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Hach AS950 Installation And Maintenance

Hach AS950
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Specification Details
Sample volume repeatability
(typical)
±5% of 200 mL sample volume with: 4.6 m (15 ft) vertical lift, 4.9 m
(16 ft) of
3
/
8
-in. vinyl intake tube, single bottle, full bottle shut-off at
room temperature and 1524 m (5000 ft) elevation
Sample volume accuracy
(typical)
±5% of 200 mL sample volume with: 4.6 m (15 ft) vertical lift, 4.9 m
(16 ft) of
3
/
8
-in. vinyl intake tube, single bottle, full bottle shut-off at
room temperature and 1524 m (5000 ft) elevation
Sampling modes Pacing: Fixed Time, Fixed Flow, Variable Time, Variable Flow, Event
Distribution: Samples per bottle, bottles per sample and time based
(switching)
Run modes Continuous or non-continuous
Transfer velocity (typical) 0.9 m/s (2.9 ft/s) with: 4.6 m (15 ft) vertical lift, 4.9 m (16 ft) of
3
/
8
-in.
vinyl intake tubing, 21 °C (70 °F) and 1524 m (5000 ft) elevation
Liquid detector Ultrasonic. Body: Ultem
®
NSF ANSI standard 51 approved, USP
Class VI compliant. Contacting liquid detector or optional non-
contact liquid detector
Air purge An air purge is done automatically before and after each sample.
The sampler automatically compensates for different intake tube
lengths.
Tubing Intake tubing: 1.0 to 30.0 m (3.0 to 99 ft) length, ¼-in. or
3
/
8
-in. ID
vinyl or
3
/
8
-in. ID Teflon
-lined polyethylene with protective outer
cover (black or clear)
Wetted materials Stainless steel, polyethylene, Teflon, Ultem, silicone
Memory Sample history: 4000 records; Data log: 325,000 records; Event log:
2000 records
Communications USB and optional RS485 (Modbus)
Electrical connections Power, auxiliary, optional sensors (2x), USB, distributor arm,
optional rain gauge, thermal (AWRS only)
Analog outputs 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
Analog inputs 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)
Digital outputs AUX port: none; optional IO9000 module: Four low voltage,
contact closure outputs that each supply a digital signal for an alarm
event
Relays AUX port: none; optional IO9000 module: Four relays controlled
by alarm events
Certifications CE, cETLus
English 5

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Hach AS950 Specifications

General IconGeneral
Sample FrequencyProgrammable
TypePortable
Sampling MethodVacuum Pump
Temperature ControlRefrigerated
Bottle Configuration24 x 1L bottles
Power Supply12V DC
CommunicationRS-232
Sampler TypePortable or Stationary
Vertical Lift8.2 m
Enclosure RatingIP67
Number of SamplesUp to 999
Storage Capacity24 samples
Bottle Options1L

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