flow direction selector (in the -GL and -FA models) which determines the flow direction, is
placed between the diaphragm housing and the Pipe Section. The selector can be used
for both directions. To change the direction of flow, loosen the four hex screws holding
the diaphragm housing at the pipe section. Move the selector to the correct position,
right or left. Remount the indicating unit and turn the flow direction arrow on the pipe
section (if applicable).
# 6. Gas/liquid leakage
If you find process liquid/gas coming out of the diaphragm housing, most probably you
will find a broken diaphragm or lever. If the Monitor has been exposed to excessive pres-
sure or if the process liquid/gas is too aggressive to the rubber in the sealing, this can be
the cause of the failure. The micro switch / relay inside the Indicating Unit normally gets
damaged by this. Order a new Indicating unit and mount it on the existing pipe section.
Do not replace the diaphragm/ lever only, as it is normally necessary to recalibrate the
Monitor.
# 7. Spares
Please contact your Eletta representative, www.eletta.com,
[email protected] or Eletta Sweden:
+46-8-6030780
# 8. Temperature
Indicating Unit V-and S-series: -20°C to 90°C (-4°F to 200°F) standard (120°C/250°F
max as option). Higher process temperature possible with remote installation. Indicating
Unit D- and R-series: -10°C to 65°C (15°F to 150°F). Higher process temperature pos-
sible with remote installation. Indicating unit M-series -10°C to 100°C (15°F to 210°F).
Higher process temperature possible with remote installation. Pipe Section: The pipe
sections (GL all sizes and FA DN40 to DN100) are equipped with spacers made of
Polyamide (PA) plastic material which can handle liquid/ gas temperature up to 120°C
(250°F). For higher process temperature, we recommend to use the stainless steel pipe
section, without spacers.
# 9. Material
Pipe Section: Type -GL; de-zincificated copper alloy. Type GSS; sea worthy stainless
steel Type FA; DN32 (ANSI 1 ¼") bronze ≥DN40 (ANSI 1 ½") painted cast iron. Type FSS;
stainless steel. Diaphragm, o-rings and sealings; HNBR; Textile reinforced Hydrated
Nitrile rubber is standard for all models except stainless steel. EPDM; textile reinforced
rubber, optional for all models. FPM; Textile reinforced Fluorinated rubber, standard in
stainless steel models, optional for others.
# 10. Electrical connections
For V-series: A SPDT potential free micro switch with silver plated (standard) surfaces.
Max 460VAC/15A. Please see inside cover for wiring diagram label. For S-series: Dual
SPDT potential free micro switches with silver plated (standard) surfaces. Max. 460
VAC/15A. Please see inside of terminal box for wiring diagram. D-series; supply voltage
24 VDC. Output: Isolated analog current 4 – 20 mA, frequency signal 200 – 1000 Hz and
pulse output. See see inside cover for wiring diagram. M-series supply voltage 24 VDC.
Output: Isolated analogue power signal 4 – 20 mA. See label on enclosed cables for
connection diagram.
# 11. The Ex versions
The Ex versions of our flow monitors are designed to be used in explosive atmospheres.
The monitors are approved according to the IECEx certification scheme as an intrinsically
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