Hach AS950 Basic Installation And Maintenance page 5

Specification
Sample volume accuracy
(typical)
Sampling modes
Run modes
Transfer velocity (typical)
Liquid detector
Air purge
Tubing
Wetted materials
Memory
Communications
Electrical connections
Analog outputs
Analog inputs
Digital outputs
Relays
Certifications
Details
±5% of 200 mL sample volume with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft) of
in. vinyl intake tube, single bottle, full bottle shut-off at room temperature and
1524 m (5000 ft) elevation
Pacing: Fixed Time, Fixed Flow, Variable Time, Variable Flow, Event
Distribution: Samples per bottle, bottles per sample and time based (switching)
Continuous or non-continuous
0.9 m/s (2.9 ft/s) with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft) of
tubing, 21 °C (70 °F) and 1524 m (5000 ft) elevation
®
Ultrasonic. Body: Ultem
compliant. Contacting liquid detector or optional non-contact liquid detector
An air purge is done automatically before and after each sample. The sampler
automatically compensates for different intake tube lengths.
Intake tubing: 1.0 to 30.0 m (3.0 to 99 ft) length, ¼-in. or
™
ID Teflon -lined polyethylene with protective outer cover (black or clear)
Stainless steel, polyethylene, Teflon, Ultem, silicone
Sample history: 4000 records; Data log: 325,000 records; Event log:
2000 records
USB and optional RS485 (Modbus)
Power, auxiliary, optional sensors (2x), USB, distributor arm, optional rain
gauge, thermal (AWRS only)
AUX port: none; optional IO9000 module: Three 0/4–20 mA outputs to supply
the recorded measurements (e.g., level, velocity, flow and pH) to external
instruments
AUX port: One 0/4–20 mA input for flow pacing; optional IO9000 module: Two
0/4–20 mA inputs to receive measurements from external instruments (e.g.,
third-party ultrasonic level)
AUX port: none; optional IO9000 module: Four low voltage, contact closure
outputs that each supply a digital signal for an alarm event
AUX port: none; optional IO9000 module: Four relays controlled by alarm
events
CE, cETLus
NSF ANSI standard 51 approved, USP Class VI
3
/ -
8
3
/ -in. vinyl intake
8
3 3
/ -in. ID vinyl or / -in.
8 8
English 5