BA_373-E45_05_DEF_MJ_21
19
7 |
36
W. Baelz & Sohn GmbH & Co.
· Koepffstrasse 5 · 74076 Heilbronn · Germany ·
www.baelz.de Seite | Page
Motorized Linear Actuator
baelz 373-E45
2.3 Type name
2.4 Accessories and options
Table 2.
Options for Actuators
2EZ-Fg
Two additional limit switches for signalling end positions or intermediate positions, freely adjustable,
max. 250 V AC, rating for resistive load max. 5 A, for inductive load max. 3 A
and
200 Ω / 1 kΩ / 5 kΩ potentiometer, linearity error ≤ 0.5%, max. 1.5 W, contact current 30 mA, stroke
reduced by [%ohm x actual stroke/44] mm, depending on valve stroke
7020A
Digital positioner for actuator control, self adapting
1 input signal: 0(2)…10 V, 0(4)…20 mA or (3-point)
2 output signals: 0(2)…10 V and 0(4)…20 mA
1 digital input, 2 relays for feedback on end or intermediate positions,
Interface RS485 Modbus RTU, incl. 5 kΩ potentiometer
Hzg
Heating resistor with thermoswitch against moisture with automatic temperature regulation,
max. 15 Watts, supply voltage 24, 115, 230 V 50/60 Hz
baelz 373 - E45 - 40 - 15 - S21
motorized linear actuator actuator type thrust
positioning speed
yoke type
2.5 Operating conditions
In case of extreme variations in ambient temperature and high humidity levels, installation of a
heating resistor is recommended to minimise condensation in the actuator.
Actuator covers with suppression of thermal bridges (dual covers) are recommended.
● Connect the heating element (HZG) as shown in the wiring diagram.
● Put the device into service as soon as it is installed.
The actuators are suitable for installation in industrial plants and in waterworks and power
plants with a low pollutant concentration.
For use outdoors or in an environment with a high pollutant concentration, such as heavy traffic
areas, industrial areas (chemical plants, sewage plants, etc.), coastal areas and the open sea,
the actuators must have external parts made of non-corrosive material and must be provided
with a special coating.
When used outdoors, the actuator must be protected with an additional cover against
● rain
● direct sunlight
● strong draughts
● dust
3. TRANSPORT AND STORAGE
Risk of injury caused by failure to observe safety regulations!
Caution
● Wear the required personal and other protective equipment.
● Protect the linear actuator from impact, shock, vibration and similar influences.
● Store the linear actuator (or the complete actuator/valve assembly) in a dry place.
● Observe the transport and storage temperature limits of -20 to +60°C.
Summary of Contents for BA 373-E45
Page 36: ......
