ETH-messtechnik gmbh
D-74415 Gschwend P.O. 16
Nr.: 162e
Operating Instructions GMV2-K
revised: 09.05.2019
Rev.: 0
Subject to change without prior notice
24
All available parameters are detailed below:
•
Transducer (type):
The input changeover is not available with all software versions!
Changeover between "active", "Cur2Ran", "passive"" and and "digital". Different sockets can be selected as well.
•
active-/passive- Sign./Ua:
Adjusting the measurement input to the transducer nominal signal (Ua).
-
active:
±
1.250V to
±
10V or selection of standard values (
±
5V,
±
10V)
-
passive:
±
0.5mV/V to
±
4mV/V or selection of standard values (
±
1mV/V,
±
2mV/V,
±
4mV/V)
•
Overload:
This is
the
percentage by which the measuring range of the GMV2-K is greater than the nominal transducer signal.
This allows torques that are greater then the full scale value of the transducer to be measured. It can be used with
pulse-type screwdrivers with the correction factor. The standard value is 7%. The adjustable range is 0% to 100%
Caution
-
If the mechanical overload capability of the torque transducer is exceeded for even a short period (see data
sheet), this will immediately destroy the transducer!
- The specified accuracy of transducer is not guaranteed at more than 50% overload
- The GMV2-K resolution worsens accordingly
•
Transducer full scale value:
Nominal transducer torque.
Setting range: 1.000 Ncm to 200 kNm; 1.000 inlb to 1999 inlb / ftlb.
•
Operating mode:
- Track: Continuous display of current torque, angle of rotation or speed and power.
- Peak: The highest value is stored. See Sec. 10. for screwings.
- Torque wrench:
For clockwise rotation only.
The peak value before yielding point is reached is stored.
See also sec. 7.7 page 19
- Pulse-type screwdriver: Specially designed for pulse-type and impact screwdrivers (peak measuring with correction
factor).
•
Filter
:
Tracking measurements: “Average value for n s”.
0 s: Filter disabled, otherwise average value over a period of n seconds.
Setting range: 0.1 s to 10.0 s.
•
Correction factor:
Only available in “Pulse-type screwdriver
”
mode. It is the ratio of the indicated value to the measured value in
percent. Setting range: 50% to 150%. The default value 100% disables the correction factor.
The measured torque for pulse-type screwdrivers deviates significantly from the torque applied to the screw. The
indicated value can be adapted with the correction factor. It is calculated as follows:
Correction factor = 100% * (measured torque in the screw / uncorrected measured value)
•
Direction:
- Peak measuring only: clockwise or counter-clockwise rotation.
•
Torque (processing):
choose between
- "Display": display only,
- "Monitoring": with limits (OK/NOK assessment), without shut off,
- "Shut off": same as monitoring, with shut off of power-operated screwdriver by external power circuitry, however
only available for peak measurement!
•
Torque Limit max:
If the measured torque is greater than this limit value, NOK assessment is carried out. Allowed
setting range is 5% to 100% of transducer full scale value including overload range.
Counter-clockwise rotation: unsigned number entry! A correction factor alters the valid setting range!
Summary of Contents for GMV2-K
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