Rev. 09/2022
23
5.1
Unpacking
Unpack the device, taking care not to damage it, and ensure that the assembly instructions are
always stored with the device and are easily accessible. Check the contents for completeness
and verify that the device type meets your application requirements.
Risk of destruction due to electrostatic discharge!
The VariStep3 stepper motor driver may only be installed by specialized
personnel who has been trained in handling ESD sensitive components and
with due regard to relevant ESD standards. It must be installed into a con-
trol cabinet, and it must comply with the ESD standard IEC 61340-5-1.
Damage caused by electrostatic discharge is not covered by warranty.
Scope of Supply
The scope of supply of the VariFuel3 air/gas mixer consists of the following components:
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VariFuel3 air/gas mixer
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Gasket for mixture outlet flange
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Assembly instructions
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Declaration of Incorporation
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EU Declaration of Conformity
Accessories
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Flow body
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Optional: Mounting flanges for gas inlet and mixture outlet
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Connection cable for connection between VariFuel3 and VariStep3 stepper motor driver
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VariStep3 stepper motor driver incl. configuration software and USB interface cable
5 Installation Instructions