Page 116 - Lockwell Industrial Catalogue

INDUSTRIAL INSTRUMENTATION
Pressure Sensors
PBS Pressure Switch
The PBS pressure switch combines the functionality of a pressure transmitter, switch and display in one compact package.
A rotatable body and display ensure that the highly visible display can be correctly orientated during commissioning irrespective of installation restrictions.
Features
• Electronic pressure switch with display for monitoring pressure in liquids and gases
• Precise sensor technology with stainless steel membrane
• Integratedprocessconnectionsmanufacturedfromhigh-qualitystainlesssteel
• Pressure values indicated on display. Output states are
Level Sensors
LFV200 – Vibrating level fork and MHF15 – Optical level sensor
The LFV200 and MHF15 represent two complimentary technologies for point level detection in vessels and dry run protection for pumps.
The LFV200 uses the tuning fork principle to detect the presence of fluid. It is completely insensitive to fluid colour and capable of detecting fluids with a wide range of densities and viscosities.
For light coloured fluids the MHF15 represents a cost effective alternative. When no fluid is present the prism on the front of the MHF15 reflects light back into the receiving optics.
When fluid covers the prism the refractive index is changed causing
some of the light to enter the fluid. The receiver optics detect a
reduction in light reception and the output is switched.
Part number
LFV200-XXSGBTPM
LFV200-XXSGATPM
LFV200-XXSGATPM
LFV200-XXHCNTPM
MHF15-21NG1PSM
MHF15-21NG1HSM
Process Connection
G3/4”
G1”
1” Triclamp
2” Triclamp
G1/2”
G1/2”
Process
Temperature Hygienic
-40 to +100°C No
-40 to +100°C No
-40 to +150°C Yes
-40 to +150°C Yes
-25 to +55°C No
-25 to +55°C No
Output
PNP NO/NC
PNP NO/NC
PNP NO/NC
PNP NO/NC
PNP NO
PNP NO
LFP – Guided microwave level probes
LFP guided microwave (TDR) level probes are designed for reliable detection of fluid level in closed metal tanks/vessels.
A very low power microwave pulse is transmitted along the stainless steel probe, the fluid reflects the pulse back to the probe head which
calculates the time of flight and the level of fluid in the vessel.
Guided microwave probes are ideal for measuring a wide range of fluids. No calibration to the fluid type is required and they will continue to work if there is build up on the probe surface or if light foam is covering the surface of the fluid.
Features
• Up to 2m long probes (can be cut to length by the customer)
• 25mm deadband at top of probe
• Scaleable and invertable 4-20mA/0-10V output
(selectable) for continuous level monitoring
• 1 x PNP switched output+ 1 x PNP/NPN output (selectable) for point level detection
• Onboarddisplayforreal-timelevelindicationandeasiercommissioning
• Hygienic adaptors available for LFP Inox level probes
Part numbers: Cubic Level Probes
LFP0500-A4NMB
LFP1000-A4NMB
LFP1500-A4NMB
LFP2000-A4NMB
Wetted materials
.1.4404 Stainless steel + PTFE
.1.4404 Stainless steel + PTFE
.1.4404 Stainless steel + PTFE
.1.4404 Stainless steel + PTFE
Part numbers: Inox Level Probes
LFP0500-A4NMB
LFP1000-A4NMB
LFP1500-A4NMB
LFP2000-A4NMB
Wetted materials
316L Stainless steel (polished to ≤ 0.8μm) + Peek seal
316L Stainless steel (polished to ≤ 0.8μm) + Peek seal
316L Stainless steel (polished to ≤ 0.8μm) + Peek seal
316L Stainless steel (polished to ≤ 0.8μm) + Peek seal
Probe Length
500mm
1000mm
1500mm
2000mm
indicated separately via wide-angle LEDs.
• Unit of pressure value in display can be switched
• Min/maxmemory
• Passwordprotection
• IO-Link (options available)
Part number
PBS-RB1X0SG1SSNBMA0Z
PBS-RB010SG1SSNBMA0Z
PBS-RB025SG1SSNBMA0Z
PBS-RB100SG1SSNBMA0Z
PBS-RB250SG1SSNBMA0Z
PBS-RB400SG1SSNBMA0Z
Pressure range
0 to 1bar
0 to 10bar
0 to 25bar
0 to 100bar
0 to 250bar
0 to 400bar
Process Temperature
-20 to +85oC
-20 to +85oC
-20 to +85oC
-20 to +85oC
-20 to +85oC
-20 to +85oC
Process
Connection Output
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
G1/4” 1 x PNP 100mA, 1 x analogue 4-20mA
116
SENSING