Hach Sigma 900 User Manual page 10

Specifications
Multiple Programs
Cascade
Data Logging
Power
Requirements
AC Power Backup
(Pump Controller Only)
Internal Battery
Overload Protection
Environmental
Sample Cooling
Temperature Range
Liquid Crystal Temperature
Range
Recovery Time
Pull Down Time
Page 10
Specifications
Stores up to five sampling programs.
Allows using two samplers in combination where the first sampler at the completion of
the program initiates the second.
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.
115 V ac, 60 Hz (230 and 100 V ac optional); Compressor Running Amperage
1.5–2.0 A. Locked rotor current 12 amps.
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).
5 year lithium battery maintains program settings and real time clock.
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
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.
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)
Operating: -10°to 70 °C (-14° to 158 °F)
Storage: -40° to 80 °C (-40° to 176 °F)
With door open, one minute in 75 °F ambient and five minutes 4 °C sample
temperature.
From 24 °C (75 °F) to 4 °C (39 °F), 15 minutes
8837spc.fm