Tecfluid LD61 User Manual

Level detector
LD61
Users Manual
C-MI-LD61 Rev.: 2 English version
TECHNICAL DATA
Material: Fork: EN 1.4404 (AISI 316L). Others on demand.
Pipe fittings: Threads G1 (BSP), 1 NPT. Models: 24-250 Vac. Maximum load 350 mA. 2 wire connection with series load
12 - 55 Vdc. Maximum load 350 mA. 3 wire connection
Switching time: > 1s Hysteresis: ± 2 mm with H Working Limits: Viscosity. Up to 10.000 cSt
Density. > 0,6 kg / l Process temperature (liquid). -30 a 120ºC Ambient temperature. -20 a 70ºC
Standard pressure: PN 16 Degree of Protection: IP65
Conforms with the Directives 73/23/CE & 89/336/CE Conforms with the Pressure Equipment Directive 97/23/CE
This equipment is considered as being a pressure accessory and NOT a safety
!
accessory as defined in the 97/23/CE directive, Article 1, paragraph 2.1.3.
Dimensions:
DIN 11851, Clamp ISO 2852.
O
2
Sanitary Thread ( DIN 11851) Clamp (ISO 2852)
2
G1 or 1 NPT Thread LD61 ML
WORKING PRINCIPLE
The LD61 level switch is based on the variation of the natural resonant frequency of a vibrating fork, when it comes into contact with a liquid.
This variation is detected by the internal electronics and is used to determine the state of the output .
RECEPTION
The LD61 level detectors are supplied ready for installation and operation. They are supplied packed for their protection during storage and haulage.
To handle the detectors, they should always be held by the head, never by the vibrating
!
fork. The vibrating fork should not be modified or bent, as this can damage the detector beyond
repair.
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