Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������4 1�1 Symbols used ������������������������������������������������������������������������������������������������4 2 Safety instructions �����������������������������������������������������������������������������������������������4 3 Items supplied������������������������������������������������������������������������������������������������������5 4 Functions and features ����������������������������������������������������������������������������������������7 4�1 Operation with single probe ���������������������������������������������������������������������������7 4�2 Operation with coaxial probe �������������������������������������������������������������������������7 4�3 Applications ���������������������������������������������������������������������������������������������������8 4�3�1 Restriction of the application area ��������������������������������������������������������8 5 Function ���������������������������������������������������������������������������������������������������������������9 5�1 Measuring principle ���������������������������������������������������������������������������������������9 5�2 Features of the unit ��������������������������������������������������������������������������������������10...
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6�4�4 Installation in plastic tanks ������������������������������������������������������������������23 6�5 Installation of the unit with coaxial probe in the tank �����������������������������������23 6�6 Alignment of the sensor housing �����������������������������������������������������������������24 7 Electrical connection ������������������������������������������������������������������������������������������24 8 Operating and display elements ������������������������������������������������������������������������25 9 Menu ������������������������������������������������������������������������������������������������������������������26 9�1 Menu structure ���������������������������������������������������������������������������������������������26 9�2 Explanation of the menu ������������������������������������������������������������������������������27 10 Parameter setting ��������������������������������������������������������������������������������������������28 10�1 Parameter setting in general ���������������������������������������������������������������������28...
13 Servicing ����������������������������������������������������������������������������������������������������������37 14 Applications������������������������������������������������������������������������������������������������������38 14�1 Minimum level monitoring with early warning and alarm ���������������������������38 14�2 Pumping station / empty the tank with overflow protection ������������������������39 14�3 Storage tank ����������������������������������������������������������������������������������������������40 15 Factory setting �������������������������������������������������������������������������������������������������41 1 Preliminary note 1.1 Symbols used ►...
According to the current state of science the operation of the unit can be classified to be harmless to human health� 3 Items supplied • Level sensor AF004 • Operating instructions In addition, the following is necessary for installation and operation: •...
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Flange plates Size / process connection Order number 73 - 90 / G¾ AA941 65 - 80 / G¾ AA942 Only use rods and coaxial pipes from autosen gmbh� The optimum function is not ensured when using components from other manufacturers�...
4 Functions and features The unit continuously detects the level in tanks and generates output signals according to the parameter settings� 2 switching outputs are available� They can be set separately� 4.1 Operation with single probe The single probe is made up of one individual rod� Operation with single probe is suited for the detection of aqueous media, in particular of heavily soiled aqueous media�...
4.3 Applications • Water, water-based media • Oils, oil-based media (only for operation with coaxial probe) Application examples: • Detection of coolant emulsion in a machine tool� • Detection of cleaning liquid in a parts cleaning system� • Monitoring of hydraulic oil in a hydraulic power unit (only for operation with coaxial probe)�...
5 Function 5.1 Measuring principle Fig. 5-1 Fig. 5-2 The unit operates to the principle of guided wave radar� It measures the level using electromagnetic pulses in the nanosecond range� The pulses are transmitted by the sensor head and guided along the rod (fig� 5-1)� When they hit the medium to be detected they are reflected and guided back to the sensor (fig�...
5.2 Features of the unit 5.2.1 Easy set-up • When the unit is supplied with operating voltage for the first time, the probe length, the medium to be detected and the type of probe used must be entered� Then the unit is ready for operation (→ 10.2). •...
• Window function / normally open (fig� 5-4): [OUx] = [Fno]� • Window function / normally closed (fig� 5-4): [OUx] = [Fnc]� The width of the window can be set by means of the difference between FHx and FLx� FHx = upper value, FLx = lower value� Fig.
You will find the IODDs necessary for the configuration of the IO-Link unit and detailed information about process data structure, diagnostic information and parameter addresses at www�autosen�com� Parameter setting tools You will find all necessary information about the required IO-Link hardware and...
6 Installation 6.1 Installation location / environment • Vertical installation from the top is preferred� 6.1.1 Unit with single probe • For a safe function, the unit requires a launching plate (→ 6.4). • For optimum operation the unit is to be installed as near as possible to the tank wall�...
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measurements: adhere to increased minimum distances depending on type and intensity of the soiling� • For installation in pipes: - The inside pipe diameter (d) must be at least 100 mm (fig� 6-1)� - Only install the unit in metal pipes� •...
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Fig. 6-3 Fig. 6-4 50mm To avoid incorrect measurements in case of heavy foam formation and turbulence: ► if possible, install the sensor in a steady area� Example how to create a steady area: - Use of a coaxial probe (only for clean, low-viscosity media) - Installation in bypass or still pipe (see fig�...
Fig.: 6-5 6.1.2 Unit with coaxial probe • No minimum distances to the tank wall and the baffles (B) are required� • Minimum distance to the bottom of the tank: 10 mm� • The vent hole (A) must not be covered by mounting elements or similar�...
6.2.1 Installation of the rod Fixing of the rod: ► Screw the rod to the unit and tighten it� Recommended tightening torque: 4 Nm� For ease of installation and removal the rod connection can be rotated without restriction� Even if rotated several times there is no risk of damage to the unit�...
6.2.2 Installation of the coaxial pipe This subchapter is only relevant if the unit is to be operated with a coaxial probe� The coaxial pipe and the rod must be of the same end length� The coaxial pipe can be shortened (→ 6.3.2). ►...
6.3 Shortening of the probe 6.3.1 How to shorten the rod and determine its length L The rod can be shortened to adapt the probe to different tank heights� Ensure that the probe length is never below the minimum permissible probe length of 10 cm (L )! The unit does not support probe lengths below 10 cm�...
Fig.: 6-6 ► Remove fastening bracket and centring piece (A, B)� ► Shorten the coaxial pipe to the requested length: L = L + 9 mm� ► After shortening, at least one hole (C) for insertion of the fixing bracket has to be left�...
6.4.1 Installation in closed metal tanks (without flange plate) Fig.: 6-7 Fig.: 6-8 Fig.: 6-9 ► The lower edge of the process connection should be flush with the installation environment (fig� 6-7)� ► Avoid non-flush installation (fig� 6-8)� ► Use seals or washers (D in fig� 6-9) to reach the required height� ►...
► Install the flange plate with the flat surface showing to the tank and fix it with appropriate screws� A seal (B in fig� 6-11) can be inserted between flange plate and tank� Some flange plates are supplied with a seal� ►...
6.4.4 Installation in plastic tanks 150 mm To enable sufficient transfer of the measured signal, note in case of installation in plastic tanks or metal tanks with plastic lid: ► A drill hole with a minimum diameter of 150 mm must be applied to the plastic lid�...
Voltage supply according to EN 50178, SELV, PELV� ► Disconnect power� ► Connect the unit as follows: OUT2 OUT1/IO-Link Connection Core colours for autosen sockets brown blue 2 (OUT2) pnp switching signal white • pnp switching signal...
8 Operating and display elements 3 4 5 6 Mode/Enter 1 to 8: Indicator LEDs - LED 1: green = indication of the level in cm� - LED 2: green = indication of the level in inch� - LED 3: green = indication of the level in % of the final value of the measuring range� - LED 4 - LED 6: not used�...
9.2 Explanation of the menu SP1/rP1 Upper / lower limit value for the level at which OUT1 switches� FH1/FL1 Upper / lower limit for the acceptable range (monitored by OUT1)� SP2/rP2 Upper / lower limit value for the level at which OUT2 switches� FH2/FL2 Upper / lower limit for the acceptable range (monitored by OUT2)�...
10 Parameter setting During parameter setting the unit remains in the operating mode internally� It continues to monitor with the existing parameters until the parameter setting has been completed� 10.1 Parameter setting in general 3 steps must be taken for each parameter setting: Select parameter ►...
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• Change from menu level 1 to menu level 2: ► Press [Mode/Enter] until [EF] is displayed. Mode/Enter Set ► Briefly press [Set]� > The first parameter of the submenu is Mode/Enter Set displayed (here: [res])� • Locking / unlocking The unit can be locked electronically to prevent unintentional settings: ►...
10.2 Basic settings (unit on delivery) On delivery of the unit, you must first enter the basic settings� The complete parameter setting menu cannot be accessed before this� Malfunctions may occur if wrong basic settings are entered� 10.2.1 Entering the probe length ►...
10.3 Configuration of the display ► Select [Uni] and set the unit of measurement: [cm], [inch]� Factory setting: cm� ► Select [SELd] and set type of indication: - [L] = The level is indicated in cm or inch� - [L%] = The level is indicated in percent of the final value of the measuring range�...
► Select [rP1] / [rP2] and set the value at which the output resets� rPx is always smaller than SPx� The unit only accepts values which are lower than the value for SPx� 10.5.3 Set the switching limits (window function) ►...
10.7 Changing basic settings Required after changes to the probe or to the application area� 10.7.1 Re-enter the probe length ► Change to menu level 2 ► Select [LEnG] and set probe length L� Note the set unit of measurement (cm or inch)�...
11 Operation After power on, the unit is in the Run mode (= normal operating mode)� It carries out its measurement and evaluation functions and generates output signals according to the set parameters� 11.1 Operating indicators Numerical value + LED 1 Current level in cm�...
11.4 Error indications Possible cause Recommended measures [E�000] Fault in the electronics� Replace the unit� Probe detached from the unit; Check whether the probe is still [E�031] possibly incorrect setting of the attached to the unit� probe length� Check the parameter [LEnG]� Measurement disturbed by •...
OFF for FOU1 = OFF; OFF for FOU2 = OFF; Fault (E�0xx) ON for FOU1 = on ON for FOU2 = on 12 Technical data and scale drawing Technical data and scale drawing at www�autosen�com� 12.1 Setting ranges [LEnG] inch Setting range 10���160 4�0���63...
13 Servicing ► Keep the process connection free of deposits and foreign bodies� ► In case of heavy soiling: clean the process connection and the probe at regular intervals� In case of longer operation separation layers can form in the medium (e�g� oil on water)�...
14.2 Pumping station / empty the tank with overflow protection Switching output 1: control to empty tank upper value exceeded → submersible pump ON lower value reached → submersible pump OFF hysteresis function, normally open (Hno) Switching output 2: overflow protection maximum value exceeded →...
14.3 Storage tank Monitoring of the acceptable range (alarm) and level control Switching output 1: refilling upper preset value reached → finish refilling below lower preset value → start refilling hysteresis function, normally closed (Hnc) Switching output 2: safety function min - max max.
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