Benutzeranleitung / Produktwartung EB 8331-1 EN des Produzenten Samson
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Electric Actuator Type 3374 Mounting and Operating Instructions EB 8331-1 EN Ed i t io n Oct o ber 2007 Fig. 1 · Type 3374 Actuator mounted on a Type 3535 Three-way Valve.
Contents Page 1 Design and principle of operation . . . . . . . . . . . . . . . . . . . 5 1.1 Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Installation .
EB 8331-1 EN 3 Safety instructions General safety instructions 4 Assembly, start-up and operation of this device may only be performed by trained and experienced personnel familiar with the product.
4 EB 8331-1 EN Note: Actuators with a CE marking fulfill the requirements of the Directives 94/9/EC and 89/336/EEC. The Declaration of Conformity is available on request.
1 Design and principle of operation The Type 3374 Electric Actuator is used in industrial plants as well as in heating, venti - lation and air-conditioning systems. The linear actuator is suitable for form-fit at - tachment to various SAMSON valve series, depending on the version with or without fail-safe action.
1.2 Technical data 6 EB 8331-1 EN Design and principle of operation Actuator Type 3374 -10 -11 -15 -21 -26 -31 -36 Version with Yoke Ring nut Yoke Ring nut Yoke Ring nut Safety function Without Stem e.
EB 8331-1 EN 7 Design and principle of operation Digital positioner 1) Operating mode 1 Operating mode 2 Operating mode 3 Input variable 2) Range 4...20 mA, Ri = 0.05 k Ω 2...10 V, Ri = 10 k Ω 0...20 mA, Ri = 0.05 k Ω 0...10 V, Ri = 10 k Ω As per settings 3) Resolution 10 Bit Position feedback signal 4) 5) Range 4.
2 Installation 2.1 Mounting position Installation depends on the mounting posi - tion of the valve. However, do not install the actuator suspended downwards. Note! Manual override is only possible in actua - tors with fail-safe action when the power supply is connected (see section 4.
EB 8331-1 EN 9 Installation Fig. 2 · Attachment to the valve 1 2.1 3 4 5 6 x 1 2.3 7 3 4 8 9 10 5 1 2.2 7 3 10 4 5 Attachment to Series V 2001, Type 3260 DN 65 to 150 and Type 3214 DN 65 to 100 Attachment to Series 240 Attachment to Type 3214 DN 125 to 250 1 Actuator 2.
3 Electrical connections Upon installation of the electric ca - bles, you are required to observe the regulations concerning electrical power installations according to DIN VDE 0100 as well as the regulations of your local power supplier.
Caution! 4 Only connect to the main power network when the power is switched off. 4 Only use power interruption devices which ensure that the power cannot be switched on again unintentionally.
4 Operation and setting 4.1 Manual operation of the actuator To operate the manual override, place 4 mm hex wrench on the red actuator shaft located at the side of the housing. The hex wrench is delivered with the actuator. It is attached to the bottom of the housing.
EB 8331-1 EN 13 Operation and setting Fig. 5 · Performing settings 12 3 7 5 13 12.1 aa e 12 Nennhub 15 13.1 B Limit switch Stem retracts Metal tag Rated travel inscription Stem extends 1 Microswitch 2 Spindle upwards 3 Spindle downwards 5 Intermediate gear 7 Cam bracket 12 Gear potentiometer 1 12.
4.3 Setting the digital positioner In the actuator version with digital positioner, the travel is calibrated automati - cally, allowing the travel (controlled variable x) and the input signal (reference variable w) of the positioner to be matched in the best possible way.
Press the button briefly to obtain a travel calibration for valve CLOSED when the actu - ator stem extends . Direction of action: Increasing/increasing. Hold the button pressed for longer than 3 seconds (indicated by switchover from sig - nal lamp 8 to signal lamp 9) to obtain a travel calibration for valve CLOSED when the actuator stem retracts .
as it will go to the valve's CLOSED position. Calibration is carried out when both signal lamps (8 and 9) are lit. Travel calibration starts after the mounting position of the potentiometer gear (12) has been determined automatically. This is indi - cated by signal lamp (8) for 6 to 35 mm travel and by signal lamp (9) for 6 to 20 mm travel.
Setting with limited travel range Travel calibration is usually based on the maximum travel of the control valve. If, however, the maximum possible travel is to be limited to a smaller travel end value, press the button (4) once at the start of cali - bration while the signal lamp blinks for 10 seconds.
5.1 Limit switches The retrofit kit (order no. 1400-8830 ) is re - quired to install limit switches. If the actuator is not already equipped with potentiometers or a positioner, the basic unit (order no. 1400-8829 ) is also required. The unit in - cludes the spindle gear (2) and the interme - diate gear (5).
EB 8331-1 EN 19 Retrofitting additional electrical equipment Fig. 7 · Retrofitting limit switches, in this example model 3374-11000002000, version with potentiometers 7 7 5 12 8 6 6 B B 1 Actuator bo.
5.2 Potentiometers Actuators with a digital positioner cannot be equipped with potentiometers. To install the potentiometers, an actuator board with the appropriate potentiometers and gears (12 and 13) is required. If the actuator is not already equipped with limit switches, the basic unit (order no.
5.3 Digital positioner To install a positioner, a corresponding ac - tuator board and TROVIS-VIEW 3374 and connecting cable 0450-1978 are necessary. If the actuator is not already equipped with limit switches, the basic unit (order no. 1400-8829 ) is also required.
5.3.1 Calibrating the positioner To calibrate the positioner, proceed as de - scribed in section 4 of EB 8331-2 EN. 5.3.2 Simplest method to calibrate the actuator If tools such as the TROVIS-VIEW software, PC etc.
6 Dimensions in mm EB 8331-1 EN 23 Dimensions in mm 120 50 15 (30) 294 60 193 90 (75) 204 30 (15) Version with yoke Version with ring nut Stem connector.
SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 Internet: http://www.
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