Precision Digital PD150 Vigilante II Series Alarm Annunciator

Precision Digital PD154-7R2-0


Available on backorder

Part Number:  PD154-7R2-0  Category:

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Model: PD154-7R2-0 
Product Type: 1/8 DIN 4-Input Alarm Annunciator 
Input: Switch, Multiple Inputs 
Output Options: 2 Relays 
Power: 12-36 VDC, 12-24 VAC 
Approvals: CE, UL/C-UL 
Transmitter Power: None 
Display Category: LED, Sunlight Readable 
Display: 4 red LED indicators 
Warranty: 3 years 
Product Series: Vigilante II 
Product Family: PD150 
Product Category: Annunciators & Scanners 
Product Application: Annunciator

Wiring Diagram:


Display: PD154; Four red LED channel indicators. PD158; Eight red LED channel indicators. One green LED power indicator.
Alarm Messages: Custom printed clear adhesive labels.
Area: PD154, 1.25″ x .60″ (32 mm x 15 mm), 4 messages PD158, 1.25″ x .25″ (32 mm x 6 mm), 8 messages
User specified size and length, up to 4 lines (PD154) or 2 lines (PD158) of 14 characters of size 9 pt fonts.
Programming Methods: Rear 4-position switch for sequence selection and horn operation. Three front panel pushbuttons for NO/NC input selection, sequence option, and action.
Audible Alarm: 85 dB internal horn.
Noise Filter: 40 ms debounce on inputs and external pushbuttons.
Shared First-Out Systems: 1 ms unit-to-unit delay. Maximum of 200 units in the shared first-out system.
Non-Volatile Memory: All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Power Options: 85-265 VAC, 50/60 Hz; 90-265 VDC, 20 W max; or 12-36 VDC, 12-24 VAC, 6 W max.
Fuse: Required external fuse: UL Recognized, 5 A max, slow blow. Up to 6 annunciators may share one 5 A fuse
Isolated Power Supply: 24 VDC ± 10% @ 200 mA max Standard on 85-265 VAC powered units only.
Isolation: 4 kV input/output-to-power line.
Overvoltage Category: Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.
Environmental: Operating temperature range: -40 to 65°C.
Storage temperature range: -40 to 85°C. Relative humidity: 0 to 90% non-condensing.
Connections: Removable screw terminal blocks accept 12 to 22 AWG wire.
Enclosure: 1/8 DIN, high impact plastic, UL 94V-0, front color: black
Mounting: 1/8 DIN panel cutout required. Two-panel mounting brackets included.
Tightening Torque: Screw terminal connectors: Gray: 4.5 lb-in (0.5 Nm). Green: 5 lb-in (0.5 Nm)
Overall Dimensions: 4.68″ x 2.45″ x 4.19″ (62 mm x 119 mm x 106 mm) (H x W x D)
Weight: 9.6 oz (272 g)
UL File Number: E160849; 508 Industrial Control Equipment
Warranty: 3 years parts & labor


Input Types: NO or NC switches: No external excitation required.
Open collector transistor: Open circuit voltage approx. 3.3 VDC.
Logic Levels: LOW = 0 to 0.9 VDC, HIGH = 2.4 to 28 VDC
Update Rate: 41 ms following alarm state; 1 ms for alarm state clear.
Sequences: Input follower, ISA Sequences A, F1A, F2A, F3A, M, F1M, and F3M per ISA Standard ISA-18.1-1979 R2004.
Sequence Options: A, F1A, F2A, F3A, M, F1M, F2M, and input follower with selectable options -1 (silence pushbutton), -4 (no lock-in), and -6 (no horn) per ISA Standard ISA-18.1-1979 R2004


Rating: 2 SPDT (Form C); rated 3 A @ 30 VDC or 3A @ 250 VAC resistive load; 1/14 HP @ 125/250 VAC for inductive loads.
Electrical Noise Suppression: A suppressor (snubber) should be connected to each relay contact switching inductive loads to prevent disruption to the microprocessor’s operation. Recommended suppressor value: 0.01 µF/470 Ω, 250 VAC (PDX6901).
Relay Operation: Relay 1: Alarm state until the alarm is acknowledged. Relay 2: Alarm state if any channel indicating an alarm condition.
Fail-Safe Operation: Programmable independent for each relay.
Note: In fail-safe mode, the relay coil is energized in non-alarm condition. In case of power failure, the relay will go to the alarm state.


Level Monitoring with Level Switches

The Vigilante II is ideal for tank level switch monitoring.
  • Up to 8 Individually Labeled Level Switch Inputs
  • 24 VDC Level Switch Power Supply
  • Relays for External Horns and Light Alarms
  • NEMA 4X Mounting Enclosures
  • Sunlight Readable Indication

Level Monitoring with Level Switches

  • First-Out Indication for Heating/Cooling Systems
  • Multiple Unit First-Out Indication
  • Remote Silence, Acknowledge and Reset
  • Internal 85 dB Horn,/li>
  • Fail-Safe Relays for Critical Applications

Connect PD765 Trident alarm relays to the Vigilante II
for temperature alarm monitoring.

First-Out Alarm Indication

The Vigilante II can be programmed for multiple sequences with first-out alarm indication. This feature indicates the first point of failure of a system when multiple alarms occur.

Multiple Unit First-Out Alarm Indication

If multiple Vigilante II annunciators are connected for multiple unit first-out indications, only one input from all connected devices will display as a first-out alarm.

Multiple Unit First-Out Indication



PD158 connections for 85-265 VAC powered sku.

Mounting Dimensions


Data Sheet: LDS158_3 Datasheets

Instruction Manual: LIM150 Instruction Manuals


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