Specifications – Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual User Manual
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Specifications
Recovery time
Sampler temperature recovers to 4 °C within 5 minutes after the door has been
held open for one minute in 24 °C (75 °F) ambient environment while in an active
cooling cycle.
Pull down time
Air temperature drops from 24 °C (75 °F) to 4 °C (39 °F) within 20 minutes
(typical).
Certifications
North America: cETLus listed -Conforms to UL 61010-1, Certified to CSA C22.2
No. 61010-1 and UL 471 and CSA C22.2 No. 120.
Europe / IEC: CE - EN / IEC 61010-1 and EN / IEC 60335-2-89 (safety), EN / IEC
61326 (EMC) & CISPR 11 (RF emissions)
Sample bottle capacity (see
and
)
Single bottle mode
(1) 21 L (5.5 gal) polyethylene or (1) 10 L (2.5 gal) polyethylene or (1) 10 L (2.5
gal) glass bottle
Multiple bottle mode
(2) 10 L (2.5 gal) polyethylene and/or 10 L (2.5 gal) glass bottles
(4) 10 L (2.5 gal) polyethylene and/or 10 L (2.5 gal) glass bottles
(8) 2.3 L (0.6 gal) polyethylene and/or 1.9 L (0.5 gal) glass bottles
(24) 1 L polyethylene and/or 350 mL glass bottles
Intake accessories
Strainers
316 stainless steel in standard size, high velocity or low profile for shallow depth
applications and Teflon
®
/316 stainless steel in standard size
Sample intake tubing
9.5 mm (
3
/
8
in.) I.D. vinyl or Teflon
®
-lined polyethylene
SD900 controller
Enclosure
High-Impact, injection-molded PC/ABS blend; submersible, watertight, dust-tight,
corrosion, and ice resistant; NEMA 4X, 6, IP 67
Power requirements
Refrigerated sampler: 15 VDC provided by 8754500 power supply
AWRS sampler: 15 VDC provided by integral power supply
Overload protection
7 amp DC line fuse for pump
Pump
Peristaltic high speed, with spring-mounted rollers
Pump rollers
Nylatron,
impact/corrosion resistant
Pump enclosure
Track is injection-molded polyphenylene sulfide. Cover is polycarbonate, high
impact resistant. Pump enclosure rated IP37.
Pump tubing
9.5 mm I.D. x 15.9 O.D. mm (
3
/
8
in. x
5
/
8
in.) silicone
Pump tubing life
20,000 sample cycles under the following conditions:
• 1 L sample volume
• 1 rinse
• 6 minute pacing interval
• 16 ft of
3
/
8
in. intake tube
• 15 ft of vertical lift
• 70 °F sample temperature
Tubing replacement time
< 1 minute using pre-cut pump tube
Maximum vertical lift to draw sample
Minimum of 28 ft, using 29 ft of
3
/
8
-in. vinyl intake tube at sea level at 20–25 °C
(68–77 °F)
Pump flow rate
1.25 gpm (4.8 L/min) at 3 ft (1 m) vertical lift using
3
/
8
-in. intake tube
Typical sample volume repeatability
± 5% of 200 mL sample volume using uncalibrated liquid detect with 15 feet
vertical lift,16 feet of
3
/
8
-in. vinyl intake tube configured for a single bottle using full
bottle shut-off at room temperature and 5000 ft elevation
Typical sample volume accuracy
± 10% of 200 mL sample volume using uncalibrated liquid detect with 15 feet
vertical lift,16 feet of
3
/
8
-in. vinyl intake tube configured for a single bottle using full
bottle shut-off at room temperature and 5000 ft elevation