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High precision and fully submersible
depth & level pressure transmitters
All stainless steel 316 construction
Measuring ranges from 0.1 to
35kgf/cm2
Tow-wire loop powered 4~20mA DC
output signal
Excellent accuracy and long term
stability
300% proof pressure
Excellent urethane extension cable with
vented tube
Applications
Any environment where reliable 4~20mA
continuous level measurement in ;
Ground and surface water monitoring
Water supply and reservoirs controls
Deep well measurements
Geophdrological investigations of
ground water elevation
Well and borehole probe
Water filtration plants and waste water
treatment
Model L127 L117
Technology Piezoresistive silicon pressure sensor Piezoresistive ceramic pressure sensor
Pressure ranges 0~0.1 to 35kgf/cm2 relative pressure 0~0.5 to 35kgf/cm2 relative pressure
0~1 to 35kgf/cm2 absolute pressure 0~1 to 35kgf/cm2 absolute pressure
Pressure reference Gauge, absolute
Overload 3×full scale without damage 1.5×full scale without damage
Output signal 4~20mA current output
Electrical connection type 2-wire technique
Full scale output signal 20mA : ±0.2% 20mA : ±0.3%
Zero measured output 4mA : ±0.03% 4mA : ±0.15%
Other signals available on request
Excitation voltage 12~36V DC
Load resistance
max@24V 500Ω at 24V
Influence of excitation 0.01% FSO/V
Power ripple ≤500mV P-P
Reverse polarity Protected
Shock resistance No change in performance after 10Gs for 11ms
Vibration 0.1G (1 m/s/s) maximum
Response time(10~90%) ≤2 milliseconds 1.5miliseconds
Adjustment ±10% FSO/zero and span ±10% FSO/zero and span
Accuracy ≤±0.25% FSO ≤±0.5% FSO(optional)
Non-linearity ±0.100% FSO typical ±0.20% FSO
Repeatability ±0.015% FSO typical ±0.10% FSO typical
Pressure hysteresis ±0.010% FSO typical ±0.10% FSO typical
Long term stability ±0.3% FSO over 6 month
Cutoff frequency(-3 d B) ±2kHz
Reference temperature 35°C 25°C
Operating temperature range -40~125°C -40~125°C
Compensated temperature range 0~82°C 0~70°C
Thermal sensitivity shift ≤±0.2%FSO ≤±0.015%/°C typical
Thermal zero shift ≤±0.2%FSO ≤±0.02%FSO/°C typical
Thermal hysteresis ≤±0.1% FSO ≤±0.2%FSO
Process connection PT3/8″with removable stainless steel nose cone
Weight or flange can be available
Other connections available on request
Process media Water and liquids compatible with
Stainless steel 316 Ceramic Al2 O3, 96%
Materials wetted by process Diaphragm : Stainless steel 316L Ceramic Al2 O3, 96%
Housing : Aluminum die-casting terminal head
Gasket O-ring : Viton (HNBR, CSM, Teflon etc.)
Construction of extension cable 4 core, shielded with vented tube
ф7.7mm diameter
Vented Polyurethane cable
Stainless steel extension pipe version available(optional)
Enclosure rating IP68
Weight Approx. 400g without cable
Options General terminal head
Explosion proofed terminal head (Ex d IIC T6)
Local display unit
Note :① It should be installed with a support wire over 200meter depth measurement.