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LR-Cal LDM70 Digital Test Pressure Gauges0 pages
LR-Ca/
Digital Test Pressure Gauge LDM 70
battery operated, accuracy 0.125% or 0.25% FS
LDM 70
Rel. 2013010E
Digital Test Pressure Gauge LR-Ca/ LDM 70-E25: Accuracy ±0,125% FS
Digital Test Pressure Gauge LR-Ca/ LDM 70-K50: Accuracy ±0.25% FS
• Battery powered, rugged, rotatable housing (DS 70 mm)
• 4.5-digit LC display (digit height 11 mm)
• 6-digit additional display to show the selected pressure unit (height 7.5 mm)
• Pressure unit switchable (psi-bar/mbar-mWS-inHg-cmHg/mmHg-kPa/MPa)
• Easy configuration via three push buttons
• Ingress protection IP 65
• Ranges from 0/1.45 psi to 0/8,700 psi (0/100 mbar to 0/600 bar)
• MIN and MAX value storage
The display is continuously rotatable so that a clear readability is garanteed even in unusual installation
positions. The LR-Ca/ LDM 70 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, the LR-Ca/ LDM 70 can be set
to factory default values via menu.
Technica data: | Type LDM 70-E25 | Type LDM 70-K50 |
Pressure Ranges: (see tab. on back page) | all standard ranges, gauge pressure, absolute pressure, vacuum and compound ranges | all standard ranges 0/1.6 bar to 0/400 bar |
Nominal case diameter: | DS 70 mm / 27.6 inches | |
Accuracy (BFSL) | ±0.125% f.s. (ranges < 5.8 psi / 400 mbar: ±0.25% f.s.) | ±0.25% f.s. |
Measuring rate: | 5 per second | |
Thermal error (zero-point and span within temperature compensated range) | Tolerance band: Ranges < 0.1 bar: <± 2.0% f.s.; average TC: ±0.3% f. s. /10 K Ranges < 0.25 bar: <±1.5% f.s.; average TC: ±0.2% f.s. /10 K Ranges < 0.4 bar: <1.0% f.s.; average TC: ±0.14% f.s. /10 K Ranges < 1.0 bar: <0.1%f.s.; average TC: ±0.1% f.s. /10 K Ranges >1.0 bar: < ±0.75% f.s.; average TC: ±0.07% f.s. /10 K | <±0.2%f.s./10K |
Temp, compensated range: | Ranges <0.4 bar: 0...50°C; ranges >0,4 bar: 0...70°C | -25...+85°C |
Permissible temperatures: | Medium: -4/+185°F=-20/85°C; Ambient: -4/+158oF=-20/70"C; Storage: -22/+176°F=-30/80°C | |
Material display housing: | PA 6.6 polycarbonate | |
Material pressure port: | stainless steel 1.4571 / 1.4435 | |
Material diaphragm: | stainless steel 1.4435 | ceramic AI2Oa 96% |
Material seals: | wetted seals: FKM (optional: EPDM, NBR, others on request) | |
Display: | LCD 1.57" x 1.18"= 40 x 30 mm; 4 1/2 digit 7-segment-main display, digit height 11 mm, Indication range ±19999; 6-digit 14-segment additional display, digit height 7.5 mm | |
Electromagnetic compatibility: | emission and immunity according to EN 61326 | |
Mechanical stability: | vibration: 5 g RMS (20...2000 Hz); shock: 100 g / 11 msec. | |
Supply: | 3.6 V lithium batteries, 2 pes. (type 1/2 AA) | |
Data memory: | EEPROM (non-volatile) | |
Ingress protection: | IP 65 | |
Installation position: | any (the LDM 70 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 for LDM-70-E25 ranges <1 bar | |
Other data: | weight 300 g; AD-converter solution: 10 Bit;mech. operational life: > 100 x 106 pressure cycles; battery life: app.. 5 years in standby mode; | |
Pressure port: | 1/2" BSP male, 1/4" BSP male, 1/2" NPT male, 1/4" NPT male | |
The Digital Test Pressure Gauges LR-Ca/ LDM 70 are available as complete pressure
calibration kits (case, with calibration testpump LR-Ca/ LPP 30, LR-Ca/ LPP 60 or
LR-Ca/ LPP 700).
For a stationary use, as calibration pressure source we recommend our pressure
comparators (spindle pumps) series LR-Ca/ LSP.
DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. +49 (0) 7121-90920-0 » Fax +49 (0) 7121-90920-99 » DT-lnfo@Leitenberger.de • www.LR-Cal.de » www.druck-temperatur.de
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