HF scientific MicroTOL Online Turbidimeter old series- 0-1000 NTU - Manual (Page 12)

MICRO TOL (12/04)
Rev. 2.7 6
3.0 Installation and Commissioning
Prior to use for the first time, the supplied desiccant pouch will need to be installed. Refer
to section 9.2 Replacing or Installing the Desiccant Pouch.
3.1 Mounting & Site Selection
The instrument is designed for wall mounting. If wall mounting is not practical, the
instrument can be mounted on any suitable level surface. For ease of service there should
be about 20 cm (8”) free area above the instrument; this will ensure enough room for
calibration and cuvette maintenance. Choose a location that is easily accessible for
operation and service and ensure that the front display rests at eye level. The overall
mounting dimensions of the instrument are shown in Figure 3. The recommended
mounting screws are M6 (¼”) for the instrument enclosure and M4 (3/16”) for the
junction box. The Micro TOL is designed to have the field terminal box cradled under the
sensor portion of the instrument. It is recommended that the field terminal box be
mounted first, and then the rest of the instrument be mounted on top.
Figure 3: Overall Mounting Dimensions of the Instrument
It is critical that the instrument be mounted as close as possible to the sampling point to
ensure a quick response time (within 2-3 meters (6-10 ft) of the sampling point).