LINK Systems OmniLink 5000 - Manual (Page 75)

April 17, 2000 Man ual Revisio n 1.0
8.7
i) Access the T/M Configuration menu of the OmniLink 5000 Tonnage Monitor Module, select
Calibration and Channel Description (refer to Section 5.3). The T/M Calibrate menu will appear.
Press the STATIC CAL softkey to enter the Static Calibration mode. The top of the screen will read
“Tonnage Monitor Static Calibration Mode.” With the RUN/PROG keyed selector switch in the
PROG position enter a calibration number of 400 into each channel.
j) Verify that the channel and total tonnage displays read between ±1% of rated tonnage of the
machine. If not press the DYNAMIC CAL. softkey and then the STATIC CAL. softkey to
command a re-zero.
Do NOT exit the STATIC-CAL mode.
k) Use the hydraulic jack(s) equipped with suitable pressure gauge(s) to exert the tonnage at which the
machine is to be calibrated, preferably rated tonnage of the machine but a tonnage of at least 50% of
rated machine tonnage.
When more than one jack is used for calibration, each jack pressure should be adjusted to exert equal
forces (±1%) on the ram or slide of the machine.
l) For a two channel OmniLink 5000 Tonnage Monitor Module:
Turn the RUN/PROG keyed selector switch to the PROG position and adjust the Cal.#s. Turn
the RUN/PROG keyed selector to RUN. The channel tonnage for each channel should read
within ±1% of one-half (1/2) of the sum of the tonnages exerted by the jack(s). If the
calibrations numbers require re-adjustment, return the RUN/PROG keyed selector to the PROG
position, and adjust the Cal. #’s. The RUN/PROG keyed selector must switch to the RUN mode
between each entry, in order for a new tonnage reading to be calculated. Repeat this procedure
until both channels read within ±1% of one-half (1/2) of the sum of the tonnages exerted by the
jack(s).
For a four channel OmniLink 5000 Tonnage Monitor Module:
Turn the RUN/PROG keyed selector switch to the PROG position and adjust the Cal.#s. Turn
the RUN/PROG keyed selector to RUN. The channel tonnage for each channel should read
within ±1% of one-fourth (1/4) of the sum of the tonnages exerted by the jack(s). If the
calibrations numbers require re-adjustment, return the RUN/PROG keyed selector to the PROG
position, and adjust the Cal. #’s. The RUN/PROG keyed selector must switch to the RUN mode
between each entry, in order for a new tonnage reading to be calculated. Repeat this procedure
until all four channels read within ±1% of one-fourth (1/4) of the sum of the tonnages exerted by
the jack(s).
m) Release the pressure of the jack(s) and remove the jack(s) and associated stack materials from the
machine.
n) Retain the calibration numbers so that periodic checks for calibration can be made. It is suggested
that a copy of these numbers be kept inside the control enclosure and that a second copy be kept in