Download Manual - Arjay Engineering

Model: 2852-IFA
User Manual
Rev: 2.2
Change is password protected and allows an operator to enter or change the configuration setup values indicated in the View. Changes may be required for the initial setup of relay setpoints,
delays, span etc. or to re-set the values to the factory default.
3.2.3 Data Entry
3.3
2852 Controller Calibration
Power up the 2852 Controller. The status LED should be green. The LCD will scroll to the
normal operating screen after a series of the following screens (each display for 2 sec.). It may
read Normal or Alarm until a calibration is performed.
Arjay
S XXXXXX
SW X.XXX
2800
PMC= EXT
HW X.X
NET ID: X
IFA
Normal
Normal Screen
3.3.1 Site Calibration
A factory pre-configuration and basic set-up has been defaulted into the 2852-IFA but a field
calibration is required after installation.
Allow one hour warmup before proceeding to calibration.
The unit can be set to alarm when a high dielectric liquid (High pF) changes to a low dielectric
liquid (Low pF), such as water to oil, or when a low dielectric liquid changes to a high dielectric
liquid such as oil to water.
Before calibration, determine if the probe is immersed in the high dielectric or the low dielectric
liquid during the calibration. Following are some examples of typical dielectrics.
Water 80
Glycol 37.0
Isopropyl Alcohol 18.3
Oil 2.2
Benzene 2.1
Gasoline 2.0
Diesel/Jet Fuel 1.7
Air 1.0
As per the Flow Chart, press and hold Menu key for 5 seconds to enter the main menu. The
display will read the first menu item Cal only. Press select key, enter password ¨2000¨.
The display will read HI pF to LOW pF. If the probe is presently in the high dielectric liquid (ie.
water) and is to alarm when it sees a lower dielectric liquid such as fuel, press <SELECT> to
accept this setting.
If the probe is presently in a low dielectric liquid such as fuel, and is to alarm when it sees a
higher dielectric liquid such as water, press > to toggle the display to read LOW pF to HI pF
Press Select to accept this setting.
A pF reading of the sensor will be displayed. Press select to acknowledge and then press
select to accept this calibration. To abort, press the <MENU> key.
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