Hydro Services Point Velocity Display

• Direct Velocity Reading
• Digitally processes and ‘cleans’ signals from Catwhisker and Magnetic Head Meters
• Operates with two ‘AA’ batteries
• Works in high conductivity water( > 50,000μSiemens)
• Self contained unit with 2 x 8 character LCD display showing total meter counts and elapsed time
• Integrated Bluetooth Interface and RS232 Interface
• Also operates with any Palm, PocketPC, or Field Computer.
• Uses simple single character commands for operating modes and setting
• Signal Driver for AquaCalc(s), Sutron DMX and Hydrological Services CMC Series Meter Counters
• Fully compatible with USGS QCALC Discharge Measurement

Software
• Fully self calibrating
• ‘Self Test’ for Serial Interface setup
• Can be used to adjust Current Meter contacts (measures meter ‘Dwell Angle’)
• Can display and produce ‘Spin Test’ record
• Selectable 10 second to 90 second fixed measuring intervals; default is 40 seconds
• ‘Starts’ and ‘Ends’ measurement on a meter contact closure
• Total Counts to 999, Total Time to 999.9 seconds
• Range of Measurement from < 0.05 ft/sec to > 50 ft/sec (magnetic head meters)
• Continuous measuring mode (no time limit)
• Low battery indication
• Automatically indicates fault conditions

OPERATION
PVD100 can simultaneously produces four responses:
1) Sounds a buzzer tone;
2) Emits a flash from an LED indicator on the front panel,
3) Updates the LCD count and timer, and
4) Transmits a serial data value at 1-second intervals representing the number of contact closures and elapsed time through the serial interface.

The PVD100 uses two AA batteries for operation and is connected between the current meter and the hand-held computer using either a connecting lead or an optional Bluetooth wireless interface. A program running in the hand-held computer sends commands to the PVD100 to perform a measurement.

SPECIFICATIONS
Bluetooth Class 2 Output power 2.5mW (4dBm)
Compliant Bluetooth Spec V1.1
Up to 30ft (10m) range (operating at 2.4GHz)
Communications RS232 Port (Tx, Rx) @ 19200 baud 8/N/1

Indicators: 8 character x 2 line LCD, 1 x Orange LED, 1 x Red/Green/Blue LED
Power Source: 2 x Internal AA alkaline 1.5V batteries
Low battery indication: 2.8V
Dimensions: 90mm x 120mm x 55mm (L x W x D)
Weight: 218 grams (with batteries)
Environmental: -20oC to + 70oC, Non Condensing (Splashproof – IP65 rating)

Maximum Conductivity: > 50,000 μSiemens (max velocity ranges must be derated 20%)

Contact time to Fault Detection (absolute maximum)
(Normal Mode) Magnetic Head Contact 11 Secs
Cat Whisker Head Contact 7 Secs
(Slow speed Mode) Magnetic Head Contact 30 Secs
Cat Whisker Head Contact 20 Secs
Minimum dwell angle for 10o
Cat Whisker Head
Signal Output driver pulse Normal mode: 100mS, active high to low pulse (FET open drain O/P) Slow mode: 1 Sec, active high to low pulse (Fixed width)

Ordering Information:
PVD100