6.6.1 Description of the parameters
F01 - Access Code:
It is required when intending to change the configuration parameters. Entering of the code is not
required if the intention is just visualizing the parameters adjusted.
It allows entering of the expected access codes:
[,123]
- Allows access for changing the table parameters
[,231]
- Allows the unit of pressure and temperature measurement to be set
F02 - Display indication mode:
Specify the display preference:
[,,,1]
- Pressure in the transducer P1
[,,,2]
- Pressure in the transducer P2
[,,,3]
- Pressure differential between P1 and P2
[,,,4]
- Depth/height of water level in an mwc
[,,,5]
- Depth/height of water level in relation to surface (in meters)
[,,,6]
- Sensor T1 temperature
[,,,7]
- Sensor T2 temperature
[,,,8]
- Temperature differential between T1 and T2
[,,,9]
- Saturation temperature related to the pressure transducer P1
[,,10]
- Saturation temperature related to the pressure transducer P2
[,,11]
- Superheating temperature
[,,12]
- Subcooling temperature
[,,13]
- Display alternately the P1 transducer pressure and the P2 Transducer pressure
[,,14]
- Display alternately the P1 transducer pressure and the T2 Sensor Temperature
If the measurement is not available (e.g. sensor is disabled), the message
[Eind]
will be displayed.
F03 - Delay when powering the instrument on (initial delay):
This is the time elapsed from initialization, during which the instrument just displays the
pressure/temperature without activating outputs or validating alarms. In multi-instrument installations,
spikes in demand can be prevented by assigning different values to this function and causing loads to be
triggered at different times.
This function can be disabled by adjusting it to the minimum value 0
[no,,]
.
F04 - 1st stage operation mode (OUT1):
[,,,0]
- Depressurization
[,,,1]
- Pressurization
[,,,2]
- Cooling
[,,,3]
- Heating
[,,,4]
- Floating Condensation Control
[,,,5]
- Control for semi-artesian wells and water tanks (pressure control with cyclical timer)
[,,,6]
- Filter control (differential pressure control)
Note:
In order for OUT1 to operate in cooling or heating modes, the T1 temperature sensor must be
enabled in the “digital input 1 operating mode
'’.
[F58]
F05 - Pressure Setpoint OUT1:
This is the reference value for pressure control.
F06 - Pressure control differential (Hysteresis) OUT1:
It is the pressure difference (hysteresis) between switching control output ON and OFF.
Example: To control the pressure in 150 PSI (setpoint) with differential of 20 PSI. Therefore, in the
depressurizing mode, the output will be switched off at 150 PSI and switched back on at 170 PSI (150 +
20).
In the pressurizing mode, the output will be switched off at 150 PSI and switched back on at 130 PSI (150
- 20).
F07 - Minimum pressure setpoint allowed for the end user OUT1:
Avoids regulation of excessively low setpoint pressures by mistake.
F08 - Maximum pressure setpoint allowed for the end user OUT1:
Avoids regulation of excessively high setpoint pressures by mistake.
F09 - Lower transducer pressure limit P1 (pressure at 4mA):
Pressure applied to the pressure transducer when a 4 mA current in PSI or Bar is displayed in its output.
F10 - Upper transducer pressure limit P1 (pressure at 20mA):
Pressure applied to the pressure transducer when a 20 mA current in PSI or Bar is displayed in its
output.
Note:
When the 1st stage operational mode is set to control semi-artesian wells and water tanks, the
mwc unit is used and the instrument factors in the values for the
and
positions for the
[F24]
[F25]
to the pressure sensor limits.
F11 - Transducer pressure offset P1:
Allows to compensate reading differences of the pressure transducer.
F12 - Low pressure in transducer P1 alarm:
F13 - High pressure in transducer P1 alarm:
These are the minimum and maximum values for triggering the pressure alarm in the P1 transducer. If
these values are exceeded, the instrument displays low pressure
[Plo1]
or high pressure
[Phi1]
,
messages, but these events only show up in alarms after the time set in the “
[F57]
- Alarm validation
time
” setting.
F14 - OUT1 temperature setpoint:
It is the reference value for the temperature control.
F15 - Temperature control differential (Hysteresis) OUT1:
It is the temperature difference (hysteresis) between switching control output ON and OFF.
Example: One wants to control the temperature at 4.0°C (setpoint) with a differential of 1.0°C.
Consequently, the output will be turned off at 4.0°C and turned on again at 5.0°C (4.0 + 1.0) in cooling
mode, and the output will be turned off at 4.0°C and turned on again at 3°C (4.0 - 1.0) in heating mode.
F16 - Minimum temperature setpoint allowed for the end user OUT1:
Avoids regulation of excessively low setpoint temperatures by mistake.
F17 - Maximum temperature setpoint allowed for the end user OUT1:
Avoids regulation of excessively high setpoint temperatures by mistake.
F18 - T1 sensor temperature indication offset:
Allows compensating deviations in the sensor temperature reading.
F19 - Low temperature alarm sensor T1:
F20 - High temperature alarm sensor T1:
These are the minimum and maximum values for triggering the temperature alarm in the T1 transducer.
These alarms are validated only after the time specified in the “Alarm validation time” setting.
F21 - Time for setpoints validation (OUT1):
Upon reaching the setpoint the pressure or temperature must remain in this condition until this time has
elapsed and then switch off the control output (it avoids overshooting in the pump/compressor activation).
This function can be disabled by adjusting it to the minimum value 0
[no,,]
.
F22 - Minimum output off time (delay between activations) (OUT1):
It is the minimum time the output will remain off, i.e. the length of time between the last start up and the
next stop. The main purposes of this function are: minimize interferences in the mains of the facility
caused by the simultaneous activation of loads and avoid unnecessary activation of loads when there are
fast variations of pressure in the system.
This function can be disabled by adjusting it to the minimum value 0
[no,,]
.
F23 - Maximum output operating time OUT1 for maintenance (hourmeter):
Whenever the output is activated the apparatus will count its operating time. When the counted time is
equal or longer than the one set in this function, the display will show the message
signaling
[Man1]
,
that the compressor/pump must be serviced.
F24 - Lower pressure limit in mwc of transducer P1 (4 mA):
Water level in (mwc) when the pressure transducer displays a 4 mA current in its output.
F25 -Upper pressure limit in mwc of transducer P1 (20 mA):
Water level in (mwc) when the pressure transducer displays a 20 mA current in its output.
Note:
Use the conversion table above to properly choose the pressure transducer. Example: for a 200
PSI transducer, the maximum limit in this function is 140.6 mwc (200 PSI*0.703 = 140.6 mwc).
F26 - P1 transducer depth offset:
Allows to compensate water level reading differences of the pressure transducer.
F27 - Control of semi-artesian wells or water tanks:
Selects the control mode (semi-artesian wells or tanks) if the
1st stage operating mode
“
[F04]
-
(OUT1)
’’
function is set to control semi-artesian wells and water tanks.
[,,,0]
-
Semi-artesian wells control (depressurization with cyclical timer). This mode controls the
pump for withdrawing water from semi-artesian wells, indicating the water level coming from the P1
transducer reading.
[,,,1]
-
Water tank control (pressurization with cyclical timer). This mode controls the pump for
supplying water into the tanks, indicating the water level coming from the P1 transducer reading.
Installation examples:
Despressurization
Pressurization
Pressure [ PSI ]
Pressure [ PSI ]
170 PSI
150 PSI
150 PSI
130 PSI
Relay On
Relay On
Se Hysteresis
Setpoint
Setpoint
Setpoint - Hysteresis
Time [S]
Time [S]
Relay Off
Relay Off
Refrigeration
Heating
Temperature [ °C ]
Temperature [ °C ]
5°C
4°C
4°C
3°C
Relay On
Relay On
Se Hysteresis
Setpoint
Setpoint
Setpoint - Hysteresis
Time [S]
Time [S]
Relay Off
Relay Off
mwc x pressure conversion
1 mca
10,197 bar
0,703 PSI
1 mca
SURFACE
WATER LEVEL
LEVEL READ BY THE
TRANSDUCER
SETPOINT
HYSTERESIS
CRITICAL LEVEL
TRANSDUCER
INSTALLATION LEVEL
WATER LEVEL
DRAWDOWN
LEVEL READ BY THE
TRANSDUCER
TRANSDUCER
INSTALLATION LEVEL
HYSTERESIS: REACTIVATE THE PUMP
HYSTERESIS: REACTIVATE THE PUMP
SETPOINT: PUMP SHUTDOWN
SETPOINT: PUMP SHUTDOWN
CRITICAL LEVEL
SETPOINT
HYSTERESIS
PUMPING LEVEL DEPTH
STATIC WATER LEVEL
PUMP
SEMI-ARTESIAN WELL
WATER TANK
