Omega Products CDTX-45T2 User Manual
Toroidal Conductivity System
CDTX-45T Series
U Concentration or Conductivity Models
U Loop-Powered, AC, or Battery Versions
U Dual Alarm Relays/Analog Outputs
U Large, 2-Line Display
The CDTX-45T toroidal conductivity system is designed for
online monitoring of chemically aggressive process solutions,
water applications and plating bath operations. The sensor
consists of 2 metallic ribbon coils that are fixed in place by
the sensor jacket material. The drive coil is used to induce
a current in the process solution. The second sensing coil
is used to measure the current in the process solution; the
magnitude of this current is proportional to the conductivity
of the process solution. Toroidal sensor is available in Noryl.
The sensor material is non-conductive, thereby isolating
the sensor from electrical noise and ground loops that can
influence the integrity of the measurement. This material also
makes the sensor resistant to electrode coating. Sensors can
be submersion mounted for easy installation in open tanks or
pipe mounted in the optional 2" tee fitting, which is keyed to
the sensor for proper alignment. Tee fitting material contains
polypropylene. For larger pipe diameters, the sensor can
be insertion mounted through a 11⁄2 NPT ball valve for easy
retraction. The CDTX-45TC is the concentration monitor.
The monitor comes with concentration/temperature tables for
sodium hydroxide, potassium hydroxide, hydrochloric acid,
nitric acid, and sulfuric acid. A configurable table allows the
user to enter data points for a custom concentration curve.
Specifications
Common Specifications
Main Parameter Ranges: Automatic or manual selection of one of
the following display ranges; 0 to 2000 µS, 0.0 to 2.000 mS, 0.00
to 20.00 mS, 0.0 to 200.0 mS, 0 to 2000 mS, 0.000 to 2.000 S
Accuracy: 0.5% range (± 2 µS)
Repeatability: 0.2% range (± 2 µS)
Sensitivity: 0.05% range (± 2 µS)
Stability: 0.2% range per 24 hours
Warm-up Time: 7 sec to rated performance
Supply Voltage Effects: ± 0.05% of user range (dc version only)
Response Time: 6 sec to 90% of step input at lowest setting
Temperature Drift: Span or zero, 0.04% of span/°C
Display: Large, high-contrast, super-twist (STN) LCD; 4-digit
main display with sign, 19.1 mm (0.75") seven-segment
characters 12-digit secondary display, 7.6 mm (0.3") 5 x 7 dot
matrix characters
Keypad: 4-key membrane type with tactile feedback,
polycarbonate with UV coating
Weight:
DC Transmitter Configuration: 0.45 kg (1 lb)
Line Powered Unit: 0.68 kg (1.5 lb)
Operating Ambient: -20 to 60°C (-4 to 140°F); 0 to 95% RH,
non-condensing
EMI/RFI Influence: Designed to EN 61326-1
Output Isolation: 600V galvanic isolation
Filter: Adjustable 0-9.9 minutes additional damping to 90%
step input
Temperature Input: Pt1000 RTD with automatic compensation
CDTX-45T1, shown
smaller than actual size.
Sensor:
Type: Fully isolated, toroidal electrode sensor design for direct
measurement; ³⁄₄ NPT process connection
Wetted Material: Noryl
Pressure Limit: 10 bar (150 psig) maximum
Temperature Range: 0 to 105°C (32 to 221°F)
Sensor Cable: 6.1 m (20'); 6-conductor cable
CDTX-45T1 Loop-powered Transmitter
Power: 18 to 35 Vdc, 2-wire
Enclosure: NEMA 4X (IP66), polycarbonate, stainless
steel hardware, weatherproof and corrosion resistant,
112 mm2 x 89 mm D (4.4 x 2 x 3.5")
Mounting: Wall or pipe mount bracket standard. Bracket suitable
for either 1.5 or 2" ID U-Bolts for pipe mounting. Conduit openings
two PG-9 openings with gland seals, one 1 NPT opening with plug
Cable: Belden twisted-pair, shielded, 22 AWG or larger
Insertion Loss: 18 Vdc
CDTX-45T2 and CDTX-45T3 Dual Relay Models
Power: 115/230 Vac ±10%, 50/60 Hz, 10 VA max
Enclosure: NEMA 4X (IP66), polycarbonate, stainless
steel hardware, weatherproof and corrosion resistant,
124 x 2 x 139 mm D (4.9 x 2 x 5.5")
Mounting: Wall or pipe mount bracket standard; bracket suitable
for either 1.5 or 2" ID U-Bolts for pipe mounting; panel mount
adaptor optional
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Conduit Openings: Three M16 openings; gland seals plus two
¹⁄₂" conduit adaptors, supplied but not installed
Relays, Electromechanical: Two SPDT, 6 A @ 250 Vac, 5 A @
24 Vdc contacts; programmable for setpoint, phase, delay,
deadband, hi-lo alarm, and failsafe; A-B indicators on main display
Analog Outputs: Two 4 to 20 mA outputs; output one
programmable for conductivity or PID; output 2 programmable for
conductivity, temperature, or TDS. Max load 500 Ω for each output
Outputs ground isolated and isolated from each other
CDTX-45T4 and CDTX-45T5 Battery Powered Models
Power: 9 Vdc alkaline battery, low battery indication at 6.75 Vdc.
Lithium 9 Vdc battery recommended for max performance
Battery Life: Approx 100 hrs, alkaline; use of lithium cell
increases life to approx 300 hrs
Enclosure: NEMA 4X (IP66), polycarbonate, stainless
steel hardware, weatherproof and corrosion resistant,
112 x 2 x 89 mm D (4.4 x 2 x 3.5"); mounting
options supplied with carrying handle and cable
glands installed
Analog Outputs (CDTX-45TC4): Two 0 to 2.5 Vdc
isolated outputs
Data Logger (CDTX-45TC5): Removable data module holds
32,000 points from two user configured channels, time of logging
is user configurable; software supplied for data download
and display
Weight:
Loop-Powered Transmitter: 0.45 kg (1 lb)
Other Configurations: 0.68 kg (1.5 lb)
Display: Large, high-contrast, super-twist (STN)
LCD 4-digit main display with sign, 19.1 mm (0.75")
7-segment characters; 12-digit alphanumeric secondline display, 7.6 mm (0.3") 5 x 7 dot matrix characters
Keypad: 4-key membrane type with tactile feedback,
polycarbonate with UV coating, integral EMI/static
shield and conductively coated window
Ambient Temperature:
Operating: -20 to 60°C (-4 to 140°F)
Storage: -30 to 70°C (-22 to 158°F)
Ambient Humidity: 0 to 95% RH, non-condensing
Location: Designed for hazardous and non-hazardous areas
EMI/RFI Influence: Designed to EN 61326-1
Output Isolation: 600V galvanic isolation
Filter: Adjustable, 0 to 9.9 minutes additional damping to
90% step input
Temperature Input: Selectable Pt1000 or Pt100 RTD with
automatic compensation
CDE-45T2, Noryl
electrode, shown
actual size.
®
To Order Visit omega.com/cdtx-45t for Pricing and Details
Model No. Description
Conductivity Analyzer
CDTX-45T1 Loop powered 16 to 35 Vdc, 2-wire
(4 to 20 mA output)
CDTX-45T2 120 Vac, 2 relays, two 4 to 20 mA outputs
CDTX-45T3 230 Vac, 2 relays, two 4 to 20 mA outputs
CDTX-45T4 Battery operated (9V), two 0 to 2.5 Vdc outputs
CDTX-45T5 Battery operated (9V), internal data logger
Concentration Analyzer
CDTX-45TC1 24 Vdc, 2-wire (single output only)
CDTX-45TC2 120 Vdc, 2 relays
CDTX-45TC3 230 Vdc, 2 relays
CDTX-45TC4 Battery operated, two 0 to 2.5 Vdc outputs
CDTX-45TC5 Battery operated, internal data logger
Sensor with 6.1 m (20') Cable**
CDE-45T2 Noryl
®
electrode
Accessories
Model No. Description
CDTX-45T-JB NEMA 4X (IP66) junction box
CDTX-45T-C(*) Sensor-interconnect cable; *specify length in feet, 180' max
CDTX-45T-PT 51 mm (2") keyed slip-fit flow cell for use with polypro sensors
CDTX-45T-SMK Submersible mounting kit for PEEKTM sensor
CDTX-45T-PMK Panel mount kit for analyzer
Comes complete with operator’s manual.
For cable lengths over 6.1 m (20'), order CDTX-45T-JB junction box and CDTX-45T-C(*) interconnect cable of desired length.
**
Example: CDTX-45T-C100, 30.5 m (100') cable.
Ordering Examples: CDTX-45T2, 120 Vac conductivity analyzer, and CDE-45T2, toroidal conductivity cell.
CDTX-45T1, 16 to 35 Vac powered conductivity analyzer and CDE-45T2 toroidal conductivity cell.
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