Specifications
VersaPro Temperature Controller Page 65
Copyright © 2013, United Process Controls Inc. All rights to copy, reproduce and transmit are reserved
20 Technical Specification
20.1 Environmental ratings
Panel sealing: Instruments are intended to be panel mounted. The rating of panel sealing is
IP64.
Operating temperature: 0 to 55
o
C. Ensure the enclosure provides adequate ventilation.
Relative humidity: 5 to 95%, non-condensing.
Atmosphere: The instrument is not suitable for use above 2000m or in explosive or corrosive
atmospheres.
20.2 Equipment ratings
Supply voltage: 100 to 240Vac -15%, +10%, or optionally:
Supply frequency: 48 to 62Hz.
Power consumption: 15 Watts maximum.
Relay 2-pin (isolated): Maximum: 264Vac, 2A resistive. Minimum: 12Vdc, 100mA.
Relay changeover (isolated): Maximum: 264Vac, 2A resistive. Minimum: 6Vdc, 1mA.
Over current protection: External over current protection devices are required that match the wiring of the
installation. A minimum of 0.5mm
2
or 16awg wire is recommended. Use
independent fuses for the instrument supply and each relay output. Instrument
supply: 85 to 264Vac, 2A.
Relay outputs: Triac outputs: 1A.
Low level I/O: All analog input and output connections are intended for low level signals less
than 24VDC.
DC output (Isolated): 0 to 20mA (650 max), 0 to 10V (using a 500 dropping resistor).
Fixed digital inputs: Contact closure. (common to internal 5VDC source.)
DC or PV input: As main input plus 0-1.6Vdc, Impedance, >100M. (isolated.)
Transmitter supply: 30Vdc at 20mA. (isolated.)
Digital Comms: EIA-485 half duplex. (isolated).
20.3 General
Thermocouple input: Type B, K, R, and S accuracy after linearization +/- 1 deg F
Millivolt input : 0 to 2000 millivolts +/- 0.1 millivolt
Cold junction compensation: 0 to 60°C +/- 1 deg F
Calibration accuracy: The greater of +0.2% of reading, +1 LSD or +1
o
C.
Isolation: 1000V DC/AC
Power input to signal inputs
Power input to communications
Calculations: Percent carbon 0 – 2.55% (no CO compensation)
Dewpoint -99 – 212 °F (no hydrogen compensation)
Percent oxygen. 0 – 20.9%
(Small oxygen concentrations can be measured by changing the exponent
setting.)
Accuracy: +/- 1 of LSD of process value.
Probe Care: Probe verification and impedance for oxygen probes.
Communications port: RS-485 Half Duplex Only
Protocol: 10Pro, MMI block transfer, or Modbus RTU
Baud rates: 1200, 2400, 4800, 9600, 19.2K