Industrial Process Controllers & Monitors
alpha-pH190 1/8 DIN pH/ORP Controller with Temperature Display and Transmitter
alpha pH190 with improved user interface enables user to gain direct access to calibration mode with CAL key and allows quick set point adjustment with SP1 and SP2 keys.
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Quick Set Point Adjustment - SP1 and SP2 keys allow user to adjust set points easily
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Direct Access to CAL Mode - enables user to enter calibration mode with a simple key press
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User-Customisation with scrolling, 14-Segment LED - intuitive user interface guides user easily through setup functions
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Symmetrical Mode Operation eliminates electronic noise problems when used with solution ground
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Galvanically Isolated 4-20 mA Output for remote monitoring or hardcopy recording
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Universal Power Supply Input from 85 to 250 VAC/DC allows use at multiple sites and withstands voltage fluctuations
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Automatic Temperature Compensation with 3-wire Pt 100 system ensures accurate readings under fluctuating temperatures
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Adjustable Hysteresis (Dead Band) prevents rapid contact switching near set point
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Non-Volatile Memory retains all stored parameters and calibration data even if power fails
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Easy Installation and Wiring with detachable plug-in connectors
E-Brochure
Instruction Manual
Applications:
General: Ideal for virtually any batch type application where pH or ORP control or adjustment is needed. Use as ORP monitor for ozone systems and general purpose pH monitor for all types of water treatment and chemical processes.
Aquaculture: Use for pH or ORP control in fish ponds and tanks.
Industrial: Use to treat batches of incoming process water, rinse water treatment, recirculating system and wastewater treatment. Suitable for pH or ORP control of plating tanks and chemical processing tanks. Ideal for low cost monitor with alarms for batch and process applications. Perfect for wastewater neutralization in small and medium sized batches.
Specifications:
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Product Specification
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Description |
| pH Range |
0.00 to 14.00 pH |
| Resolution & Accuracy |
0.01 pH & ±0.01 pH |
| mV Range |
-999 to 1000 mV |
| Resolution & Accuracy |
1/ ±2.0 mV |
| Temperature Range |
-10 to 110 °C |
| Resolution & Relative Accuracy |
0.1 °C & ±0.5 °C |
| Temperature Sensor |
Pt 100 (3-wire) |
| Temperature Compensation |
Auto / Manual (0°C to 100°C) |
| Set Point and Controller Functions |
| Function |
Limit Control |
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Switching Hysteresis
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0.00 to 2.00 pH or 0 to 300 mV
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| Contact Outputs, Controller |
2 SPDT relays |
| Switching Voltage/ Current/ Power |
Max 250 VAC/ Max 3A/ Max 600 VA |
| Electrical Data and Connections |
| Power Requirement |
85 to 260 VAC, 50/60 Hz or DC |
| Signal Output/ Load |
4-20mA galvanically isolated / 200Ω |
| pH/ORP Input |
BNC (1012 Impedence) |
| Connection Terminals |
3 detachable connectors (3-pin; 7-pin & 9-pin terminal blocks) |
| Main Fuse |
250mA, Anti-surge (BUSSMAN S504 + 250mA) |
| Environmental Conditions |
| Maximum Relative Humidity |
10 to 95 % (Non-condensing) |
| Ambient Temp. Operating Range |
-10 to 50 °C |
| Mechanical Specifications |
| Dimensions |
96 x 48 x 150 mm |
| Weights |
300 g (boxed) |
