
SERIES MBLT | MINIATURESUBMERSIBLELEVELTRANSMITTER
FEATURES/BENEFITS
•Slender0.63˝(16mm)diameterdesigntsinnarrowopenings
•Constructedforyearsoftroublefreeservicewithwelded316SSbodyand
316SSnosecap
•Bodytopis316SSandtaperedtopreventdamageorsnareswhenpulling
theunitoutoftheinstallation
•Lowpowervoltageoutputmodelsareidealforremotelevelmonitoring
withrechargeablebatteryandsolarpanel
•Maintenancefreelteronventtubeeliminatesparticulatewaterdroplets
fromenteringthetransducer
•Incorporateslightningandsurgeprotection,eliminatingbothpower
supplysurgesandlightninggroundstriketransients
APPLICATIONS
Low Power
Models
Available
• Ballast tanks
• Ground water monitoring
• Surface water monitoring
• Dewatering
• Down hole/Bore hole
• Remote telemetry
•Remoteoodmonitoring
• Narrow conduit or pipe installations
• Remediation and environmental monitoring
DESCRIPTION
The SERIES MBLT Miniature Submersible Level Transmitters measure the height of liquid
above the position in the tank referenced to atmospheric pressure. The transmitter consist
ofapiezoresistivesensingelement,encasedina0.63˝(16mm)diameter316SShousing.
Voltage output units operate with 8 VDC of power.
SPECIFICATIONS
Service Compatible liquids.
WettedMaterials Bodyandnose:316SS;Cable:PolyetherpolyurethaneorETFE;Seals:Fluoroelastomer;Label:Polyolen.
Accuracy ±0.25%or±0.10%FS.4.3to4.9psi(10to11.54inw.c.)conguredrangesare±0.30%FSaccuracy.
TemperatureLimits -4to176°F(-20to80°C).
CompensatedTemperature
ThermalEffect 0.25%:±0.45%FSTEB;0.10%:±0.30%FSTEB.
Pressure Limit 2XFS.
Power Requirements CurrentOutput:10to33VDC;VoltageOutput:8to33VDC;5mAmax(noload).
OutputSignal 4to20mADC2-wireor0to5V*(modeldepending).
ResponseTime < 50 ms.
Max.LoopResistance 1000Ω@30VDC(currentoutput).
VoltageOutputImpedance 10Ω+4.4Ω/100´cable(voltageoutput).
ElectricalConnections Wire pigtail.
MountingConnection Suspended below point being monitored.
ElectricalProtection Surge/lightningprotectedperEN61000-4-5,Class5.
Weight Body:0.235lb(0.107kg);Cable:0.037lb(0.009kg)perfoot.
AgencyApprovals CE.
0.25%:32to158°F(0to70°C);0.10%FS:32to140°F(0to60°C).
Limits
dwyer-inst.com
DWYER INSTRUMENTS, INC.

DIMENSIONS WIRING DIAGRAM
Ø5/8
[Ø15.87]
[171.45]
BREATHER
CABLE
HOW TO ORDER
Usethebold characters from the chart below to construct a product code.
MBLT -25 C -I V P P -25 -100 -FC
SERIES
MBLT - Miniature submersible
level transmitter
CIRCUIT & BODY MATERIAL
-2S -Lightning/surgeprotected&316SS
PRESSURE
TRANSMITTER
RED
BLACK
SHIELD
PRESSURE
TRANSMITTER
RECEIVER
CurrentOutput
+V
GND
VOUT
SHIELD
VoltageOutput
RED
BLACK
WHITE
+
-
-
+
POWER
SUPPLY
8-33 VDC
OPTIONS
-FC -Factorycalibration
CABLE LENGTH
-X -10to2000´
-X - 3 to 650 m
POWER
SUPPLY
10-33 VDC
V
ACCURACY
B -0.10%FS
C -0.25%FS
OUTPUT
-I -4to20mA
-L - 0 to 2 V
-H - 0 to 2.5 V
-T - 0 to 3 V
-F -0to4V
-V - 0 to 5 V
RANGE VALUE
-X -4.5to300psi
10to693´w.c.
3.2to211mw.c.
RANGE UNITS
F -Feetofwatercolumn
M - Meters of water
column
P - psi
-O -1to5V
REFERENCE
V - Vented
CABLE MATERIAL
E -ETFE
P -Polyurethane
ACCESSORIES
Model Description
A-297 Desiccantlterforventtube.Removeshumidityforprotectionofthesensor.Changescolortoshow
ImportantNotice:DwyerInstruments,Inc.reservestherighttomakechangestoordiscontinueanyproductorserviceidentiedinthispublication withoutnotice.Dwyeradvisesitscustomerstoobtainthe
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.
saturation.
DWYER INSTRUMENTS, INC.
dwyer-inst.com
800-872-9141
DS-MBLT | 1/19