English 
français 
Deutsch 
Español 
italiano 
русский 
português 
العربية 
Türkçe 
Zulu 
LFDS68 Pressure Switch is a fully electronic device, it uses a high-precision, high-stability silicon piezoresistive sensor with a dedicated signal conditioning circuit. It features on-site digital display, one channel 4-20 mA analog output, two channel electronic switch outputs or one relay switch output and multiple pressure connection options threaded or Tri-Clamp. This compact device integrates pressure measurement, display, output, and control. it is flexible, easy to operate, safe and reliable, widely used in: industrial automation: environmental protection petrochemical industry; water treatment systems.
* 4-digit LED or LCD on-site display;
* Supports various types of switch outputs (PNP, NPN, relay);
* Easy parameter configuration via buttons;
* LED indicators for switch status monitoring;
* Multiple process connections available: threaded, Tri-Clamp, etc.
| Load CapacityPressure Range | |
| Gauge | -100kPa...0~10kPa...60MPa |
| Absolute | 0~10kPa...10MPa |
| Overload | 1.5x full scale |
| Remark: max 2 Mpa for Tri-Clamp, as per "Pressure Connection" | |
| Media Compatibility | |
| Media Type | Liquids and gases compatible with wetted materials |
| Output & Power Supply | |
Output & Power Supply | 4~20mADC / Vs=12~32VDC |
| 4~20mADC+2 electronics witches / Vs=12~32VDC | |
| 4~20mADC+1 relay switch / Vs=18~32VDC | |
| Performance | |
| Accuracy➀ | ±0.5%F.S |
| Long-Term Stability | ±0.3%F.S/year |
| ➀Remark: Accuracy is comply with IEC60770 (non-linearity, hysteresis, repeatability) | |
| Switch Alert | |
| Switch Type | PNP/NPN |
| Load Capacity | ≤300mA 24VDC |
| Life Span | >1 million cycles |
| Relay Switch Alert | |
| Switch Type | Relay Switch |
| Load Capacity | ≤1ADC 24VDC |
| Life Span | ~100,000 cycles |
| LED Display | |
| Type | 4-digit numeric |
| Range | -1999~9999 |
| LCD Display | |
| Features | Analog bar graph,pressure unit display |
| Range | -1999~9999 |
| Temperature Characteristics | |
| Compensation Range | 0~70°C |
| Zero Temp Drift | ±1.0% F.S., comparing 25℃➁ |
| Span Temp Drift | ±1.0% F.S., comparing 25℃➁ |
| Environmental Conditions | |
| Temperature Condition | Ambient Temp: -40~70°C(LED Display), -20~60°C(LCD Display) |
| Media Temp: -40~125℃ | |
| Storage Temp: -30~70℃ | |
| Protection Rating | IP65 |
| ②Exception: ±2.0%FS. for 10 kPa range, 0~60℃ | |
| Component | Material |
| Pressure Port | Stainless Steel 304 |
| Stainless Steel 316L | |
| Sensor | 316L |
| O-Rings | NBR (-40~120°C) |
| FKM (-20~200°C) | |
| EPDM (-55~150°C) |
.jpg "LEFOO_LFDS68_Pressure_Switch_Transmitter_02(1).jpg")
.jpg "LEFOO_LFDS68_Pressure_Switch_Transmitter_03(3).jpg"){kind=spacer}
.jpg "LEFOO_LFDS68_Pressure_Switch_Transmitter_03(1).jpg"){kind=spacer}
4-digit LED or LCD on-site display;
Supports various types of switch outputs (PNP, NPN, relay);
Easy parameter configuration via buttons;
LED indicators for switch status monitoring;
Multiple process connections available: threaded, Tri-Clamp, etc.
This compact device LEFOO LFDS68 Pressure Switch Transmitter integrates pressure measurement, display, output, and control.
It widely used in:
Industrial automation;
Environmental protection petrochemical industry;
Water treatment systems.
Product Inquiry
