MODEL 54E CONDUCTIVITY ANALYSER

THIS PRODUCT HAS BEEN DISCONTINUED


Model 54eC Analyser
Model 54eC Analyser

  • USES EITHER CONTACTING OR INDUCTIVE CONDUCTIVITY SENSORS.
  • HEAVY DUTY NEMA 4X (IP65) ENCLOSURE OF EPOXY-PAINTED CAST ALUMINIUM.
  • FULLY DESCRIPTIVE DIAGNOSTIC MESSAGES.
  • TWO INDEPENDENT OUTPUTS: CONDUCTIVITY, TEMPERATURE OR CONTROL.
  • THREE ALARM OR CONTROL CONTACTS WITH PROGRAMMABLE LOGIC PLUS A FAULT ALARM OUTPUT.

Features and Applications

The Model 54e Conductivity Analyser, with the appropriate sensor, monitors and controls conductivity in a variety of industrial processes using the most advanced technology available.  The analyser can use either contacting or inductive (toroidal) conductivity sensors. The sensor type is selected by keyboard entry. This feature allows the user to stock one instrument for most conductivity applications.  The analyser is housed in a rugged NEMA 4X (IP65) weatherproof, corrosion resistant enclosure of epoxy-painted cast aluminium. It is suitable for panel, pipe or wall mounting. All functions are accessible through the front panel membrane keyboard which features tactile feedback. The large dot-matrix liquid crystal display continuously indicates conductivity, temperature, current output, and alarm setpoints. Three levels of security are available: 1) calibration, 2) output range and alarm setpoint adjustment and 3) advanced configuration.  A hinged front panel provides convenient wiring access.  The two independent, isolated outputs provide 4-20 or 0-20 mA signals for conductivity, temperature or PID control (PID control not available on 450/0170).  Both output ranges are programmable within the measurement ranges of conductivity and temperature.  A hold output mode allows manual control during routine sensor maintenance. During hold mode the current outputs will be held at a preset or last process value.  In the event of a fault, the analyser will display a descriptive diagnostic message, illuminate a red LED on the front panel and drive the outputs to pre-selectable fault mode values. A dedicated fault relay may be used to provide a visual or audible alarm to an operator. All operations and descriptive messages can be field selected for English, French, German, Italian or Spanish.

Three output relays are a standard feature and each may be configured as an alarm or time proportioned control.  Alarms have programmable high or low activation, independent setpoints, adjustable hysteresis (deadband), and time delay.  Control outputs use fully configurable PID algorithms with adjustable cycle timers (not available on 450/0170).  One relay may be configured as a timer for automatic chemical cleaning of the sensor. Green LED’s on the front panel indicate the status of each of the three alarm relays. Standardization is easily accomplished by simply immersing the sensor in a known solution and entering the value. With a two point calibration, the analyser will automatically calculate the temperature slope of the solution.  The Model 54e Conductivity utilizes either a PT-100 or a PT-1000 RTD located in the sensor to display temperature and compensate the conductivity reading for changes in process temperature. Manual temperature compensation is also keyboard selectable.

Physical Specifications - General

Enclosure
Epoxy-painted cast aluminium
NEMA 4X (IP65)
144 X 144 X 132mm, DIN size
(5.7 X 5.7 X 5.2 in.)

Front Panel
Membrane keyboard with tactile feedback and user selectable security. Light grey, blue and white overlay. Light grey enclosure, dark grey bezel.

Display
Dot matrix LCD (7.0 x 3.5 cm), blue on grey-green.  The display contrast is compensated for ambient temperature.

Process Variable Character Height
16mm (0.6 inch)

Power
115 Vac, ± 10%, 50/60 Hz ± 6%, 6.0 W,  230 Vac, ± 10%, 50/60 Hz ± 6%, 6.0 W

Current Outputs
Output 1: Conductivity
Output 2: Conductivity or temperature
Either output can be process or control (process only on 450/0170).
Each output is galvanically isolated,
0-20 mA or 4-20 mA into 600 ohms maximum load.

EMI/RFI    EN50081-2
                 EN50082-2
LVD           EN61010-1

Ambient Temperature
0 to 50˚C (32 to 122˚F)
NOTE: The analyser is operable from -20 to 60˚C (-4 to 140˚F) with some degradation in display performance.

Relative Humidity
95%, non-condensing

Alarms
Relay 1 - Process alarm, control* or timer**
Relay 2 - Process alarm, control* or timer**
Relay 3 - Process alarm, control* or timer**
Relay 4 - Fault alarm
Each relay has a dedicated LED on the front panel.
* no control option on 450/0170
**maximum 1 interval timer

Relay Contacts
Relays 1-3: Epoxy sealed form A
contacts, SPST, normally open.
Relay 4: Epoxy sealed form C, SPDT.


Resistive
Inductive
28 Vdc
5.0 Amps
3.0 Amps
115 Vac
5.0 Amps
3.0 Amps
230 Vac
5.0 Amps
1.5 Amps

Weight/Shipping Weight
1.1 kg/1.6 kg (2.5 lb/3.5 lb)

Instrument Specifications @ 25˚C

Measurement Range
See table below
–15 to 200˚C  (5 to 392˚F)

Accuracy

±0.5% of reading

Repeatability
±0.25% of reading

Stability
±0.25% of output range

Ambient Temperature Coefficient

 ±0.01% of reading/˚C

Temperature Compensation
-15 to 200˚C (automatic or manual)

Temperature Slope Adjustment

0-5%/˚C

The Model 54e Conductivity is compatible with both contacting and inductive (toroidal) conductivity sensors and measures over the range of 0-1 µS/cm to 0-2,000 mS/cm. Inductive conductivity sensors have no electrodes exposed to the measured solution, which practically eliminates routine sensor maintenance. The analyser features a 0-5%/˚C temperature slope adjustment.  Temperature slope may be adjusted to provide greater accuracy in chemical concentration control. The temperature slope is factory set at 2% as a representative value, but each conductive solution has its own set of temperature vs. concentration curves. The Model 54e Conductivity will automatically calculate the temperature slope for any given solution, or permit manual adjustment of the temperature slope if already known. The analyser will also automatically correct for cell constant variations for better measurement accuracy.


Contacting Sensors
Inductive Sensor
Conductivity Sensor
Model Number
142, 150, 400,
402,403
140, 141, 150, 400,
402,403
228
Cell Constant
0.1
1.0
3.0
Minimum Range
uS/cm – Full Scale
20
200
250
Maximum Range
uS/cm – Full Scale
2000
20,000
2,000,000


Ordering Information

Model 54e Conductivity Transmitter
450/0170
Model 54e Conductivity Controller
450/0175
Pipe/Wall Mounting Kit
500/9501
Panel Mounting Kit
500/9511


ce



model 54ec instructions

Model 54eC instructions
1.08MB pdf

Page reviewed: 6th June 2014