BERNT LORENTZ GmbH
Siebenstücken 24, 24558 Henstedt-Ulzburg, Germany,
Tel (+49) 0 4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
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Guide for troubleshooting for PS2 pump controller
6.8. How to check analog sensors
The following guide will evaluate whether a wrong value is generated by the sensor or by the
controller. For this test a proper 15 V/24 V power supply is needed. Secure that the PS2
controller supplies the power properly by performing the following steps:
• Configure your multimeter
o Choose voltage DC –
measurement
o Insert the test prods into its
provided sockets (black to COM
& red to V DC)
• Remove the protection cap, in order to
get a proper contact to the terminal
clamps
• Remove all cables which are connected
to the analog terminal clamps
• Depending on which analog input needs
to be checked, measure the voltage on
the terminal 7/8 or 9/10. Touch with the
red measuring tip (+) the terminal clamp
+15 V/24 V (T7 or T9) on the Power-
board as shown in the picture
• Contact with the black measuring tip
(COM) the terminal clamp “signal” (T8 or
T10) on the Power-board as shown in
the picture
If voltage is present, please proceed with the following steps. If the voltage is not present you
need to replace the IO-Board probably. However, you can also follow the how-to article to check
the Power supplies inside the controller in chapter 6.4 on page 15.
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