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Specifications
Specifications
Integral pH Meter
Control/Logging
Field selectable to log pH independent of flow or in conjunction with flow; also controls
sample collection in response to value of low/high stipends
pH Sensor
Temperature compensated; impact resistant ABS plastic body
Combination electrode with porous Teflon junction.
Measurement Range 2 to 12 pH
Operating Temperature
Range
-18 to 80 °C (0 to 176 °F)
Dimensions 19.5 mm × 15.24 cm long (0.75 in. dia. × 6 in.) with 19.5 mm (0.75 in.) npt cable end
Rain Gauge Input
General Information
For use with Tipping Bucket Rain Gauge.
Flow measurement can be initiated upon field selectable rate of rain.
Flow meter records rainfall data.
Shielded cable, 100 ft length maximum
Each tip = 0.25 mm (0.01 in.) of rain.
Analog Input Channels
General Information
Up to 7 additional data logging channels record data from external source(s)
Four channels with -4.5 to 4.5 V dc input with 1 meg ohm input impedance on each
channel and three channels with 4–20 mA input.*
4–20 mA Output
General Information Two isolated output signals available. User assignable.
Maximum Resistive Load 600 ohms
Output Voltage 24 V dc—no load
Alarm Relays
General Information
4 intergral alarm relays; form C (common, normally open, normally closed), 5 amp.
Connection to instrument through terminal blocks.
Relay Contact Ratings 5 amps, (30–230 V ac)
Communications
General Information
RS-232—up to 19,200 baud
Modem—14400 bps., V.32 bis, V.42, MNP2-4 error correction. V.42 bis MNP5 data
compression. MNP 10-EC Cellular Protocol
Pager
SCADA–Modbus
®
communication protocol (standard) via RS232 or optional modem