Plastic housing

Dimensions: 24" x 1.8" dia
Weight: 2.2 lbs incl. batteries
Temperature range: 23 °F to 140 °F

Infrared-interface

For cable-free data-transmission

-	PC-Standard
-	for older notebooks/PCs without integral Infrared-interface, pluggable interface-adapters are available from OTT or in computer-equipment stores.

 
LC Display

1-line, 4 1/2 digits, height of figures: 0.5 in.

 
Ring-memory (EEProm)

for storage up to 11,200 measured values = 15 months data at 1-hr storage interval adjustable sampling and storage interval (5 min to 24 hr).

 
Measuring mode

Water level readings by Orphimedes can be set to equal dip meter readings or level measurements.

 
Absolute-pressure measuring-cell

Silicium DMS, piezo-resistive

Resolution by displaying in	m = cm mm = 5 mm ft. = 0.01 ft.
Accuracy:	better than 0.03 ft.
Measuring range:	42 ft. water column
Max. submerged depth = 50 ft. Max. tube length: 300 ft.

Mini-compressor

Maintenance free piston pump for compressed air, lifetime lubricated, valve-controlled.

 
6 V Power supply

(4 x 1.5 V standard C-cells)
for system operation up to 15 months at hourly measuring/storage interval (reference temperature 68 °F) and simple battery change without operation

 
Installation rope

- Serves to lower down Orphimedes into the well pipe (frost-free zone).

 
Kevlar rope

Age resistant, for accurate, length-stable positioning of the bubble chamber in groundwater.

 
Measuring tube (2 parts)

Consisting of:

-	flexible measuring tube (spiral type, 2 ft. length)
-	flexible measuring tube (straight type) incl. push-fit connector

 
Age-resistant pvc components inner dia: .08 in., outer-dia: .16 in.

 
Bubble chamber (groundwater)

standard for 1"-dia. and bigger