Transcript
MODEL H-3553T BUBBLER/PRESSURE SENSOR
The WaterLOG® model H-3553T is a combined constant flow Bubbler with built-in NIST traceable pressure sensor. Directly measure dry gas with high accuracy with this complete bubbler system. It is a complete single unit replacement for nitrogen gas purge bubbler systems. This model provides the highest purge pressure in the industry—up to 90 PSI. APPLICATIONS Accurately measure stream, lakes, wells, ocean and waste water levels. KEY FEATURES • Accuracy over temperature range exceeds ±0.01 ft. (3 mm) of water in a 15 PSI unit • Measures depths up to 115 ft (35 m) with a 50 PSI calibration • Temperature and atmospheric pressure compensated • Auto purge / purge sustain option • SDI-12 output provides data in user-defined units • Simple RS-232 Menu Interface
D43-03 0615
• Standard mode outputs: SDI-12, 4-20mA, RS-232 • Optional outputs: 0-5V and quadrature • Low current operation (6mA standby) • Extended SDI-12 commands for setting the stage to the current water elevation or pressure • Optional Display
H-3553T Shown with optional display
SPECIFICATIONS Material
PERFORMANCE Accuracy
Pressure
Less than or equal to 0.02% of full scale output (FSO) over temperature range
Pressure Hysteresis
Less than 0.01% of FSO
Linearity
Less than 0.02% deviation
Temperature
Internal ±1° C over temperature range
Long-term Stability
Drift is less than ±0.05% of FSO per year
Range
Bubbler Gas Delivery
Purge Functions
Compressor
General
Fiberglass
Atmospheric Vent
Sintered bronze, #10-32
Voltage Input Power Requirements Current
10.0 to 16.5 V DC Standby: 6mA Compressor Active, No Pressure: 3 A Compressor Active, Full Pressure: 6 A
Standard Pressure Ranges are 15 PSI and 30 PSI Custom calibration ranges available
Resolution
Housing
Pressure
1 part in 1,000,000 (0.0001%)
Temperature
1 part in 1,000,000 (0.0001%)
Pressure
Depth
Accuracy
0 to 15 PSI
0 to 34.6 ft (10.54 m)
±0.007 ft (2.1 mm)
0 to 30 PSI
0 to 69.20 ft (21 m)
±0.014 ft (4.26 mm)
Startup Surge Required: 15 A
Surge Protection
Connection
7-pin Circular Military Connector 3-pin Circular Military Connector Cables
Connectors Pressure Inlet
Microprocessor controlled unit
Based on a 60 bubbles/min flow rate with a 15 min measurement cycle and a 1 purge/day frequency. Average active current 20mA 20 V DC
Power, SDI-12, 4-20mA and RS-485
RS-232 Data and Menu Setup Port
Main Connector Cable with 6 ft. (1.8288 m) pigtail provided. RS-232 Connector cable optional. Sealed Bendix type circular 1/8” (3.81 cm) female NPT
COMMUNICATION
Gas Flow Technology
Constant mass Technology
Gas Flow Control
Bubble rate is user programmable from 30 to 120 bubbles per minute based on 1/4 in. (6.35 mm) tubing. Auto zero error controlled flow nozzle
SDI-12
Baud Rate Protocol
Baud Rate
1200 SDI-12 V1.3, 7-bit even parity, 1 stop bit Minimum high level: 3.5 volts Maximum low Low: 0.8 volts 8-second measurement sequence (programmable) Programmable (default = 9600)
Protocol Baud Rate Protocol Type Loop Voltage Resolution
Modbus RTU/H-355 Control 9600 RS-232, 8-bit, no parity, 1 stop bit 4-20mA, optically isolated 8.0V min, 35V max +- 0.24 uA (16-bit DAC)
Output Voltage Levels Response Time
Purge Pressure Level
User Selectable 30 PSI to 90 PSI
Options
• Manual • SDI driven purge • Purge sustain option (10-30S) • Automatic/programmable
RS-232
Type
Piston Compressor
4-20mA Output
Operation
Low duty cycle (7 hours typical runtime per year at 60 bubbles per minute into 12 ft. (3.65 m) (purges not included)
ENVIRONMENTAL
RS-485
Pressure Overload
Less than 2 times the rated pressure
Media Capability
Non-corrosive dry gases only
Rating
NEMA 4 enclosure
General
Operating Temperature Compensated Range Storage Temperature
-40° to 60° C -40° to 60° C -60° to 80° C
MISCELLANEOUS
MECHANICAL / POWER
Warranty
Size
Housing
10.5 in. L x 9 in. W x 6.3 in. H 266.7 mm L x 228.6 mm W x 160 mm H
Weight
Housing
9.5 lbs (4.3 kg)
Note
YSI—WaterLOG 1700/1725 Brannum Lane Yellow Springs, Ohio, 45387, USA Tel: (435) 753-2212 Fax: (435) 753-7669
[email protected]
The WaterLOG® H-3553T is warranted against defects in materials and workmanship for two years from date of shipment. Specifications subject to change without prior notice due to on going commitment to product testing and improvement. LR June 2015 (D43-03 0615)
www.waterlog.com
