General Monitors S216A, Instruction Manual

Page: 23 / 39

Breaker Bottle & Ampoules
General Monitors offers ampoules with
breaker bottles as a method of introducing
calibration gas to the Model S216A. It will be
necessary to place the ampoule inside a
breaker bottle (figure 18). The ampoule
should be 50% of full scale. Place the breaker
bottle over the sensor and follow the
calibration procedure listed on page 17 of this
Instruction Manual.
fig ure 18
When the display indicates
AC
break the
ampoule. The display will change to CP
indicating that the sensor is seeing the gas.
When the display indicates
CC
, remove
the breaker bottle and allow the sensor to
see clean air.
Use the table below to determine 50% of
full scale for the different sensors.
Sensor Range (type) 50% of Full
Scale
0 to 100 ppm (-1) 50 ppm
0 to 50 ppm (-5) 25 ppm
0 to 20 ppm (-9) 10 ppm
(
values given in parts per million
)
NOTE: General Monitors recommends
using ampoules for calibrating H
2
S gas
detection instruments. The H
2
S Portable
Purge Calibrator is available for
applications where a calibration method of
flowing H
2
S gas to the sensor might
provide a better calibration source (e.g.
high humidity environments).
H
2
S Portable Purge Calibrator
An alternate method for introducing
calibration or test gas to the Model S216A
is available. The H
2
S Portable Purge
Calibrator (figure 19) is a compact,
practical, accurate and safe system for
field calibration of H
2
S Sensors. The
bottle is filled with a hydrogen sulfide
(H
2
S) in air mixture and is available in 7
concentrations. The temperature limitation
for operation and storage is 0°F to +130°F
(-18°C to +54°C).
18
Operation General Monitors