Hanna Instruments HI-943500C Conductivity Controller (Low Range)
This controller allows the direct connection of a potentiometric conductivity probe (HI-7638) with a cable up to 20 metres long, without using any transmitter.
Four different models are available with different measurement ranges to satisfy any application requirements.
The output configuration for connecting a recorder or a PLC can be chosen between 0-20 or 4-20 mA.
The LED on the front panel indicates the operating status of the controller.
The automatic temperature compensation (ATC) is performed directly by the HI-7638 probe with built-in temperature sensor.
The front panel is protected behind a transparent splash-proof cover.
Order Information:
The HI-943500 series is supplied with mounting brackets and instructions.
Specifications
| Range | 0.0 to 1999 µS/cm |
| Resolution | 1 µS/cm |
| Accuracy | ±2% F.S. |
| Temperature Compensation | automatic, 0 to 60°C (32 to 140°F), with ß=2%/°C |
| Recorder Output | 4-20 mA (isolated) |
| Setpoint Relay | 1, isolated, 2A, Max. 240 V, resistive load, 1,000,000 strokes |
| Alarm Relay | 1, isolated, 2A, Max. 240 V, resistive load, 1,000,000 strokes |
| Power Supply | 115/230 ±10% Vac; 50/60 Hz |
| Enclosure | Black anodised aluminium body; front and back with ABS;transparent splash-proof front cover |
| Environment | -10 to 50°C (4 to 122°F); RH max 95% non-condensing |
| Panel Cutout | 141 x 69 mm (5.6 x 2.7") |
| Weight | 1 kg (2.2 lb.) |
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.