APD 1090 DC Input to Dual Setpoint Alarm Trip - Field Configurable


• 24 field configurable input ranges
• DC Voltage Input: 0-50 mV to +/- 10 V
• DC Current Input: 0-1 mA to 0-20 mA
• Output: (2) DPDT Relays - Two independent Alarm Setpoints
• Field-Configurable by User

The APD 1090 accepts a DC voltage or current input and provides visual alarm indication and alarm relay contact outputs. 15 voltage and 9 current input ranges can be field-configured via external rotary and slide switches. Offset ranges such as 1-5 VDC and 4-20 mADC are also included.

Heavy-duty relay contacts allow the module to directly control high capacity loads. Front-accessible potentiometers are used to adjust the alarm setpoint from 0 to 100% and the deadband from 1 to 100%.

The APD 1090 provides two setpoint adjustments of the two DPST relay contacts. The alarm outputs can be configured in the field for HI/HI, LO/LO, HI/LO or LO/HI operation, latching or non-latching, and normal or reverse acting. Deadband and alarm setpoints are independently adjustable for each alarm.

All models are field configurable
Models can be pre-set to your specifications
Order -D version for operation on low voltage power


API Module Power Options
One Week
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DC Input Ranges
24 field selectable ranges via switch settings
See chart on other side, consult factory for special ranges
Voltage: 0-50 mVDC to 0-10 VDC
Bipolar Voltage: ±5 VDC or ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC

Input Impedance and Burden
Voltage: 250 kΩ minimum
Current: 50 Ω typical
Voltage burden: 1 VDC at 20 mA current input

Power to input isolation: 1200 V
Common mode protection: 600 VACp or 600 VDC

Input Loop Power Supply
15 VDC ±10%, regulated, 25 mADC, max. ripple, <10 mVRMS
May be selectively wired for sinking or sourcing mA input

Variable brightness LED indicates input loop level and status

APD 1090 Relay Output
2 independent setpoint DPST contact sets, field configurable
SP 1: Form A (NO) and Form B (NC) contacts (4 terminals)
SP 2: Form A (NO) and Form B (NC) contacts (4 terminals)
May be field wired for Form C operation


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