LR-Cal LFC 80

Torque calibration device for bench mounting

Measuring ranges from 0...0.5 Nm to 0...2,000 Nm
Display in 9 different torque units
Accuracy ±0.2% FS
Incl. DAkkS-approved ACCREDIA certificate from 1/10 of full scale for clockwise movement,
Total measurement uncertainty according to EURAMET cg-15: ≤ 1% f.s.
(Measuring ranges 0.5 Nm and 2.5 Nm with factory calibration certificate)
Optional from 5 Nm additional DAkkS-approved ACCREDIA certificate for counterclockwise movement
Programmable "First PEAK" function, facilitates exact calibration
Optionally with data logger function
Free software LR-Cal LDM-COM
Optionally with clamping device LR-Cal LFC-ATCplus for calibration of torque wrenches according to ISO 6789-1 and ISO 6789-2

LR-Cal LFC 80
in carrying case

LR-Cal LFC-ATCplus clamping device

Free software
LR-Cal LDM-COM

Description

LR-Cal LFC 80 description

The LR-Cal LFC 80 is a very robust and compact device for checking and calibrating torque wrenches, screwdrivers and for other applications for the precise measurement of torques. The device records torques both clockwise (right-handed) and counterclockwise (left-handed).

The LR-Cal LFC 80 is powered by a built-in lithium-ion battery. An USB plug-in charger is included. When the battery is fully charged, the operating time until discharge is approximately 80 hours when the automatic power off function is activated. The LR-Cal LFC 80 display can be rotated 90° for easy reading even when set up vertically.

The unit is equipped with a USB 2.0 interface as standard. This can transmit 4,800 measured values per second in PEAK mode, thus with suitable software (interface protocol available in manual) e.g. a real-time curve can be displayed. It also has a programmable "First PEAK" function, which makes reproducible work much easier, even for inexperienced users. It is also possible to have PEAK values reset automatically after a programmable period of time.

In normal operating mode, the LR-Cal LFC 80 displays the currently recorded torque in real time (10 measurements per second) with high resolution. In PEAK mode (direction of rotation left AND right), the release torque of e.g. a torque wrench is precisely recorded. The measuring rate here is 4800 measurements per second, which means that release torques can be recorded very precisely.

Free software LR-Cal LDM-COM

Under “LR-Cal LFC 80: DOWNLOAD” at the top of this page you can download the free LR-Cal LDM-COM software (for Microsoft®Windows®). It offers you three operating modes:

Calibration (calibration table):
Recording of the data measured during calibration of devices and storage in a data table.
Data recording
Automatic recording (logging) of measured values (with date and time stamp) at an adjustable time interval.
Read out memory: (only for LR-Cal LFC 80 devices with optional data logger function)
Downloading data from the calibrator's memory.

Clamping device LR-Cal LFC-ATCplus

LR-Cal LFC-ATCplus clamping device for LR-Cal LFC 80

Clamping device LR-Cal LFC-ATCplus

The LR-Cal LFC-ATCplus clamping fixture is a device (for stable mounting on a workbench) with parallel guide and crank for accurate and reproducible movement of the test specimen (indicating or triggering torque wrench) for calibrations according to ISO 6789-1 and ISO 6789-2.

If the LR-Cal LFC-ATCplus fixture is operated with additional LR-Cal LFC 80 devices with further measuring ranges, a large measuring range span can be covered with one test stand. For each additional LR-Cal LFC 80 we recommend an additional base plate part no. LFC-ATC-PLUS-PLATTE to simplify and speed up the changeover considerably.

For example, to be able to cover a total range from 1 Nm to 1,000 Nm in accordance with the standards, you need a total of three LR-Cal LFC 80 devices, which are mounted alternately in the LR-Cal LFC-ATCplus clamping device:

1 x Code LFC80-0010 = measuring range 0...10 Nm
1 x Code LFC80-0100 = measuring range 0...100 Nm
1 x Code LFC80-1000 = measuring range 0...1,000 Nm
2 x Code LFC-ATC-PLUS-PLATTE = 2 additional base plates
1 x Code LFC-ATC-1000-PLUS = clamping device up to 1,000 Nm

Torque ranges

LR-Cal LFC 80 measuring ranges

Code LFC80-8050	0...0.5 Nm	Code LFC80-0100	0...100 Nm
Code LFC80-0002	0...2.5 Nm	Code LFC80-0250	0...250 Nm
Code LFC80-0005	0...5 Nm	Code LFC80-0500	0...500 Nm
Code LFC80-0010	0...10 Nm	Code LFC80-1000	0...1,000 Nm
Code LFC80-0025	0...25 Nm	Code LFC80-2000	0...2,000 Nm
Code LFC80-0050	0...50 Nm

Specification

LR-Cal LFC 80 specification

Total uncertainty acc. EURAMET cg-14:	1% (from 10% to 100% of the range)
Linearity and hysteresis:	≤±0.20% FS
Internal resolution:	24 bit
Normal mode measuring rate:	10 measurements per second
PEAK mode measuring rate:	4,800 measurements per second
Reference temperature:	23°C
Working temperature range:	0...50°C
Storage temperature range:	-10...+60°C
Temperature influence per 10°C:	on zero <=±0.015%; on sensitivity <=±0.005%
LC Display:	Figurs height 16 mm Backlight (blue) 1...60 s programmable additional bargraph indication
Programmiable resolution:	1, 2, 5, 10
Programmable digital filter	from 0 to 10 (in normal mode; not applicable in PEAK mode)
ZERO function:	working up to 100% FS
PEAK function:	Clockwise direction and Counter-clockwise direction
Programmable "First PEAK" function	Treshold value programmable 1...99% FS
Programmable AUTO PEAK RESET function:	Reset of PEAK value after programmable time
Programmable AUTO POWER OFF function:	From 1 to 30 Minuten (if measured value remains unchanged)
KEY BLOCK function:	Avoids parameter changements by unauthorised personnel
ring units (torque):	kNm, Nm, Ncm, dNm, kgf m, ozf ft, lbf ft, ozf inch, lbf inch
Communication interface:	USB 2.0
USB continuous data transmission	4,800 values per second (in PEAK mode)
Data transmission:	on demand
Maximale USB cable length:	5 meters
Power supply:	Built-in Li-Ion chargeable battery. Size 14500, 3.6 V
Battery charging:	via USB
Typical operating time when fully charged:	approx. 80 hours
Typiical charging time:	approx. 8 hours
Mechanical test item connection ISO 1174-1:	Square (female) Ranges 0.5/2.5/5/10 Nm: 1/4" Ranges 25/50 Nm: 3/8" Ranges 100/250 Nm: 1/2" Ranges 500/1,000 Nm: 3/4"
Maximal working load:	100% FS
Maximal overload:	150% FS
Burst load:	>300% FS
Housing protection degree:	IP 40 according to EN 60529
Material:	Aluminium and steel, black coated
Sensor material:	Stainless steel 17-4 PH

Options + accessories

LR-Cal LFC 80 options + accessories

Data logger function

Code: LFC80-DLOG

Option (surcharge):
The data logger function can work in two modes.

Automatic: cyclic recording (programmable 1s to 10h) in normal mode
Manual: Recording on demand (keystroke)

Capacity: 60,000 measured values
Integrated real time clock

The recorded measured values can be displayed on the device or transferred to a PC/laptop via USB. A communication protocol for PC software is listed in the operating manual.

RS232 interface

Artikel-Nr.: LFC80-RS232

Option (surcharge):If the distance between PC/laptop and LR-Cal LFC 80 is greater than 5 meters, the optional RS232 interface must be used (here up to 15 m line length possible).

RS232C, 19,200, 9,600 or 4,800 baud, transmission according to software requirements.

Connection DP9 female on rear side of housing. Use code LFC-RS232-KAB as cable.

USB/RS232 converter

Code: LFC80-RS232-USB

Accessory:
USB/RS232 converter for connection to PC/laptop if the basic device is equipped with the LFC80-RS232 option, i.e. an RS232 interface.

Certificate for left rotation

Code: LFC80-L-AZERT

Option (surcharge):Only for measuring ranges from 0...5 Nm:
DAkkS-approved ACCREDIA certificate for counterclockwise direction of rotation.

(Such a certificate for clockwise direction of rotation is included in the standard scope of delivery).

Adapter Set

Code: LFC80-ADAPTER-SET

Accessory:
Adapter set for the calibration of torque wrenches.
Suitable for all pressure ranges up to 1,000 Nm.

1 x 1/4" female x 3/8" male
1 x 3/8" female x 1/2" male
1 x 1/2" female x 3/4" male

Adapter 3/4" F x 1" M

Code: LFC80-ADAPT-34I-1A

Accessory:
Adapter for the calibration of torque wrenches:
Only suitable for range 0...2,000 Nm.

3/4" female x 1" male

Mounting bracket

Code: LFC-HALTER

Accessory:
Mounting bracket 90° for vertical mounting

Case

Code: LFC80-KOFFER

Accessory:
Storage and transport case with molded foam insert

Base plate

Code: LFC-ATC-PLUS-PLATTE

Accessory:
In order to simplify the change of reference devices LR-Cal LFC 80 when using the clamping fixture LR-Cal LFC-ATCplus with several LR-Cal LFC 80 devices (in order to have several measuring ranges available), we recommend for each additional measuring range (i.e. each additional LR-Cal LFC 80 device) an additional base plate with code LFC-ATC-PLUS-PLATTE.

Video

Calibration of a torque wrench according to ISO 6789-1 and ISO 6789-2
with torque calibrator LR-Cal LFC 80 with clamping device LR-Cal LFC-ATCplus

LR-Cal LFC 80 Torque calibration device for bench mounting

Description

LR-Cal LFC 80 description

Free software LR-Cal LDM-COM

Free software LR-Cal LDM-COM

Clamping device LR-Cal LFC-ATCplus

Clamping device LR-Cal LFC-ATCplus

Torque ranges

LR-Cal LFC 80 measuring ranges

Specification

LR-Cal LFC 80 specification

Options + accessories

LR-Cal LFC 80 options + accessories

Data logger function

RS232 interface

USB/RS232 converter

Certificate for left rotation

Adapter Set

Adapter 3/4" F x 1" M

Mounting bracket

Case

Base plate

Video

LR-Cal LFC 80

Torque calibration device for bench mounting