ATI
Q45S/87 Portable Wet H
2
S Monitoring System
Part 1
– Introduction
7
O&M Manual
– Rev-C
Sensor Holder
PVC duct insertion assembly with air-purge nozzle.
Power:
Two generic AA batteries, low battery indication at 1.60V
DC.
Enclosure:
NEMA 4X, IP66, polycarbonate, stainless steel hardware,
weatherproof and corrosion resistant,
HWD: 4.4" (112 mm) x 4.4" (112 mm) x 3.5" (89 mm)
Mounting Options
Supplied with carrying handle and cable glands installed.
Outputs:
Two 0-2.5 VDC isolated outputs are provided on for
connection to data recorders, etc.
Battery Life:
Approximately 240 hours of operational use on a set of
batteries (without backlight).
1.5
Q45S/87 Performance Specifications
(Common to all variations)
Accuracy
1% of selected range or 0.2 PPM
Repeatability
0.5% of selected range or 0.1 PPM
Sensitivity
0.05% of selected range
Non-linearity
0.1% of selected range
Warm-up Time
3 seconds to rated performance (electronics only)
Supply Voltage Effects
± 0.05% span
Instrument Response Time
60 seconds to 90% of step input at lowest damping
