Nivetec NIVOCONT Manuel utilisateur

NIVOCONT

VIBRATING ROD LEVEL SWITCHES

USER’S MANUAL

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APPROVALS:

BKI ATEX, Certificate No.: BKI16ATEX0005

BKI IECEx, Certificate No.: IECEx BKI 13.0001x issue No.: 0

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CONTENTS

1. INTRODUCTION................................................................................................................................................................................................... 5

2. ORDER CODES.................................................................................................................................................................................................... 5

2.1 Accessories............................................................................................................................................................................................................................... 5

3. TECHNICAL DATA............................................................................................................................................................................................... 6

3.1 General specification................................................................................................................................................................................................................. 6

3.2 Dimensions................................................................................................................................................................................................................................ 7

3.3 Additional data for explosion-proof devices .............................................................................................................................................................................. 8

3.3.1 ATEX Approval, No. BKI16ATEX0005.............................................................................................................................................................................. 8

3.3.2 IECEx Approval No. IECEX BKI 13.0001 X ...................................................................................................................................................................... 9

3.4 Special conditions for safe use ................................................................................................................................................................................................. 9

4. MOUNTING......................................................................................................................................................................................................... 10

5. INSTALLATION, PUTTING INTO OPERATION................................................................................................................................................ 11

6. WIRING............................................................................................................................................................................................................... 12

6.1 Operation diagram................................................................................................................................................................................................................... 13

7. MOUNTING OF CUSTOM EXTENDED TYPE ................................................................................................................................................... 14

8. MAINTENANCE AND REPAIR .......................................................................................................................................................................... 14

9. STORAGE CONDITIONS................................................................................................................................................................................... 14

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Thank you for choosing a NIVELCO instrument.

We are sure that you will be satisfied throughout its use.

1. INTRODUCTION

The NIVOCONT vibrating rod level switches are suitable for low and high level indication of granules and powders with a min. 0.05 kg/dm3density such as cement, lime, sand, grain,

feed, sugar, etc. Dust Ex versions are available for using the instrument in explosion-proof environment.

2. ORDER CODES

NIVOCONT

- - *

VERSION CODE

HOUSING CODE

SUPPLY / OUTPUT / Ex CODE

Standard K

lu cas

5 20-255 V

C/DC / Relay 1

Standard polished S Plastic 6 20-255 V AC/DC / Electronic 3

High temp. H(4) 20-250 V AC vagy 20-50V DC / Relay / E

High temp. polished T(4)

PROCESS.

CONN.

CODE PROBE

LENGTH

CODE

EXTENSION EXTENSION

Standard Pipe Cable Custom Standard Pipe Cable Custom

1 ½ " BSP H R K E 207 mm 02 — —

1 ½ " NPT N L C F 0,3 … 3 m — 03…30 —

1 … 20 m — — 01…20

0,2…2m 02

(4) only for standard and pipe extended versions

* The order code of an Ex version should end in „Ex”

2.1 Accessories

 User’s manual

 Warranty Card

 Declaration of Conformity

 2 pcs. 3-pole terminal blocks

 1 ½ " sealing, for BSP only

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3. TECHNICAL DATA

3.1 General specification

VERSION STANDARD PIPE EXTENDED CABLE EXTENDED CUSTOM EXTENDED

Probe length 207 mm [8.15 in] 0,3 – 3 m [0.98 – 9.84 ft] 1 – 20 m [3.28 – 65.62 ft] 0,2 – 2m [0.66 – 6.56 ft]

Material of wetted parts 1.4571 rezgőrész: 1.4571 PE bevonatú kötél 1.4571

Housing material Aluminium: Powder paint coated (R-500 series)

Plastic: PBT fibre-glass reinforced, flame-retardant (R-600 series)

Process connection RH, RR, RK, RE: 1½" BSP;

RN, RL, RC, RF: 1½" NPT

Temperature ranges See Figure 2.

Max. pressure (absolute) 25 bar (2,5 MPa) [362.6 psi] 6 bar (0,6 MPa) [87 psi] See section 6!

Minimum medium density (1) 0.05 kg/dm3 [3.12 lb/ft3] (max. granular size: 10 mm [0.39 in])

Response time

(selectable)

Not vibrating

(covered) < 1.8 sec or 51.5 sec

Vibrating (free) < 2 sec or 5 1.5 sec

Supply voltage (universal) normal type: 20 – 255 V AC/DC

Power consumption 2.5 VA / 2 W

Electrical connections 2 pcs. plastic glands for cable Ø 6 – 12 mm [Ø 0.24 in – Ø 0.47 in],

2 pcs. plug-in type terminal blocks for max 1.5 mm2[15 AWG] wire cross section internal thread for 2x ½” NPT cable protective pipe

Ingress protection Housing: IP67 See section 6!

Electrical protection Class I. (to be grounded!)

Mass plastic housing 1,5 kg 1,5 kg (+1,4 kg/m) 1,5 kg (+0,6 kg/m) 1,5 kg

aluminium housing 1,88 kg 1,88 kg (+1,4 kg/m) 1,88 kg (+0,6 kg/m) 1,88 kg

(1) Depend on friction and granular size of the medium

OUTPUT DATA RELAY SOLID STATE

Output type SPDT (potential free) SPST (electronic)

Output rating 250 V AC, 8 A, AC 1 50 V, 350 mA

Output protection – Overvoltage, overcurrent and overload

Voltage drop (switched on) – < 2.7 V @ 350 mA

Residual current (switched off) – <10 A

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TEMPERATURE DIAGRAM

-30

-30 50 75

100 110 160 T

[°C]

Figure 2.

Ambient temperature (TA) versus medium temperature (TM)

R_H

F = 500 N

M = 100 Nm

R_R

R_L

M = 100 Nm

R_K

R_C

F = 45 kN

3.2 Dimensions

STANDARD PIPE EXTENDED CABLE EXTENDED CUSTOM EXTENDED

Figure 3.

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3.3 Additional data for explosion-proof devices

3.3.1 ATEX Approval, No. BKI16ATEX0005

TYPE RK-5-5EX,RH-5-5EX,RS-5-5EX,RT-5-5EX

Ex marking II1/2 D Ex ta/tb IIIC T90 °C…T170 °C Da/Db

Supply voltage (universal) 20 – 250 V AC (50 / 60 Hz) or 20 – 50 V DC

Electrical connections 2 pcs. M20x1.5 cable glands with Ex ta IIIC protection type,

2 pcs. plug-in type terminal blocks for max. 1.5 mm2wire cross section

2) Medium temperature for max.1 hour + 95 °C

(3) To operate the level switch with the maximum values of the related temperature data the applied cable should permanently withstand up to +90 °C temperature.

TEMPERATURE DATA

CABLE EXTENDED VERSION STANDARD AND PIPE EXTENDED VERSION

RK-5-5Ex

RC-5-5Ex

RK-5-5Ex, RS-5-5Ex

with the exception of the cable extended version

HIGH TEMPERATURE

RH-5-5Ex, RT-5-5E

Medium temperature min.: -30 °C … max.: (3)

+60 °C

+70 °C +80 °C(2)

+60 °C

+70 °C +95 °C +110 °C +160 °C

Ambient temperature range min.: -30 °C …max.: (3) +50 °C +60 °C +50 °C +60 °C +50 °C +35 °C

Max. surface temperature of process connection

+85 °C +95 °C 85 °C

+95 °C +135 °C

Max. surface temperature +95 °C +110 °C +160 °C

Temperature class T90 °C T100 °C T90 °C T100 °C T115 °C T170 °C

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3.3.2 IECEx Approval No. IECEX BKI 13.0001 X

TYPE RK-5-5EX,RH-5-5EX,RS-5-5EX,RT-5-5EX

Ex MARKING Ex t IIIC T* Da/Db IP67 *(see Temperature data table)

Supply voltage (universal) 20 – 250 V AC (50 / 60 Hz) or 20 – 50V DC

Electrical connections 2 pcs. M20x1.5 cable glands with Ex ta IIIC protection type,

2 pcs. plug-in type terminal blocks for max. 1.5 mm2wire cross section

(2) Medium temperature for max.1 hour + 95 °C

(3) To operate the level switch with the maximum values of the related temperature data the applied cable should permanently withstand up to +90 °C temperature.

3.4 Special conditions for safe use

The enclosure shall be not opened while it is energized!

The IECEx certified apparatus may be used only in explosive dust atmospheres where the temperature class of the selected type of the apparatus does not exceed two-third parts of the

minimum ignition temperature of the dust/air mixture.

The IECEx certified equipment must be assembled with cable glands certified according to protection Ex t IIIC IP67, size M20x1.5

In hazardous atmosphere environment the unit can be only powered on after properly closing the housing cover and fixing the screws of the safety locking bolt.

TEMPERATURE DATA

CABLE EXTENDED VERSION STANDARD AND PIPE EXTENDED VERSION

RK-5-5Ex

RC-5-5Ex

RK-5-5Ex, RS-5-5Ex

with the exception of the cable extended version

HIGH TEMPERATURE

RH-5-5Ex, RT-5-5Ex

Medium temperature min.: -30 °C … max.: (3)

+60 °C

+70 °C +80 °C(2)

+60 °C

+70 °C +95 °C +110 °C +160 °C

Ambient temperature range min.: -30 °C …max.: (3) +50 °C +60 °C +50 °C +60 °C +50 °C +35 °C

Max. surface temperature of process connection

+85 °C +95 °C 85 °C

+95 °C +135 °C

Max. surface temperature +95 °C +110 °C +160 °C

Temperature class T90 °C T100 °C T90 °C T100 °C T115 °C T170 °C

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4. MOUNTING

Prior to installation, it is advised to check the switching function for proper adjustment on a sample quantity of material (see: Installation).

The unit may not work with mediums within the specified density range but having very large size of granules or extremely little friction.

WARNING! Handle the device with great care, especially the sensing probe. Any impact on the sensing probe may ruin its resonance system.

A protective shield should be installed (see Figure 6) if the probe is exposed to falling material or excessive mechanical load.

Screw in the device by its hexagon neck. After screwing tight the process connection, the housing can be rotated (max. 300°), to adjust the cable gland to the required position.

It might be necessary to install the device at an offset level position relative to the switching level actually required taking into account caving or arching of the material in the silo (see

Figure 4).

High level indication Low level indication

Figure 4.