Omega Engineering CN 79000 Specifications, Input Impedance, Fuzzy Percent 0 to 100%, Isolation

SPECIFICATIONS

Input: Thermocouple.

Input Impedance:

Thermocouple = 3 megohms minimum.

Sensor Break Protection: De-energizes control output to protect system after customer set time. (See InP1 and InP2 in Secondary Menu.)

Set Point Range: Selectable (See Range Chart Page 39).

Display: Two 4 digit, 7 segment 6.35 mm (0.25") high LEDs.

Control Action: Reverse (usually heating), Direct (usually cooling) select- able.

Proportional Band: 1 to 9999 °F, °C, or counts.

Reset Time (Integral): Off or 0.1 to 99.9 minutes.

Rate Time (Derivative): Off or 0.01 to 99.99 minutes.

Cycle Rate: 1 to 80 seconds.

On - Off Differential: Adjustable 1° F, 1° C, or 1 count to full scale in 1° F, 1° C, or 1 count steps.

Fuzzy Percent: 0 to 100%.

Fuzzy Rate: Off or 0.01 to 99.99 minutes.

Fuzzy Band: Off or 1 to 4000 °F, °C, or counts.

Accuracy: ±0.25% of span, ±1 least significant digit.

Resolution: 1 degree or 0.1 degree, selectable.

Line Voltage Stability: ±0.05% over the supply voltage range.

Temperature Stability: 100 ppm /°C typical, 200 ppm /°C maximum.

Common Mode Rejection: 140 db minimum at 60 Hz.

Normal Mode Rejection: 65 db typical, 60 db at 60 Hz.

Isolation:

Relay outputs: 1500 Vac to all other inputs and outputs.

Supply Voltage: 100 to 240 Vac, nominal, +10 -15%, 50 to 400 Hz. single phase; 132 to 240 Vdc, nominal, +10 -20%.

Supply Voltage (Option LV): 12 to 24 Vdc, Vac 40-400 Hz, ±20%.

Power Consumption: 5VA maximum.

Operating Temperature: -10 to +55 °C (+14 to 131 °F).

Page 35 of 40