Hach - Open-Channel Flow Meters

   Hach Company
   PO Box 389
   Loveland, CO 80539

   800-227-4224
   970-669-3050

Open-Channel Flow Meters

Sigma Open Channel Flow Meter Model Guide

(links to individual products are below table)

Open Channel Flow Meter Model Guide
PRODUCT:	910	911	920	930	940	950	950 AV	950 Opti-Flow	950 Opti-Flow AV	980	980 AV
FEATURE:
Portable/Field	�	�	�	�	�	�	�	�	�
Permanent			�	�		�	�	�	�	�	�
Interface via computer	�	�	�	�	�	�	�	�	�	�	�
User Interface: keypad + LCD						�	�	�	�	�	�
Data Transfer Unit	�		�	�		�	�	�	�	�	�
Battery Life (in days) @ 15 minute intervals**	60	65	90	365	365	150	150	150	150
AC Power Capability			�		�	�	�	�	�	�	�

Level/Flow Measurement:

1 level only channel						�		�		�
1 level and/or velocity channel	�	�					�		�		�
2 level and/or velocity channels			�		�
3 level and/or velocity channels				�

Bubbler						�	�	�	�
Submerged Pressure	�	�	�	�	�	�	�	�	�		�
Ultra Sonic			�	�	�	�	�	�	�	�	�
Area Velocity	�	�	�	�	�		�		�		�
Intrinsic Safety		�			�
NEMA 6P	�	�	�	�	�
NEMA 4X,6						�	�	�	�
NEMA 4X (IP66)										�	�

Optional Features

pH/Temp Only						�	�	�	�	�	�
pH/Temp/ORP						�	�	�	�
DO/Conductivity						�	�	�	�
Rain Gauge			�	�		�	�	�	�	�	�
4-20 mA Outputs						�	�	�	�	�	�
Alarm Relays						�	�	�	�	�	�
Analog Inputs						�	�	�	�	�	�
RS-232	�	�	�	�	�	�	�	�	�	�	�
Modem (USA, CA)			�	�	�	�	�	�	�	�	�
Sampler Pacing		�	�	�	�	�	�	�	�	�	�
Mechanical Totalizer						�	�	�	�
** May be affected by site conditions.