ATI
Q45P pH System
Part 1
– Introduction
7
O&M Manual
Rev-B (7/15)
Battery Life:
Approximately 240 hours of operational use on a set of
batteries (without backlight).
1.4
Q45P Performance Specifications
(Common to all variations)
Accuracy
0.1% of span or better (± 0.01 pH)
Repeatability
0.1% of span or better (± 0.01 pH)
Sensitivity
0.05% of span (± 0.01 pH)
Stability
0.05% of span per 24 hours, non-cumulative
(± 0.007 pH)
Warm-up Time
7 seconds to rated performance
Instrument Response Time
6 seconds to 90% of step input at lowest setting
Temperature Drift
Span or zero, 0.02% of span/°C
Max. Sensor-Instrument
3,000 ft. (914 meters) w/ preamp,
Distance
30 ft. (9.1 meters) w/o preamp
Sensor Types
Model Q25P pH w/ preamp - 5 wire input, or combination
style pH electrode w/ TC - 2 wire input
Equipment bearing this marking may not be discarded by traditional
methods in the European community after August 12 2005 per EU Directive
2002/96/EC. End users must return old equipment to the manufacturer for
proper disposal.
