The MLST / MLXT 4220 controls are
Lumenite®'s stand alone microprocessor based
RF capacitance continuous monitoring level transmitters. These
push button calibrated sanitary and
industrial units provide 4-20mA, 20-4mA and 0-5VDC analog outputs
proportional to material level in
any shaped tank.
The MLST / MLXT Temp 4220 is Lumenite®'s
combination level / temperature
transmitter for both sanitary and
industrial
applications. In addition to having all of the
features of the
original design, the MLST/MLXT-Temp 4220 provides 2 separate 4-20mA
outputs measuring level and
temperature with one tank connection.
Additional
Technical Information for MLST/MLXT-Temp 4220 :
>
Temperature transmitter ranges from -100 to +1000°F or C
>
Provides 2 isolated 4-20mA analog outputs, one proportional to level,
the second proportional to
temperature
>
Output current error of 0.005%
Technical Information for MLST /
MLXT 4220 and
MLST / MLXT Temp 4220
>
Resolution to better than 1 part in 10,000
>
Accuracy and repeatability to less than 0.1% of span
>
Microprocessor based transmitter with on board digital to analog
conversion
assuring negligible output current error of 0.003%
>
Linearity of better than 0.003% over the industrial temperature range of
-20°F to 160°F
>
Designed with the most up to date surface mount, integrated circuits and
components
>
Standard span range of 0.0001 picofarads to 15,000 picofarads. This
allows the
series 4220 to span 4-20mA over 1 inch of water, (high sensitivity) or
hundreds of
feet of water, (low sensitivity)
>
Non interacting zero and span adjustments
>
Cancel CoatTM circuitry and superior resolution eliminate the readout
errors
caused by conductive coatings on the sensing probe
>
Calibration and programming accomplished with only 3 push buttons
>
3-digit on board display allows 4-20mA, 20-4mA and 0-100% calibration
and
run modes
>
Operator has choice of 4-20mA (0-100%), 20-4mA (100%-0) and 0-5VDC
operation
>
Dampening circuitry eliminates "display jittering" caused by agitated
liquids
>
Standard error messages 01 and 02 indicate shorted probe (01) and
disconnected probe (02)
>
Extensive RFI, EMI and transient protection verified by independent
laboratory
tests, available upon request
>
Electronics may be remote mounted hundreds of feet from the probe
>
Supply voltage range of 12 volts to 36 volts D.C. optional 115VAC and
230VAC
inputs available
>
Maximum loop resistance of 600 OHMS with 24VDC power supply
>
Nema 4X stainless steel sanitary housing with "see through window" and
every
type of sanitary tank connection (sanitary applications)
>
Nema 7 rated cast aluminum instrument housing with "see through window"
UL, CSA and Factory Mutual approved (industrial applications)
>
Industrial Tank Mountings include : Standard 3/4" NPT, Optional
1-1/2"NPT
1" through 4" steel or stainless steel flange
(any special tank connections upon request)
MLST 4220
Ordering Key
Model
Prefix
:
Type of Sanitary Fitting :
•
MLST -
4220
• A = bevel seat
• C
= tri-clamp
• K = k-clamp (apc) • P = pv (apc)
Size
of Fitting
:
Length of Probe :
•
1 1/2" through
4" • any
size
available (extra charge after 6 feet)
Sample Order Number :
MLST
- 4220 - C2" - 48" : sanitary 4-20 MA
transmitter
with 48" probe and 2" tri-clamp tank connection
MLXT 4220 Ordering Key
Model
Prefix
:
Optional Tank Connection:
•
MLXT -
4220
• F = flange • P = male pipe
thread
Size
of Pipe Thread or Flange :
•
3/4"
standard
• any size available (extra charge)
Length
of Probe :
•
any size available (extra charge after 6 feet)
Sample Order Number :
MLXT
- TEMP - 4220 - P 3/4" - 42" : combination level and
temperature
transmitter with 42" probe, 3/4" NPT tank connection
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