Data Loggers | LM-P Pressure
LM-P-PRO Series Differential Pressure Indicator / Data logger
The LM-P-PRO series of differential pressure data logger / indicator is very helpful in monitoring differential pressure especially for clean rooms. Large 0.56” LED digital display eliminates the human error in reading the data. The device is field programmable for most common of the eight measuring units. The decimal point gets selected automatically for displaying with best resolution.
It also has a feature to set the high and low alarm limit. Whenever the limit is crossed, appropriate LED indicates the alarm condition. Display also starts blinking, for better attention.
Programming of various parameters like, unit, alarm limits, calibration parameters (zero and span), communication parameters etc. are all settable through 4 keys. Data is scanned every second. It has RS485 2/4 wire communication port to connect to any SCADA using MODBUS RTU/ASCII protocol. User can get the current data and device identification information over protocol.
Device also has an optional memory to store the data. It is possible to store the data at an interval between 1 second to 18 hours interval . The stored data can only be retrieved through our web- based data acquisition software gtekNetTM. It is also possible to configure the entire device from this software. gtekNetTM enables the user to see, modify, generate report with 21CFRPart 11 compliance using any standard browser from anywhere over network connected device.
Features
- Differential Pressure
- 8 engineering units of measure → Pascal, KPA, mBar, mmWC, inWC, mmHg, InHg, PSI
- Digital Display
- Alarm set point high / low
- Alarm Indicator
- Wide power supply 5-30V DC
- RS 485 MODBUS compatible
- SS 314 Front facia
Specification
| Specifications For LM-P Pro RS485 | |
| Model No | LM-P Pro RS485 |
| Display Details | |
| Display | Digital, 4 digits ultra-bright 0.54” LED Numeric/semi alphabetic display |
| Status Indicator | Unit Indication, High and Low Alarm Indication, and storage on Indication |
| Display Refresh rate | 1 reading / second |
| Analog Input Details | |
| Input Media | Air and non-combustible and non-corrosive gases.
For Wetted Materials, consult factory. |
| Pressure Sensor | MEMS sensor either Differential or Absolute pressure |
| Measurement parameters
[ 8 units] |
Pascal (PA) ,Kilo pascal (KPA), milibar (mbar), psi (PSI), mm of Water Column (mmWC), inch of Water Column (INWC), mm of Hg (mmHG), inch of Hg (INHG) |
| Measuring range Pressure | -500 to +500 pascal; others available on request |
| Pressure Accuracy | ± 1.5 %FSD |
| Pressure Input port | Quick Connect/Disconnect port 4 mm tube ID |
| Environmental conditions | |
| Temperature | (Operating) 5 to +50 oC
(Storage) -40 to +125 oC |
| Relative Humidity | (Operating) 10 to 80 % RH Noncondensing
(Storage) 5 to 90 % RH Noncondensing |
| Altitude | <2000 meter |
| Batch Storage Data/Memory Details | |
| Start / Stop Batch | Remote Start – Stop through gtekNetTM |
| Store Interval | 0 To 240 min in Step of 1 Sec |
| Memory Size | 4000 records totals; Rollover |
| Power Requirements | |
| Supply Voltage | 5 – 30 V DC,1 A (DC Adapter Operated) |
| Communication Details | |
| Communication | EIA 4 wire RS 485 |
| Protocol | Modbus RTU / ASCII Protocol |
| Baud rate | User settable – 4.8k, 9.6k, 19.2k & 38.4k bps |
| Parity | User settable – None, Even & Odd |
| Device Address | 1 to 240 – User settable |
| Alarm Details | |
| Alarm Set-point | High/Low individually settable |
| Buzzer | Audible alarm on high/low condition |
| Alarm high/low status | High/low individual status LEDs |
| Mechanical Dimensions and Mounting | |
| Housing Material | ABS Plastic |
| Mounting Orientation | Mounting unit in vertical plane |
| Size ( L x W x D) mm | 190 x 190 x 40 |
| Panel Cutout (Diameter) mm | 115 |
| Housing (Diameter) mm | 112 |
| Weight | 500gms approx |
Accessories
- Device calibration certificate
