|Enclosure Material||Plastic (Polycarbonate), Sstainless Steel without Painting, Epoxy Coated SS, Urethane Coated SS||Cast Aluminim with chemically resistance coating; polycarbonate cover with polycarbonate flexible windowm|
|Housing Rating||IP66/ NEMA 4A/ CSA 3S||IP66/ NEMA 4A/ CSA 3S|
|Power Supply||2-wire 24VDC, Loop Powered||4-Wire 110-256 VAC, Mains Power|
|Output Signal||Bi-directional HART digital communication, superimposed on mA (4-20mA) signal.||Two isolated outputs of 4 to 20 mA DC with common negative.|
- Differential, ratio or calculated outputs
- Universal conductivity/resistivity, software switchable
- On-line sensor checking
- Self-tuning measuring signal
- Matrix temperature compensation for pure water applications
- Four fully configurable SPDT contact outputs
- Two fully configurable mA outputs
- Built-in PI controller
- Easy to use EXA control panel
- USP 23 monitoring
|Input specification||Two inputs, each 2-electrode measurement with square wave excitation, using cell constants(C) from 0.008 to 50.0 cm-1, with up to 60 meters connection cable|
|Detection method||Frequency, read-pulse position and reference voltage are dynamically optimized.|
Minimum: 1 μS/cm at process temp. (under range 0.000 μSx C).
Maximum: 25 mS/cm at process temp. (over range 30 mS x C)
Resistivity: 0.00 kΩ/C to 999 MΩ/C at 25℃ (77℉) reference temperature. Minimum: 40 Ω/C at process temp. (under range 0.001 kΩ x cm).
Maximum: 1 MΩ/C at process temp. (over range 999 MΩ x cm).
Pt1000: -20 to 250℃ (0 to 500℉)
Pt100 and Ni100: -20 to 200℃ (0 to 400℉)
8k55NTC: -10 to 120℃ (10 to 250℉)
PB36 NTC: -20 to 120℃ (0 to 250℉)
|Conductivity/Resistivity||Linearity: ±0.5 % FS
Repeatability: ±0.5 % FS
Accuracy: ±0.5 % FS
|Temperature Accuracy||Pt1000Ω, Ni100Ω and PB36 NTC
PT100Ω and 8k55Ω
|Step Response||90 % (< 2 decades) in ≤6 seconds|
Min. span: 0.010 μS/cm; 0.001 kΩ x cm up to 90 % zero suppression.
Max. span: 1500 mS/cm; 999 MΩ x cm
Ratio (cell1/cell2): Min. span: 00.0, Max. span: 19.99
Difference (cell1-cell2): Min. span: 0.010 μS/cm, Max. span: 400 mS/cm
% Passage (100 x [cell2/cell1]): Min. span: 00.0, Max. span: 199.9
% Rejection (100 x [(cell1-cell2)/cell1]): Min. span: 0.1, Max. span: 400
% Deviation (100 x [(cell2-cell1)/cell1]): Min. span: 0.1, Max. span: 400
Temperature: Min. span: 25℃ (50℉), Max. span: 250℃ (500℉)
Difference Temperature: Min. span: 25℃ (50℉), Max. span: 250℃ (500℉)
|Transmission Signals||Two isolated outputs of 0/4 to 20 mA DC with common negative. Maximum load; 600Ω. Auxiliary output can be chosen from conductivity, linearized conductivity/resistivity, temperature, differential temperature calculated value or PI control of conductivity/resistivity. Burn up (22 mA) or Burn down (0/3.5 mA) to signal failure.|
|Temperature compensation||Automatic, for temperature ranges.
Reference temperature: Programmable from 0 to 100℃ (30 to 210℉ (default 25℃ ).
|Compensation algorithm||According IEC 60746-3 NaCl tables (default).Two independent user programmable temperature coefficients, from 0 to 3.5 % per℃ (deg F) by adjustment or calibration.
Matrix compensation: With conductivity function of concentration and temperature. Choice of 5 preprogrammed matrices and a 25-points user-programmable matrix.
|Display||Custom liquid crystal display, with a main display of 3 1/2 digits 12.5 mm high.|
|Contact Outputs||Four (4) SPDT relay contacts with LED indicators.|
|Housing||Cast aluminum case with chemically resistant coating, cover with flexible polycarbonate window. Weather resistant to IP65 / NEMA 4X / CSA Type 3S standards. Pipe wall or panel mounting, using optional hardware.|
|Power Supply||Supply voltage rating: 115, 230 V AC, Applicable range: 97.8 to 132.2 /195.5 to 264.5 V AC
Supply frequency rating: 50/60 Hz, Applicable range: 50/60 Hz ± 5%
Power consumption: Maximum 10 VA for steady operation
The model FLXA21® two-wire analyzer is used for continuous on-line measurements in industrial installations. It offers an option for single or dual sensor measurement, making it the most flexible 2-wire analyzer available. The model FLEXA21® modular-designed series analyzer.
- One analyzer can accept any of 4 types of measurements; pH/ORP, Contacting Conductivity (SC), Inductive Conductivity (ISC) and Dissolved Oxygen (DO)
- Dual sensor measurement on a 2-wire type analyzer pH/ORP and pH/ORP, SC and SC, and DO and DO
- Modular design: replaceable sensor modules
- Redundant system on dual sensor measurement
- Variety of matierals of construction: SS or Plastice
- Intuitive easy touch screen operation on 2-wire type analyzer
- Unique HMI menu structure in 12 languages
- Quick setup menu for fast and east measurement operation
- Online Sensor Wellness checking for predictive maintenance
- NEMA 4X / IP66 Enclosure
Two or four electrode measurement with square wave excitation, using max. 60 m cable and cell constants from 0.005 to 50.0 cm-1
|Input Range||Conductivity: 0 to 2000 mS/cm at 25ºC (77°F)
Temperature: -20 to 140ºC (0 to 280°F)
|Conductivity||2 µS x K cm-1 to 200 mS x K cm-1
Accuracy: ±0.5% F.S.
1 µS x K cm-1 to 2 µS x K cm-1
Accuracy: ±1% F.S.
|Resitivity||0.005kΩ/ K cm-1 to 0.5MΩ/ K cm-1
Accuracy: ±0.5% F.S.
0.5MΩ/ x K cm-1 to 1MΩ/ x K cm-1
Accuracy: ±1% F.S.
|Temperaure||with Pt1000, Pb36, Ni 100
Accuracy: ± 0.3ºC
with Pt100, NTC 8k55
Accuracy: ± 0.4ºC
|Step Response||≤7 seconds for 90% (for a 2 decade step)|
|Cable Length||Max 60 meters (200 feet). 10 meters (35 feets0 fixed sensor cable + 50 meters (165 feets) WF10 extension cable|
|Transmission Signal||Bi-directional HART digital communicaiton, superimposed on mA (4-20 mA) signal|
|Temperature Compensation||Automatic or manual, for temperature ranges.
Reference temp. programmable from 0-100°C or 30-210°F (default 25°C)
|Calibration||Semi-automatic calibration using pre-configured OIML (KCl) standard tables, with automatic stabilit check. Manual adjustment to grab sample.|
|Display||Black and white, 213 x 160 pixels LCD wiht a touch screen|
|Housing||Plastic (polycarbonate), Stainless Steel wihtout painting, Epoxy Coated Stainless Steel, Urethane Coated Stainless Steel
Protection IP66/ NEMA4X/ CSA Type 3S
|Environment||Ambient Temperature: -20 to 55°C
Humidity: 10 to 90% RH at 40°C (non-condensig)
|Power Supply||Ratings; 17 to 40 V DC|