Bộ điều khiển PH HANNA HI 8711 ( 2 ngõ ra điều khiển bơm a xít và bơm kiềm)
| Range |
|
0.00 to 14.00 pH |
| Resolution |
|
0.01 pH |
Accuracy
@ 20 °C |
|
±0.02 pH (0 to 100 °C)
±0.05 pH (-20 to 0 °C)
±0.5% (input from transmitter) |
| Input |
|
high impedance 1012 Ohm; reference and matching pin inputs are available; 4-20 mA |
| Power Output |
|
±5 Vcc; 150 mA max load for amplified electrodes |
| Calibration |
|
offset: ±2 pH with OFFSET trimmer
slope: 80 to 110% with SLOPE trimmer |
Temperature
Compensation |
|
fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F) |
| Recorder Output |
|
0-20 mA or 4-20 mA (isolated) |
| Setpoint Relay |
|
2, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Setpoint Range |
|
alk. set: from 0.00 to 14.00 pH
acid set: from 0.00 to 14.00 pH |
| Alarm Relay |
|
1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected) |
| Alarm 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 |
| Power Supply |
|
115 VAC ±10% or 230 VAC ±10%; 50/60 Hz |
| Enclosure |
|
flame retardant ABS body and front panel; transparent splash-proof front cover |
| Environment |
|
-10 to 50°C (14 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.) |
Dùng kèm điện cực: HI 6100805
Hãng sản xuất Hanna - Italia
Xuất xứ: Rumani