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MODEL 54e pH/ORP SPECIFICATIONS
PHYSICAL SPECIFICATIONS – GENERAL
Enclosure: Epoxy-painted aluminum
NEMA 4X (IP65)
144 X 144 X 131 mm, DIN size (5.7 X 5.7 X 5.2 in.)
Front Panel: Membrane keyboard with tactile
feedback and user selectable security. Light gray,
blue and white overlay
Light gray enclosure, dark gray bezel
Display: Back-lit dot matrix LCD (7.0 x 3.5 cm),
blue on gray-green
The display contrast is compensated for ambient
temperature.
Process Variable Character Height: 16mm (0.6 in.)
Electrical Classification:
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.
CSA-LR34186:
Max. relay contact rating: 28 Vdc; 110 Vac;
230 Vac; 6 amps resistive
FM: Max. relay contact rating: 28 Vdc resistive
150 mA - Groups A & B;
400 mA - Group C;
540 mA - Group D
Power:
Code -01: 100 - 127 VAC, 50/60 Hz ± 6%, 6.0 W
200 - 253 VAC, 50/60 Hz ± 6%, 6.0 W
Code -02: 20 - 30 VDC, 6.0 W
Current Outputs: Output 1: pH, ORP, temperature,
glass impedance, or reference impedance.
Output 2: pH, ORP, temperature, glass impedance,
or reference impedance.
Each output is galvanically isolated, 0-20 mA or
4-20 mA into 500 ohms maximum load at 24 Vdc
or 115/230 Vac or 500 ohms maximum load at
100/200 Vac. Output 1 includes digital signal
4-20 mA superimposed HART (Code -09 only).
RFI/EMI: EN-61326
LVD (Code -01 only): EN-61010-1
Ambient Temperature:
0 to 50°C (32 to 122°F)
NOTE:
The analyzer is operable from -20 to 60°C
(-4 to 140°F)
performance.
Relative Humidity: 95%, non condensing
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
Weight/Shipping Weight: 1.8 kg/2.3 kg (4 lb/5 lb)
INSTRUMENT SPECIFICATIONS @ 25°C
— pH
Measurement Range: 0 to 14 pH
Output Scale Expansion: Zero suppression: up to 13
pH units
Span: Any pH from 1 to 14
Accuracy: ± 0.01 pH
Repeatability: ± 0.01 pH
Stability: ± 0.01 pH/month, non-cumulative
Temperature Coefficient: Input: ± 0.003 pH/°C
Output: ± 0.006 pH/°C
Temperature Compensation:
Pt 100 or Pt 1000 RTD,
Automatic or Manual; –15 to 120°C (5 to 248°F)
INSTRUMENT SPECIFICATIONS @ 25°C
— ORP
Measurement Range: –1400 to +1400 mV
Output Scale Expansion: Zero suppression: up to
±1300 mV
Span: Any ORP range from 100 to 2800 mV
Accuracy: ± 1.0 mV
Repeatability: ± 1.0 mV
Stability: ± 1.0 mV/month, non-cumulative
Temperature Coefficient: Input: ± 0.2 mV/°C
Output: ± 0.4 mV/°C
Temperature Measurement: –15 to 120°C (5 to 248°F)
Pt 100 or Pt 1000 RTD
Sira MC070111/00