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Ohkura

Comparison of Digital Controllers
Ohkura vs. Omron, Fuji, and Yokogawa M&C

  Ohkura Omron Fuji Yokogawa M&C
Products EC5500S E5AK-A PYX9 UP350
Input TC: 23 type, Pt100: 5 type, JPt100: 5 type, mV: 3 type, V: 2 type, mA 1 type TC: 12 type, Pt100: 1 type, JPt100: 1 type, V: 3 type, mA 2 type TC: 11 type, Pt100: 1 type, JPt100: 1 type, V: 2 type, mA 1 type TC: 14 type, Pt100: 3 type, JPt100: 2 type, mV: 2 type, V: 4 type
Resolution (digit) 4 4 4 4
Accuracy (%) ±0.25 ±0.2 to 0.3 ±0.5 ±0.1 to 0.2
Control Evaluation Cycle (second) 0.1 Temperature input 0.25 V, mA 0.1 0.5 0.25
Output Multioutput (1 point)
Relay: 1a 250VAC 3A
SSR: 15VDC 20mA
Current: 4 to 20mADC
Output unit method (sold separately)
Relay: 250VAC 5A
SSR: 75 to 250VAC 1A
Current: 4 to 20mADC
0 to 20mADC
Voltage: 12VAC 40mA
24VAC 20mA
0 to 10VDC
0 to 5VDC
Multioutput (1 point)
Relay: 1c 220VAC 3A
SSR: 24VDC 20mA
Current: 4 to 20mADC
Multioutput (1 point)
Relay: 250VAC 3A or 30VDC 3A
SSR: 12VDC 30mA
Current: 4 to 20mADC
Dual Output Option Available with output device sold separately Option (Unavailable when multi-output is specified) Option (Unavailable when No. 3 alarm, or AO, sensor power supply is specified)
DO Alarm + DO 4 point Alarm 2 point Alarm 2 point (Option) Alarm 3 point
DI 4 point 4 point, but 2 point with communication None 2 point
Multi-setpoint Multi SP: 8
Multi PID: 8
None None Multi SP: 4, Multi PID: 4
Programmed PID (Reference point: 2)
Remote Setpoint 1 to 5V / 0 to 5VDC (Option) 4 to 20mADC 1 to 5VDC (Option) None
AO 4 to 20mA / 0 to 20mADC (Option) 4 to 20mADC 1 to 5VDC (Option) 4 to 20mADC 2 point, 2 outputs, nonselective with sensor power supply
Communication Interface RS-232C / RS-422A
(Required interface module sold separately)
ARCNET (Option)
RS-232C / RS-422 / RS-485
(To be specified in ordering)
None RS-485 (Option)
Servo Drive Option To be advised applicable spec. of PDU or other device by ordering None None
Heater Break Detection Option (Extended I/F+ZE7201 required) Available with ON/OFF output model Option Option (External heater-break sensor required)
Outside Dimensions (mm) 96x96x112.4 (Length of dial excluded) 96x96x113.5 96x96x112 96x96x111
Features Self Tuning (Option),
Antiovershoot Dial Setting
EN Standard (CE Marking) approved,
Water-proof (NEMA4)
Antiovershoot Antiovershoot,
Dust-proof, Drip-proof (IP55),
Sensor power supply (unavailable when dial output or AO is specified)

Integrated Control Solutions
28 Bridge Avenue
Tower Building
Scituate, MA 02066 U.S.A.
Tel (781) 545-5100 / (800) 966-1909
Fax (781) 545-1949
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