4.1 ON/OFF remote control
By interlinking the contacts no. 4 and 5 of the socket at the rear of the pump (see section 10.2), the pump will be blocked and the ON/OFF LED will be switched off.
The same effect will be obtained by applying a voltage of 3 to 12 V DC to the contact no. 5 (0 line must be connected to contact no. 3).
Note: Please contact us, if a reverse logic is needed for remote control of the LAMBDA laboratory peristaltic pump.
4.2 Analog remote control of pump
The LAMBDA Peristaltic pumps can be controlled over the whole speed range by an external signal (0 - 10 V DC, option 0-20 or 4-20 mA). The plus pole of the signal is connected to the contact No. 1, 0 line to the contact No. 3.
The indication on the display may become unstable when no external connection is made and indicates the high sensitivity of the electronics.
For safety reasons the voltage of the external signal must not exceed 48 V to earth!
Figure 4.2-1 For remote control, connect the 8-poles Pump remote control cable into the 'Remote' socket at the rear of the Peristaltic Pump.
Figure 4.2-2 Press the button REMOTE on the front panel. The corresponding LED diode will go on and the display will indicate the approximate voltage of the external signal.
4.3 Digital remote control of pump via PC
If the instrument has been equipped with the optional RS-232 or RS-485 interface (optional), it can be controlled digitally, e.g. from a PC by PNet peristaltic pump control software.
Figure 4.3-1 Disconnect the pump from the mains. While keeping the direction button ◄|► pressed, connect the pump to the mains again.
Figure 4.3-2 The message “A” and two numbers will appear on the display. This number from 00 to 99 is the current address of the pump.
Figure 4.3-3 To change the address press the buttons Λ Λ Λ under the display until the desired number is obtained.
Figure 4.3-4 To confirm the address and save it, press the ON/OFF button.