| Size (HxWxD): |
2.9 x 11.3 x 7.5 in. (7.4 x 28.7 x 19.1 cm) |
| Weight: |
2.4 lbs. (1.08 kg) |
| Material: |
High-impact molded polystyrene, stainless steel |
| Enclosure (self-certified): |
NEMA 4X, 6P (IP68) |
| Power Required: |
7 to 15V DC, typical operating current 60 mA at 12V DC, 0.3 mA standby |
| Typical Battery Life: |
*15 months (Level, temperature, and flow rate at 15-minute intervals; input voltage and total flow at 24 hour storage interval.) *Note: Using Energizer 529 alkaline batteries, discharged to a no load voltage of 4.2V DC per battery or 8.4V DC combined from the 2191 Battery Module. |
| Program Memory: |
Non-volatile, programmable flash; can be updated using PC without opening enclosure;retains user program after updating |
| Number of modules connected together: |
Up to 4, field interchangeable |
| Maximum distance between modules: |
3,300 ft. (1,000 m) |
| Wiring between remote modules: |
Twisted pair for communication, pair for power, gauge dependent on distance |
Level-to-Flow Rate Conversions
|
| Weirs: |
V-notch, rectangular, Cipolletti, Teledyne Isco Flow Metering Inserts, Thel-Mar |
| Flumes: |
Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H, HS, HL |
| Manning Formula: |
Round, U-shaped, rectangular, trapezoidal |
| Data Points: |
Up to 50 level-flow rate points |
| Equation: |
2-term polynomial |
| Total Flow Calculations: |
1 independent, net positive or net negative, based on flow rate conversion |
| Data Storage Memory: |
Non-volatile flash; retains stored data during program updates |
| Capacity: |
395,000 bytes (up to 79,000 readings, equal to over 270 days of level readings at 15 minute intervals, plus total flow and input voltage readings at 24 hour intervals) |
| Data Types: |
Level, flow rate, total flow, temperature, input voltage |
| Storage Mode: |
Rollover with variable rate data storage based on level, flow rate, total flow, or input voltage |
| Storage Interval: |
15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2, 4, 12, or 24 hours |
| Bytes Per Reading: |
5 |
| Setup and Data Retrieval: |
Serial connection to IBM PC or compatible computer with Teledyne Isco Flowlink Software (Version 5.1 or newer recommended) |
| Baud Rate: |
38,400 |
| Operating temperature: |
0° to 140°F (-18° to 60°C) |
| Storage temperature: |
-40° to 140°F (-40° to 60°C) |
Ultrasonic Sensor
|
| Enclosure: |
NEMA 4X 6P (IP68) |
| Length x diameter: |
3.08 x 1.9 in (7.8 x 4.8 cm) |
| Cable: |
32.8 ft x 0.3 in (10 m x 0.8 cm) |
| Weight (including cable): |
2.0 lbs (0.9 kg) |
| Level Measurement (@ 20-25°C, 30-70% RH, stable, non-stratified air) |
| Frequency: |
150 KHz, 95KHz |
| Cone Angle: |
8° |
| Range: |
*150 kHz - 4 to 72 in (0.1 to 1.8 m), 95 kHz - 12 to 144 in (0.3 to 3.6 m). *Note: Zero deadband possible for 150 kHz sensor only, when installed with horizontal mounting bracket. Minimum range specifications not guaranteed at maximum operating temperature. |
| Accuracy: |
The greater of ±0.013 ft. (3.96 mm) or ±0.0084 ft. (2.56 mm) per foot (0.305 m) from calibration point |
| Typical Temperature error: |
± the sum of 0.0042 ft. + 0.00012 ft. per degree from 68°F |
2191 Battery Module
|
| Size (H x W x D): |
6.0 x 9.6 x 7.6 in. (15.2 x 24.4 x 19.3 cm) |
| Weight (without batteries): |
3.2 lbs. (1.4 kg) |
| Material: |
High-impact molded polystyrene |
| Enclosure (self-certified): |
NEMA 4X, 6P (IP68) |
| Batteries: |
6V alkaline lantern or lead-acid lantern, quantity 2 |
| Capacity: |
25 Ahrs |
