| Measuring ranges |
0-4 m, 0-10 m, 0-20 m, 0-40 m, 0-100 m water column |
| Pressure Sensor |
Ceramic capacitive sensor - vented presssure sensor |
| Resolution, pressure sensor |
0.01 % FS |
| Accuracy, pressure sensor |
|
| Overall |
± 0.05 % FS |
| Repeatability |
± 0.05 % FS |
| Long term stability |
± 0.1 % FS/a |
| Temperature coefficient |
± 0.005%/Kelvin |
Burst pressure
Overload pressue |
> 5 times FS
> 5 times FS |
Temperature Sensor
Measuring range temperature
Resolution temperature
Accuracy temperature |
-25 °C +70 °C (ice-free)
0.1 °C
± 0.5 °C |
| Power supply |
3 x 1,5 V LR6-cells Alkaline- or Lithium-type |
|
Lifetime (at 1 h reading interval)
|
|
with Lithium batteries
with Alkaline batteries |
min. 5 years
min. 1.5 years (high quality battery types) |
|
Operating Conditions
|
|
| Operating Temperature |
-20 ... +70 °C |
| Humidity |
100 % |
| Temperature-compensated |
|
| working range (pressure reading) |
–5 °C ... +45 °C (ice-free) |
| Storage temperature |
–40 °C ... +85 °C |
Data Logger
Interface
AD converter |
Infrared (IrDA)
20 bit |
Memory
Number of measured values |
4 MB non-volatile
approx. 500 000 |
Reading interval
Storage interval
Logging type - selectable |
1 second 24 hours
1 second 24 hours
linear, logarithmic - free progammable (logging table) for pumping tests , event triggered delta data logging |
Installable in well pipes
with adapter plates for OTT top caps |
1', 2', 4', 6' |
| with universal suspension bracket |
from 1' |
| Settling-up time |
Immediately |
Dimensions
Communication unit L x Ø
Pressure probe L x Ø |
400 mm x 22 mm
195 mm x 22 mm |
System length
(cable length incl. communication unit/pressure probe) |
1 ... 200 m ± 0,25 m |
| Material of casing |
ABS,POM, 904 L (DIN 1.4539) |
Weight
Communication unit (incl. batteries)
Pressure probe |
approx. 0,410 kg
approx. 0,300 kg |
Type of protection
Communication unit
|
IP 67 (immersion depth max. 2 m
duration of immersion max. 24 h)
|
| Pressure probe |
IP 68 |
