DriSteem Vapor-logic3 Instructions d'exploitation télécharger pdf (Page 48)

Operation:

Conductivity probe

Water level control: conductivity probe.

Operation

Probe system

Standard water systems use a conductivity probe to

control water levels for optimum operating

efficiency. The three-probe system is monitored by

the VAPOR-LOGIC

board, which performs all the

necessary logic and timing functions to provide total

water level control and safety shutdown.

VAPOR-LOGIC

automatically maintains the water

level between the upper two probes A and B (see

Figures 46-1 and 46-2 below). When the water level

falls below probe B, the fill valve is opened until the

water level reaches the upper probe A. Water must

remain in contact with the probe surface for a

minimum of two seconds for VAPOR-LOGIC

determine that the water is at the probe's level,

ensuring that turbulence does not cause an incorrect

level reading.

Water level - A

Water level - B

Water level - C

Figure 46-1: Conductivity probe system

for GTS

, VLC

, VAPORMIST

and CRUV

Water level - C

Water level - B

Water level - A

Each time the fill valve is energized, the probe system

is tested by the VAPOR-LOGIC

system. If the signal

from the probe assembly is beginning to deteriorate,

the message Replace probes will appear. Once the

probe system has reached its maximum usable life, the

humidifier will shut down and the message Probe

fault will appear.

An adjustable skim time allows for an extended skim

period (0-120 seconds) to reduce surface mineral

accumulation. When skimming, the fill valve remains

energized for the designated delay time after the

water level reaches the upper probe A.

Probe C provides low water protection for the

heating elements. If the water level falls below probe

C, the heaters are de-energized.

Figure 46-2: Conductivity probe system

for STS

and LTS

OM-632 OM-270

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 74 75

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DriSteem Vapor-logic3 Instructions d'exploitation Page 48

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