Hach SIGMA 900, User Manual

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Page 10
Specifications
8837spc.fm
Specifications
Multiple Programs Stores up to five sampling programs.
Cascade
Allows using two samplers in combination where the first sampler at the completion of
the program initiates the second.
Data Logging
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 the
next sample, bottle number, number of samples collected, number remaining, sample
volume collected, volume remaining, and sample identification number.
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.
AC Power Backup
(Pump Controller Only)
Rechargeable 6 amp-hour gel lead acid battery takes over automatically with ac line
power failure. Integral trickle charger maintains battery at full charge (factory installed
option).
Internal Battery 5 year lithium battery maintains program settings and real time clock.
Overload Protection
Controller: 5 amp dc line fuse for pump, 1 amp dc line fuse for ac power connector
Compressor: Thermal overload relay, opens at 110 °C
Environmental
Sample Cooling
Refrigeration: Top mounted compressor/condensor with fan-forced air cooler
condenser; 3-sided wrap-around evaporator plate; 2 in. rigid foam insulation;
microprocessor controlled thermostat maintains sample liquid at (4 °C) ±1 °C; frost
free; non-CFC R134A refrigerant compression gasket door seal; air cooled condenser
is protected against corrosion with a food grade epoxy; all exposed copper tubing is
insulated to avoid sweating and condensation.
Temperature Range
General Use: -29 °C to +50 °C (-20 °F to 122 °F); with optional controller compartment
heater, -40 °C to +50 °C (-40 °F to 122 °F)
Liquid Crystal Temperature
Range
Operating: -10°to 70 °C (-14° to 158 °F)
Storage: -40° to 80 °C (-40° to 176 °F)
Recovery Time
With door open, one minute in 75 °F ambient and five minutes 4 °C sample
temperature.
Pull Down Time From 24 °C (75 °F) to 4 °C (39 °F), 15 minutes