GHL ProfiLux 4 Programming Guide

ProfiLux 4 Programming Guide
EN 2017-02-06 48
pH
0.5
3.0
0.1
Temperature
0.5 °C
5.0 °C
0.1 °C
Redox
40 mV
400 mV
1 mV
Conductivity freshwater
50 µS
500 µS
1 µS
Conductivity saltwater
2.5 mS
25.0 mS
0.1 mS
Oxygen
2.0 %
20.0 %
0.1 %
Humidity
1.0 %
20.0 %
0.1 %
Air temperature
1.0 °C
15.0 °C
0.1 °C
Voltage
0.10 V
6.00 V
0.01 V
5.6 Nocturnal Change
With this setting, you can determine whether the value to be controlled is to be changed at
night.
By default, the night change is disabled. If you have activated the nocturnal change with Yes,
you can set how much the value is to be changed at night and set the start and end times.
Overview of the settings for the nocturnal change:
Example for the calculation of the lower and
upper temperature alarm limit
 Nominal value 26.0 °C
 Nocturnal change by -2 °C active
 Overall hysteresis 0.2 °C
 Maximum devitation 1.5 °C
 Cooling difference 2.0 °C
Thus resulting :
Lower limit = 26.0 °C – 2.0 °C – ½ * 0.2 °C – 1.5 °C = 22.4 °C
Upper limit = 26.0 °C + 5/6 * 0.2 °C + 1.5 °C + 2.0 °C = 27.7 °C (5/6 because of
the upper switching point of the cooling, see also Sensor settings ->Hysteresis)

GHL ProfiLux 4 Specifications

General

Model	ProfiLux 4
Category	Controller
Power Supply	12V DC
pH Ports	2
Redox Ports	1
Conductivity Ports	1
Level Ports	4
Digital Inputs	4
12V Outputs	4
Real-time clock	Yes, with battery backup
Digital Outputs	4
Expandable	Yes
Connectivity	USB, Wi-Fi, LAN
Display	Graphic LCD display
Expansion Slots	4
Processor	32-bit
Channels	16
Operating Temperature	0°C to 50°C