Torque Meter (bench type)
Model LR-Cal LFC 80
for test and calibration purposes
- Ranges from 0...0.5 Nm to 0...2000 Nm
- You can select from 9 torque measuring units
- Accuracy ±0.20% FS
- Incl. ACCREDIA (DAkkS) certificate from 1/10 of range for clockwise direction,
Total uncertainty <=1% FS
(Ranges 0...0.5 Nm and 0...2.5 Nm incl. factory certificate) - Optional additional ACCREDIA (DAkkS) Zertifikat for counter-clockwise direction
- PEAK function for exact detection of the "snap-point"
(clockwise and counter-clockwise direction) - Programmiable "First PEAK" Funktion, makes calibration more easy
- Optional: with data logging functionality
- With optional support LR-Cal LFC-ATCplus suitable for calibration as per ISO 6789-1 and ISO 6789-2.
Description
LR-Cal LFC 80 Description
The LR-Cal LFC 80 is a torque bench for static measurements, composed of a digital indicator and a strain gauge torque, extremely rugged and compact with a precision better than 0.20%.
It is ideal for the calibration and control of torque wrenches, screwdrivers, direct reading and snap.
The indicator is powered by a Li-Ion chargeable battery with an autonomy of 80 hours, with the AUTO POWER OFF function, which occurs when there are not changes in measurement for a programmable period of time.
It allows in static mode a very high resolution and in PEAK mode an acquisition frequency of 4800 measurements per second.
The instrument and PEAK functions are working in clockwise direction as well as in counter-clockwise direction.
The display of the LR-Cal LFC 80 can be rotated by 90° to be able to work both, horizontally and vertically (using the optional 90° bracket).
The device is equipped with an USB 2.0 interface with a transmission rate of 4800 values per second in PEAK mode. A programmable "First PEAK" function makes it easy to avoid mistakes during calibration of torque wrenches.
For gradual and continuous reproducable movements of torque wrenches for calibration as per ISO 6789-1 and ISO 6789-2 we recommend the mechanical support code LR-Cal LFC-ATCplus:
Specification
LR-Cal LFC 80 available torque ranges
| Order-Code LFC80-8050 | 0...0.5 Nm | Order-Code LFC80-0100 | 0...100 Nm | |
| Order-Code LFC80-0002 | 0...2.5 Nm | Order-Code LFC80-0250 | 0...250 Nm | |
| Order-Code LFC80-0005 | 0...5 Nm | Order-Code LFC80-0500 | 0...500 Nm | |
| Order-Code LFC80-0010 | 0...10 Nm | Order-Code LFC80-1000 | 0...1000 Nm | |
| Order-Code LFC80-0025 | 0...25 Nm | Order-Code LFC80-2000 | 0...2000 Nm | |
| Order-Code LFC80-0050 | 0...50 Nm | |||
Instruments with ranges 0...0.5 Nm and 0...2.5 Nm are supplied incl. a factory certificate of calibration for clockwise direction.
All other ranges are supplied incl. ACCREDIA (DAkkS) certificate of calibration for clockwise direction.
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: | 4800 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 | 4800 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) |
| 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
| Order-Code | Description | Picture |
| LFC80-DLOG | Data Logging functions. Can operate in two modes: • Automatic: cyclic logging (programmable 1 s to 10 h), in normal mode • Manual: Logging on demand (key press). Capacity: 60,000 values. Integrated real time clock. Logged values can be shon on display of the instrument or transmitted via USB to PC/laptop. Communication protocol is included in manual. |
|
| LFC80-ADAPTER-SET | Set of adapters to calibrate torque wrenches 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 |
 |
| LFC80-RS232 | If distance between PC/Laptop and LR-Cal LFC 80 is larger than 5 meters, the optional RS232 interface must be used (here max. cable length 15 m). RS232C, 19200, 9600 or 4800 baud, transmission on software command. Connection DP9 female on back side of the housing. RS232 cable order-code LFC-RS232-KAB recommended. |
|
| LFC-RS232-USB | USB-/RS232 converter for PC/laptop | |
| LFC-HALTER | 90° bracket for vertical mounting |  |
| LFC80-KOFFER | Transit case with custom foams |  |
| LFC80-L-AZERT | Available for all ranges ≥ 5 Nm: ACCREDIA (DAkkS) certificate for direction counter-clockwise. (Such certificate for direction clockwise is included in scope of standard delivery.) |
|
| LFC-ATC-PLUS-PLATTE | When using the LR-Cal LFC-ATCplus fixture with several LR-Cal LFC 80 instruments (in order to have several measuring ranges available), in order to simplify the change of the LR-Cal LFC 80 reference instruments, we recommend for each additional measuring range (i.e. each additional LR-Cal LFC 80 instrument) an additional base plate with part no. LFC-ATC-PLUS-PLATTE. |  |
LFC-ATCplus support tool
Mechanical support LR-Cal LFC-ATCplus
Code LFC-ATC-1000-PLUS
for ranges to 1000 Nm, incl. 1 base plate for 1 LR-Cal LFC 80
Code LFC-ATC-2000-PLUS
for ranges to 2000 Nm, incl. 1 base plate for 1 LR-Cal LFC 80
The main advantages of using the optional LR-Cal LFC-ATCplus are:
- Calibration system compliant with ISO 6789-1 and ISO 6789-2:2017.
- Extreme ease of use.
- Reduction of calibration times.
- Minimum physical effort of the operator.
- Increased repeatability of the torque wrench.
- Gradual generation of the torque in compliance with the standard.
- Constant torque maintenance by reduction gear.
- Adjustable reaction system to reduce unwanted displacements and lateral forces.
- During calibration the reaction system keeps the torque application point constant.
- Rotation of the unit under test guarantees the application of the torque at an angle of 90° with respect to the torque wrench.
The mechanical support LR-Cal LFC-ATCplus comes with a double linear guide for the calibration and control of release or direct reading keys which allows the application of the load in a gradual and continuous way, by respecting the reference norms ISO 6789-1 and ISO 6789-2:2017.
If the mechanical support LR-Cal LFC-ATCplus shall be used with further LR-Cal LFC 80 instruments, you can increase the calibration range of your equipment.For each additional LR-Cal LFC 80 we recommend an additional base plate order-code LFC-ATC-PLUS-PLATTE.
Example: to cover a range of 1 to 1000 Nm in class 1, you need three LR-Cal LFC 80 instruments, to be mounted into the
LR-Cal LFC-ATC mechanical support:
1 x code LFC80-0010 = range 0...10 Nm
1 x code LFC80-0100 = range 0...100 Nm
1 x code LFC80-1000 = range 0...1000 Nm
2 x code LFC-ATC-PLUS-PLATTE = two additional base plates
1 x code LFC-ATC-1000-PLUS = mechanical support incl. one base plate
