Model 2031/2135 series
Electronic Flowmeter and Readout
The model 2135 readout is a real time hand held microprocessor
controlled data acquisition unit. When used in conjunction with our
flowmeter sensor, this battery operated waterproof unit displays current
velocity in cm/sec, ft/sec. m/sec, or knots. The easy-to-read two line
liquid crystal display also gives you total distance traveled. The microprocessor based unit provides an event timer
with external start/stop freeze display switch.
The 8 oz. flowmeter sensor Model 2031H is made of rugged non-corrosive
materials, measures flow rates from 2cm/sec to 7.9 m/sec, is
self-orienting and has unlimited depth capabilities. Optional 128k memory,
RS-232 and software for data recording.
2031H Series Electronic Flowmeter
Weight in Air: 225 grams (8 ounces).
Weight in Water: 113 grams (4 ounces)
Materials: Celcon rotor. Nickel-plated brass nose cone.
Polycarbonate body. Armaloyed stainless steel main rotor and idler gear
shafts.
Dimensions: 21.3 cm (8 3/8") overall length.
Standard rotor diameter: 6.98 cm (2 3/4").
Low-speed rotor diameter: 16.5 cm (6 1/2").
Depth Rating: Unlimited (free flooding).
Data Readout: Six 10-digit counter wheels reading 000000
to 999999. Ten counts per rotor revolution, non-resetting. Read by noting
difference in beginning and end readings. (counter advances through
000000).
6-Digit Full Scale Counter: 999999 counts equals
approximately 14.5 nautical miles.
Mounting: Universal bridle allowing single-point
connection for towing or two-point connection within net mouth.
Response with Standard Rotor (Model 2031H) Threshold:
Approximately 10 cm/sec (1/5 knot).
Range: Approximately 10 cm/sec (1/5 knot) to 7.9
meters/sec (15 knots).
Response with Optional Rotor (Model 2031HR6) Threshold:
Approximately 6 cm/sec (3/25 knot).
Range: Approximately 6 cm/sec (3/25 knot) to 100 cm/sec
(approximately 6 knots).
Standard Order (2031H series)
Standard order of Model
2031H series electronic flowmeter includes rotor
(specify standard or low-speed rotor), universal bridle and "pigtail"
(short length of cable and underwater connector for connection to readout
cable). Order readout (Model 2135) additionally.
Model 2135 Data Readout
Weight: ..45
Kg (1 lbs) . Batteries included
Dimensions: Height - 22.8 cm (9.0 in.), Width - 11.4 cm
(4.5 in.), Depth - 4.4 cm (1.75 in.)
Data Readout: .
Velocity‑ 0 to 9999 m/sec, cm/sec, ft/sec or Knots
Distance-Accumulative to 65,635 meters**
Elapsed Timer – to 9 hours, 59 Minutes, 59 seconds
Operating Temperature ‑ 0 to 50 Degrees Celsius
Accuracy‑ +/‑ 1% Full Scale
Weight‑ .45 Kg (1 lb) . Batteries included.
Dimensions -Length: 23.3cm (9.2 in)
‑ Width: 11.5 cm (4.5 in)
‑ Depth: 4.5 cm (1.75 in)
Display‑ Two line, 32 character, high contrast super twist LCD
Enclosures – Standard water resistant (NEMA 4) ABS housing.
Memory ‑ 256 kilobytes (optional). Approx. 200,000 readings.*
Battery Supply ‑ Four 1.5 volt AA Manganese‑alkaline batteries.
(Duracell MN‑1500 or equivalent.) Minimum of 150 hours of continuous use.
Memory Option:
"F" RAM capable of storing approximately 200,000 samples. Includes Flow-Soft
software.
Enclosure:
Waterproof
(NEMA 4) ABS housing (nylon shoulder strap included)
Power:
Four
1.5 volt AA Manganese-alkaline batteries. (Duracell MN-1500 or equivalent.)
Approximately 300 Hrs. of continuous use
Download a Manual download/2135electflmtrmanl.pdf
Standard Order
Standard order of 2035MK4 includes batteries, shoulder strap and one
10-meter (33-foot) 3-conductor cable.
Extensions available; order 10-,
20-, 30-, 40-, or 50- meter lengths (33, 66, 98, 130 or 164 foot).
Underwater pressure housing option
A waterproof housing (Model 2135PC) is available for use by divers or ROV interfacing. With the exception of the RS232 interface port, all functions of the 2135 are accessible when used in this manner. This option includes a pressure housing rated to 100 psi (225 ft.), and an interface cable to mate to the flow meter. Left and right hand handles make this unit easy to use and maneuver.
Modifications to the 2135 are NOT necessary thus making it available for surface use when not required underwater.
Model 2135 Applications:
Storm water Discharge, Wastewater Treatment, Laboratories, Aquaculture and
Aquariums, Industrial Processes, Paper and Pulp Discharge, Groundwater,
Power Generation, Building Services, Environmental Impact Studies.

3 to 9 ft. Return to the Product Catalog