Casella CEL CEL-414 - Manual (Page 7)

CEL-225/3* (supplied only with Type 1
instruments) or the earlier CEL-225 Pre-
amplifier so that vibration levels can be
measured.
The built-in octave filters of the CEL-
266/3 and CEL-328/3 can be used for fre-
quency analysis of both noise and
vibration. Frequency analysis can also be
performed by the CEL-275/3, CEL-383/3,
CEL-414/3 and CEL-493/3 when they are
connected to one of the CEL-278/3 or /2
Octave, CEL-296/3 or /2 Octave/Third Oc-
tave Filter Sets.
Note*: For noise measurements, Type 1
instruments must use the CEL- 225/3
Preamplifier supplied, (identified by a
black key line). However, for vibration
measure- ment, both Type 1 and Type
2 instruments may use either a
CEL-225/3 or a CEL-225.
A complete “CEL Impulse Sound Level
Meter Type 1” consists of:
CEL-XXX/X Sound Level Meter,
CEL-192
1 ⁄ 2 “ Precision Micro-
phone for Type 1
Instruments,
CEL-225/3 Preamplifier for Type 1
Instruments.
A complete “CEL Impulse Sound Level
Meter Type 2” consists of:
CEL-XXX/X Sound Level Meter,
CEL-230
1 ⁄ 4 “ Microphone and
Preamplifier Unit for
Type 2 Instruments.
The following additional items are also in-
cluded with the instrument:
CEL-4391 Attenuator Pad (with
CEL-493/3 only),
040004 Protective Wallet,
LR6 Battery (4 off),
038054 Calibration Trimtool,
060174 Handbook.
When the instrument is delivered, check
that all of these items have been supplied.
Special transit packing is provided for
both instrument and microphone which
must be retained for use when the instru-
ment is transported or will be consigned
by general carriers. (Current or pending
legislation on recycling states that this
packaging must be retained for re-use or
be recycled in the locally approved man-
ner). Any instrument returned inade-
quately packed to the manufacturers for
calibration, service, or repair will be re-
packaged and charged accordingly.
The following accessories may be or-
dered separately to increase the range of
tasks that can be performed by the instru-
ment.
CEL-250 1 ⁄ 2 “ Precision (Type 1)
Electret Microphone -
robust construction
suitable for long term
monitoring (USE ONLY
with C6601/10
Preamplifier Extension
Cable that has 200 V
polarization supply
disabled),
MK-301 1 ⁄ 4 “ Microphone - allows
Type 1 instruments to
measure up to about
160 dB,
CEL-216 Line Input Adaptor for
Type 1 Instruments,
2. SCHEDULE OF PARTS
General CEL Sound Level Meters Handbook - Page 3