WirelessWireless Multi-Parameter - Up to Sixteen (16) Channels.
Sensor Input; DO, TSS (MLSS), pH, ORP, Temperature
The Aysix Process Transmitter (PT2) multi-channel analyzer is a unique system that combines advanced electronics with the latest in wireless sensor technology. The analyzer will wirelessly communicate with up to sixteen (16) sensors and accepts any combination of DO, SS, pH, or ORP sensors (each also outputs temperature). The system allows for flexible and economical process monitoring and control. The system needs power, and the signal is sent wirelessly saving installation costs, cutting down on install time, and allows for flexible sensor placement.
The DO sensor does not need membranes, fill solutions,or replaceable sensor caps thus virtually eliminating maintenance. The SS sensor is based on near infrared technology, eliminating inaccuracies caused by changes in the process color. The pH electrodes are flat glass, double reference junction with temperature compensation. The ORP electrodes are flat glass, double reference junction. Both pH and ORP electrodes feature a quick disconnect design that makes changing electrodes a snap and reduces down time due to electrode maintenance. All sensors can be automatically self-cleaned which significantly reduces maintenance and increases sensor reliability.
The PT2 has an outdoor line of sight range of up to one mile. If the PT2 is mounted indoors, the closest sensor should be within 600 feet. The PT2 and its sensors form a ZigBee compliant RF network with self-healing mesh technology. This ensures trouble-free communications. This significantly reduces installation costs as the there is no need for interconnecting cable or conduit. The backlit display can be programmed to show one, two, four, eight, or sixteen sensor readings continuously. If only one channel is displayed a trend graph of the last twenty four hours for that sensor will also be displayed. All sensor status and readings can be sent to the SCADA system or to a PLC via the two wire RS485 ModBus output. Future upgrades to the software or firmware can be easily accomplished using a standard thumb drive in the provided USB port on the main circuit board. All programming and setup is performed at the PT2 keypad with a simple menu system that easy to understand and navigate.
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- General Specifications
|DO||0 to 25 ppm|
|SS||0 to 30,000 mg/l|
|pH||2 to 12 pH|
|Response Time||95% in less than 60 seconds|
|Sensor Check||Automatic self diagnostics|
|Memory Backup||All user settings stored in nonvolatile memory|
|Display||Backlit graphical LCD display with UV protection|
|Display||320 x 240 pixel resolution|
|Display||Viewing area 2.6 x 3.45 in (92 x 122 mm)|
|Display||Contrast adjustment via keypad|
|Display||Capable of continuously displaying all channels|
|Communications||ZigBee compliant RF with self-healing mesh technology|
|Temp. Range||Minus 20 degrees C to 70 degrees C|
|Humidity Range||0 to 100 percent|
|Input Power||100 to 240 VAC, 50/60 Hz, 1A 45 Watt (fused)|
|Enclosure Rating||NEMA 4X, IP65, Polycarbonate ABS|
|Approvals||FCC Part 15.247|
|Mounting||Handrail or surface Sunscreen recommended for outdoor mounting|
|Dimensions||9.25 x 9.0 x 4.5 inches (235 x 229 x 115 mm)|
SPECIFICATIONS FOR AYSIX MULTI-PARAMETER WIRELESS MONITORING AND CONTROL SYSTEM
PART I – PRODUCTS
1.0 GENERAL REQUIREMENTS:
A. The system shall be a multi-parameter system capable of mesauring up to sixteen channels of dissolved oxygen, suspended solids, pH, and ORP in any combination. It shall consist of the controller/base transmitter, sensors, sensor transmitters, and mounting hardware.
B. The controller/base transmitter shall have a fully integrated ZigBee Compliant radio-frequency transmitter capable of interconnecting all sensor transmitters into a local network that utilizies self-healing mesh technology.
C. The fluorescent DO sensor shall be a type that does not require membranes, cartridges, fill solutions, or replaceable membrane or sensor caps as these types of designs are not acceptable. The sensor shall not be damaged by exposure to direct or indirect sunlight nor will exposure to sunlight affect the calibration. The DO sensor body will have a built-in self-cleaning port to allow for air or water jet cleaning. No external tubes or fittings to implement self cleaning will be accepted.
D. The SS sensor shall be a type that will automatically compensate for ambient light and any process color changes. The sensor will use a 880 nanometer emitter. The sensor will automatically compensate for temperature variations. The SS sensor body will have a built-in self-cleaning port to allow for air or water jet cleaning. No external tubes or fittings to implement self cleaning will be accepted.
E. The pH electrode will be a flat glass, double reference junction with temperature compensation. The pH holder will have a built-in pre-amp and self-cleaning port to allow for air or water jet cleaning. No holder requiring external tubes or fittings to implement self cleaning will be accepted.
F. The ORP electrode will be a flat glass type of electrode. The ORP holder will have a built-in self-cleaning port to allow for air or water jet cleaning. No holder requiring external tubes or fittings to implement self cleaning will be accepted.
2.0 PRODUCT SPECIFICATIONS:
A. Controller / Base Transmitter
1- The controller shall be housed in a fiberglass NEMA 4X enclosure with brackets for wall or standard round handrail mounting.
2- It shall have a digital display controlled by microprocessor circuitry.
3- All run, programming, and calibration functions shall be accessible without having to open the enclosure.
4- Provide an extended temperature, UV treated LCD digital display for continuously showing all sensor readouts. Programming and diagnostics are also provided through this display.
5- Provide self-diagnostics for the sensor and analyzer. Analyzer shall have error messages in the operating mode for higher or lower than normal sensor output voltage, temperature input outside the 0-60 degree C range, and unstable instrument circuitry; error messages in the calibrate mode for unstable sensor temperature (after a 5 minute wait), unstable output of the sensor (after a 5 minute wait), and weak sensor output level.
6- Provide isolated RS-485 MODBUS RTU serial communication port for all sensors and relay status.
7- Provide as standard a back-lit LCD display.
8- Display dissolved oxygen in ppm. The accuracy of the DO reading will be +/- 0.05 ppm. The repeatability of the DO sensor will be +/- 0.02 ppm.
9- Display suspended solids in mg/l. The accuracy of the SS reading will be 3% of reading. The resolution will be;
1 mg/l if the reading is less than 1000 mg/l,
10 mg/l if the reading is between 1000 mg/l and 10,000 mg/l,
100 mg/l if the reading is over 10,000 mg/l.
10- Display pH from 2 to 12 pH with a resolution of 0.01 pH.
11- Display ORP from +2000 millivolts to -2000 millivolts with a resolution of 1 millivolt.
12- Power requirements are 100 to 240 VAC, 50/60 Hz
B. Sensor Transmitter
1- The Sensor Transmitter shall be housed in a fiberglass NEMA 4X enclosure with brackets for wall or standard round handrail mounting. It will be connected to the sensor via an integrated, shielded, four wire cable supplied with the sensor.
2- Provide an isolated 4-20 milliamp signal corresponding to the sensor reading.
3- Provide a programmable relay contact, rated 15A 125VAC – 10A 277 VAC, for use as an setpoint or alarm.
4- Provide a programmable relay contact, rated 15A 125VAC – 10A 277 VAC, for use as a controller for the self-cleaning function.
5- Power requirements are 100 to 240 VAC, 50/60 Hz