Absolute Process Instruments APD 1420 D _ RTD input dual alarm
Cecomp Electronics, APD 1420 D, Dual Alarm Trip for RTD Input, 9-30 VDC, 10-32 VAC Power
Features with all optional accessories:
- 2-wire or 3-wire RTD
- Lead wire compensation for 3-wire
- User adjustable setpoint(s)
- User adjustable deadband(s)
- 8 Amp SPDT contacts
- Input LoopTracker LED
- Alarm status LEDs
- Alarm options: LO, HI/HI, LO/LO
- Optional reverse acting
- Optional latching alarms
- Push to test/reset
- Remote push to test/reset
- Full I/O/power isolation
- Removable plugs
- DIN rail mount without tools
Applications:
- Process Limit Alarm
- Monitor, Heaters, Refrigerators, Ovens
- Process Signal Over or Under Alarms
The APD 1420 D accept an RTD temperature input and provide a visual alarm indication and alarm relay contact outputs. The input type, range, and alarm types are factory configured. The input can be configured for most 10 Ω to 2000 Ω RTDs. Front-accessible potentiometers are used to adjust alarm setpoint and deadband.
LoopTracker and Alarm Status LEDs
API exclusive features include a LoopTracker LED that varies in intensity with changes in the process input signal. A two red/green bi-color alarm status LED visually indicate alarm status. These LEDs provide a quick visual picture of your process at all times.
Output Test / Unlatch
API’s exclusive Output Test button can be used to verify the alarm and system operation and also provides the additional function of unlatching the alarm when the latching option has been ordered. This feature can be remotely operated. The output test button greatly aids in saving time during initial startup and/or troubleshooting.
Specifications Table:
| Input | 10, 100 or 1000 Ohm RTD |
| Output | Two 8 Amp DPST Relays |
| Power to input isolation | 1200 V |
| Common mode protection | 600 VACp or 600 VDC |
| Temperature Input Range | Factory configured, please specify the following resistance at 0°C, curve, temperature range.
|
| Leadwire Compensation | <±0.05% of span per 1 Ω change in leadwire resistance |
| Standard Alarm Configuration | 2 setpoints, 2 SPDT relays. HI/LO alarms, non-latching, normal acting |
| Setpoint | 12 turn potentiometer adjustable from 0 to 100% of span |
| Deadband | 12 turn potentiometer adjustable from 1 to 100% of span |
| Response Time | 70 milliseconds typical |
| Ambient Temperature Range and Stability | 10°C to +60°C operating ambient |
| Connectors | Four 4-terminal removable connectors, 14 AWG max wire size |
| Power | 9-30 VDC or 10-32 VAC |
