Level Controller MS1 EX

The NIVA level controller MS1 EX is the ideal solution to control liquids with limited switching space in potentially explosive atmospheres classified Zone 0, 1 and 2. For example in:

  • Refineries
  • Gas stations
  • Sewage works

The NIVA Level Controller MS1 EX meets the latest requirements of EC directive 95/9/EC (ATEX 95) and the international directive IECEx, which must be respected by applications in potentially explosive areas. In accordance with the licence SEV 13 ATEX 0102 and IECEx SEV 13.0001 the Level Controller MS1 EX may be used in zone 0, zone 1 and zone 2 (Cl.1 Div.1*) as well as in gas groups IIA, II B and IIC, where an explosion hazard exists due to combustible materials in temperature classes T1 to T6 (80°C/176°F). Always connect through safety barrier relay. The IECEx standard is recognized by 33 countries. Including Canada (CANC/IEC) and the US (NEMA).

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Available Versions

MS1 EX

Type

 

Cable

Length

Order-no.

WTPK/PVC 4G0,75540 000205
WTPK/PVC 4G0,751040 000210
WTPK/PVC 4G0,752040 000220
W = SPDT
Other cable types and lengths are available upon request

 

MS1 EX C

Type

 

Cable

Length

Order-no.

WTeflon/FEP 4G x 0,55 40 001505
WTeflon/FEP 4G x 0,510 40 001510
WTeflon/FEP 4G x 0,520 40 001520
W = SPDT
Other cable types and lengths are available upon request

 

Accessories

Intrinsic safety barrier relais06 3232

Application

For use in municipal, industrial, commercial and domestic applications.

Electronic Connection

Connection of
level controllers


Wire

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For emptying a tankinsulateXX
For filling a tankXinsulateX
Alarm high levelinsulateXX
Alarm low levelXinsulateX
Technical data subject to change

Technical Data

Specific weight:0,95 - 1,05 or according to specification
Max. temperature:80°C
Breaking capacity:*1 - 100 mA / 4 - 40 V
Inductance Li:0
Capacitance Ci:0
Switch point:10°
Protective system:IP68 / 2 bar
Protection classII 1G Ex ia IIC T6
Cable cross section:4G0,75 mm² (MS1 EX)
4G0,5 mm² (MS1 EX C)
Height / diameter:180 / 100 mm
Housing quality:**PRE-ELEC PP
Housing Colour:Black
Cable quality:TPK / PVC
Cable colour:

Blue (MS1 EX)
Black (MS1 EX C)

* Micro-switch with gold-plated contacts especially for low currents in electronic circuits
** Specially deflective plastic to prevent electrostatic charging when used in Ex-area (in accordance with ATEX 95).
  • EC-type examination certificate
  • IECEx SEV 13.0001