Wall-Mounted, Single Setpoint and Proportional pH Control

Wall-Mounted, Single Setpoint and Proportional pH Control
Wall-Mounted, Single Setpoint and Proportional pH Control
PHCN-901
U Wall Mount
U Isolated Recorder Output
U Simple Operation
U 10 Minute Maximum Dosing Time
The PHCN-901 is a pH
controller with a single setpoint
for proportional dosage of
acid or alkaline solutions.
Any pH electrode with a BNC
connector can be directly
attached to the PHCN-900
series or ORCN-901. The
proportional control can be fine
tuned through two dials on the
front panel. The time cycle is
adjustable from 0 to 90 seconds
and the proportional band from
0.0 to 2.0 pH. Coarse and fine
as well as two offset and slope
trimmers make accurate setting and
calibration easy and convenient.
A pump or electro-valve can be
wired directly to the controller
and be powered through the
terminals.
The PHCN-901 also provides
for an alarm relay. The
alarm is activated when the
PHCN-902 shown smaller
measurements stray away from
than actual size. PHE-1411
the setpoint by a predetermined
laboratory pH electrode
value in the 0 to 2 pH range.
sold separately.
A max dosing time from
1 to 10 minutes is required to be set,
after which the alarm is activated to warn of an abnormality.
The alarm can be configured in either normally-closed or
normally-open state. The PHCN-900 series also provides an
isolated output signal, which is user selectable between 0 to 20
maximum dosing times is exceeded. The alarm
or 4 to 20 mA. A dial on the front panel renders manual
can be configured in either normally-closed or
temperature compensation fast and easy. For automatic
normally-open state and turned off during maintenance.
compensation, hook up a 3 wire Pt 100 RTD to the controller.
The ORCN-901 is an ORP controller with a single setpoint for
To speed up wiring, PHCN-900 and ORCN-901 series comes with
user-selectable dosage of reducing or oxidizing solutions. With
extractable terminal modules. Once wired up, the compartment
containing the connections is protected behind a fire-retardant ABS proportional control, you can fine tune your treatment plant and
minimize the use of chemicals. The proportional setting can be
panel. Several LEDs show whether the setpoint or alarm relays are
adjusted through the time cycle from 0 to 90 seconds and the band
activated from a distance.
from 0 to 200 mV. The setpoint can be accurately adjusted through
The PHCN-902 is a pH controller with two setpoints for proportional coarse and fine trimmers. A pump or electro-valve can be wired
dosage of acidic and alkaline solutions. Through two sets of coarse directly to the controller and be powered through the terminal. In
and fine trimmers, the setpoints can be accurately fine tuned to
addition to the setpoint relay, the ORCN-901 also provides for
any value in the 0.00 to 14.00 range. Likewise, two trimmers on the an alarm relay. The alarm is activated when the measurements
front panel make for easy calibration. The proportional control can
exceed the operator-adjustable threshold of 0 to 200 mV. For
be adjusted to match your application through the time cycle from
extra security, a maximum dosing time from 1 to 10 minutes is
0 to 90 seconds and the proportional band of 0 to 2 pH. Two
required to be set, after which the alarm is activated to signal an
pumps or valves can be wired directly to the controller and
abnormality. The alarm configuration is alterable in a
be powered through the terminals. The PHCN-902 provides
normally-closed or a normally-open state to accommodate
for two types of alarms. The alarm relay is activated when
fail-safe installations. Any recorder accepting a 0 to 20 or 4 to
the measurements are beyond the setpoints by more than a
20 mA output can also be hooked up to the controller. One can
predetermined value in the 0 to 2 pH range. Alternatively, the
judge the controller’s status, even from a distance, by observing
relay can activate, when one of the two independently-adjustable
the dosage or alarm LEDs.
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Specifications
Range: 0.00 to 14.00 pH;
ORCN-901: -500 to +1500 mV
Resolution: 0.01 pH; ORCN-901: 1 mV
Accuracy @20°C/68°F: ±0.02 pH
ORCN-901: ±5 mV
Typical EMC Deviation: ±0.1 pH;
ORCN-901: ±6 mV
Calibration: PHCN-901, ORCN-901:
One point, through trimmers on the front
panel; PHCN-902: Two point
Temperature Compensation:
Manual or Automatic with Pt100 RTD
from -10 to 80°C (14 to 176°F)
Setpoint: PHCN-901: one, selectable
from 0.00 to 14.00 pH;
PHCN-902: Two, selectable
Recorder Output: Selectable from
0 to 20 mA or 4 to 20 mA, isolated
Proportional Control:
Adjustable: pH from 0.0 to 2.0 and time
cycle from 0 to 90 seconds;
ORCN-901: Adjustable: mV from 0 to
200 and time cycle from 0 to 90 seconds
Dosing Contact: PHCN-901: One
powered terminal for pH correction
(115 or 240V) (Maximum 2 A 1,000,000
strokes); activated proportionally when
pH > setpoint for acid dosage or
pH < setpoint for alkaline dosage
PHCN-902: Two powered terminals for
acid and alkaline correction
(115 or 240V) (Maximum 2 A
1,000,000 strokes); Proportional acid
Dosage: activated when pH > setpoint,
Proportional Alkaline dosage: activated
when pH < setpoint
ORCN-901: One powered terminal
for mV correction (115 or 240V)
(Maximum 2A 1,000,000 strokes);
activated proportionally
mV > setpoint for acid dosage or
mV < setpoint for alkaline dosage
Alarm Relay: One, activated when
pH varies (selectable 0 to 2.0)
(ORCN-901 selectable 0 to 200 mV)
from the setpoint and/or maximum
dosage time (1 to 10 minutes) elapses.
Isolated, (maximum 2 A, maximum
240V, resistive load, 1,000,000 strokes)
Power Supply:
110/115V or 220/240V; 50/60 Hz
Environment: -10 to 50°C (14 to
122°F); 95% non-condensing
Enclosure: 181 L x 221 W x 142 H mm
(7.1 x 8.7 x 5.6")
Weight: 1.6 kg (3.5 lb)
FRONT VIEW
110
(4.33)
FRONT VIEW
pH
110
(4.33)
9.56
181
(7.1)
pH
9.56
164
(6.45)
181
(7.1)
164
(6.45)
204
(8.03)
221
(8.70)
204
(8.03)
Dimensions:
mm
(inch)
BOTTOM
VIEW
110
(4.33)
221
(8.70)
BOTTOMDIN
VIEW
or BNC connectors
55
(2.16)
142
(5.60)
110
(4.33)
DIN or BNC connectors
55
(2.16)
142
(5.60)
99
(3.90)
ORCN-901 shown
smaller than actual size.
99
5(3.90)
(0.19)
5
(0.19)
To Order
Model No.
Description
PHCN-901
Wall mount single setpoint pH controller
PHCN-902
Wall mount dual setpoint pH controller
ORCN-901
Wall mount single setpoint ORP controller
PHE-6510
pH industrial submersible electrode
(requires mounting assembly)
PHEH-65-10-PT100
Mounting assembly with temperature compensation
(required for PHE-6510)
PHA-4
4.00 pH buffer solution 500 mL (1 pt) bottle
PHA-7
7.00 pH buffer solution 500 mL (1 pt) bottle
PHA-10
10.00 pH buffer solution 500 mL (1 pt) bottle
ORE-6510
ORP industrial submersible electrode (requires
PHEH-65-10 mounting assembly)
PHEH-65-10
Mounting assembly for ORE-6510 (required)
Comes complete with operator’s manual.
Ordering Examples: PHCN-901, pH controller, PHE-6510, pH electrode, PHEH-65-10-PT100,
mounting assembly with temperature compensation, PHA-4, pH 4.00 buffer, PHA-7,
pH 7.00 buffer.
PHCN-902, dual setpoint pH controller.
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