LR-Cal LDM 80
Precision pressure reference instrument
Accuracy ±0.1/0.2% FS, pressure ranges up to 3,000 bar

LR-Cal LDM 80 digital reference pressure gauge

Precision digital pressure gauge
Accuracy ±0.1% FS or ±0.2% FS
0...100 mbar to 0...3,000 bar
Measurement and indication of the medium temperature
-10...+70°C ±1°C
USB interface
Chargeable Li-Ion battery

LR-Cal LDM 80 dimensions

LR-Cal LDM 80
with antenna for wireless data transmission

LR-Cal LDM 80
with
LR-Cal LSP 1000-H
pressure test pump

Description

LR-Cal LDM 80 description

The LR-Cal LDM 80 digital reference pressure gauge and data logger features outstanding long-term stability, a 16-bit A/D converter and advanced microprocessor control. It is ideal for reference pressure measurements, as well as testing and calibration tasks.

Features

Accurate pressure measurements from 0...100 mbar to 0...3,000 bar
Accuracy ±0.2% FS or ±0.1% FS
Data recording (data logger) up to 60,000 values
Measurement and display of the medium temperature
range -10...+70°C, accuracy ±1°C, resolution 0.1°C
Large, excellent readable LCD display, incl. bargraph display, background illumination
USB interface as standard
10 different pressure units selectable
Programmable digital filter
Zeroing at the touch of a button ("Zero function")
Min. and max. value storage ("PEAK function")
Pressure connection 1/2" BSP bottom male thread (from 1,000 bar with 60° sealing cone)

The LR-Cal LDM 80 precision digital manometer, together with the LR-Cal LPP 10, LR-Cal LPP 40 and LR-Cal LPP 60 (pneumatic) and LR-Cal LPP 700 and LR-Cal LPP 1000 (hydraulic) calibration hand test pumps, is ideally suited for on-site use. In conjunction with the LR-Cal LSP comparative test equipment (spindle pumps), it is also very well suited for operation in the laboratory and in the workshop.

The device measures not only the pressure but also the medium temperature. The data logger function stores up to 60,000 measured values (either 60,000 pressure values or 30,000 pressure values plus 30,000 temperature values). The user can select or switch between ten pressure units, change the display resolution, and program a digital filter. This makes the LR-Cal LDM 80 digital fine-measurement manometer particularly well suited for measurement and calibration tasks of all kinds.

A practical carrying case, a USB connection cable, a plug-in charger for the built-in rechargeable battery and a traceable factory calibration certificate are included as standard.

As standard, the LR-Cal LDM 80 digital reference pressure gauge and data logger is equipped with a USB interface. Optionally, the data can be transmitted wirelessly, to a PC or laptop. An optional version with pressure switch test function and connection is also available.

Optionally, the LR-Cal LDM 80 precision digital manometer can be featured with

with connection socket and connection cable for pressure switch tests
with antenna for wireless data transmission

For gentle application, we recommend the rubber protective cap, code LDM80-GK, which is available as an accessory.

Specification

LR-Cal LDM 80 specification

Accuracy	±0.1% FS with option LDM80-KL01; ±0.2% without this option
Internal resolution	65,000 digits
Measuring rate (if digital filter is set to zero)	10 per second (every 100 ms a measurement)
Filter	Programmable digital filter (for stabilisation of displayed values also at fluctuating pressure values etc.)
Temperature measurement	Resolution 0.1°C, Accuracy ±1°C (Range -10...+70°C, ambient temp. 0...50°C, temperature units °C + °F)
Reference temperature	+23°C
Working temperature	-10...+70°C
Storage temperature	-10...+80°C
Temperature influence	≤±0.002°C / 1°C
Display	LCD, figures height 13 mm, programmable backlight
Programmable resolution	1, 2, 5, 10
Interface	USB 2.0 (on PC side virtual COM port, adjustable baud rate 19200, 9600 or 4800) OPTIONAL: WIRELESS 433 MHz, RF transmission 200 m in free air, max. 10 transmissions per sec.
ZEROing	Via key press, up to 50% FS
Maximal/minimal values	PEAK-functions, active for positive or negative pressure, 10 measurements per sec.
Pressure units (selectable)	bar, mbar, psi, kPa, kg/cm², mHg, mmHg, mmH2O, mH2O
Temperature units (selectable)	°C, °F
Data logger	max. storage frequency 1 value per second; Capacity max. 60,000 values (60,000 pressure values or 30,000 pressure values plus 30,000 temperature values)
Supply	Built-in Lithium-Ion battery 3.7 V (size 14500, up to about 3 months autonomy without charging, if backlight is set to zero and without data transmissions. Charging time apporox. 8 hours (via PC/Laptop or supplied USB charger)).
Pressure port	1/2" BSP male thread, recommended seal: USIT A 63-18 Pressure ranges ≥ 1,000 bar: with one of the supplied sealing cones 60° Optional: 1/2" NPT male, or for pressure ranges up to 700 bar also 1/4" BSP male or 1/4" NPT male
Pressure limits	Static pressure 100% FS, max. permissible pressure up to 150% FS, burst pressure >300% FS; at highly dynamic pressure max. 75% v.E.
Pressure port mounting	Tightening wrench 27 mm, tightening torque 28 Nm
Protection degree	IP 40
Materials	Indicator housing: black coated aluminium, pressure sensor and port: stainless steel

Measuring ranges (pressure + medium temperature)

LR-Cal LDM 80 measuring ranges (pressure + medium temperature)

Range [bar]	maximal resolution [bar]
0...0.1 (0...100 mbar)	0.1 mbar
0...0.25 (0...250 mbar)	0.1 mbar
0...0.5 (0...500 mbar)	0.1 mbar
0...1	0.001
0...2.5	0.001
0...5	0.001
0...10	0.01
0...20	0.01
0...50	0.01
0...100	0.1
0...250	0.1
0...350	0.1
0...500	0.1
0...700	0.1
0...1,000 (incl. 2 pcs. sealing-cone 60°)	1
0...1,500 (incl. 2 pcs. sealing-cone 60°)	1
0...2,000 (incl. 2 pcs. sealing-cone 60°)	1
0...2,500 (incl. 2 pcs. sealing-cone 60°)	1
0...3,000 (incl. 2 pcs. sealing-cone 60°)	1
-1...+1	0.001
-1...+2,5	0.001
-1...+5	0.001
-1...+20	0.01
-1...+40	0.01
-1...+60	0.1
0...0.5 bar absolute	0.0001
0...1 bar absolute	0.001
0...2.5 bar absolute	0.001
0...5 bar absolute	0.001
0...10 bar absolute	0.01
Range [°C]	maximal resolution [°C]
-10...+70°C (at ambient temperature 0...50°C)	0.1

Scope of standard supply

LR-Cal LDM 80 scope of standard supply

Precision digital pressure gauge (reference pressure gauge) LR-Cal LDM 80
Plug-in charger 115...240 VAC (connection to USB socket)
USB cable
Small storage case
Factory calibration certificate
For measuring ranges from 1,000 bar: 2 pcs. sealing cone 60° for the pressure connection
Operating manual DE+EN

Options + accessories + spare parts

LR-Cal LDM 80 options + accessories + spare parts

Accuracy ±0.1% FS

Code: LDM80-KL01

Option (surcharge):
Accuracy ±0.1% FS
(instead of ±0.2% FS)
Incl. factory calibration certificate

Pressure conn. 1/4" BSP M

Code: MP-14-BSP

Option (surcharge):
Pressure connection 1/4" BSP male
(instead of 1/2" BSP male)
Only for measuring ranges
up to max. 700 bar!

Pressure conn. 1/4" NPT M

Code: MP-14-NPT

Option (surcharge):
Pressure connection 1/4" NPT male
(instead of 1/2" BSP male)
Only for measuring ranges
up to max. 700 bar!

Pressure conn. 1/2" NPT

Code: MP-12-NPT

Option (surcharge):
Pressure connection 1/2" NPT external
(instead of 1/2" BSP male)
For all measuring ranges

Switch test function

Code: LDM80-ST

Option (surcharge):
Device version with pressure switch test function
With connection socket on the device and connection cable

WIRELESS version

Code: LDM80-WF

Option (surcharge):
Device version with antenna for wireless measurement data transmission.
On the receiver side, WIRELESS receiver code PC-WIRELESS is required.

WIRELESS receiver

Code: PC-WIRELESS

Accessory:
WIRELESS receiving antenna for connection to PC/laptop via USB.
The device option art.no. LDM80-WF is required.

Rubber protection cap

Code: LDM80-GK

Accessory:
Protective rubber cap (yellow)

Protects the device from damage and shocks

Volume reducer

Code: VRS-G12

Accessory:
Volume reducer

Reduces the internal volume of the pressure port, only required when used with LR-Cal pneumatic pressure test pumps

Charger

Code: LHM-LDM80-LADEGERAET

Spare part:
Plug-in charger 110...240 VAC
Connection to USB socket of the device
(Note: 1 charger is already included in the scope of delivery of the device).

Sealing cone 60°

Code: TLDMM-DK

Spare part:
Sealing cone 60°
for insertion into the 1/2" BSP pressure connection for pressure ranges of 1,000 bar and above
(2 pieces already included in the standard scope of delivery)

LR-Cal LDM 80Precision pressure reference instrumentAccuracy ±0.1/0.2% FS, pressure ranges up to 3,000 bar