Absolute Process Instruments API 1420 G _ RTD input dual alarm

Features with all optional accessories:

Automatic Leadwire Compensation
Field Adjustable Setpoints
Plug-In Design for Fast Installation
Input LoopTracker® and Alarm Status LEDs
Alarm Test Button

Applications:

Process Limit Backup Alarm
Temperature Alarm
Over, Under, Out-of-Range Alarm

The API 1420 G are factory configured for an RTD input and provide alarm contact outputs. Heavy duty relay contacts allow the module to directly control high capacity loads.

The API 1420 G contains two independent setpoints with two SPDT relay contact outputs. The normal acting alarm output can be factory configured for HI/HI, HI/LO, LO/HI or LO/LO operation. Top-accessible potentiometers are used to adjust each alarm setpoint. Deadband is fixed at 1% of span. Adjustable deadbands are optional.

LoopTracker and Alarm Status LEDs

API exclusive features include a LoopTracker LED that varies in intensity with changes in the RTD 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

API's exclusive functional test button can be used to verify the alarm and system operation. Press the Test button to toggle the alarm relay(s) to the opposite state. The output test button greatly aids in saving time during initial startup and/or troubleshooting.

Specifications Table:

Input	2 or 3 Wire RTD
Output	One 8 Amp DPDT Relay or Two 8 Amp SPDT Relays
Temperature Input	Factory configured, please specify the following Resistance at 0°C, curve, temperature range RTD types: 10 Î© to 2000 Î© including 100 Î© 0.00385 DIN, 100 Î© 0.003916, 100 Î© 0.00392, 10 Î© Cu, 1000 Î© Ni-Fe, 120 Î© Ni Temp. range: °F or °C 100°F (55°C) min. span or consult factory
Leadwire Compensation	< ±0.05% of span per 1 Î© change in leadwire resistance
Excitation Current	10 Î©: 10 mA 100 Î©: 5 mA 1000 Î©: 0.5 mA 2000 Î©: 0.2 mA
Relay Output	Less than 1.0 µA, including burnout sense
Relay Output	Two independent SPDT form C contact sets Two setpoints, two 12 turn potentiometers, 0-100% of span Normal acting alarms Standard: HI/LO alarm Options: LO/LO, HI/HI, LO/HI alarms Internal jumpers for HI/LO, LO/LO, HI/HI, LO/HI
Relay Contact Rating	8 A at 240 VAC resistive load or 30 VDC resistive load See graph on other side for relay load ratings Caution: Do not exceed socket voltage rating Use an RC snubber for inductive loads
Deadband	Alarm trip/reset window is symmetrical about the setpoint (Fixed at 1% of span, standard)
Output Test/Reset Button	Toggles relay(s) to opposite state when pressed
Response Time	70 milliseconds typical
Ambient Temperature Range and Stability	10°C to +60°C operating ambient Better than ±0.02% of span per °C stability, calculated, not tested
Housing	IP 40, requires installation in panel or enclosure API 011 or API 011 FS socket
Sockets	Socket mounts to 35 mm DIN rail or can be surface mounted
Power	115 VAC ±10%, 50/60 Hz, 2.5 W max

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