FEATURES AND APPLICATIONS—GENERAL
The Model 54e family of analyzers, with the appropriate
sensors, monitor and control pH/ORP, conductivity/resistivity, dissolved oxygen (ppm and ppb level), free chlorine,
total chlorine, or ozone in a variety of process liquids.
The analyzer/controller is housed in a rugged NEMA 4X
(IP65) weatherproof, corrosion resistant enclosure of
epoxy-painted aluminum. It is suitable for panel, pipe or
wall mounting. All functions are accessible through the
front panel membrane keyboard that features tactile feedback. The large back-lit dot-matrix liquid crystal display
continuously indicates the measured variable in large
numerals, along with the temperature, output value and
two programmable process parameters (such as alarms or
diagnostics variables). 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. All operations
and descriptive messages can be field selected for English, French, German, Italian, or Spanish.
The Model 54e is a member of the Rosemount SMART
FAMILY®of instruments which is designed to communi-
cate with the Model 275 HART
®
hand-held communicator
and any other host, including AMS, that supports the 275
HART communication protocol.
The two independent, isolated outputs provide 4-20 or
0-20 mA signals for the process measurement and temperature. The controller option also allows PID control
choices acting on process measurement or temperature.
Manual control of the output may also be selected for
routine maintenance and tests.
Three process alarms are a standard feature. All alarms
have programmable high or low activation, independent
setpoints, adjustable hysteresis (deadband), and time
delay. One relay may be configured as a timer relay for
chemical cleaning, which may be activated at a specific
time interval. An overfeed timer feature is also selectable
for any one process relay. The control option allows each
alarm the additional choice of Time Proportional Control.
During any relay activation, a corresponding Green LED is
illuminated.
®
SMART FAMILY is a registered trademark of Rosemount Inc.
®
HART is a registered trademark of the HART Communication Foundation.
SPECIFICATIONS - GENERAL
Enclosure: Epoxy-painted (dark gray) cast aluminum,
NEMA4X (IP65). 144 x 144 x 132 mm
(5.7 x 5.7 x 5.2 in.), DIN size panel cut-out.
Front Panel: Membrane keypad with tactile feedback.
Three green LEDs indicate alarm status. Red LED
indicates fault condition.
Display: Three-line, back-lit, dot matrix LCD, 70 x 35 mm.
First line is measurement reading. Second line is temperature and current output. Third line is user-selectable. Character heights: 1st line - 16 mm (0.6 in.),
2nd and 3rd lines - 7 mm (0.3 in.).
Hazardous Location Approvals:
Class I, Division 2, Groups A, B, C, & D.
T5 Ta=50°C. Dust ignition proof: Class II,
Division 1, Groups E, F, & G; Class III.
FM: Max. relay contact rating: 28 Vdc
resistive
150 mA - Groups A & B;
400 mA - Group C;
540 mA - Group D
CSA:
Max. relay contact rating:
28 Vdc; 110 Vac; 230 Vac;
6 amps resistive. Enclosure Type 4.
Power:
Code -01: 100 - 127 Vac, 50/60 Hz ± 6%, 8 W
200 - 253 Vac, 50/60 Hz ± 6%, 8 W
Code -02: 20 - 30 VDC, 6 W
RFI/EMI: EN-61326
LVD (Code -01 only): EN-61010-1
Outputs: Two 4-20 mA or 0-20 mA isolated outputs.
Continuously adjustable. Outputs can be assigned to
the primary measurement, glass impedance (pH
only), reference impedance (pH only), or temperature.
Output dampening is user-selectable. Maximum load
at 24 Vdc or 115/230 Vac is 500 ohms. Maximum
load at 100/200 Vac is 500 ohms. Output 1 has
superimposed HART signal (option -09 only).
Outputs can be programmed for PID control (option
-20 only).
Output Accuracy: ± 0.05 mA
Alarms:
Relay 1 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 2 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 3 - Process, Interval, or Time Proportional
Control (TPC requires code -20)
Relay 4 - Sensor/analyzer and process fault alarm
Each relay has a dedicated LED on the front panel.
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
Temperature Sensors Accepted: Pt 100 RTD,
Pt 1000 RTD, 22K NTC thermistor (54eA only).
Ambient Temperature: 0 to 50°C (32 to 122°F). Analyzer
can be operated between -20 and 60°C (-4 to 140°F)
with some degradation in display quality.
Relative Humidity: 95% (maximum) non-condensing
Weight/Shipping Weight: 4 lb/5 lb (1.8 kg/2.3 kg)
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