Dosing Pumps
From Ghl
These great dosing pump units are expandable are up to 4 pumps within the same unit. They come complete with their own power supply and connection cable for connection to the GHL Profilux PlusII controller. Each pump can be controlled manually via the buttons on the front of the unit.
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Connection
Plug the jack of the AC/DC adapter into the connector of the fan power supply (polarity: Inside +, outside -) and connect the adapter to the mains. The control line has to be plugged with one end into one of the two western sockets; the other end has to be plugged into a ProfiLux-output for switchable socket outlets (e.g. S1-S4 or S5-S8). It is possible to operate the dosing pump unit in a bus-wiring (with further dosing pump units or digital powerbars).
Operation
The dosing pump unit behaves in principle like a powerbar which is connected to the ProfiLux. It can be connected to a conventional or digital powerbar output, it recognizes the output type automatically.
- Connection to a conventional powerbar output
- On S1-S4 (NOT set to digital): The pumps correspond to sockets 1 to 4
- On S5-S8: The pumps correspond to sockets 5 to 8
- On S9-S12 and S13-S16: accordingly
- Connection to a digital powerbar output
- On S1-S4 (set to digital): The pumps correspond to sockets 1 to 4 ex works. This assignment can be changed to allow
- the simultaneous operation of several dosing pump units and/or digital powerbars. See the topic Digital Powerbars –
- Set Numbering in the ProfiLux manual.
The dosing rate (amount) is determined by the switch-on duration. One dosing pump pumps app. 60ml in one minute. The programming of the dosing process can be achieved in several ways. ProfiLux offers dosing pump-, timer clock- or controllingfunctions, see ProfiLux manual.
Important hint: While programming it must be assured that the pumps run for maximum 15 minutes continuously, the subsequent pause must be at least as long as the previous duty cycle!
The dosing pump unit has 4 buttons to operate the pumps manually. This feature is useful to remove air for example. Several LEDs indicate the operation state: Green – device is ready; yellow – device recognizes communication with ProfiLux (only when connected to a digital powerbar output, otherwise it is off); red – activity of the pumps.
1000ml is the maximum ->1000ml / 60ml/min = 16.6minutes. A pump should not run more than about 15 minutes in one cycle. After running 15 minutes the pump should have a pause of at least 15 minutes, this is better for the lifetime (otherwise overheating possible).
Maximum you can put in per day: 24 x 1000ml. Or use 2 pumps: 24 x 2000ml.
Placement
The pumps are self-priming and always should be located above the container with the liquid which has to be dosed. This avoids an emptying of the container in the case of a leakage. The tube on the intake side should be short. To avoid a backflow the tube must not hang in the aquarium water. The pump heads can be turned 180°. Press both lockings at the same time and pull the pump off. Turn pump around and put it again carefully onto the motor shaft - don’t use force! Check that lockings have snapped in. Upgrade/Replacement In the case your dosing pump unit has less than 4 pumps additional pumps can be built in, they are available separately. A subsequent mounting (or replacement of a defective pump) should be done like this:
- Disconnect device from mains
- Open hosing (similar to the opening of the ProfiLux, please refer to the ProfiLux manual)
- Push carefully the dummy cover out of the front panel and remove glue residues (respective pull the old pump off –
push both lockings – and remove the motor)
- Insert new motor and mount it with provided screws – Caution: Don’t overwind the screws!
- Connect the motor cable to the appropriate plug inside the device (is labeled with Pump1 to Pump4)
- Close housing
- Press pump head carefully onto the motor shaft, the shaft should slide smoothly into the coils – don’t use force! Make
sure lockings snapped in safely.
Maintenance
The pumps don’t need much maintenance. It is recommended to clean the inside of the pumps sometimes from dust or other contamination. The pump must never be lubricated in any way!
