Features
- Universal Sensor Input
- Programmable control action PID control/ ON-OFF
- Programmable Input Signal Conditioning (Digital Filter & Zero Offset)
- Optional Current Output Available
- Optional Serial Communication Port
- Soft Start Time for 4-20 mA
- Overshoot Control Protection
- Single Step Ramp Soak
- Alarm Acknowledge & Inhibit function
- Programmable soak timer
- Four different start modes for soak timer
- Battery Backup for Soak Timer
- Timer Hold Strategy
- Settable soak time delay
- Time Delay for Compressor
- Universal supply voltage ranges from 90 to 270 VAC
- Supply 24VDC Available on Request
| Description | Fx-438 | |
| Display | Height & Colour | 0.38'' White & 0.24'' Pure Green |
| No. of Digits | 4 Digits Dual Row | |
| LED Indication | OP1, OP2, OP3, AT, SOAK & RTX | |
| Input Specification | ||
| Measurement |
Sensor Input |
T/C: J, K, R, S, N, T, B RTD: Pt-100 Analog : 0-1 VDC, 0-3.3 VDC, 0-5 VDC, 0-10 VDC, 0-20 mA, 4-20 mA |
| Resolution | T/C: 1°C Pt-100: 1°C/ 0.1°C Analog : 1°C/ 0.1/ 0.01/ 0.001°C |
|
| Sampling Rate | 250msec | |
| Accuracy | 0.3% FS | |
| Serial Communication | ||
| Port | RS-485, Half Duplex | |
| Protocol | Modbus RTU | |
| Baud Rate | 9600, 19200, 31250, 38400, 76800 | |
| Parity | None, Odd, Even | |
| Data Bits | 8 | |
| Stop Bits | One(1), Two(2) | |
| Output Specification | ||
| Output | Relay | 5A @ 250 VAC/ 30VDC |
| SSR Drive | 12 VDC @ 30mA | |
| Current | 0-20mA DC, 4-20mA DC (loop impedance : 500Ω max.) | |
| Functional Specification | ||
| Output 2 Function | Auxiliary | Absolute / Deviation |
| Alarm | Low/ High/ Band / Low Deviation/ High Deviation | |
| Output 3 Function | Auxiliary | Absolute / Deviation |
| Alarm | Low/ High/ Band / Low Deviation/ High Deviation | |
| Soak Timer | Heater off/ Alarm/ Both | |
| General Specification | ||
| Supply Voltage |
90 - 270 VAC/ DC (24 VDC Available on Request) |
|
| Temperature And Humidity | Operating: 0-50°C Storage: -20° to 75°C 95% RH (Non-condensing) |
|
| Dimensions in mm (H x W x D) | 48 x 48 x 70 | |