Hach 900 MAX, Instrument Manual

Page: 13 / 160

Specifications
Page 11
8990spc.fm
Specifications
Factory Installed Options
Intake Purge
Air purged automatically before and after each sample; duration automatically compensates
for varying intake line lengths.
Pump/Controller
Housing High impact injection molded ABS; submersible, watertight, dust tight, corrosion & ice
resistant; NEMA 4X,6.
Internal Clock Indicates real time and date; 0.007% time base accuracy.
Manual Sample Initiates a sample collection independent of program in progress.
Intake Rinse Intake line automatically rinsed with source liquid prior to each sample, from 0 to 3 rinses.
Intake Retries
Sample collection cycle automatically repeated from 0 to 3 times if sample is not obtained on
initial attempt.
Intake Tubing ¼ in. and
3
/
8
in. ID vinyl or
3
/
8
in. ID Teflon* lined polyethylene with protective outer cover.
Intake Strainers
Choice of Teflon
®
and 316 stainless construction, and all 316 stainless steel in standard size
and low profile for shallow depth applications.
pH/Temperature/ORP Meter
Control/Logging
Field selectable to log pH/temperature or ORP independent of sample operation or to control
sample collection in response to volume exceeding low/high setpoints.
pH/Temperature Sensor
Temperature compensated; impact resistant ABS plastic body
Combination electrode with porous Teflon junction
Measurement Range 0 to 14 pH, -10 to 105 °C
Operating Temperature -18 to 80 °C (0 to 176 °F)
Dimensions 1.9 cm dia.
×
15.2 cm long (0.75 in.
×
6 in.) with 1.9 cm (0.75 in.) mpt cable end
Dissolved Oxygen Meter
Control/Logging
Field selectable to log dissolved oxygen independent of sampler operation or to control
sample collection in response to volume exceeding low/high setpoints.
Measurement Method Galvanic
Sensor Temperature compensated; impact resistant polypropylene body
Measurement Range 0 to 20 mg/L
Resolution 0.01 mg/L
Accuracy ±3% of reading or 0.1 mg/L
Operating Temperature 0 to 50 °C (32 to 122 °F)
Dimensions 1.7 mm diameter
×
15.7 cm long (0.65 in.
×
6.25 in.) with 1.9 cm (0.75 in.)
Conductivity Meter
Control/Logging
Field selectable to log conductivity independent of sampler connection or to control sample
collection in response to volume exceeding low/high setpoints.
Sensor Temperature compensated; impact resistant polypropylene body
Measurement Range 0 to 20 mS/cm
Resolution 0.01 mS/cm or 1 mS/cm
Accuracy ±2% of reading or 0.01 mS
Operating Temperature 0 to 50 °C (32 to 122 °F)
Dimensions 1.7 cm diameter
×
15.2 cm long (0.67 in. x 6 in.) with 1.9 cm (0.75 in.) mpt cable end