- Fully customizable
- RS485 interface HI 22122-1 only
- Differential input for ground loop protection
- Automatic two point ORP calibration
- Last calibration data
- Password protection
- Fail Safe Alarm System
- Overdosing safeguard
The HI 22 controllers have been engineered with the same outstanding quality and features as the HI 21 meters.
The Fail Safe Alarm System protects these meters against the pitfall of process control, like power interruption or line failure. User selectable timing capability safeguards against overdosing and saves money while protecting the environment. RS485 capability only available in the HI 22122-1 PC compatible. The microprocessor memory is fully programmable and has a 3-month backup power supply.
These instruments have a differential input, extending electrode life by eliminating ground loop current through the reference. Users can choose between ON/OFF and proportional control as well as selectable current and voltage outputs. For more flexibility and better resolution for chart recorders, choose any two points between 0 and ±2000 mV to correspond to the analog output spans.
Wiring the controllers is simple with extractable terminal modules. A host of self-testing features and user-friendly functions make HI 22 a great value.
Order Information:
Each HI 22 model is supplied complete with instructions.
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| Range |
ORP |
±2000 mV |
|
Temperature |
-9.9 to 120°C |
| Resolution |
ORP |
1 mV |
|
Temperature |
0.1°C |
| Accuracy @ 20°C |
ORP |
±2 mV |
|
Temperature |
±0.5°C |
| Input Impedance |
|
1012 Ohm |
| ORP Calibration |
|
automatic, at 0 and 350 or 1900 mV |
| Analog Output |
|
0 to 1 mA, 0 to 20 mA, 4 to 20 mA; 0 to 5 VDC, 1 to 5 VDC, 0 to 10 VDC |
| Digital Output |
|
RS485 |
| Relays 1 and 2 |
|
electromechanical relay SPDT contact outputs, 5A-250 VAC, 5A - 30 VDC (resistive load) (HI 221YZ), fuse protected: 5A, 250V fast fuse |
| Alarm Relay |
|
electromechanical relay SPDT contact output, 5A - 250 VAC, 5A - 30 VDC (resistive load) Fuse protected: 5A, 250V, 250V fast fuse |
| Power Supply Input |
|
±5V (for amplified electrodes) |
| Power Supply |
|
115 VAC ±10% or 230 VAC ±10%; 50/60 Hz |
| Power Consumption |
|
15 VA |
| Over Current Protection |
|
400 mA, 250V, fast fuse |
| Environment |
|
0 to 50°C (32 to 122°F); RH max. 85% non-condensing |
| Protection |
|
IP 54 |
| Dimensions |
|
221 x 181 x 86 mm (8.7 x 7.1 x 3.4’’) |
| Weight |
|
1.4 kg (3.1 lb.) |
|
|
|
Weight:
6.00 Pounds |
|
Dimensions:
10.00(L) x
10.00(W) x
10.00(H) Inches |
|
Weight Disclaimer: *Weight may vary based on configuration. |
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