- functions: absolute air pressure meter, difference pressure meter
- measurement: air pressure
- two cable connection
- digital result transmission to long distances
- versions covering different scope of measurements
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Pressure gauge LB-716P is designed for absolute air pressure measurement and a pressure gauge LB-716D is designed for measurement of differences between two measurement stub pipes placed on the outside of a device casing. They are electronic devices, stationary, of small size, powered from an outside power supply.
The device uses for measurement data from a semiconductor pressure
sensor. Basing on the knowledge of calibration data stored during the
calibration process in a device's nonvolatile memory (each device is
calibrated separately) the microprocessor (built-in the device) counts
the actual pressure measurement result. The measurement results are
sent (in a digital form- current loop) from the device to a supervisory
system of data collection using: a concentrator LB-731,
a converter LB-486, a reading - registering
panel LB-724D or (by using a passage LB-730
through the interface RS-232C) to a PC computer. The interface
parameters allow on sending
data and powering the device using one two cable line of any polarity.
Length of the sending line is limited only by the resistance of the
cable used (the resistance of both cable conductors cannot be more than
100 om).
Pressure gauges LB-716P and LB-716D are made in few versions that
differ in the scope of pressure measurement.
Each meter LB-716x can have a calibration
certificate attached issued by the
Air Force Technical Institute or LAB-EL Calibration Laboratory.
| SCOPE OF ABSOLUTE AIR PRESSURE MEASUREMENT - LB-716P | ||||
|---|---|---|---|---|
| Version | Scope of readings | Measurement uncertainty | Measurement resolution | |
| pressure | in the scope | |||
| LB-716P350 | 10..+350 hPa | +/-1 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716P1000 | 10..+1000 hPa | +/-2 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716P2000 | 20..+2000 hPa | +/-5 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716P4000 | 50..+4000 hPa | +/-10 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716P6800 | 50..+6800 hPa | +/-15 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716P10000 | 50..+9999,9 hPa | +/-25 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| SCOPE OF DIFFERENCE AIR PRESSURE MEASUREMENT - LB-716D | ||||
|---|---|---|---|---|
| Version | Scope of readings | Measurement uncertainty | Measurement resolution | |
| pressure | in the scope | |||
| LB-716D2 | -250..+250 Pa | +/-1,5 Pa, +/- 1 last digit |
0..50 °C | 0,1 Pa |
| LB-716D10 | -999,9..+999,9 Pa | +/-3 Pa, +/- 1 last digit |
0..50 °C | 0,1 Pa |
| LB-716D20 | -2000..+2000 Pa | +/-5 Pa, +/- 1 last digit |
0..70 °C | 1 Pa |
| LB-716D70 | -7000..+7000 Pa | +/-18 Pa, +/- 1 last digit |
0..70 °C | 1 Pa |
| LB-716D350 | -350..+350 hPa | +/-90 Pa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716D1000 | -999,9..+999,9 hPa | +/-2,5 hPa, +/- 1 last digit |
0..70 °C | 0,1 hPa |
| LB-716D2000 | -2000..+2000 hPa | +/-5 hPa, +/- 1 last digit |
0..70 °C | 1 hPa |
| LB-716D4000 | -4000..+4000 hPa | +/-10 hPa, +/- 1 last digit |
0..70 °C | 1 hPa |
| LB-716D6800 | -6800..+6800 hPa | +/-17 hPa, +/- 1 last digit |
0..70 °C | 1 hPa |
| LB-716D10000 | -9999..+9999 hPa | +/-25 hPa, +/- 1 last digit |
0..70 °C | 1 hPa |
| WORK CONDITIONS | |
|---|---|
| Maximum scope of temperatures | -40..+85 °C |
| Scope of humidity (without condensation) | 0..100 % |
| POWER SUPPLY | ||
|---|---|---|
| Scope of voltage |
8..24V DC | |
| Energy consumption | 15mA | average |
| 25mA | maximum | |
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Produced by: LAB-EL Laboratory Electronics 68b, Bodycha Str., 02-495 Warsaw tel: (022) 667 71 18, 0601 209656, fax: (022) 867 53 32 e mail: info@label.com.pl home page: http://www.label.com.pl internet meteorological station: http://www.meteo.waw.pl meteorological station on a mobile phone: wap.meteo.waw.pl Last updated: 08.07.2004 |
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