• Ideal for outdoor use; select units feature heater option
• Copy sampler programs and download data via USB port
• CE, UL approved

This all-weather sampler stands up to environmental extremes. Its linear low-density polyethylene plastic housing provides superior weather, corrosion and UV resistance. Top-mounted compressor is protected from corrosive gases, rodents and standing water that may occur at floor level. Its air-sensing thermostat maintains sample liquid at 4°C (±1°C), even on hot 100°F days. A fan-forced air-cooled condenser and front ventilation let you position the sampler either against a wall or inside a sampler enclosure. Both the refrigerator and controller compartments lock for high-security needs.

The corrosion-resistant peristaltic pump features Delrin® construction, requiring little maintenance—just change tubing periodically. Intake line thoroughly purges before and after every sample collected, greatly reducing any chance of cross-contamination. If the unit detects a sample attempt failure, it performs a repeat cycle using a highpressure purge before retaking.

The programmable datalogging controller stores up to 325,000 records, each with start time, sample time, sample ID and more. Transfer data via USB memory stick (sold separately). The user interface display shows all programmable criteria on a single screen. The screen also instantly displays alerts for sampling errors and maintenance issues.

Optional input/output (I/O) modules expand AS950 controller capabilities. We offer two modules, either of which can be field-added at any time. The IO9001 module (stock # 89217) provides a single high-voltage relay output you can trigger based on a specified alarm event. The IO9004 module (stock # 89218) provides two 0/4-20 mA analog inputs to receive additional measurements from external instruments (such as a flow sensor or pH probe); three 0/4-20 mA outputs to supply recorded measurements to external instruments; four contact closure digital outputs for alarm events; and four relay outputs controlled by alarm events.

Samplers include: base cabinet, two keys, temperature control system, controller/pump, bottle(s), bottle retainer, 25' vinyl intake tubing and Teflon®/stainless steel strainer.

Shipping: Ships motor freight.

• Temperature limits: 32 to 122°F (0 to 50°C) standard -40 to 122°F (-40 to 50°C) with heater option
• Sample cooling: 1/5 hp, 115°C (239°F) thermal overload protector
• Maximum lift: 28 ft
• Transport velocity: 2.9 ft/sec at 15-ft vertical lift (typical)
• Sample volume: programmable in 10-mL increments from 10 to 10,000 mL
• Accuracy: ±3%
• Sample modes
  Pacing: time-fixed, flow-fixed, time-variable, flow-variable, event-based
  Distribution: single-bottle composite, multi-bottle composite, multi-bottle discrete, bottles per sample, samples per bottle, combination of bottles per sample, and samples per bottle
• Sample interval: single increments from 1 to 9999 flow pulses, 1 to 9999 minutes in 1-minute increments
• Sample programs: runs two programs simultaneously, sequentially or in parallel
• Internal clock: real time, accurate to ±1 second per day at 25°C (77°F)