Kobold PSE series, Operating Instructions Manual

Page: 6 / 35

PSR/PSE
page 6 PSR/PSE K23/0322
Due to the force of the leaf spring, which also serves as a holder for the balance
beam, the baffle plate is returned to its rest position if the flow fails. The KOBOLD
baffle plate flow monitors are supplied complete with a pipe section up to a
nominal size of 40. For larger pipe sizes, the devices are supplied without a pipe
section for direct installation and are screwed into commercially available T-
pieces or reducers. The seal is made with PTFE tape.
The flow monitor is intended for commercial systems and may only be used in
accordance with the information in the technical documentation and the
information on the nameplate. It is operated exclusively together with certified
products via an intrinsically safe circuit. They correspond to the applicable
standards and regulations.
The installation regulations (e.g. EN 60079-14) for systems in potentially
explosive areas must be observed.
Permitted use

The intrinsically safe flow monitor can be used as follows, taking the certified
parameters into account:
•
In Zone 0 (Gas-Ex, Cat. 1G) in explosion groups IIA, IIB and IIC
•
In Zone 20 (Dust-Ex, Cat. 1D) in explosion groups IIIA, IIIB and IIIC
•
In Zone 1 (Gas-Ex, Cat. 2G) in explosion groups IIA, IIB and IIC
•
In Zone 21 (Dust-Ex, Cat. 2D) in explosion groups IIIA, IIIB and IIIC
•
In Zone 2 (Gas-Ex, Cat. 3G) in explosion groups IIA, IIB and IIC
•
In Zone 22 (Dust-Ex, Cat. 3D) in explosion groups IIIA, IIIB and IIIC

The qualification with regard to the surface temperature is T4 / T3; for all gases,
vapors, mists and dusts with an ignition temperature ≥ 110 ° C / ≥ 150 ° C, the
products are not an ignition source.

The permissible ambient temperature range extends from -20 ° C ≤ Ta ≤ 70 ° C
in the standard version; up to 110 ° C for the high temperature version.
6.2.1. Electrical parameters when used in all zones, except for zone 20
•
Ui = 60 V AC/DC
•
Ii = 2 A
•
Pi = 40 W / 20 VA
•
Li = negligible
•
Ci = negligible
•
Ambient temperature range of the standard version PSx-21:
-20 °C ≤ Ta ≤ 70 °C → T4 / T110 °C
•
Ambient temperature range of the high temperature version PSx-22:
-20 °C ≤ Ta ≤ 110 °C → T3 / 150 °C