3.0: Introduction
The LDX-4 MK2 is a development of the original LDX-4. It is a compact condition-
ing module powered from a single DC supply. Adjustable gain and zero controls
are provided for use with the complete range of Omega transducers. The unit is
of robust construction, housed in a die cast aluminium box providing a substantial
degree of mechanical protection.
The LDX-4 MK2 incorporates its own voltage regulation for operation from 10-30
VDC and can provide outputs of up to
±10 V together with ±20 mA.
3.1: LDX-4 Enhancements
The LDX-4 MK2 has been designed as a form, fit and function replacement for the
original LDX-4, but with several enhancements.
•
Wider gain range, allowing ALL Omega transducers to be connected without
the need for attenuation resistors.
•
Up to ±10 VDC and ±20 mA are available for all gain settings.
•
Fixed and variable offsets make setting of uni-polar output easier.
•
Gain and offset adjustment are fully independent.
•
Selectable transducer excitation frequency.
•
Selectable transducer load resistances.
•
Selection between forward and reverse connection.
•
Fully CE Compliant.
•
Half-Bridge transducers can now be accommodated with simple plug wiring
changes.*
* For half-bridge only variant see section 6.0.
4.0: Installation
4.1: Mounting
The LDX-4 may be mounted in a variety of ways and in any attitude. Ensure that
there is enough space for the cover to be removed to allow for internal adjust-
ments. Space should also be allowed for the transducer connector, EMC glands (if
fitted) and cabling. It is recommended that the LDX-4 case be connected to earth
or chassis. This earth connection is not a safety earth, but is part of the overall
electrical screening scheme.
Underside Mounting Top-Side Mounting
Note: If replacing LDX-4
MKI a retrofit mounting kit
is available if repositioning
holes is not possible.
