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Dedicated Water Level Data Loggers
Data Logger Configured with Water Level Sensor
KPSI
550 Water Monitor Depth & Temperature Recorder
|
Parameter
|
550
|
Units
|
Comments
|
|
LEVEL RANGES
|
|
Full
Scale Level Ranges (3)
|
10
through 692
(3 - thru 211)
|
ft
H2O
(m H2O)
|
vented gage
reference
|
|
Proof
Pressure
|
1.5
|
x
FS
|
0
|
|
Burst
Pressure
|
2.0
|
x
FS
|
0
|
MEASUREMENT ACCURACY |
|
Level
|
±0.05
±0.10
±0.01
±0.1
|
%FS TEB (1)
%FS TEB (1)
ft H2O
% of reading
|
Standard
for level ranges > 10 ft (3 m) H2O
for level ranges <= 10 ft (3 m) H2O
USGS OSW
compliant (4)
for level ranges <= 10 ft (3 m) H2O
for level ranges > 10 ft (3 m) H2O
|
|
Temperature
|
±1.0
|
șC
|
0
|
|
DATALOGGING SPECIFICATIONS
|
|
Modes of Samping
|
Linear, Linear Avg,
Event, Logarithmic
|
0
|
software selectable
|
|
Pressure Units Available
|
PSI, ft H2O,
mm H2O, cm H2O, m
H2O, kPa
|
0
|
user-specified also available by
entering slope and offset
|
|
Sampling Rate (2)
|
Programmable, 15 readings
per sec. max.
|
0
|
0
|
|
Internal Non Volatile Memory
|
2
|
Mbyte
|
0
|
|
Maximum Pressure Scans
|
196,560
|
0
|
Pressure with Time-Stamp
|
|
Maximum Pressure and Temperature
Scans
|
144,144
|
0
|
Pressure and Temperature with Time-Stamp
|
|
Time-Stamp Accuracy
|
±2
|
min/year
|
over the compensated temp range
|
|
Data Upload Time
|
100
|
scans/sec
|
(Pressure and Temperature with Time-Stamp)
per second @ 19200 baud
|
|
ENVIRONMENTAL
|
|
Wetted Materials
|
316 SS or Titanium; Viton
|
0
|
0 |
|
Compensated Temp Range
|
-10 to 40
|
șC
|
0
|
|
Operating Temp Range
|
-20 to 50
|
șC
|
0
|
|
Non Submerged Storage Temp
|
-40 to 80
-20 to 50
|
șC
|
without batteries
with batteries
|
|
ELECTRICAL
|
|
Internal Battery
|
2 each of 1.5 volt AA cells
|
0
|
Alkaline recommended
|
|
Battery Life
|
3
|
years
|
@ 15 minute sample intervals using industrial alkaline batteries
|
|
External Excitation
|
6-16
|
VDC
|
0
|
|
External Input Current
|
8.0
25.0
0.25
|
mA
mA
mA
|
average current during data acquisition.
15 mS peak current during scan page writes.
Quiescent.
|
|
Communication Interface
|
RS-485
|
0
|
3 volt p-p differential with selectable baud rates from 1200
to 19200
|
|
Protocol
|
SDI-12
|
0
|
ver 1.3 compliant
|
|
PHYSICAL
|
|
Approximate Weight
|
0.70 (318)
0.13 (57)
0.05 (79)
|
lbs (g)
lbs (g)
lbs/ft (g/m)
|
transducer with batteries
cable assembly less cable
cable
|
|
Cable
Jacket Material
Pull Strength
Number of Conductors
Conductor Size
|
Polyurethane
200 (90)
4
22
|
lbs (kg)
AWG
|
0
|
|
Cable Seal
|
Molded polyurethane
|
0
|
0
|
1) Total Error Band (TEB) includes the combined
errors due to non-linearity, hysteresis, non-repeatability and thermal
effects over the compensated temperature range per ISA S51.1.
2) For sampling rates greater than 3 Hz,
the pressure/temperature averaging must be reduced as required.
3) Intermediate level ranges are available.
4) Available for level ranges <=50 feet
(15m) only.
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