Instruction Manual

AMBIENT TEMPERATURE RANGE:
32°F (0°C) to 140°F (60°C)
HOUSING CONSTRUCTION
Fully gasketed heavy-duty ABS for splashproof and corrosion
resistance.
Rated IP64/NEMA 3
Double Insulated (with circuit board ground for OEM operation)
DOUBLE INSULATED
DIMENSIONS
AQUASWITCH I:
6" (152mm) H x 4.8" (122mm) W x 3.8" (97mm) D
AQUASWITCH II:
6" (152mm) H x 10.8" (274mm) W x 3.9" (99mm) D
SHIPPING WEIGHT
AQUASWITCH I: 3 Ibs. (1.36 kg.)
AQUASWITCH II: 5 Ibs. (2.27 kg.)
ALARM RELAY CONTACT RATING:
SPDT 10 amp @ 250 VAC (Non-Inductive), 30 VDC
2. AQUASWITCH II
RANGES
7 Resistivity ranges from 0-200KΩ to 0-20MΩ
14 Conductivity/TDS ranges from
0-1µS/µM/ppm to 0-100µS/µM/ppm
Refer to Range Selection Guide on Page 8.
DISPLAY
1/2" (13mm) 3 1/2 digit LCD. (Optional 3 1/2 digit back lit LCD)
ACCURACY
+ 1 % of Full Scale
SENSITIVITY
0.05% of span
STABILITY
0.05% of span
REPEATABILITY
0.1% of span
CALIBRATION CHECK
Built in full scale value
RECORDER OUTPUT
0-10 VDC @ 5mA max. (linear); standard on all models
OUTPUT IMPEDANCE
100Ω ±5%
SENSOR INPUT
Resistivity — 1 CS10 sensor
Conductivity/TDS — 1 CS51LC sensor up to 0-10
1 CS51 sensor above 0-10
CONTROL FUNCTION
Models ASIIC & ASIIR:
Single set point alarm/control continuously adjustable
0-100% of span
Hysteresis
Adjustable from 0.3-3% of full scale
Indicators
"HIGH" (red) and "LOW" (green) set point LEDs - reversible.
Relay Contact Rating
SPDT 10 amp @ 250 VAC, 30 VDC. Relay operates
increasing or decreasing reading (user selectable).
Solid State Output
24VDC unregulated, 30mA Maximum.
Powers optional PA - Piezo Electric Alarm, Remote Alarm -
RA™, or indicator of your own choosing.
C. OPTIONAL FEATURES
-4A 4-20 mA Isolated output (ASII)
-PA 70 db Piezo Electric Alarm (ASII)
-PAT Piezo Alarm & Timer Module (ASII)
-35BL 3 1/2 digit backlit LCD (ASII)
-PC 115 VAC Powercord (8 ft. with USA plug and strain
relief) - NOT for use with 230 VAC.
-24VA 24 VAC isolated power supply (special order)
-24VD 24 VDC isolated power supply (special order)
-PTS Panel mounted Full Scale Test Switch ((ASII -
special order)
D. ACCESSORIES (ordered separately)
4AO 4-20 mA Isolated output
PAO 70 db Piezo Electric Alarm ONLY (ASII)
35BLO 3 1/2 digit backlit LCD (ASII)
PCO 115 VAC Powercord (8 ft. with USA plug and strain
relief) - NOT for use with 230VAC.
SMP50 Surface Mounting Plate
RA Remote Alarm - RA™ (ASII)
VR Powersupply, 24VAC, 20VA (115VAC, indoor use)
CS-11 20 Megohm sensor substitute (NIST Traceable)
CS-14 2 Megohm sensor substitute (NIST Traceable)
CS-17 200 Kilohm sensor substitute (NIST Traceable)
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