Section
2
Transmitter Overview
2.0 General Description
The LTM-Series are 2-wire electronic field
instruments, suitable for installation in hazardous
and non-hazardous locations. Testing and
certification has been obtained from different
agencies for installation in such areas. This
instrument is designed to measure and transmit an
analog and/or digital signal proportional to liquid
level in a tank. The complete assembly includes an
explosion-proof enclosure and attached sensor tube
and a magnetic float. The LTM-Series are available
in a variety of lengths and wetted materials to
accommodate many different applications.
2.1 Product Identification
Figure 1. Example label/name plate
The product can be identified by the stainless steel
label that is located on the side of the transmitter
enclosure/housing.
The label can be read as follows:
wwww
= Any hazardous location area classification
markings that the instrument is approved for.
ZZ/ZZ
= Born on date; the2 digit month and 2 digit
year the instrument was shipped to the customer.
AAAA
= The specific serial number assigned by
Magtech for complete traceability.
BBBB
= The overall probe length of the instrument.
Note:
THIS IS NOT THE MEASURING RANGE.
XXXX
= The measuring range of the instrument.
The 0 and 100% (4/20mA) output range.
YYYY
= The end user specified tag number (only
when specified).
2.2 Transmitter Configurations
LTM-Series transmitters generally have two
configurations:
1.
Gage Mounted:
Where the transmitter is
mounted on the outside of a magnetic level
gage and strategically located within a
certain longitudinal distance from the
transmitter sensor probe and a magnetic
float is placed inside the level gage.
2.
Standalone (or Direction Insertion Type):
Where the transmitter has a magnetic float
directly around the transmitter sensor
probe and the probe is directly inserted into
a tank/vessel.
In either configuration as the tank level changes,
the float tracks the change and continuously
activates the sensor probe. The electronics process
the change in signal and output an analog and/or
digital signal. This output is precisely the liquid level
in the tank.
Magtech is always willing to explore
unique applications that require their own
distinctive configurations. Please consult the
factory for guidance.
2
wwwwwwwwwwwwwwwwwwwwwww
ZZ/ZZ
S/N
AAAA
/ OL
BBBB
MODEL LTM- 350-G-
XXXX
TAG
YYYY
ISE-MAGTECH
wwwwwwwwwwwwwwwwwwwwwww
wwwwwwwwwwwwwwwwwwwwwww
