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SC450G Conductivity/Resistivity Converter
Brand: Yokogawa Electric CorporationThe EXAxt 450 series is designed to combine the superior functionality of the Yokogawa EXA series with the ease of use offered in pocket computers (PDA).
Truly unique is the EXAxt 450 series in the Human Machine Interface.
The high resolution graphical display and the touch screen operation make all information visible to the operator.
Configuration with the touch screen is as easy as operating a PDA.
Simply choose the language of choice and on screen instructions assure that the best configuration for the application is obtained.
The EXAxt 450 offers full functionality with PID control on either mA output(s) or on contact output(s).
The contact outputs can be selected as pulse frequency controlled or pulse length controlled contact function to control chemical metering pumps or solenoid valves.
Specifications
Accuracy
- ≤ 0.3° C (0.54° F) [≤ 0.4° C (0.72° F) for Pt100]
- ≤ 0.5 % of Reading - Conductivity/Resistivity
- ≤ 4 seconds for 90 %
Alarm
- High/Low Process Alarms
Ambient Temperature Range
- -20° to 55° C (-5° to 130° F)
Approvals & Certifications
- CSA C22.2 No.61010-1
- EMC: EN 61326-1 Class A, EN 61326-2-3, EN 61000-3-2 Class A, EN 61000-3-3
- FM Non-Incendive Approval: FM3611 Class I, Div. 2, Groups A, B, C, D
- KC
- NAMUR NE43
- RCM: EN 61326-1 Class A
Burn-Out
- Burn Down 3.6 mA
- Burn Up 21 mA
Cable Length
- 200 feet (60 metres)
Calibration
- Semi-Automatic Calibration
Communication
- HART
Conduit Connection
- 1/2” NPT Female
- G 1/2” Female
- M20 Female
Consumption
- 10 W - Power Consumption
- 15 VA - Power Consumption
Control Functions Characteristics
- ON/OFF
- PID Control
Display
- Graphical Quarter VGA (320 x 240)
- LCD with LED Backlight
Electrical Rating
- Maximum
Enclosure Finish
- Silver Gray
Enclosure, Body Material
- Cast Aluminim
- Polycarbonate
Environmental Protection
- IP66
- NEMA 3S
- NEMA 4X
Frequency
- 50 Hz ± 5 % - Acceptable Range
- 50/60 Hz - Ratings
- 60 Hz ± 5 % - Acceptable Range
Function
- Linear
- Non-Linear
Humidity
- 0 to 90 % Non-Condensing
Input
- 0 µS/cm to 2,000 ms/cm - Conductivity
- 1 µS/cm Min. (Underrange 0.00 µS x C)
- 200 ms/cm, Max.
Input Impedance
- 100 kiloohms - Contact Open
- 0 to 1,000 megaohms - Resistivity
- 1 Megaohm/cm, Max.
- 5 ohms/cm Min.
Load Impedance
- 600 ohms - Max.
Materials of Construction
- Stainless Steel - Tag Plate
Mounting
- Field Mounting
- Panel Mounting
- Pipe Mount
- Universal Mounting
- Wall Mounted
Output
- Four SPDT Relay Contacts with Display Indicators
PID Configuration
- PID Duty Cycle
Power
- 100-240 Vac - Ratings
- 90-264 Vac - Acceptable Range
Response Time
- ≤ 4 seconds for 90 % - Step Response
Sensor, Probe Type
- Ni100
- NTC 8k55
- PB36
- Pt100
- Pt1000
Storage Temperature
- -30° to 70° C (-22° to 158° F)
Supply Voltage
- 10.8-26.4 Vdc - Acceptable Range
- 12-24 Vdc - Ratings
Temperature Coefficient
- 0 to 3.5 %/°C (°F)
Temperature Range
- -20° to 250° C (-4° to 482° F)
Tolerance
- Output Tolerance: ± 0.02 mA
