**WARNING!** These products can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP),
which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
Product details
Spot an error? Let us know!
Headline
720 Series II Ph/orp Monitor/controllers
The advanced “isolated” circuitry of the 720 Series II pH/ORP Monitor/ controllers guarantees accurate and reliable measurements — completely eliminating ground-loop and noise issues.
Features & Benefits
Benefits:
- Affordable
- Ease of Operation
- Low Maintenance
-
Ensures Product Quality
Features:
- pH 0-14 or ORP ±2000 mV
- Choice of 3½ digit display or analog meter
- Advanced “Isolated” circuitry
- Automatic temperature compensation to 25°C (NERNST equation)
- Isolated 0-10 VDC Recorder Output standard
- IP65/NEMA 4X water resistant and corrosion-proof enclosure
- Built-in electronic calibration
- Single set point/alarm standard
- Adjustable set point hysteresis
- Solid State 24 VDC Output
- 10 amp relay operates on choice of increasing or decreasing reading
- Push-to-test set point check
- Internal set point discourages unauthorized adjustment
- Selectable 115/230 VAC
- Unique, easily installed sensors
- Heavy duty “F” model sensors may be installed in ANY direction including inverted
Additional Notes
| Specs | Value |
|---|---|
| Ranges | 0-14 pH or ±2000 mV ORP |
| Display | Analog Models: 2.5 in./63 mm meter Digital Models: 0 .5 in./13 mm 3½ Digit LCD Optional: 3½ Digit Backlit |
| Linearity | Electronics: ±0.05% (±0.01 pH units/±1 mV of full scale) |
| Resolution | Analog Meter: ±0.13 pH units/±40 mV Digital Display: ±0.01 pH units/±1 mV |
| Sensitivity | 0.05% of full scale (0.01 pH units/1.0 mV) |
| Stability | ±0.05% of full scale (±0.01 pH units/±1.0 mV) |
| Repeatability | ±0.05% of full scale (±0.01 pH units/±1.0 mV) |
| Calibration Check | Built-in (7 and 0 pH / 0 and -2000 mV) |
| Recorder Output | Isolated 0-10 VDC @ 5 mA max. (linear); standard all models |
| Output Impedance | 100Ω ±5% |
| Sensor Inputs | 1; 3 input option available. (pH & ORP sensors may NOT be mixed). |
| Control Function | Single Alarm/controller fully adjustable 0-100% of full scale Hysteresis: Adjustable from 0.3-3% of full scale Indicators: Above (red) and below (green) set point LEDs (reversible) Contact Rating: SPDT 10 amp @ 125 VAC, 30 VDC. Relay operates increasing or decreasing reading (selectable) Second Alarm/controller, with above specifications - optional |
| Solid State Output | Powered; 24 VDC unregulated 30 mA max. |
| Power | 115/230 VAC, 50/60 Hz, ±15% (user selectable) 24 VAC optional |
| Maximum Power Consumption | @ 115V: 100 milliamps |
| Dimensions | 152 H x 122 W x 96 D mm / 6 H x 4.8 W x 3.8 D in. |
| Construction | Fully gasketed heavy-duty ABS case; water resistant and corrosion proof IP65/NEMA 4X rated |
| Ambient Temp Range | 0 - 60°C / 32 - 140°F |
| Weight | 0,9 kg/2 lbs. |
Alternate configurations
| SKU | Description | List price | - |
|---|---|---|---|
| MLC-720IIECR | 720IIECR | 720II REAR HOUSING | $68.50 | |
| MLC-721II | 721II | pH-Analog Monitor Only | $771.00 | |
| MLC-721IIOEM | 721IIOEM | 721II OEM PH ANALOG MONITOR ONLY | $673.50 | |
| MLC-721PB24VA | 721PB-24VA | pH-Circuit Board for Analog Monitor Only | $483.00 | |
| MLC-722II | 722II | pH-Analog Monitor Controller | $885.00 | |
| MLC-723II | 723II | pH-Digital Monitor / Controller | $842.00 | |
| MLC-723II35BLPC | 723II-35BL-PC | pH-Digital Monitor / Controller w/ options | $1,090.00 | |
| MLC-723II4A | 723II-4A | pH-Digital Monitor / Controller w/ options | $1,068.50 | |
| MLC-723II4A35BL | 723II-4A-35BL | pH-Digital Monitor / Controller w/ options | $1,293.50 | |
| MLC-723II4APA | 723II-4A-PA | pH-Digital Monitor / Controller w/ options | $1,136.00 | |
| MLC-723II4APAPC | 723II-4A-PA-PC | pH-Digital Monitor / Controller w/ options | $1,159.00 | |
| MLC-723II4APAPTS | 723II-4A-PA-PTS | pH-Digital Monitor / Controller w/ options | $1,217.50 | |
| MLC-723II4APAT35BL | 723II-4A-PAT-35BL | pH-Digital Monitor / Controller w/ options | $1,532.00 | |
| MLC-723II4APC | 723II-4A-PC | pH-Digital Monitor / Controller w/ options | $1,091.50 | |
| MLC-723II4APCSFP | 723II-4A-PC-SFP | pH-Digital Monitor / Controller w/ options | $1,197.50 |
Call or text: +1 (484) 544-0506
The Supplyline team is here to help!