Final Adjustments
3-30 Manual # 42-02-2P24
• Press the menu button twice. The control unit will begin to count down. Exit the
cartop before the countdown finishes. When the known weight has been learned,
will be displayed. You can press the menu button until the weight is shown
on the control unit display. The weight displayed should be the value of the weights in
the car, or the scaled value.
Complete steps 7, 8, and 9 only if the load weigher analog output will be used (references the
analog output to 10Vdc at this weight). Go to Relay Setup for relay output weighing.
7. Enter the overload weight:
• Press the menu button until is displayed.
• Enter the value of the overload weight (or the scaled value if you scaled full load weight
- use the same scaling factor). Press the button to select a digit (blinks when
selected) and press the button to set the value.
• Press the menu button three times to save your entries.
8. With the full load of weights in the car, using a digital multimeter, measure the voltage
at terminals 0-10v and Com on the control unit. It should be approximately 8 volts.
Note the exact value.
Relay Setup
1. For discrete relay closure weighers, the set points for relays AL C, AL S, and AL A must
be programmed as shown in the job prints, typically -
• Light Load - 25% or less of full load, relay ON/normally closed
• Dispatch Load - 60% of full load, relay OFF/normally open
• Heavy Load - 80% of full load, relay OFF/normally open
• Overload - 100% of full load, relay OFF/normally open
• Overload 2 - 125% of full load, relay OFF/normally open
2. Enter the trip point for relay AL C - (EMCO terminal #2 on the job prints).
• Press the menu button until is displayed.
• Enter the value of the desired trip point weight (or the value of the weight scaled by the
same percentage used in step 6). Press the button to select a digit (blinks when
selected) and press the button to set the value.
• Press the menu button once. The display indicates “On” which means normally
closed (contacts will open when weight exceeds set point). Press the button if you
want to change it to “Off”, normally open (contacts will close when weight exceeds set
point).
• Press the menu button twice to save the settings.