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1 General information
This operating manual is for handling pressure regulators. Operating errors can be prevented only with knowledge of
this operating manual.
Operating personnel must be informed about the contents of this operating manual.
Improper use may result in hazard to life for the user or other third parties and/or damage to other material assets.
We reserve the right to make technical modifications for improvement purposes to the comparisons and information in
this operating manual.
2 Warranty provisions
There shall be no liability, or the warranty shall be void under the following conditions:
- The information and instructions of the operating manual are not followed.
- The devices are improperly used.
- The devices are used for purposes other than their intended one.
- Any type of functional changes were conducted without the written permission of ZIMMERLI MESSTECHNIK AG.
- Disregard of the applicable safety regulations when operating the device.
- Guards were not used or functionality was disabled.
Only approved, original spare parts must be used when replacing parts and/or for procuring spare parts.
3 Purpose
These type of pressure regulators are suitable for various tasks (e.g. inerting containers with inactive gases). The
degree of protection for the standard design is IP40 and IP54 with weather protection.
The exact design is customized and must therefore be taken from the device’s technical information.
3.1 Intended use
Ambient temperature:
-20 °C up to +40 °C
Ambient pressure:
0.8 to 1.1 bar
Medium pressure:
≤ 16 bar
Gas temperature:
-40 up to 180°C
Degree of protection:
IP40, IP54 with weather protection
Limitations of the medium: No combustible gases in an explosive concentration. Exception, ATEX-certified devices
according to:
II 2 G Ex h IIA T4 Ga
II 2 G Ex h IIB T4 Gb
II 2 G Ex h IIC T4 GC
II 2 D Ex h IIIC T4 Da
External radiation (electromagnetic, ionizing radiation, ultrasound): none (if such radiation is present in the area used,
the hazard must be taken into account and assessed by the user.) Keep the devices free of dust (dust thickness
smaller than 1 mm).
3.2 Assembly work on the pressure regulator:
The user and operator must take measures for mounting, disassembly, and maintenance work of and on the pressure
regulator in areas with explosive atmospheres to prevent these operations from creating sources of ignition.
