10
Specifications
Factory Installed Options
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
Rain gauge input
General Information
For use with Tipping Bucket Rain Gauge. The Sampler
Program can be initiated upon field selectable rate of rain.
Sampler records rainfall data. Each tip = 0.25 mm (0.01in.) of
rain.
4–20mA output
General information Up to 2 output signals available. User assignable.
Maximum resistive load 600 ohms
Output voltage 24 V dc—no load
Insulation voltage
Between flow meter and 4–20 mA output—2500 V ac.
Between the two 4–20 mA outputs—1500 V ac.
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
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