Hanna Instruments BL-932700-0 Mini Panel Mounting ORP Controller
BL-932700 is an ORP mini controller that has been designed for easy, affordable installation in tight spaces, ideal for simple yet effective process control.
BL-932700-0 Mini Panel Mounting ORP Controller
As a result of this controller's compact size, BL-932700 can be installed right next to tanks or vats.
This versatile controller is ideal for many applications, such as ORP monitoring bleaching processes, waste water treatment and swimming pools. BL-932700 permits automatic control of installations previously checked manually.
The instrument can be set for reducing or oxidizing dosage. It measures in the ±1000 mV range, with 1 mV resolution. Set point adjustment and calibration are simply performed through trimmers on the front panel. You can also choose automatic or manual dosing mode with a switch on the front panel. Manual control is particularly useful during maintenance operations, because it permits you to enable or disable the dosing relay according to your need.
The overtime control system advises you when the relay is active too long, helping to prevent over dosage. In addition, this model features a 4-20 mA analog output for recorder connection.
Two models are available, with power supply input at 115/230 Vac or 12 Vdc.
Order Information:
The BL 932700 is supplied with mounting brackets, transparent cover, and instructions.
Specifications
| Range | ±1000 mV |
| Resolution | 1 mV |
| Accuracy | ±5 mV |
| Calibration | manual, with CAL trimmer |
| Dosing Relay | 1, max 2A (fuse protected), 250 Vac, 30 Vdc |
| Dosing Selection | reducing or oxidizing contact open = reducing dosage, activated when reading exceeds setpoint value contact closed = oxidizing dosage; activated when reading falls below setpoint value |
| Setpoint | adjustable from -1000 to 1000 mV |
| Overtime | adjustable, typically from 5 to approx. 30 minutes |
| Recorder Output | 4-20 mA, accuracy ±0.20 mA, 500 Ohm max load |
| Input Impedance | 102 Ohm |
| Power Supply | 12 vdc |
| Dimensions | 83 x 53 x 99 mm (3.3 x 2.1 x 3.9") |
| Weight | 200g |
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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.