Installation
1. Mount control box intelligently, away from steam or high humidity areas. Avoid areas where rapid temperature changes will occur. Condensation will occur in these areas. Avoid excessive vibration.
2. When installing conduit holes the circuit boards must be protected from damage. When drilling the enclosure, know what you are drilling into and keep metal chips off the P.C. boards.
3. It is recommended that all conduit be brought in from the sides or bottom of the box. The right side and bottom are recommended, as the terminal strips are located to the right and bottom of the circuit board. Conduit brought into the top greatly increases the possibility of water being introduced into the control box. (Water damage due to carelessness will void warranty)
4. Do not use the control box for a pull box for any outside wiring.
5. Observe all local electrical codes. If control box is non-metallic (fiberglass) observe grounding requirements for non-metallic enclosures.
6. Know the maximum load that you are going to switch through the relay. An excessive load will damage the circuit board. External power relays may be required.
7. All wires from the pulser, remote reset start switch and the emergency stop switch must be run in their own conduit. These wires should not be run with high voltage power lines. Shielded cable is recommended.
If questions should arise on any of these notes, please consult the factory for proper installation assistance
1. Mount unit in acceptable area. See section 3.2 of Special Installation-Notes and Precautions.
2. Install necessary conduit knock-outs. See section 3.2 of Special Installation-Notes and Precautions.
3. Bring power into control box and terminate to terminals 1, 2 and 3 of TS1.
4. Bring in pulse signal wires from flow meter or pulser located at pump. For standard contact closure type pulsers, see drawing EBU-3; for turbine meter preamps, see drawing EBU-4.
5. Bring control lines from valves as necessary (see drawings EBU-8 to EBU-13). Observe contact ratings.
6. Bring pump control lines in from pump starter (see drawing EBU-8). Observe contact ratings.
7. Install remote switch, if required. Be sure, if remote switch is used, to remove jumper between terminals 2 and 3 of TS3 (see drawing EBU-3).
8. Please feel free to contact the factory for wiring of special valves or pumps, or any other problems that may arise.
1. Before introducing power to the batch system, check to see that all connections are tight and made to the proper terminals. Turn main power on.
2. Push the power "On" switch and a red indicator will light, showing the power is on.
3. Select a test amount on the preset switches. Push the emergency stop "Stop" switch. Push the reset start switch. The amount selected on the preset will now be shown on the LED display. Push the emergency stop "Run" switch to run the batch. The red batching indicator will light, showing that the CR1 relay has been energized, thus opening the valve and starting the pump. As flow begins, the LED counter will count down from the set point to zero, at which time the batching indicator light will go off, the relay will be released, the pump will shut off, and the valve will close.
4. If the system is supplied with a scaler, all adjustments will be made in the control box (see scaler instructions); otherwise calibration will be made at the flow element. Set the EBU with a quantity to be run into a test tank that can be weighed or measured accurately. Run a batch and determine the error between the amount on the LED preset plus the amount of over-run, if any, and the amount in the test tank. Set new scaler setting. Run a second test. Amount on EBU preset plus the amount of over-run and amount in test tank should be the same. If not, set new scaler setting. If tests do not repeat, check plumbing, valving, and metering systems for design problems. If tests are correct and repeat, set the amount of over-run on the floating zero switches (S6, S7; see floating zero instructions, Section 3.6).
5. If two-stage shut-down is utilized, see prewarn instructions for proper switches to set. Setting should give the system time to slow flow rate down before final shut-off. This is done to prevent line shock. If line shock is still present, adjust valve to throttle further. If two-stage option is utilized, floating zero compensation will not be available.
6. The emergency stop switches are used to pause during a batching cycle. Pushing the emergency stop "Stop" switch will release the relays, thus shutting valve and turning off the pump as necessary. After the emergency condition is over, pushing the "Run" switch will start the batch from where it was stopped. If the operator determines that he has set an incorrect amount to be batched and has already pushed the reset start switch, he must push the emergency stop "Stop" switch. When the system stops, it will be necessary to note how much has already been batched and how much more is required, then push the power "Off" switch to erase the memory in the EBU. Push the power "On" switch and set the necessary amount on the preset to finish the batch. Push the reset start switch and the emergency stop "Run" switch to complete the batch. If an emergency stop is utilized while in prewarn (two-stage closure) the emergency stop switch must be left off for approximately 20 seconds, or the valve might not re-open.
7. The reset start switch is used to start a pre-selected batch. Once the batch has been started, the reset button and the preset switches are electronically locked out. This prevents erroneous or double batching.
