2 G Ex ia IIC T6...T3;

II 1 D， 1/2 D， 2 D Ex iaD20or Ex iaD 20/21 or Ex iaD 21 IP6X T70°C...T95°C;

II 1/2 G， 2 G Ex d[ia] IIC T6...T3;

II 1/2 D， 2 D Ex tD[iaD] A21/20 or Ex tD[iaD] A21 IP6X T70°C...T95°C

IECEx
IECEx KEM 06.0025 X

Ga Ex ia IIC T6…T3; Ex iaD20IP6X T70°C…T95°C;

Ga/Gb Ex d[ia] IIC T6…T3; Ex tD[iaD] A21/20 IP6X T70°C…T95°C

FM – Dual Seal-approved

NEC 500

XP-IS / Cl. I / Div. 1 / Gr. ABCD / T6-T1;

DIP / Cl. II， III / Div. 1 / Gr. EFG / T6-T1;

IS / Cl. I， II， III / Div. 1 / Gr. ABCDEFG / T6-T1;

NI / Cl. I / Div. 2 / Gr. ABCD / T6-T1

NEC 505

Cl. I / Zone 0 / AEx d[ia] / IIC / T6-T1;

Cl. I / Zone 0 / AEx ia / IIC / T6-T1;

Cl. I / Zone 2 / AEx nA[ia] / IIC / T6-T1

Hazardous (Classified) locationss， indoor/outdoor Type 4X and 6P， IP66， Dual Seal

CSA – Dual Seal-approved

CEC Section 18 (Zone ratings)

Cl. I， Zone 1， Ex d， IIC (Antenna： Zone 0) T6;

Cl. I， Zone 0， Ex ia， IIC T6;

Cl. I， Zone 2， Ex nA， IIC T6

CEC Section 18 and Annex J (Division ratings)

XP-IS， Cl. I， Div. 2， Gr. ABCD; Cl. II， Div. 2， Gr. FG; Cl. III， Div. 2 T6;

IS， Cl. I， Div. 1， Gr. ABCD; Cl. II， Gr. FG; Cl. III T6

NEPSI GYJ091178/79

Ex d ia IIC T3~T6 DIP A21/20 TA T70°C~T95°C IP6X;

Ex ia IIC T3~T6 DIP A21/20 TA T70°C~T95°C IP6X

DNV / INMETRO DNV 12.0043 X

Ex ia IIC T6…T3 Ga; Ex ia IIIC T70°C...T95°C Da IP6X;

Ex d [ia Ga] IIC T6...T3 Ga/Gb; Ex tb [ia Da] IIIC T70°C...T95°C Db IP6X

KGS
11-GA4BO-0325X
11-GA4BO-0326X

Ex ia IIC T6~T3; Ex iaD20IP6X T70°C~T95°C;

Ex d[ia] IIC T6~T3; Ex tD[iaD] A21/20 IP6X T70°C~T95°C

Other standards and approvals

EMC

Electromagnetic Compatibility Directive 2004/108/EC in conjunction with
EN 61326-1 (2013)

R & TTE

Radio Equipment and ecommunications Terminal Equipment Directive
1999/5/EC in conjunction with ESTI EN 302 372-1 (2011) and EN 302 372-2 (2011)

FCC Rules

Part 15

Industry Canada

RSS-210

LVD

Low-Voltage Directive 2006/95/EC in conjunction with EN 61010-1 (2001)

CRN

This certification is for all Canadian provinces and territories. For more data， refer to the website.

NAMUR

NAMUR NE 21 Electromagnetic Compatibility (EMC) of Industrial Process and
Laboratory Control Equipment

NAMUR NE 43 Standardization of the Signal Level for the Failure Information of
Digital Transmitters

1 This option is not available for FM- or CSA-approved devices

2 Kalrez® is a registered trademark of DuPont Performance Elastomers L.L.C.

3 Metaglas® is a registered trademark of Herberts Industrieglas， GMBH & Co.， KG

4 HART® is a registered trademark of the HART Communication Foundation