NIVELCO NIVOFLIP MAK-100 Series User manual

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Thank you for choosing a NIVELCO instrument.
1. GENERAL INDTRODUCTION, OPERATION
NIVOFLIP MAK–100–type magnetic level switches are suitable for level switching of variuos liquids.
MAK–100 type magnetic level switches are used for magnetic-lamella bypass level indicator (named
NIVOFLIP) as an optional level switch.
OPERATION PRINCIPLE:
Mounted on suitable connection flanges on the side of the tank the liquid level in the bypass tube and the
tank is equal. In the stainless-steel bypass tube a magnetic float tracks the level of the liquid. In the float
a permanent magnet is incorporated, which operates the MAK-100 type adjustable positioned magnetic level
switch through the stainless-steel side of the tube, and provides non-contact signal transfer to the
microswitch.
Electronic connection is performed with cable gland, wired with a maximal 2.5 mm2cross sectioned cable.
Installation of the level switch is made by 2 pieces of hose clamps. Position of the switch can be changed to
adjust the needed switching level. The level switches are available in normal and Ex versions.
2. TECHNICAL DATA
Type MAK–100–0 MAK–100–6 MAK–100–7
Medium temperature max. +130 °C
(+266 °F) See: Temperature classes table
Ambient temperature –20… +80 °C
(
–
4… +176 °F)
Material of the switch-housing Paint coated aluminium cast
Switch 1 microswitch, with NO / NC contacts
Switch rating 250 V AC12 2.5 A
220 V DC13 0.3 A
Only Ex ia certified and
approved contact isolator
should be used for supply!
250 V AC12 2.5 A
220 V DC13 0.3 A
Electrical connections cable gland: M20x1.5 terminal for max. 2.5 mm2(AWG14) wire cross section
Mechanical protection IP65
Electrical protection Class I
Ex marking – II 1G II 2G Ex db eb mb IIC T6…T4
Mass 1.5 kg (3.3 lbs)
* The Ex dand Ex mprotection mode apply to the built-in microswitch!
2.1 GENERAL DATA
Temperature classes
Class T6 T5 T4
Max. medium temperature +80 °C (+176 °F) +95 °C (+203 °F) +130 °C (+266 °F)
Ambient temperature –20…+60 °C
(–4…+140 °F)
–20…+70 °C
(–4…+158 °F)
–20…+80 °C
(–4…+176 °F)
2.2 ACCESSORIES
User’s manual
Warranty card
EU Declaration of Conformity
2 pcs. Hose clamps
2.3 ORDER CODE
NIVOFLIP MAK –100 –
Type Code
Normal 0
Ex II 1G (ATEX) 6
II 2G Ex db eb mb IIC T6…T4 (ATEX) 7
2.4 DIMENSIONS
2
.5 MOUNTING 2.6 MOUNTING RECOMMENDATION
Default start-up:
Before start-up move the float to the top end, and all the way back to the bottom point.

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3. WIRING
1. level – Low fail safe-
Low fail-safe mode: if the level is lower than the switch points
the micro-switch interrupts the signal.
Two-wire signal cable wiring to NO-NO contacts.
3. level – High fail safe-
High fail-safe mode: if the level is higher than the switch points
the micro-switch interrupts the signal.
Two-wire signal cable wiring to NC-NC contacts.
2. level – user level indicator
Wiring on demand with NO-NO or NC terminals
The self-holding relay circuit and the cabling are not part of the unit!
4. SPECIAL CONDITIONS OF SAFE USE
4.1. MAK–100–6 Ex:
The limit switch must be connected to a voltage source of a certified
type for use in explosive atmosphere from II (1) G [Ex ia] IIB resp.
II (1) G [Ex ia] IIC and its output circuit approved as intrinsically
safe.
4.2. MAK–100–6 Ex:
The housing of equipment is made of aluminium alloy. If the equipment
is installed in a location where the device must have Ga protection
level, it must be installed in order to avoid ignition sources of rare
occurrence of shock and friction sparks.
4.3. MAK–100–7 Ex:
The equipment must be protected against overload with a fuse 2.5 A
marked “T”.
4.4. The housing of equipment must be connected to the EP network.
4.5. The temperature class depends on the ambient temperature resp.
medium temperature (See: Temperature classes table).
5. MAINTENANCE
The device does not require regular maintenance. The warranty card contains the
terms and conditions. Before returning the device for repairs, it must be cleaned
thoroughly. The parts in contact with the medium may contain harmful
substances; therefore, they must be decontaminated. Our official form
(Returned Equipment Handling Form) must be filled and enclosed in the parcel.
Download it from our website www.nivelco.com. The device must be sent back with
a declaration of decontamination. A statement must be provided in the declaration
that the decontamination process was successfully completed and that the device
is clean from any hazardous substances.
6. STORAGE CONDITIONS
Ambient temperature: –25…+80 °C (–13…+176 °F)
(see: “Temperature classes table”)
Relative humidity: max. 98% non-condensing!
mak1100a0600h_04
November 2018
NIVELCO reserves the right to change technical specifications without notice.