Alpha pH 2000 pH/ORP Controller/Transmitter
- Choice of Mounting Options Mounting options to suit individual needs
- Warranty This product comes complete with a one year warranty
- Choice of Modes User can choose between measuring modes to achieve the most accurate results
Overview
The Eutech Alpha 2000 pH/ORP Controller/Transmitter is intuitive whilst being user friendly. It has been designed and built for use in rugged industrial environments, it has been cased in an IP65 NEMA 4X casing which provides weatherproof and corrosion-resistant protection against harsh elements. The Alpha 2000 has symmetrical mode of operation as standard which is the perfect solution for use in electrically noisy environments. To take full advantage of this feature the user must have an electrode with a solution ground (potential matching) pin. If this is not the case and the electrode does not have a solution ground the meter must be set to Asymmetrical mode. A wide pH range of -2.00 to 16.00 pH is delivered to two decimal accuracy and when set to ORP mode measurements are in mV or % concentration with independent calibration modes.
This user friendly controller/transmitter alerts the user when the meter or electrode requires maintenance and provides all the necessary trouble-shooting prompts that will ever be required. After each calibration the meter displays the electrode status whilst the quick, easy push button calibration is complete with auto-buffer recognition. A helpful feature for ease of use is the ability to control and measure pH and ORP simultaneously with the use of 'master-slave' operation this is achieved by placing two controllers side by side.
The Alpha pH 2000 pH/ORP Controller/Transmitter has the option of being used in Asymmetrical or Symmetrical modes the difference is:
Asymmetrical
This is the optimum choice for working in environments where there is little or no electrical noise. In environments where electrical noise is present the noise acts as a common signal and is picked up by both the pH and the reference electrodes. However, since the reference electrode is grounded to the ground potential of the amplifier, electrical noise will be present only on the pH electrode, this noise in turn will be amplified along with the pH signal casuing reading fluctuations in an electrically noisy atmosphere. Electrical noise from a DC source (as in an electroplating tank) will typically result in stable but incorrect values.
Symmetrical
Symmetrical mode works by avoiding grounding the reference electrode by reconfiguring the input to a floating differential mode. The result of this is electrical noise appears equally on the pH and reference electrodes and is in turn rejected by the operational amplifier.
Manufactured by: Eutech InstrumentsModel: Alpha pH 2000 pH/ORP Controller/Transmitter
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
Applications
General
Use for virtually any batch or online applications where rapid, accurate control is required. Great for OEM/system integrator
Industrial
Use in applications involving agriculture, chemical processing, boiler and water heaters, water-fab, microprocessor manufacturing, pharmaceuticals, pulp and paper industries and bleach manufacturing
Regulatory
Hook to recorder to document data for regulatory compliance
Water Purification/Treatment
Use to treat batches of incoming process water, ultrapure water, boiler and feed water control
Specification
| pH | |
| Range | -2.00 to 16.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| ORP | |
| Range | -1000 to 1000 mV / 0 to 100 % |
| Resolution | 1 mV / 0.1 % |
| Accuracy | ±1 mV / ±0.2 % |
| Temperature | |
| Range | -10.0 to 125.0 °C / 14.0 to 257.0 °F |
| Resolution | 0.1 °C / 0.1 °F |
| Accuracy | ±0.5 °C / ±1.0 °F |
| Sensor | Pt100 / Pt1000 (jumper selectable); 2 or 3 wire |
| Compensation | Auto/manual (independent process/CAL temperature) |
| Set Point and Controller Functions | |
| Set Point 1 (SP1)/ Set Point 2 (SP2) | -2.00 to 16.00 pH or -1000 to 1000 mV or 0 to 100 % |
| Switching pH Hysteresis | 0.1 to 1 pH |
| Switching ORP Hysteresis | 10 to 100 mV or 1 to 10.0 % |
| Function (Switchable) | P/PI control (pulse length/pulse frequency/proportional integral); limit control; off |
| Adjustable Period with Pulse Length Controller | 0.5 to 20 sec |
| Adjustable Period with Pulse Frequency Controller | 60 to 120 pulse/min |
| Integral Action Time (IAT) | 0 to 999.9 min |
| Pickup/Dropout Delay | 0 to 2000 sec |
| Wash Cycle | 0.1 to 200.0 hr |
| Wash Duration | 1 to 2000 sec |
| Contact Outputs | 1 SPDT, 3 SPST relays |
| Switching Voltage / Current / Power | 1/8 HP: at 125 VAC / max. 0.74 A / max. 93 VA 1/8 HP: at 250 VAC / max. 0.37 A / max. 93 VA |
| Alarm Functions | |
| Function (Switchable) | Steady or fleet (pulse) |
| Pickup Delay | 0 to 2000 sec |
| Switching Voltage / Current / Power | 1/8 HP: at 125 VAC / max. 0.74 A / max. 93 VA 1/8 HP: at 250 VAC / max. 0.37 A / max. 93 VA |
| Electrical Data and Connections | |
| Transmitter Function | Two 0/4 to 20 mA scalable outputs for pH/ORP and temperature, galvanically isolated |
| CU22 Function | 22 mA current output |
| Isolated Output Voltage | 12 V ±0.5 V (max. 50 mA) |
| Hold Function Switch | To freeze output current and deactivate control relays |
| Load | Max. 600 Ohm |
| pH / ORP Input | BNC (1012 impedance); asymmetrical/symmetrical |
| Connection Terminal | 3-pin, 8-pin, 9-pin & 13-pin terminal, detachable blocks (For TSPHCTP2000W) 3-pin, 9-pin & 19-pin terminal, detachable blocks (For TSPHCTP2000P) |
| Display | |
| LCD | UV coat, backlit 14 segments display with symbols for status information |
| Backlight | On/off selectable with four levels of brightness control |
| Power Supply | |
| Input | 80 to 250 VAC/DC ; 50/60 Hz ; 10 VA |
| Main Fuse | 250 mA, anti-surge, S504 Bussmann |
| Pollution Degree | 2 |
| Transient Overvoltage Category | II |
| EMC Specifications | |
| Emitted Interference | According to EN 61326 |
| Immunity to Interference | According to EN 61326 |
| Environmental Conditions | |
| Operating Temperature Range | 0 to 40 °C |
| Max. Relative Humidity | 80 % up to 31 °C decreasing linearly to 50 % at 40 °C |
| Mechanical Specifications | |
| Dimensions (WxHxD) | 144 x 144 x 110 mm (For TSPHCTP2000W) 96 x 96 x 175 mm (For TSPHCTP2000P) |
| Weight | 745 g (unit) / 1100 g (packed) (For TSPHCTP2000W) 550 g (unit) / 950 g (packed) (For TSPHCTP2000P) |
| Ingress Protection | IP66 (NEMA 4X) (For TSPHCTP2000W) IP54 (front panel) (For TSPHCTP2000P) |