Sampler Receptacle (940 Only) - Hach 911 User Manual

Intrinsically safe flow meters
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4.6 Sampler Receptacle (940 Only)

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DO NOT TIN WIRES PRIOR TO TERMINATION
Figure 20 Sampler Interface Wiring
DANGER
Do not attempt to connect any sampler to the 940 Flow Meter without the use of the
Optically Isolated Sampler Interface (Cat. No. 4274). Failure to do so may result in
fire or explosion.
DANGER
Le raccordement d'un échantillonneur quelconque à un débitmètre 940 sans
utilisation de l'interface d'échantillonneur à isolation optique (No. Cat. 4274) annule
à la fois la garantie et l'agrément de sécurité intrinsèque du débitmètre, et peut
provoquer un incendie ou une explosion. Reportez-vous aux schémas de contrôle
de l'installation.
The optional "sampler" port lets the user to connect a 940 flow meter to a Sigma
wastewater sampler
(Figure
Flow proportional sampling
Storm water trigger, based on level, useful for EPA NPDES permitting program.
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21). The option provides several features:
Meter Installation
37

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