User's Manual Part 2
30
30
The GS820 System
The GS820 System
2.13
2.13
Rope payout
Rope payout
Typically the rope payout sensor is factory installed
on the line riding tensiometer load sensor (figure
above). Alternatively the rope payout sensor may
be installed on an appropriate sheave (figure
below). Power supply must be provided to the rope
payout sensor. A GS820 display can then be
programmed to communicate with the sensor and
to indicate rope payout (length) and rope speed.
Zero the rope payout using the Tare menu before
calibration.
2.13a Rope Payout Calibration
Procedure № 1: Mechanical
Set-Up
1. Hoist up to reel in the wire rope fully.
2. Install the rope payout system.
3. Zero the rope payout length in the Tare menu
4. Hoist down to pay out a known length of wire
rope (for example: 20 feet).
5. Verify the rope payout indicated matches the
actual length of wire rope paid out. If not then
follow Rope Payout Calibration Procedure № 2.
2.13b Rope Payout Calibration
Procedure № 2: Correct with
the GS820
If rope payout indicated does not match actual rope
payout, and if it is not possible to easily correct by
following Rope Payout Calibration Procedure № 1,
then follow this procedure. This procedure requires
hoisting up to fully reel in the wire rope, and then
hoisting down to pay out a known length of wire
rope. For accurate calibration the “known length”
paid out must be accurately measured.
1. Go to menu 4) I
NSTALLATION and select 4B)
SENSOR CALIBRATION.
2. Enter the user password and press Enter.
3. Select 4B1) A
UTOMATIC CALIBRATION WIZARD.
4. Use Up and Down to select the rope payout
sensor, and then press Enter to confirm
communication with the sensor is established.
5. Note the units that will be used during the
calibration wizard, and then press Enter.
6. Hoist up (pay in) the wire rope, use Up and
Down to adjust the actual wire rope payout
length and then press Enter.
7. Hoist down (payout) the wire rope, use Up and
Down to adjust the actual wire rope payout
length and then press Enter.
Rope payout
sensor
Figure: Rope payout on a line riding tensiometer
Figure: Alternative installation of a rope payout
Figure: Rope payout calibration, adjust the actual rope length