SPECIFICATIONS |
| STAGE
RANGE |
+/- 80 ft of the set value, 400 count per revolution |
| ENCODER |
Optical
encoder |
| CLOCK |
Internal
real-time clock w/battery backup
(coin cell with 5+ year life). +/-
2 minutes a month (0 to +50C). |
| RECORDING
INVERVALS |
15-minute
default, 1, 5, & 10 minutes user
selectable |
| DISCHARGE
CALCULATION |
Parshall
Flume & Broad Crested Weir Equations
plus general purpose equation with
user-selectable constants |
| VOLUME
TOTAL |
Daily
volume calculation & logging |
| DAILY
AVERAGE STAGE |
User
can select logging for daily average
stage at midnight. |
| LOG
CAPACITY |
Over
one (1) year of 15-minute stage data
w/ accompanying daily average of
discharge & midnight battery
voltage |
| LOG
WRAPPING |
PERMANENT
LOG wraps when full (oldest data
replaced by newest data). There is
NO mechanism to erase the log. |
| MODBUS |
Supports MODBUS slave protocol with user-set address & baud rate |
| OPERATOR
INTERFACE |
6-button
front panel w/ 2-line display & status
lights. Buttons select menu options. |
| DATA
DOWNLOADS |
Pocket
PC compatible PDA or laptop/desktop
Windows PC |
| AVAILABLE
DATA |
Station
name, date/time, current stage, current
discharge, current total, battery
voltage & logged values of the
stage & discharge, daily average
stage, average discharge & total
discharge. |
| CALIBRATION |
Front
panel/PC/PDA can be used to adjust
the current stage to match a staff
reading (optional password protection) |
| EVENT
LOG |
Any
stage or setup changes are written
to the event log |
| PASSWORD |
Can
be configured to require a password
for setup changes & stage adjustments |
| SETUP
DATA |
All
setup stored in non volatile flash
memory |
| DOWNLOAD
FORMAT |
Comma
separated variable (CSV) |
| DOWNLOAD
TIME |
Less
than 6 minutes, even for a 6-month
log |
| GRAPHING
DATA |
PDA & laptop
utilities provide data graphing |
| STATUS
LIGHTS |
2
on front panel – provide “heartbeat” and
run/error status |
| DRIVE
SHAFT |
5/16” diameter
with 1: threaded and milled flat
for set screw, shaft is 2.5” above
base. |
| SEALING |
NEMA
rated enclosure – resists dripping
water and spray |
| FLOAT
WHEELS |
Operates
with these diameters: 18 inch, 375
mm, 1 foot. |
| OPERATING
TEMPERATURE |
– 40° to
+60°C. LCD operates to –10°C. |
| CONNECTOR |
DB9
(female) for direct connection to
PC The DB9 provides +5V on pin 9
with a capacity of 71ma. Provides
a means to power external devices,
such as BlueTooth. |
| GROUNDING |
#8
ground stud with wing nut |
| SDI
OUTPUT |
One
set of connections for SDI-12 on
a terminal strip (available Fall
2005) |
| POWER
CONSUMPTION |
< 0.25
mA @ 12 VDC |
| BATTERY
CONNECTION |
Dual
battery connections on a terminal
strip & appropriate circuitry
to allow a new battery to be installed
before the old battery is removed |
| BATTERY
LIFE |
Operates
on 5.5 to 16 vdc
3 to 9 months on standard gel cells (7 ah to
24 ah)
9 to 15 months on various series configurations
of alkaline cells |
| BATTERY
VOLTAGE LOG |
Battery
voltage logged each day at midnight,
battery life indicator available
in display. |
| CLOCK
BACKUP |
A
coin cell backs up the internal real-time
clock. Battery life is 5+ years. |
| ORDERING |
SDR-0001-1 Stage
Discharge Recorder, Standard Unit,
battery cable included
SDR-0001-3 SDR w/Analog Input & 4-20mA outputs
The Analog Stage Discharge Recorder does not include a shaft encoder, which is ordered separately.
SDR-0001-4
SDR w/Analog Input, 4-20mA outputs, & shaft encoder
Includes a shaft encoder
Optional
5100-0040 Battery,
12VDC, 24 AH, sealed,
rechargeable lead-acid
5100-0530-2 Float,
6” PVC |
