User manual

MODEL
9830-OWS
DOCUMENT TYPE
USER MANUAL
DOCUMENT FILE NAME REV.
9830OWSUM14.DOC 1.4
CREATE DATE
04/08/2003
REV. DATE
12/22/2009 10:07 AM
PRINT DATE
12/22/2009 10:07:00 AM
HARDWARE REV.
1.0
SOFTWARE REV.
9820_06 and higher
Page 3 of 12
1.0 INSTRUMENT OVERVIEW
1.1 FEATURES
 Push-button calibration
 RF Technology
 Double pole Double Throw (DPDT) 5A relay contacts
 0 – 20 second time delay
 Adjustable sensitivity
 High or Low relay action
 No moving parts
 For use with any Arjay Level Probes
1.2 DESCRIPTION
The ARJAY 9830-ows oil level alarm is specifically designed for use in Oil/Water Separators and in
Sumps. The unit senses the change in dielectric of water to oil using a RF capacitance measurement
technique together with microcontroller technology for high resolution measurements. The ARJAY
sensing probe is inserted into the vessel and a signal is sent to the remote controller. The ARJAY oil
level alarm will activate a relay contact when the predetermined level of oil is reached. There are two
main applications for the 9830-OWS.
The Oil/Water Separator must be of the type that is permanently filled with water. The water is
gradually displaced from the vessel as the oil is introduced. The active sensing portion of probe is
mounted below the oil pump suction and when the interface of oil reaches this active portion the
9830 alarms indicating the need to pump out the oil.
The Sumps normally have a pump with the suction on the bottom. The liquid level of the Sump is
maintained above the active portion of the probe using a separate level device (e.g. Float). The 9830-
OWS is used to sense an interface of oil before it is pump out of the Sump to the sewer. The 9830-
OWS will also alarm if there is not sufficient liquid within the sump thus acting as a dry pump monitor.