hydroCHEM
- Automatic controller for Conductivity and pH. Ideal for Hydroponic applications. Designed to control external pumps, valves etc. Temperature readout is provided. Supplied with sensors and calibration standards.
- The new advanced design makes this unit far superior and yet cheaper and easier to use than other brands. The hydroCHEM is the culmination of over 30 years manufacturing experience.
- Waterproof construction rated to IP65.
- Supplied with 24V DC output control cable for low-powered devices or relay etc.
- Memory for 2300 stored readings, with automatic datalogging facility (optional).
- RS232 Interface for remote monitoring of system (optional).
- Pump sensor only allows automatic dosing when circulating pump is on.
- Large digit mode makes the data easy to read in any light or from a distance.
- Automatic calibration
- 4 Terminal conductivity sensor technology resists fouling for maximum reliability.
- User can choose readout in mS/cm, CF units, dS/M or ppM (TDS).
- Quick-dose function
- Temperature readout with optional temperature control output.
- Fully adjustable ON and OFF times can be set separately for Conductivity and pH pumps, eliminating over-dosing.
- User can select acid or alkali addition.
- Password protection, so only qualified users can change set-up or calibration.
- Good laboratory practices (GLP) function brings analytical Q.A. to the hydroponics farmer. Instant recall of current calibration and system set-up information.
- 24 Hour calendar clock (optional).
- Emergency shutoff timer shuts off Conductivity and pH pumps if they operate continuously for user-set time.
- Operates off a single AC/DC power supply. No electrical installation required.
| pH Ranges | 2.0 to 12.0 pH 2.00 to 12.00 pH* |
| Resolution | 0.1 pH 0.01 pH* |
| Accuracy | +/-0.01pH |
| Conductivity Ranges | 0 to 9.9 mS/cm 0 to 9.99 mS/cm* 0 to 99 CF 0 to 99.9 CF* 0 to 9.9 dS/m 0 to 9.99 dS/m* |
| Resolutions | 0.1 mS/cm 0.01 mS/cm* 1 CF 0.1 CF* 0.1 dS/m 0.01 dS/m* |
| Accuracy | +/-0.5% of full scale |
| TDS Ranges | 0 to 9.9 ppK 0 to 9.99 ppK* |
| Resolution | 0.1 ppK 0.01 ppK* |
| Accuracy | +/-1.0% of full scale |
| Temperature Range | -10.0 to 120.0 oC |
| Resolution | 0.1 oC |
| Accuracy | +/-0.2 oC |
| Enclosure | Tough ABS enclosure, fully waterproof to IP65. |
| Power | 24V DC, 50mA Max for controller. Up to 150 mA can be supplied out of each 24V DC control output. AC/DC Adaptor to suit specified country is supplied. |
