Hach 900 MAX Instrument Manual page 14

Specifications
Rain Gauge Input
General Information
Analog Input Channels
General Information
4–20 mA Output
General Information
Maximum Resistive
Load
Output Voltage
Insulation Voltage
Alarm Relays
General Information
Downlook Ultrasonic Sensor 40 kHz
Accuracy
Maximum Range
Deadband
Material
Cable
Submerged Pressure Transducer
Material
Cable
Cable Length
Sensor Dimensions
Maximum Range
Maximum Allowable
Level
Operating Temperature
Range
Compensated
Temperature Range
Air Intake
Page 12
Specifications
For use with the 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.
Up to 3 additional data logging channels record data from external source(s)
Field assignable units
-4.0 to +4.0 V dc and 0 to 20 mA
Up to 2 output signals available.
User assignable
600 ohms
24 V dc–no load
Between flow meter and 4–20 mA output—2500 V ac
Between the two 4–20 mA outputs—1500 V ac
(4) 10 amp/120 V ac or 5 amp/220 V ac form C relays
±0.1% FS Error
User assignable for any internal or external data channel or event.
0.003 m (±0.01 ft)
3.35 m (11 ft) with a 3.05 m (10 ft) span
38 cm (15 in.) maximum, self-minimizing
PVC housing with Buna-N acoustic window
4 conductor with integral stainless steel support cable
Epoxy body with stainless steel diaphragm.
Polyurethane sensor cable with air vent.
7.6 m (25 ft) standard; 76 m (250 ft) maximum
2 cm H x 3.8 cm W x 12.7 cm L (0.8 in. x 1.5 in. x 5 in.)
5 psi, 0.063 to 3.5 mm (0.018 to 11.5 ft)
15 psi, 0.063 m to 10.5 m (0.018 to 34.6 ft)
3x over pressure
0 to 71 °C (32 to 160 °F)
0 to 30 °C (32 to 86 °F)
Atmospheric pressure reference is desiccant protected.
8990spc.fm