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T
C
ABLE OF
V
User Identification
Site Identification
Allow Viewing of Peak Reading in the Field
I
P
ONIZATION
E
V
& R
XPLODED
IEW
2
ONTENTS
C
I
OMMON
NDUSTRIAL
EPLACEMENT
W
3
ARNINGS AND
4
4
Failure to perform certain procedures or note certain conditions may
6
impair the performance of the instrument. For maximum safety and
performance, please read and follow the procedures and conditions
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8
outlined below.
9
!
9
Recharge battery only in a non-hazardous location.
10
10
!
Instrument tested for intrinsic safety in explosive gas/air (21.%
10
oxygen) mixtures only.
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11
!
UV lamp requires periodic cleaning to function properly. The
11
frequency of cleaning is dependent upon the environment in which
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12
the VX500 is used. Industrial Scientific recommends cleaning the
12
UV lamp after every 40 hours of use.
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13
Any new or freshly cleaned 10.6 eV lamp requires a burn-in
!
13
13
period of 24 hours in order for the lamp's output to stabilize. This is
done by placing the lamp into the lamp conditioner found on the
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charger/datalink accessory.
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15
16
Always check the ionization potential of the target gas prior to
!
16
sampling to ensure proper lamp selection. For example, a 10.6 eV
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lamp can only detect gases with an ionization potential below
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10.6 eV.
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The presence of water vapor in the sample stream can cause
!
18
quenching of the detector signal due to UV absorption.
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19
Oxygen and methane are UV absorbers. Significant changes in
!
19
their concentration can cause a change in the PID signal.
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20
!
Ammonia gas causes degradation of the VX500 PID module's
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performance.
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22
!
Ethylene gas does not provide a consistent signal therefore the
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22
VX500 should not be relied upon to provide consistent readings
23
when monitoring ethylene.
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24
A 5 minute warm-up time is required for VOC readings to fully
!
26
stabilize after power-up of the VX500.
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35
39
41
C
S
AUTIONARY
TATEMENTS
3
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