Technical Data
Model L829 L849
Measuring priciples Piezoresistive silicon pressure sensor Capacitive ceramic pressure sensor
Pressure ranges 0~0.1 to 35kgf/cm2 relative pressure 0~250mmH2O to 35kgf/cm2
Pressure reference Gauge pressure
Overload 3×full scale without damage 5×full scale without damage
Output Signal 2 switching points
2 switching points with analog output (4~20mA)
4~20mA 2-wire current output
Other signals available on
Local display LED 4 digit
Electrical connection type Terminal head with explosion protection(Ex d IIC T6)
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
Switching current Maximum 1.2A
Range turn down Max 10 :1
Accuracy ≤±0.25% FSO ≤±0.2% FSO
Non-linearity ±0.100% FSO typical
Repeatability ±0.015% FSO typical
Pressure hysteresis ±0.010% FSO typical
Long term stability ±0.3% FSO over 6 month Maximum annual error 0.1%
Cutoff frequency(-3 d B) ≤2kHz
Reference temperature 35°C
Operating temperature range -40~125°C -40~125°C
Compensated temperature range 0~82°C -20~80°C
Thermal sensitivity shift ≤±0.5%FSO in reference to 35°C typical Max. ±0.3%
Thermal zero shift ≤±0.5% FSO in reference to 35°C typical Max. ±0.75%
Thermal hysteresis ≤±0.1% FSO in reference to 35°C typical
Process connection Flange per JIS, ANSI, DIN
Clamp
Other connections available on request
Electrical connection PT1/2"female
Process media Gases and liquids, also aggressive and corrosive, as far as compatible with
stainless steel 316 & aluminum oxide ceramics (96%)
Materials wetted by process Diaphragm : Stainless steel 316L Ceramic Al2 O3, 96%
Housing : Aluminum die-casting terminal head
No O-Ring Gasket O-ring : Viton, Teflon
Enclosure rating IP67
Explosion protection Ex d IIC T6
Influence of mounting position Under 0.5kgf/cm2, mounted vertically Not critical
Weight Approx. 1500g
Options Remote sealed diaphragm
Note