- The display is continously rotatable so that a clear readability is garanteed even in unusual installation positions. The LR-Cal LDM 70-E25 can be operated menu-driven via three push-buttons. Besides showing information about the nominal pressure range as well as minimal and maximal pressure of the process, several pressure units (psi, bar, mbar, mWC, inHg, cmHg, mmHg, kPa, MPa) and the position of the decimal point can be set. The instruments zero and span can be calibrated, and the LR-Cal LDM 70-E25 can be set to factory default values via menu.
- compact, rotatable housing (DS 70 mm)
- Battery powered
- Accuracy ±0.125% FS
- 4.5 digit LC diisplay (digit height 11 mm)
- 6 digit additional display to sho the selected pressure unit (height 7.5 mm)
- Pressure units selectable: psi, bar/mbar, mWs, inHg, cmHg/mmHg, kPa/MPa
- Easy configuration via three push-buttons
- Ingress protection IP 65
- Ranges from 0...1.6 bar to 0...400 bar plus compound ranges and absolute pressure ranges
- MIN and MAX value memory
Thông số kỹ thuật
- Nominal case diameter : DS 70
- Accuracy : ±0.125% FS BFSL
- Pressure port : 1/2" BSP male or 1/4" BSP male or 1/2" NPT male or 1/4" NPT male
- Measuring rate : 5 per second
- Thermal error : Tolerance band:
Ranges <= 0.1 bar: <=±2.0% FS; average TC: ±0.3% FS / 10K
Ranges <=0.25 bar: <=±1.5% FS; average TC: ±0.2% FS / 10K
Ranges <=0.4 bar: <=±1.0% FS; average TC: ±0.14% FS / 10 K
Ranges <=1.0 bar: <=±0.1% FS; average TC: ±0.1% FS / 10K
Ranges > 1.0 bar: <=±0.75% FS; average TC: ±0.07% FS / 10 K
- Temperature compensated range : Ranges <=0.4 bar: 0...50°C; Ranges > 0.4 bar: 0...70°C
- Permissible temperatures : Medium: -20...+85°C; Ambient: -20...+70°C; Storage: -30...+80°C
- Housing material : PA 6.6 Polycarbonate
- Pressure port material : Stainless steel 1.4571 / 1.4435
- Diaphragm material : Stainless steel 1.4571
- Gasket material : Ranges <=40 bar: FKM/EPDM; Ranges >40 bar: NBR
- Display : LCD, visible size 40x30 mm, 4 1/2 digit 7 segment main display, digit height 11 mm, range ±19999; 6-digit 14 segment additional display, digit height 7.5 mm
- Electromagnetic compatibility : Emission and immunity according to EN 61236
- Mechanical stability : Vibration: 5 g RMS (20...2000 Hz); Shock: 100 g / 11 ms
- Power supply : 2 x 3.6 V 1/2 AA lithium batteries
- Data memory : EEPROM (non-volatile)
- Ingress protection : IP 65
- Installation position : any (the instrument is calibrated in vertical position with pressure port down. If this position is changed on installation, there can be slight deviations in the zero-point.
- Weight : 300 g
- A/D-converter resultion : 10 bit
- Operational life : >100 x 106 pressure cycles
- Battery life time : approx. 5 years in standby mode