8
Operating Manual
IP4001, Rev CA
Mobrey Series VLS
March 2018
4.0
Maintenance
Mobrey Series VLS devices do not require maintenance on a regular basis. In some instances, however,
the vibrating section may need a cleaning from deposited material. This must be carried out gently,
without harming the vibrating section of the vibrating rod.
Repairs during or after the guarantee period are affected by Emerson. Equipment sent back for repairs
must always be cleaned or neutralized (disinfected) by the user.
5.0
Specifications
Table 1-2. Specifications for Standard, Rod Extended, and Cable Extended Versions
Category
Standard
Rod extended
Cable extended
Probe length
207 mm
0.3 to 3 m
1 to 20 m
Wetted-parts materials
1.4571
Probe: 1.4571
Cable: PE coated
Housing material
Aluminum: Powder paint coated
Process connection
1½-in. BSP or 1½-in. NPT
Operating temperature ranges
See
Figure 1-6
and
Table 1-3
Maximum pressure (absolute)
25 bar (2.5 MPa)
6 bar (0.6 MPa)
Minimum medium density
(1)
1.
May depend on friction and granular size of the medium.
0.05 kg/dm
(maximum granular size: 10 mm)
Response time (selectable)
Not vibrating (covered): < 1.8 seconds or 5±1.5 seconds
Vibrating (free): < 2 seconds or 5±1.5 seconds
Supply voltage (universal)
Normal type: 20…255 Vac/Vdc
Ex type: 20…250 Vac (50/60 Hz) or 20…50 Vdc
Power consumption
2.5 VA, 2 W
Electrical connections
2 pcs. M20x1.5 cable glands with ta lIIC protection type or
for normal types M20x1.5 plastic glands for cable Ø 6 to 12 mm,
2 pcs. plug-in type terminal blocks for 0.25 to 1.5 mm2 wire cross section
internal thread for 2x ½-in NPT cable protection pipe
Output
SPDT (potential free), 250 Vac, 8 A, ac 1
Ingress protection
IP67 (NEMA6) EN 60529:2001
Electrical protection
Class I. (to be grounded)
Ex protection mark
ATEX:
II 1/2 D Ex ta/tb IIIC T90 °C… T170 °C Da/Db
Weight (with extension)
1.88 kg
1.88 kg (+1.4 kg/m)
1.88 kg (+ 0.6 kg/m)
Storage conditions
Ambient temperature range: -35°C to +60 °C
Relative humidity: 98% (maximum)
