Brand：HANNA
Model：HI8720
Name：Oxidation reduction ORP monitoring and analysis controller
Specifications
| Measurement range mV | ±1000mV |
| pH resolution | 1mV |
| Measurement Accuracy of mV | +/- 5mV, +/- 0.5% (input mode) |
| pH calibrating mode | Drift: CAL knob manual trimmer +/- 200mV |
| Impedance -pH | 10 ^ 12Ohm, electrode type with matching reference pin input can be used, 4 to 20 mA |
| pH electrode type | BNC Interface type, according to the requirements of the measurement project, select the BNC type acidity pH electrode |
| Dosing relay set point | 1, maximum 2A (isolated), 240 VAC |
| Dosing relay setting range | ±1000mV |
| Alarm relay set point | 1, maximum 2A (isolated), 240 VAC |
| Alarm relay setting range | 10~300 mV |
| Dosing control mode | Manual selector switch OFF/AUTO/ON |
| control delay time | Manual front panel knob adjustment within 5 to 60 minutes, this function can be turned off through the rear panel terminal |
| analog output | 0 to 20 mA or 4 to 20 mA [Isolated] |
| Backlight Settings | Keep on |
| opening size | 141 * 69Mm, depth: 135mm |
| Power Supply | 230AC ± 10%，50/60 Hz |
| Applicable environment | -10~50 ℃; 95% RH, non-condensing |
| Shell material | ABS flame retardant plastic housing and panel design, equipped with a high transparent splash-proof front cover |
| Dimensions | 141*69mm |
| Weight | 1kg |
Packing list
machine X1, manual X1, certificate X1, warranty card X1
After-sales instructions
Warranty days: 365 days
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/20849/Specification.html , which is only used by users who purchase commodities from the NBCHAO.