EUTECH INSTRUMENTS | ALPHA CON 1000 CONDUCTIVITY CONTROLLERTRANSMITTER (REVISION 3) | Alpha 2000 family cover - LAMBDA

Corporate Profile
A leader in the field of electrochemical
instrumentation, Eutech Instruments is a
dynamic company rapidly positioning itself
globally as a leading manufacturer of
electrochemical instrumentation for water
analysis. A pioneer in developing ASIC-based
(Application Specific Integrated Circuit)
instruments, Eutech Instruments has
gained international awards and recognition
for its achievements in sensor technology,
software programming and product design.
Underlying its strong commitment to
Research & Development, is the constant
drive by Eutech engineers to apply new,
emerging technologies to the design and
manufacture of advanced electrochemical
instruments. Eutech offers a comprehensive
range of laboratory and field instrumentation
for water analysis and continuous online
process instruments for monitoring and
control of pH, Conductivity, Total Dissolved
Solids (TDS), Turbidity, Temperature, Ion
Concentration, Redox Potential (ORP) and
Dissolved Oxygen (DO). Eutech’s products are
certified to comply with global standards for
electromagnetic emission and interference.
Eutech Instruments is dedicated to producing
CON 08X233408 10/04 Rev 1
convenience products for water analysis.
“
Having an extensive product line has won Eutech
Instruments the renowned Frost & Sullivan
”
Market Engineering Award 2001 for Best Product
Line Strategy which credits Eutech for
demonstrating the most insight into customer
needs and product demands.
Conductivity Electrodes line diagrams
All measuurements in mm
150.5
41.5
ø22.2
Black Strain Relief
22.9
3/4” NPT
Cable Length : 30”
3/4” NPT
25.5
EC91346S
ø15.5
ø12.8
ø4
ø6
18.5
8
12
15
51.5
50
27.3
64
ECCS10-0-1S
ø15.5
ø12.8
ø4
ø6
8
12
15
18.5
56.5
50
27.3
64
ECCS10-1-0S
ø12.8
ø4
ø15.5
ø6
27.3
8
12
15
18.5
56.5
50
64
ECCS10-0-01S/ECCS109-0-01T
Dissolved Oxygen Electrodes line diagrams
All measuurements in mm
ø8.5
ø13.2
34.5
ø20.5
0.5
5.0
5.0
3.0
59.0
10.5
ø21.0
ø8.0
ø14.0
R3
.0
4.0
R1
ø85.0
Sensor
Order Code:
Conductivity Cells
EC91346S
ECCS10-0-01T
ECCS10-0-01S
ECCS10-0-1S
ECCS10-1-0S
Order Code:
Dissolved Oxygen Probes
ECDOGEN
ECDOTPII
12
Specifications:
Conductivity range
Cell constant, k
Temperature sensor
Pressure rating
Material
Thread
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
Up to 500 mS/cm
0.3, 4-Cell
Pt 100, 3-wire
6 bar
Ryton, SS 316
3/4” NPT
Integrated 7.6m, 8-wire double-shielded, open
150.5 mm
22.2 mm
650 g
Conductivity range
Cell constant, k
Temperature sensor
Pressure rating
Material
Thread
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
Up to 20 µS/cm
0.01, 2-Cell
Pt 100, 3-wire
6 bar
Titanium
½” NPT
Integrated 7.5m, 6-wire double-shielded, open
168 mm
12.8 mm
595 g
Conductivity range
Cell constant, k
Temperature sensor
Pressure rating
Material
Thread
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
Up to 20 µS/cm
0.01, 2-Cell
Pt 100, 3-wire
6 bar
SS 316
½” NPT
Integrated 7.5m, 6-wire double-shielded, open
168 mm
12.8 mm
595 g
Conductivity range
Cell constant, k
Temperature sensor
Pressure rating
Material
Thread
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
0.1 to 200 µS/cm
0.1, 2-Cell
Pt 100, 3-wire
6 bar
SS 316
½” NPT
Integrated 7.5m, 6-wire double-shielded, open
168 mm
12.8 mm
595 g
Conductivity range
Cell constant, k
Temperature sensor
Pressure rating
Material
Thread
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
Up to 100 mS/cm
1.0, 2-Cell
Pt 100, 3-wire
6 bar
SS 316
½” NPT
Integrated 7.5m 6-wire double-shielded, open
168 mm
12.8 mm
595 g
Specifications:
Dissolved oxygen range
Type
Flow rate
Response time
Temperature sensor
Pressure rating
Material
Membrane
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
0.5 to 40 ppm
Galvanic
1 to 2 cm/s (dependent on temperature and O2 level)
40 to 50 secs to attain 95% of actual reading
Pt 100
6 bar
Delrin housing
Teflon
Integral 5m water-resistant, open
69.5 mm
58.0 mm
670 g
Dissolved oxygen range
Type
Flow rate
Response time
Temperature sensor
Pressure rating
Material
Membrane
Cable
Dimension: Length (excludes cable)
Diameter (external)
Weight
0 to 10 ppm
Galvanic
1 to 2 cm/s (dependent on temperature and O2 level)
40 to 50 secs to attain 95% of actual reading
Pt 100
6 bar
Delrin housing
Teflon
Integral 5m water-resistant, open
69.5 mm
58.0 mm
670 g
αlpha 2000 Series
Introduction
2
α lpha
pH Controller
4
Order Coe:
ORP Electrodes
Specifications:
Sensor
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Potential matching pin
Material
Thread
Cable
ECHTAUTSO-05B
Connector
Dimensions:
Length (excludes cable)
Diameter (external)
Weight
α lpha
Conductivity
Controller
6
Sensor
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Potential matching pin
Material
Thread
Cable
ECHTPTTSO-05B
Connector
Dimensions:
Length (excludes cable)
Diameter (external)
Weight
Gold
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
Platinum
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor
screened
BNC
151 mm
26 mm
500g
Platinum
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
Platinum
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor
screened
BNC
151 mm
26 mm
500g
EC-HTAUTSO-05B
EC-HTPTTSO-05B
●
●
●
pH measurements in ‘noisy’ environments, eg. Electroplating
●
EC-ARTSO-05B
●
ORP measurement in cyanide treatment
pH measurement with Automatic Temperature Compensation
EC-ARTSOHF-05B
ORP / REDOX measurements
Application
EC-ARGTSO-05B
8
EC-100GTSO-05B
α lpha
Dissolved
Oxygen
EC-ARHTTSO-05B
pH / ORP Electrode Selection Guide
●
pH measurements in high temperature (110 oC and 9 bar)
●
pH measurements in the presence of Hydrofluoric acid (HF)
●
pH measurements
●
●
●
●
●
ORP measurements in all other applications
pH
Electrodes
10
●
pH/ORP Electrodes line diagrams
All measuurements in mm
12
86.5
ø7
21
ø26
ø19
Conductivity Cells
& Dissloved
Oxygen
Probes
Warranty
Eutech Instruments warrants its controllers
to be free from manufacturing defects for
12 months and electrodes for 6 months.
25
25.5
151
11
Electrodes/Cells/Probes
Order Code:
pH Electrodes
EC100GTSO-05B
ECARGTS0-05B
ECARHTTSO-05B
ECARTSOHF-05B
ECARTSO-05B
10
Specifications:
pH range
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Temperature sensor
Potential matching pin
Material
Thread
Cable
Connector
Dimensions: Length (excludes cable)
Diameter (external)
Weight
0 to 14
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
Pt 100
Platinum
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor screened
BNC
151 mm
26 mm
650 g
pH range
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Temperature sensor
Potential matching pin
Material
Thread
Cable
Connector
Dimensions: Length (excludes cable)
Diameter (external)
Weight
0 to 14
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
N.A.
Platinum
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor screened
BNC
151 mm
26 mm
430 g
pH range
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Temperature sensor
Potential matching pin
Material
Thread
Cable
Connector
Dimensions: Length (excludes cable)
Diameter (external)
Weight
0 to 14
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 110 oC, high temperature
9 bars
N.A.
N.A.
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor screened
BNC
151 mm
26 mm
430g
pH range
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Temperature sensor
Potential matching pin
Material
Thread
Cable
Connector
Dimensions: Length (excludes cable)
Diameter (external)
Weight
0 to 14, HF resistant
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
N.A.
N.A.
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor screened
BNC
151 mm
26 mm
430g
pH range
Reference
Reference electrolyte
Operating temperature
Pressure tolerance
Temperature sensor
Potential matching pin
Material
Thread
Cable
Connector
Dimensions: Length (excludes cable)
Diameter (external)
Weight
0 to 14
Annular Teflon, double junction
Saturated KCl, polymerized gel
0 to 80 oC
6 bars
N.A.
N.A.
PPS (Ryton)
¾” NPT
Integral 5m low-noise semi-conductor screened
BNC
151 mm
26 mm
430 g
Alpha 2000 Series Introduction
pH / ORP / Conductivity / Disso
Panel Mount
Pipe Mount
Wall
Mount
1/
4
DIN Panel
Rated to IP 65 (Nema 4X), the rugged weather-proof casing simplifies installation outdoors or indoors.
Direct access to
calibration sequence
(password controlled)
and sensor status
Back-lit LCD for
brighter and
clearer display;
programmable
contrast and
illumination
duration
Access setup mode (password
controlled) via menu layout for
all controller settings and
configuration.
Bi-colour LEDs indicate
relay status and mode
of operation.
Advanced Switch Mode Power
Supply (SMPS) auto-detects
power supply input from 80 to
250 V, AC or DC for regulated
stable operation.
Manual control of relays (password control) for quick check of electrical connections to pumps and valves.
Proportional integral, Proportional or limit control, operation of relays
MIN Function
MAX Function
100%
Yh
Relay
Relay
Pulse Length T
Pulse Length T
tON
tON
tOFF
50%
tOFF
ON
ON
0%
- Xw
+ Xw
Xp
Xp
Prop.
Band
Prop.
Band
SP 1
SP 2
Control characteristic of controller as proportional controller
2
OFF
Time (S)
Controller signal of pulse length control
OFF
Time (S)
Controller signal of pulse frequency control
olved Oxygen
Max.80
111.50
84
29
175
80
21.5
Holes for post
mounting (4X)
1-22
27.5
Seal gasket
90
66.5
Hole for wall
mounting (2X)
138 + 0.5
175
6.0
90
Cable
glands
24
138 + 0.5
57.8
Wall Mount Drawing (All measuurements in mm)
Automatic Temperature
Compensation with 2 or
3 wire Pt 1000 or Pt 100
temperature sensors.
3-wire system minimizes
errors from the temperature sensor and
cables.
View temperature values
in degree Celsius or
degree Fahrenheit.
Manual Temperature
Compensation offers
independent input of
process and calibration
temperatures.
Independent Relay A and B
allows combination of ‘Hi’
and‘Lo’ settings.
Liquid ground (potential matching
pin) for symmetrical operations
(pH / ORP controllers only)
Wash relay allows automatic,
periodical cleaning of sensors
– used in conjunction with
‘Wash’ program
‘Single-Pole-Double-Throw’
Alarm relay for fail-safe
operations. When power
supply to the controller is
broken, the alarm relay
activates.
Useful 12V DC output
from the controller
powers peripheral
wash mechanism,
preamplifiers, etc.
Detachable connectors for easier wiring.
92+0.5
Panel cut out
32
56
96
92
Flat gasket 1 mm [.04]
92+0.5
Dual 4-20 mA scaleable
outputs for measured
parameter and temperature.
Unique ‘Out-of-range’
current setting at 22 mA
differentiates normal
readings from ‘Out-ofrange’ values.
‘HOLD’ terminals allow for pH/
ORP Master-slave operations
(pH analyzer controls ORP
analyzer only under controlled
pH values)
max. 45
max. 180
Panel Mount Drawing (All measuurements in mm)
3
αlpha pH 2000
Alpha pH 2000 pH/ORP
Controller/Transmitter
pH/ORP, two-in-one Controller (software
selectable) for pH or ORP measurement modes.
Special Symmetrical configuration mode to
facilitate operating in environments with
electrical interference. Custom pH or ORP sensors
are available with the potential matching pin
for Symmetrical mode measurements.
Symmetrical
Asymmetrical
In the ORP mode, the alpha pH 2000 is able to
measure in mV or as % concentration, with
independent calibration modes. All parameters
can be operated in the asymmetrical or
symmetrical mode.
With a pH and ORP controller side-by-side,
controllers can be operated in a master-slave
operation where pH and ORP must be measured
and controlled simultaneously, e.g.
electroplating or swimming pool applications.
Under this setup, pH is always maintained and
controlled as a first priority. Only when pH
readings are within set limits, will the ORP
controller be allowed to operate the pumps.
pH calibration is quick and easy with pushbuttons. Calibration buffer sets include US, NIST
and DIN standards. Electrode condition is
updated and displayed after each calibration.
For applications where Hydrofluoric (HF) acid is
present, either Antimony or HF-resistant glass
electrodes must be used.
When Antimony electrodes are used, select
‘Antimony’electrode option from controller menu,
to download relevant Antimony electrode data.
4
Specifications
Alpha pH 2000
- 2.00 to 16.00
± 0.01 pH
0.01 pH
-10.0 to + 125.0 °C (14.0 to 257.0 °F)
0.1 °C / °F
± 0.5 °C (± 1.0 °F)
Pt100 /Pt1000 (jumper selectable); 2 or 3 wire
Auto / manual (reference at 25 °C)
pH range
Accuracy
Resolution
Temperature
Resolution
Relative Accuracy
Temperature Sensor
Temperature Compensation
Set-point and Controller Functions
Function (switchable)
Integral time
Adjustable period with pulse length controller
Adjustable period with pulse frequency controller
Pickup / Dropout delay
Wash cycle
Wash duration
Switching pH hysteresis
Contact outputs, controller
Switching voltage / current / power
P/PI control (pulse length/pulse frequency); limit control
0 to 999.9 minutes
0.5 to 20 sec.
60 to 120 pulses/min
0 to 2000 seconds
0.1 to 199.9 hours
1 to 1999 seconds
0 to 10 % of full scale
1 SPDT, 3 SPST relays
Max. 250 VAC / Max 3A / Max 600VA
Alarm Functions
Function (switchable)
Pickup delay
Switching voltage / current / power
Latching / pulse
0 to 2000 seconds
Max. 250 VAC / Max 3A / Max 600VA
Display
UV coat, backlit 14 segments display with symbols for status information
On/Off selectable with four level of brightness control
LCD
Backlight
Electromagnetic Compliance (EMC) Specifications
According to EN 50081-1
According to EN 50082-1
Emitted Interference
Immunity to Interference
Environmental Conditions
Ambient temperature operating range
Maximum Relative humidity
0 to 40 °C
80% up to 31°C decreasing linearly to 50% at 40°C
Power Supply
80 to 250 VAC/DC 50/60 Hz Approx. 10VA
250 mA anti-surge, S504 BUSSMANN
2
II
Input
Main Fuse
Pollution Degree
Transient Overvoltage category
Electrical Data and Connections
Signal Output
Load
pH input
Connection terminal (Wall mount)
Connection terminal (Panel mount)
Two 0/4 to 20 mA outputs for pH and temperature, galvanically isolated
Max. 600 W
BNC (1012 impedance); Asymmetrical / Symmetrical
3-pin, 8-pin, 9-pin and 13-pin terminal, detachable blocks
3-pin, 9-pin and 19-pin terminal, detachable blocks
Mechanical Specifications
Dimensions (W x H x D)
Weight
Environmental Rating
Wall Mount
Panel Mount
Wall Mount
Panel Mount
Wall Mount
Panel Mount
144 x 144 x 110 mm
96 x 96 x 175 mm
745g (unit) / 1100g (Packed)
550g (unit) / 950g (Packed)
IP 65 (NEMA 4X)
IP54 (front panel)
Ordering Information
Alpha pH 2000 pH/ORP Controller/Transmitter – Wall mount
ECPHCTP2000W
Alpha pH 2000 pH/ORP Controller/Transmitter – Panel mount
ECPHCTP2000P
5
αlpha CON 2000
Alpha CON 2000 Conductivity
Controller/Transmitter
Seven ranges in a single controller allows the
controller to be used in a wide variety of
applications. Maximum measurement range is
1000 mS/cm. Accuracy of ±1% is achievable
for most ranges, while ±2% for measurements
above 500 mS/cm.
4- or 2-cell electrode system can be used with a
input of cell constants, from 0.005 to 9.999.
New 4-cell electrode system eliminates polarizing
effects ensuring more accurate measurements in
highly conductive samples.
The cell constant corresponding to the
cell connected to the controller can be input
independently during calibration.
Status of the cell is updated and displayed after
every calibration and can be viewed at anytime.
Temperature Coefficients can be set for more
precise temperature compensation. Select from
0.0% to 10.0%.
In addition, for 0 to 2.000 µS/cm range, select ‘Pure
water’ compensation graph to correct for the nonlinearity of pure water temperature correction
curves.
100
90
Resistivity In Mohms
80
70
60
50
40
30
20
10
0
0
5
1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 8 5 9 0 9 5 100
Temp oC
Resistivity Of Pure Water
6
Specifications
Alpha CON 2000
Measuring range No
1
2
3
4
5
6
7
Relative accuracy
Temperature range
Resolution
Relative Accuracy
Sensor
Temperature Compensation
Conductivity Measuring range
... to 2.000 µS/cm
... to 20.00 µS/cm
... to 200.0 µS/cm
... to 2000 µS/cm
... to 20.00 mS/cm
... to 200.0 mS/cm
... to 1000 mS/cm
± 1% of full scale reading (±2 % >500 mS/cm)
-10.0 to + 125.0 °C (14.0 to 257.0 °F)
0.1 °C / °F
± 0.5 °C (± 1.0 °F)
Pt100 /Pt1000 (jumper selectable); 2 or 3 wire
Auto / manual (normalized at 25 °C)
Resolution
0.001 µS/cm
0.01 µS/cm
0.1 µS/cm
1 µS/cm
0.01 mS/cm
0.1 mS/cm
1 mS/cm
Set-point and Controller Functions
Function (switchable)
Integral time
Adjustable period with pulse length controller
Adjustable period with pulse frequency controller
Pickup / Dropout delay
Wash cycle
Wash duration
Switching conductivity hysteresis
Contact outputs, controller
Switching voltage / current / power
P/PI control (pulse length/pulse frequency); limit control
0 to 999.9 minutes
0.5 to 20 sec.
60 to 120 pulses/min
0 to 2000 seconds
0.1 to 199.9 hours
1 to 1999 seconds
0 to 10 % of full scale
1 SPDT, 3 SPST relays
Max. 250 VAC / Max 3A / Max 600VA
Alarm Functions
Function (switchable)
Pickup delay
Switching voltage / current / power
Latching / pulse
0 to 2000 seconds
Max. 250 VAC / Max 3A / Max 600VA
Display
LCD
Backlight
UV coat, backlit 14 segments display with symbols for status information
On/Off selectable with four level of brightness control
Electromagnetic Compliance (EMC) Specifications
Emitted Interference
Immunity to Interference
According to EN 50081-1
According to EN 50082-1
Environmental Conditions
Ambient temperature operating range
Maximum Relative humidity
0 to 40 °C
80% up to 31°C decreasing linearly to 50% at 40°C
Power Supply
Input
Main Fuse
Pollution Degree
Transient Overvoltage category
80 to 250 VAC/DC 50/60 Hz Approx. 10VA
250 mA anti-surge, S504 BUSSMANN
2
II
Electrical Data and Connections
Signal Output
Load
Conductivity input
Connection terminal (Wall mount)
Connection terminal (Panel mount)
Two 0/4 to 20 mA outputs for conductivity and temperature, galvanically isolated
Max. 600 W
Screw terminal
5-pin, 8-pin, 9-pin and 13-pin terminal, detachable blocks
5-pin, 9-pin and 19-pin terminal, detachable blocks
Mechanical Specifications
Dimensions (W x H x D)
Weight
Environmental Rating
Wall Mount
Panel Mount
Wall Mount
Panel Mount
Wall Mount
Panel Mount
144 x 144 x 110 mm
96 x 96 x 175 mm
745g (unit) / 1100g (Packed)
550g (unit) / 950g (Packed)
IP 65 (NEMA 4X)
IP54 (front panel)
Ordering Information
Alpha CON 2000 Conductivity Controller/Transmitter – Wall mount
ECCONCTP2000W
Alpha CON 2000 Conductivity Controller/Transmitter – Panel mount
ECCONCTP2000P
7
αlpha DO 2000
Alpha DO 2000 Dissolved Oxygen
Controller/Transmitter
Incorporating the superior Galvanic oxygen
probe, operating the alpha DO 2000 controller
is immediate.
With the Galvanic probe, there is no start-up or
‘warm-up’ time. The probe only takes 40 to 50
seconds to attain 95% of actual readings.
Unlike Clark cells where the probe needs to be
polarised to 700 ~ 800 mV, in the Galvanic probe,
the anode and cathode already carry a
electrochemical potential of 800 mV.
Calibration is quick and easy using the
atmospheric air as the calibration media for
100% air saturation.
Zero drift is avoided as H2O is recreated within
the probe, thus preventing any change to the
pH of the electrolyte. Thus, the electrolye is
recycled within the probe and extends the useful
life.
Rugged Galvanic probe for process applications
requires minimal maintenance. Frequency
between membrane and electrolyte changes is
significantly lower than traditional Clark cell
systems.
View measured values in mg/l or % air saturation,
selectable from the menu-options.
Barometric pressure, Salinity and Temperature
compensation is very important for Dissolved
Oxygen (D.O.) measurements. A Pt 100 sensor
is incorporated in the D.O. probe, allowing
for continuous automatic temperature
compensation. Input Barometric pressure
and Salinity compensation into the controller
and all D.O. measurements will be correctly
compensated.
8
Galvanic probe (construction)
Specifications
Alpha DO 2000
Dissolved Oxygen measuring range
Relative accuracy
Resolution
Temperature
Resolution
Relative Accuracy
Sensor
Temperature Compensation
Pressure Compensation
Salinity Compensation
0.00 to 25.00 mg/l or 0.0 to 300.0% Saturation
± 1.5 % of full scale reading for both ranges
0.01 mg/l or 0.1 %
-10.0 to + 125.0 °C (14.0 to 257.0 °F)
0.1 °C / °F
± 0.5 °C (± 1.0 °F)
Pt100 /Pt1000 (jumper selectable); 2 or 3 wire
Auto / manual
K.Pas / mmHg (Manual setting and automatic correction)
0.0 to 50.0 ppt (Manual setting and automatic correction)
Set-point and Controller Functions
Function (switchable)
Integral time
Adjustable period with pulse length controller
Adjustable period with pulse frequency controller
Pickup / Dropout delay
Wash cycle
Wash duration
Switching Dissolved oxygen hysteresis
Contact outputs, controller
Switching voltage / current / power
P/PI control (pulse length/pulse frequency); limit control
0 to 999.9 minutes
0.5 to 20 sec.
60 to 120 pulses/min
0 to 2000 seconds
0.1 to 199.9 hours
1 to 1999 seconds
0 to 10 % of full scale
1 SPDT, 3 SPST relays
Max. 250 VAC / Max 3A / Max 600VA
Alarm Functions
Function (switchable)
Pickup delay
Switching voltage / current / power
Latching / pulse
0 to 2000 seconds
Max. 250 VAC / Max 3A / Max 600VA
Display
UV coat, backlit 14 segments display with symbols for status information
On/Off selectable with four level of brightness control
LCD
Backlight
Electromagnetic Compliance (EMC) Specifications
Emitted Interference
Immunity to Interference
According to EN 50081-1
According to EN 50082-1
Environmental Conditions
Ambient temperature operating range
Maximum Relative humidity
0 to 40 °C
80% up to 31°C decreasing linearly to 50% at 40°C
Power Supply
Input
Main Fuse
Pollution Degree
Transient Overvoltage category
80 to 250 VAC/DC 50/60 Hz Approx. 10VA
250 mA anti-surge, S504 BUSSMANN
2
II
Electrical Data and Connections
Two 0/4 to 20 mA outputs for Dissolved Oxygen and temperature, galvanically isolated.
Max. 600 Ω
Screw terminal
5-pin, 8-pin, 9-pin and 13-pin terminal, detachable blocks
Signal Output
Load
Dissolved Oxygen input
Connection terminal
Mechanical Specifications
Dimensions (W x H x D)
Weight
Environmental Rating
Wall Mount
Wall Mount
Wall Mount
144 x 144 x 111.5 mm
745g (unit) / 1100g (Packed)
IP 65 (NEMA 4X)
Ordering Information
Alpha DO 2000 Dissolved Oxygen Controller/Transmitter – Wall mount
ECDOCTP2000W
9
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