Description
| Brand | HANNA |
| Model | HI8711 |
| pH | |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.02 pH (0 to 100 °C); ±0.05 pH (-20 to 0 °C); ±0.5% (input from transmitter) |
| pH Calibration | offset: ±2 pH with OFFSET trimmer; slope: 80 to 110% with SLOPE trimmer |
| pH Temperature Compensation | fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F) |
| pH Input impedence | high impedance 10¹² Ohm; reference and matching pin inputs are available; 4-20 mA |
| Process Control Meter | |
| Alarm Relay Set Point | 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Alarm Relay Range | 0.2 to 3.00 pH |
| Dosing Control | OFF/AUTO/ON with selection switch |
| Over Dosing Control | adjustable, from 5 min to 60 min with knob or disable by wire strap - on rear panel |
| Backlight | continuous on |
| Voltage Output | ±5 Vcc; 150 mA max load for amplified electrodes |
| Enclosure | flame retardant ABS body and front panel; transparent splash-proof front cover |
| Panel Cutout | 141 x 69 mm (5.6 x 2.7’’) |
| Recorder Output | 0-20 mA or 4-20 mA (isolated) |
| Set Point | 2, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected); range: alk. set: from 0.00 to 14.00 pH; acid set: from 0.00 to 14.00 pH |
| Power Supply | 115 VAC ±10%; 50/60 Hz |
| Environment | -10 to 50°C (14 to 122°F); RH max 95% non-condensing |
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