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Digital Handheld Manometer, LR-Cal LHM
The particularly versatile and high-precision handheld LR-Cal LHM is not only suitable for highly accurate measurements of pressures, forces, weights and torques on site, but above all for calibration and adjustment tasks – mobile and in the laboratory.
The analog/digital converter processes 50,000 digits, the internal sensors and the available external sensors (2mv/V) can be calibrated and linearized menu-driven.
The particularly versatile and high-precision handheld LR-Cal LHM is not only suitable for highly accurate measurements of pressures, forces, weights and torques on site, but above all for calibration and adjustment tasks – mobile and in the laboratory.
The analog/digital converter processes 50,000 digits, the internal sensors and the available external sensors (2mv/V) can be calibrated and linearized menu-driven.
Features
- Internal sensors for force or pressure
- External sensors for torque and pressure
- Accuracy torque: ±0.1% FS or ±0.2% FS
- Accuracy force: ±0.05% FS
- Accuracy pressure: ±0.05% FS or ±0.1% FS
- Up to 7 external sensors (automatic detection), also mixed (torque, force/weight, pressure)
- Can be calibrated, adjusted and linearized
- Sturdy and handy aluminum housing
- Programmable measurement rate, up to 4,800 measurements per second
- Peak value memory, programmable “First PEAK” detection
- Data logger (130,000 measured values)
- 15 pressure units, 9 force/weight units, 8 torque units
- Programmable filter and average value functions
- Optional WIRELESS data transmission
LR-CAL LHM
LR-Cal LHM specification
| Supply: | Built-in chargeable Li-Ion battery Akku, 3.7 V, 750 mA, type 14500 |
| Operating time with fully charged battery: | approx. 24 h (if backlight is switched off and no data logging) |
| Graphic display: | LCD 128 x 64 dots with 3 level of back lightning, 180° rotatable on key press |
| Selectable pressure units: | bar, mbar, psi, Mpa, kPa, Pa, mH2O, kg/cm², mmHg, cmHg, inHg, atm, mHg, mmH2O |
| Selectable force/weight units: | kg, g, t, N, daN, kN, MN, lb, klb |
| Selectable torque units: | Nm, Nmm, kgm, kNm, in/lbf, ft/lbf, gcm, kgmm |
| Selectable displacement units: | mm, inch |
| Internal resolution: | 24 bit |
| Readings per second (programmable): | 5, 10, 20, 50, 100, 300, 600, 1200, 2400 or 4800 |
| Max. USB transmission rate: | 50 ms (in continuous mode) |
| Digital filter (moving average): | 1, 2, 4, 8, 16 or 32 points; programmable time value |
| Programmable resolution: | 1, 2, 5, 10, 20, 50 or 100 |
| ZERO function: | 100% FS, via key press |
| PEAK function: | Positive and negative, with programmable “First PEAK” detection |
| Data logger: | 130,000 values, programmable (1 s to 24 h) or key press |
| Reference temperature: | 23°C |
| Working temperature: | 10…50°C |
| Storage temperature: | 10…60°C |
| Protection degree: | IP 40 |
| Housing material: | Glassfiber-reinforced technopolymer (Version with integrated force sensor: black coated aluminum) |
| Dimensions: | 176 x 79 x 32 mm |
| Max. number of external sensors: | 7 (automatic recognition) |
| Interface: | USB 2.0 (optional: WIRELESS, if ordered together with option code LHM-WF) |
LR-Cal LHM with internal pressure sensor
- Accuracy ±0.05% FS (with option LHM-KL005) or ±0.1% FS incl. factory certificate of calibration
| Code | Measuring range |
Code | Measuring range |
 |
| LHM-0100-GP | 0…100 mbar gauge pressure | |||
| LHM-0500-GP | 0…500 mbar gauge pressure | LHM-0500-AP | 0…500 mbar absolute pressure | |
| LHM-1000-GP | 0…1 bar gauge pressure | LHM-1000-AP | 0…1 bar absolute pressure | |
| LHM-2500-GP | 0…2,5 bar gauge pressure | LHM-2500-AP | 0…2,5 bar absolute pressure | |
| LHM-5000-GP | 0…5 bar gauge pressure | LHM-5000-AP | 0…5 bar absolute pressure | |
| LHM-0100-VA | -100…+100 mbar | LHM-0100-DP | 0…100 mbar differential pressure | |
| LHM-0500-VA | -500…+500 mbar | LHM-0500-DP | 0…500 mbar differential pressure | |
| LHM-1000-VA | -1…+1 bar | LHM-1000-DP | 0…1 bar differential pressure | |
| LHM-2500-VA | -1…+2,5 bar | LHM-2500-DP | 0…2,5 bar differential pressure | |
| LHM-5000-VA | -1…+5 bar | LHM-5000-DP | 0…5 bar differential pressure | |
External pressure sensors LR-Cal LHM-TP16
- Accuracy ±0.05% FS (with option LHM-P-KL005) or ±0.1% FS
| Code | Measuring range |
Code | Measuring range |
 |
|
| LHM-P-0010 | 0…10 bar | LHM-P-0350 | 0…350 bar | ||
| LHM-P-0020 | 0…20 bar | LHM-P-0700 | 0…700 bar | ||
| LHM-P-0050 | 0…50 bar | LHM-P-1000 | 0…1,000 bar | ||
| LHM-P-0100 | 0…100 bar | LHM-P-1500 | 0…1,500 bar | ||
| LHM-P-0250 | 0…250 bar | LHM-P-2000 | 0…2,000 bar |
