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Ordinary Locations:
Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a
temporary conductivity caused by condensation must be expected.
Altitude: for use up to 2000 meter (6562 ft.)
RFI/EMI: – EN-61326
LVD: – EN-61010-1
Input: One or two isolated sensor inputs. Measurement choices of pH/ORP, resistivity/conductivity/
TDS, % concentration, ratio conductivity, total and free chlorine, monochloramine, dissolved
oxygen, dissolved ozone, turbidity, pulse flow, temperature and raw 4-20mA input. For
contacting conductivity measurements, temperature element must be a Pt1000 RTD. For
other measurements (except ORP, flow and turbidity), use either a PT100 RTD, PT1000 RTD, or
22k NTC (D.O. only).
Outputs: Four 4-20 mA or 0-20 mA isolated current outputs. Fully scalable. Max Load: 550 Ohms.
Output 1 superimposes the HART digital signal. Outputs can be programmed for PID control.
Output dampening can be enabled with time constants from 0 to 999 seconds. HART digital
communications transmitted via current output 1 is standard on all units (option code –HT).
Alarms: Four alarm relays for process measurement(s) or temperature. Any relay can be
programmed for any measurement, timer, TPC or fault alarm operation, instead of a process
alarm. When selected, a fault alarm will activate the relay when a sensor or analyzer fault occurs.
Each relay can be configured independently. Alarm logic (high or low activation or USP*) and
deadband are user-programmable.
*USP alarm can be programmed to activate when the conductivity is within a user-selectable percentage of the limit.
conductivity/resistivity measurement only)
Relays: Form C, SPDT, epoxy sealed
Inductive load: 1/8 HP motor (max.), 115/240 VAC
Terminal Connections Rating:
Power connector (-02 24VDC power supply and -03 85-264VAC power supply): 24-12 AWG
wire size.
Signal board terminal blocks: 26-16 AWG wire size.
Current output connectors: 26-16 AWG wire size.
Alarm relay terminal blocks: 24-12 AWG wire size.
Weight/Shipping Weight: (rounded up to nearest lb or nearest 0.5 kg): 3 lbs/4 lbs (1.5 kg/2.0 kg)
Description and Specifications 3
Instruction Manual Clarity II T56
PN-51-T56 May 2012
Maximum Relay Current
Power Input Resistive
28 VDC 5.0 A 5.0 A
115 VAC 5.0 A 5.0 A
230 VAC 5.0 A 5.0 A
LISTED