Hach 900 MAX General Dimensions, Cabinet, Temperature Range, Recovery Time, Pull-Down Time, Pager

		Specifications
		Specifications are subject to change without notice.
General
	Dimensions	Width 61 cm (24 in.), Depth 61 cm (24 in.), Height 110 cm (43.5 in.), Weight 63.3 kg (140 lb)
	Cabinet	Fiberglass reinforced plastic with beige UV inhibited polymer laminate.
	Temperature Range	-29 to +50 °C (-20 to 122 °F); With optional controller compartment heater, -40 to +50 °C
		(-40 to 122 °F).
	Recovery Time	With door open one minute in 24 °C (75 °F) ambient and 4 °C sample temperature, 5
		minutes.
	Pull-Down Time	From 24 °C (75 °F) to 4 °C (39 °F), 15 minutes.
		Top mounted compressor/condenser with fan forced air cooled condenser; three-sided
	Thermal System	wrap-around evaporator plate; 2 in. rigid foam insulation; microprocessor controlled
		thermostat maintains sample liquid at 4 °C (±1 °C); frost free; compression gasket door seal;
		refrigeration components and plumbing are corrosion protected with conformal coating.
	Power Requirements	115 V ac, 60 Hz (230 and 100 V ac optional); Compressor Running Amperage 1.5–2.0 A.
		Locked rotor current 12 amps. Installation Category II.
	Optional ac	Pump/Controller Only: Rechargeable 6 amp-hour gel lead acid battery takes over
	Power Backup	automatically with ac line power failure. Integral trickle charger maintains battery at full
	(Pump Controller Only)	charge (factory installed option).
	Internal Battery	Two C cell alkaline batteries; maintains program logic and real time clock for five years.
		Internal battery current draws less than 40 micro amps.
	Control Panel	21 key membrane switch keypad with 4 multiple function soft keys; 8 line x 40 character
		alphanumeric, back lit liquid crystal graphics display. Self prompting/menu driven program.
		Records program start time and date, stores up to 400 sample collection times/dates, all
		program entries, operational status including number of minutes or pulses to next sample,
		bottle number, number of samples collected, number remaining, sample identification
	Data Logging	number, and all logged data (i.e. level, flow, pH, stream temperature, refrigerated
		compartment sample temperature, ORP, rainfall, and any externally logged data - up to 7
		external channels). Also, up to 200 events are logged, including alarm conditions, program
		run/stop events, etc.
		When equipped with integral flow meter, pH/temperature/ORP meter, conductivity, and/or
	Set Point Sample Trigger	D.O. monitoring options, sampling can be triggered upon an upset condition when field
		selectable limits are exceeded. Concurrent with normal sampling routine, sample liquid is
		deposited in designated “trouble bottle(s)”.
		Multiple Bottle Time, Multiple Bottle Flow, Composite Multiple Bottle Time, Composite
	Sampling Modes	Multiple Bottle Flow, Composite Time, Composite Flow, Flow with Time Override, Variable
		Interval, Start/Stop, and Level Actuation.
	Program Delay	Three formats: (1) 1-9,999 minutes or flow pulses in one unit increments (2) programmable
		sampler start time/date, and (3) programmable time/day of week.
	Overload Protection	Controller: 5 amp dc line fuse. Compressor: Thermal overload relay opens at
		110 °C (230 °F).
	Diagnostics	Tests keypad, display, ROM, pump, liquid sensors, velocity signal, and distributor.
	Program Lock	Access code protection precludes tampering.
Communications
	EPROM Flash Memory	Via RS232. Permits embedded software upgrades in the field.
	Serial Interface	RS232 compatible; allows on-site collection of stored data.
	Modem (optional)	14400, V.32 bis, V.42, MNP2-4 error correction. V.42 bis MNP5 data compression.
		MNP10-EC Cellular Protocol.
	Pager	Alarm codes sent to up to three separate pagers’ telephone numbers.
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8990spc.fm		Specifications