LPN-DP Differential Pressure Transmitter
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The Intech LPN-DP (Rev 1) Series Differential Pressure Transmitters provide a very cost effective solution for pressure applications that require high accuracy over very low operating pressure ranges. The sensor is a solid state device and hence offers reliability and long life. The series is designed for use with
non-corrosive, non-ionic working fluids such as air, dry gases and the like.
The LPN-DP (Rev 1) can be used to measure bipolar differential, gauge pressure or vacuum.
LPN-DP Features #twoj_fragment1-1 LPN-DP Ordering Info #twoj_fragment1-2
- Very Low Pressure Resolution.
- Wide range selection.
- Integral Display.
- Stable Processor Technology.
- Temperature Compensation.
- IP67 Enclosure.
- Fast Response Time.
- High Accuracy & Linearity.
- Compact Size.
- Reverse Polarity Protection.
- Low Cost.
- Easy to Install.
| LPN-DP-100mm |
Differential Range within ±20 to ±200mm W.G Factory set to 0-100mm W.G |
| LPN-DP-1000mm |
Differential Range within ±200 to ±2000mm W.G Factory set to 0-1000mm W.G |
| LPN-DP-100kPa |
Differential Range within ±20 to ±200kPa Factory set to 0-100kPa |
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LPN-H Humidity & Temperature Transmitter
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The Intech LPN-H is a complete relative humidity and temperature sensing module, with two loop powered 4~20mA output signals, representing 0~100%RH and 0~100ºC.
Two versions are available:
1. Wall mount.
2. Duct mount.
Both versions come complete in an industry standard aluminium connection head.
The digital relative humidity sensor and temperature compensating sensor protrude from the head inside a protective cap. This cap allows air to circulate to the sensors.
LPN-H Features #twoj_fragment2-1 SHT25 Sensor #twoj_fragment2-2 LPN-H Ordering Info #twoj_fragment2-3 LPN-H Calibration System #twoj_fragment2-4
- NEW Sensirion SHT25 Digital Humidity Sensor.
- Long Term Stability.
- Fast response: 4 seconds from 0 to 100%RH under ideal conditions.
- Dual 4~20mA Outputs.
- %RH Temperature Compensated Linear Output.
- Pt100 RTD Sensor.
- Temperature Output 0~100ºC (0~200ºF optional).
- Temperature Output Linearised.
- Very Compact Design.
- High Accuracy.
- Low Cost.
- Easy to Install.
- Reverse Polarity Protection.
- Wide Power Supply Range.
- Rugged and reliable.
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SHT25 - Digital Humidity Sensor [RH&T]
High-precision version of the world's smallest digital humidity sensor.
The new SHT25 is the high-end model of Sensirion's new generation of digital humidity and temperature sensors. Compared to the standard version, an even higher level of precision (1.8% RH and 0.2°C typical values) can be guaranteed. The fully calibrated and reflow solderable SHT25 is characterized by the same unique features than the humidity sensor SHT21. It does contain the same newly designed sensor chip that is encapsulated in a DFN 3-0 package of 3 x 3 x 1.1 mm. The complete overmolding - with the exception of the humidity sensor area - protects the capacitive humidity sensor against external impact and facilitates excellent long-term stability.
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| Features: |
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| Output |
I2C digital |
| Energy consumption |
3.2uW [at 8 bit, 1 measurement/s] |
| RH operating range |
0 - 100% RH |
| T operating range |
-40 - +125°c |
| RH response time |
8 sec [tau 63%] |
Maximal accuracy limits for relative humidity and temperature
 
| LPN-H-W [rev 1] |
Wall Mount, 0~100%RH Transmitter, 0~100ºC Transmitter. |
| LPN-H-D [rev 1] |
220mm Duct Mount, 0~100%RH Transmitter, 0~100ºC Transmitter.
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| LPN-H-F |
100mm Flange for LPN-H-D.
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| LPN-H-75 |
Calibration canister with 75% RH salt solution. |
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| LPN-H-43 |
Calibration canister with 43% RH salt solution. |
| LPN-H-33 |
Calibration canister with 33% RH salt solution. |
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LPN-LUX Light Intensity 4-20mA Output Transmitter (replaces the TWN-LUX)
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The LPN-LUX incorporates an integrated light sensor within an industrial IP66 rated sealed enclosure and is especially designed for high precision linear applications. The sensor has a flat glass window with a built in colour correction filter, giving an approximation to the spectral response in the human eye.
LPN-LUX Features #twoj_fragment3-1 LPN-LUX Ordering Info #twoj_fragment3-2 LPN-LUX Specifications #twoj_fragment3-3
- Various Lux Ranges Available.
- 2 wire 4~20mA Output (Loop Powered).
- High Accuracy.
- IP66 Enclosure.
- Low Cost.
- Easy to Install.
- Reverse Polarity Protection.
| LPN-LUX |
Standard Calibration: 1-1000lux Nominal. |
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Special Calibration ranges available: 0-100, 0-500, 0-5000, 0-10000lux. |
| Input |
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0~1000lux - Standard Calibration. |
| Output |
Current |
2 wire 4~20mA (Loop Powered). |
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Load Resistance |
600Ω @ 24Vdc. |
| Power Supply |
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8~33Vdc (Loop Powered). |
| Temperature Coefficient |
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0.15% per 1°C. |
| Operating Temperature |
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0~60C (Storage Temp. -20~80C). |
| Operating Humidity |
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5~85% RH Max. Non-Condensing. |
| Analogue/Digital Converter |
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12 Bit. |
| EMC Compliances |
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Emissions EN 55022-A. Immunity EN 50082-1. |
| Safety Compliances |
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EN 60950. |
| Cable Length |
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2m. |
| Enclosure |
Type |
Polycarbonate. |
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Ratings |
IP66 rated, RoHS Compliant,
UL 94 HB Flammability Rating. |
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Dimensions |
L=64mm, W=58mm, H=35mm
(Length including mounting flanges = 94mm). |
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LPN-P Potentiometer Non-Isolated Transmitter
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LPN-P Features #twoj_fragment4-1 LPN-P Ordering Info #twoj_fragment4-2
- Field Programmable Input Ranges.
- High Accuracy.
- 40~200mv Output Test Signal.
- LED Indication of Loop Current.
- Low Cost.
- Easy to Install.
- Compact DIN Rail Mount Enclosure.
- Available Standard or Special Calibration.
- Reverse Polarity Protection.
| LPN-P |
Standard 0-100% Input |
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Programmable Input Range Calibration
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LPN-R RTD Pt100 In-Head Non-Isolated Transmitter
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LPN-R Description #twoj_fragment5-1 LPN-H Ordering Info #twoj_fragment5-2
- Field Programmable.
- Pt100 RTD Standard Input.
- High Accuracy 0.1%.
- Linear With Temperature.
- 40~200mV Output Test Signal.
- LED Indication of Loop Current (CL).
- Low Cost.
- Easy to Install.
- Compact DIN Rail Mount Enclosure.
- Available Standard or Special Calibration.
- Reverse Polarity Protection.
- Available With One or Two Transmitters per Enclosure.
| LPN-R-X1 |
Wall Mount, 0~100%RH Transmitter, 0~100ºC Transmitter. |
| LPN-CT |
-1 |
-1 |
-1 |
-1
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| EN |
SB |
ST |
Ramge eg: -50/50ºc
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| Enclosure [EN] |
Sensor Break [SB] |
Sensor Type [ST] |
| EN |
IP67 Enclosure L-110 W-80 H65mm |
U |
Upscale |
P |
Pt100 |
| X1 |
DIN Rail Mount: 1Tx L100 W-22.5 H-100mm |
D |
Downscale |
S |
Specify |
| X2 |
DIN Rail Mount: 2Tx L-100 W-22.5 H-100mm |
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LPN-R-H RTD Pt100 In-Head Non-Isolated Transmitter
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LPN-R-H Features #twoj_fragment6-1 LPN-LUX Specifications #twoj_fragment6-2 LPN-LUX Ordering Info #twoj_fragment6-3
- Field Programmable.
- Pt100 RTD Standard Input.
- High Accuracy 0.1%.
- Linear With Temperature.
- LED Indication of Loop Current (CL).
- Low Cost.
- Easy to Install.
- Compact Industrial Head Mount Enclosure.
- Dual mounting holes for 33mm or 40mm.
- Available Standard or Special Calibration.
- Reverse Polarity Protection.
- Also Available in Conduit Box, or with DIN Rail Mount Foot.
| RTD Input |
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Pt100 DIN [3 wire type] |
| Sensor Current |
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0.5mA Nominal |
| Lead Wire Resistance |
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5Ω/Wire max |
| Zero Range |
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-100°c to 100°c |
| Span Range |
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30°c to 600°c |
| Output |
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2 wire 4-20mA [loop powered] |
| Power Supply |
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10-33Vdc [loop powered] |
| Supply Voltage Sensitivity |
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<±0.005%/VFSO |
| Output Load Resistance |
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700Ω @ 24Vdc [50Ω/V above 10Vdc ] |
| Maximum Output Current |
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Limited to <26mA typical |
| Sensor Fail |
- Upscale |
23mA Min typical |
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- Downscale |
3.8mA Max typical |
| EMC Emissions & Immunity Compliance |
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EN 55022-A & EN 50082-1 |
| Response Time |
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200msec typical
[from 10 to 90% 50msec typical]
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| Accurate to |
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<±0.1% FSO typical |
| Linearity & Repeatability |
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<±0.1% FSO typical |
| Ambient Drift |
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<±0.1%/C FSO typical |
| RF Immunity |
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<±1% Effect FSO typical |
| Operating Temperature |
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-20°c - 80°c |
| Storage Temperature |
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-30°c - 90°c |
| Operating Ambient Humidity |
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5 - 95% RH Max non-condensing |
| LPN-R-H |
Standard calibration; Pt100, 0-100°c input, Upscale Break |
| LPN-R-H |
-1 |
-1 |
-1 |
| EN |
SB |
Range eg: -50/50°c |
| Note 1: |
Ranges can be specified within the following limits. Zero Range: -10ºc to 100ºc. Span range: 30ºc to 600ºc. |
| Note 2: |
Downscale Sensor Break is factory set and minimum order quantities apply |
| Enclosure [EN] |
Sensor Break [SB] |
| I |
Standard LPN-R-H head mount transmitter |
U |
Upscale |
| C |
LPN-R-H in conduit Two Way J-Box 20mm |
D |
Downscale |
| D |
LPN-R-H mounted on DIN Rail Mount Foot |
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