ACR-300 Setup Instructions
The ACR-300 board is designed to operate in the same way as the ACR 3 APEX board from GEA®, but provides some additional features. One unique feature of our ACR-300 is that it has a detachable keypad which can be purchased separately. Use the following instructions to install the ACR-300 to a preexisting milking stall. If any changes need to be made to the milking parameters, refer to the GEA® instruction manual 7053-9001-019 for the ACR 3 APEX or the Stats II book pages 25-26. Also the minimum bridging time can be increased.
1. Install Terminal
Press the terminal block plug onto the pin header.
Attach the two supplied wires to the terminal block.
Attach all the other terminal blocks to their appropriate connector.
2. Attach wires
3. Set the dip switches
Set the DIP switches to match the board being replaced.
Normally, the electrode value should only be adjusted using DIP switches 7 and 8 of switch bank 1. (See Stats II book pages 25-26)
The default setting is 200 grams per minute.
A higher number results in a wetter milking.
4. Milk flow monitoring
If installing in the compact DeMax CT box, use the provided shorter 6-pin terminal to attach to J6. The original terminal is too tall and will not fit in the box.
DeMax CT Box
Other settings
Resistance:
If the resistance must be changed, use the following procedure (Not normally needed):
1. Using a test potentiometer, set to the desired resistance, attach its leads between the Milk Flow pins (J9 terminal, pins 3 and 4). Suggested values based upon GEA® Instruction Manual 7053-9001-019 (or STATS II book page 26) are:
VisoFlow: 460Ω (Default)
Legacy: 220Ω
2. Disable Power
3. While holding the “Start” button apply power then release the start key.
4. If all three LED’s are lit, the value is already set and no calibration is needed.
5. If the value is not set, using a small flat screwdriver, adjust the potentiometer RV4 until all three LEDs are lit.
6. Pressing the stop key or cycling the power off and on will release the board from the calibration mode.
7. Calibration procedure completed.
If the claw is coming off before milk is sensed, the bridging time (initial delay) can be increased beyond factory maximum settings (i.e. settings with the DIP switch). For cows it can be increased by 30 seconds, for goats 10 seconds. Please note that this feature is exclusive to the ACR-300 and is not available on the GEA® ACR-3. (Software version 1.005 and newer) To set this feature:
Extended Bridging Time
1. Disable power
2. While holding “RS” and “C” buttons down, enable power. Release the “RS” and “C” Keys
3. Press and release the “Start” key to toggle between extended time or normal time.
Extended time: Yellow LED will flash 1 time/second
Normal time: Red LED will flash 1 time/second (Default)
4. Procedure is complete. Power-Cycle the device or press the “C” key to exit the calibration mode.