HF scientific Micro200BW Turbidimeter - 0-100 NTU - Manual (Page 21)

MICRO 200 BW 0-10 & 0-100 NTU (05/05)
Rev. 3.4
Figure 5
Access Cover Removal
WARNING: Do not restore power until the access cover
has been replaced and secured. When rout-
ing the cabling for the following sec-
tions, allow enough excess cable length to
swivel the analyzer upside down. Note
that a cable strap is provided on the
mounting bracket. Refer to figure 6 for
suggested cable routing. Do not overtighten
the four captive screws when replacing
cover.
Figure 6
Cable Routing
2.4.1 Cable & Cord
Interconnecting Cable: The standard interconnecting
cable between the analyzer and the turbidity sensor is 6
feet (1.83 meters) in length (Catalog No. 20853). This
length may be decreased without affecting instrument
performance. For longer cable lengths consult HF scien-
tific, inc.
WARNING: Ensure that power to the analyzer is
removed prior to connecting or
disconnecting the sensor.
Page 9
Extra Cable
→ →→ →→
however, replacement of
the desiccant pack will be
required from time to time.
To determine the condition
of the desiccant, check the
included humidity indicator
card. If required, a new
sealed desiccant pouch
and indicator card are avail-
able from HF scientific
inc. part #21555R.
It is essential that all
enclosure seals be main-
tained. The emergency
drain and o-rings that are
supplied with each new
instrument form part of
the instrument humidity
seal. Inspect these items
each time the desiccant
pouch is replaced. Replace any parts found to be
defective.
2.4 ANALYZER CONNECTIONS
All connections are reached by removing the access
cover. Heed all warnings and precautions prior to
removal.
WARNING: Before removing access cover disconnect
all power from the MICRO 200 BW
analyzer.
1) Unplug the instrument or
2) Turn off the power at the circuit breaker.
3) Remove power to alarm contacts if greater than 30
VAC is connected for external operations.
To remove the access cover (refer to figure 4):
1) Loosen the two analyzer clamping knobs.
2) Swivel the analyzer top forward, such that the back
is now facing you.
3) Retighten the two analyzer clamping knobs.
4) Loosen the 4 captive screws.
5) Remove access cover.
Figure 1
Desiccant Tray Installation