Omega Products PHCN-370A-ORP User Manual
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Specify input code: “PH” (pH controller), “ORP” (ORP controller),
Input Code Range Description
PH 0 to 14 pH; pH controller
0 to 100°C (32 to 212°F) with temperature
compensation
ORP ±2 Vdc (200 mV) ORP controller
Input Type
⻬ Measure, Control and
Record pH or ORP
⻬ NEMA Box Enclosure Single or
Dual Input with Paper Recorder
⻬ Display 4-Digit LED
13.7 mm (0.54")
⻬ Microprocessor
Based Versatility
⻬ Compact Panel Design
The PHCN-370/370A Series of
pH or ORP recorders and
controllers provides a reliable
method of monitoring, controlling
and recording pH and conductivity
for various industrial and chemical
processes. The PHCN-370A has an
impressive list of standard features
which include NEMA-4X enclosure,
digital display, paper or paperless data logging, relay
output and manual or automatic temperature compensation.
The PHCN-370A series features an inkless pressure sensitive
paper recorder. The PHCN-370A series pressure sensitive recorder
and controller will record up to 30 days of process data. Choose
between either a single or dual parameter monitoring system of
pH or ORP.
The pH and ORP controller is a new microprocessor based design
featuring manual or automatic temperature compensation, two
mechanical relays for on-off control, digital display of either pH,
ORP or temperature, calibration and parameter setpoints are
programmable through the front keypad.
Specifications
Common Specifications
Control Outputs: 2 SPDT 6 amp relays, programmable for active
above or below setpoint latch or non-latching
Power: 115 Vac 50/60 Hz; 230 Vac optional
pH Controller
Range: pH 0 to 14; Temperature 0 to 100°C (32 to 212°F)
Resolution: 0.01 pH; 0.1°C
Accuracy: 0.01 pH; ±0.1°C
Display: 4-digit red LED, 13.7 mm (0.54")
Temperature Compensation: Manual or automatic 0 to 100°C
(32 to 212°F) using PT100 Ω RTD
Connector: pH-BNC; Temperature-terminal strip
ORP Controller
Range: ±2 Vdc (±2000 mV)
Display: 4-digit red LED, 13.7 mm (0.54")
Resolution: 0.1 mV
Accuracy: 0.1 mV @25°C
Decimal Point: 2 position autoranging
Paper Recorder
Range: 2 to 12 pH
Resolution: ±0.2 pH/lateral chart deviation
Accuracy: ±0.2 pH
Temperature Compensation: Manual supplied
with fixed resistor. Automatic 1000 Ω platinum RTD
Industrial Wall Mount Controllers/Recorders for pH or ORP
MOST POPULAR MODELS HIGHLIGHTED!
To Order
(Specify Model Number)
Model No. Price Description
PHCN-370A-(*) $995 Single input monitor and paper recorder
PHCN-371A-(*) 1450 Single input controller and
paper recorder
PHCN-372A-(*)-(*) 1950 Two controllers and two channel
paper recorder
PHCN-55 995 Battery-powered pH recorder
PHCN-371A-ORP, $1450, shown
smaller than actual size.
Model No. Price Description
PHCN-45-CHART $10.50 2 to 12 pH chart paper
SL-652 10.50 ORP generic chart paper
FW-332 89.00 Reference Book: Advanced pH
Measurement and Control
Accessories
PHCN-370A-PH
$
995
Note: For 230 Vac power add “-230” suffix to model number, no additional charge.
Comes complete with operator’s manual.
Ordering Examples: PHCN-371A-PH, single input pH controller/recorder, $1450.
PHCN-370A-PH, pH monitor and recorder, $995.
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