PDS178 Watchdog Scanner Temperature & Process System
Manufacturer: Precision Digital
PDS178 Watchdog Scanner Temperature & Process System
Manufacturer: Precision DigitalThe PDS178 Watchdog Temperature Scanning & Alarming System brings together a popular combination of Precision Digital products: the Trident meter, the Minimux II scanner, and the PDA2821 NEMA 4X enclosure.
The scanner automatically switches between up to eight (8) input signals (4-20 ma, ±10 V, TC, or RTD) and sends them to the Trident meter for display. Signal switching is done via DPST reed relays.
The Watchdog can be used in a variety of temperature and process monitoring applications.
A very common application for this system is to monitor bearing temperatures.
The Trident meter included with this system is available with standard 0.56" (14.2 mm) high LED digits or large 1.2" (30.5 mm) high LEDs.
FeaturesTrident Temperature & Process Meter
- 4-20 ma, ±10 V, TC & RTD Inputs
- 4-Digit Display
- Two Relays for Alarm Signal to PD138
- NEMA 4X, IP65 Front
- Sunlight Readable Display
Minimux II Temperature/Process Scanner
- 8 Inputs per Unit
- Thermocouples, RTDs, and Process inputs
- Adjustable Dwell Time for Each Channel
- Independent Alarm Input for Each Channel
- First-Out Alarm Indication
- Alarms Indicated by LEDs, Built-in Horn,
and Relay - Built-in 85 dB Horn with Silence Pushbutton
- Stop-on-Alarmed Channel (Field Select)
- Sunlight Readable Indication
- NEMA 4X/IP65 Front
Plastic NEMA 4X Enclosure
- NEMA 1, 4, 4X, 6, 12, and 13, IP66
- Wall Mountable
Specifications
Manufacturer
Product Type
- Temperature Scanning and Alarm System
- Temperature Scanning and Alarm System with Large Display
Display
- Trident: 0.56” (14.2 mm)
- Trident X2: 1.20” (30.5 mm) red LED, 4 digits (-1999 to 9999)
Display Intensity
- Eight user selectable intensity levels
Display Update Rate
- Process/RTD: 3.7-5/sec; TC: 1.8-2.5/sec
Front Panel
- NEMA 4X, IP65; panel gasket provided
Programming Methods
- Four front panel buttons, cloning with Copy feature, PC with MeterView or LabVIEW software, and Modbus registers
- Certified LabVIEW driver available
Noise Filter
- Programmable 2 to 199 (0 will disable filter)
Power
- 85-265 VAC, 50/60 Hz; 90-265 VDC, 20 W max
Operating Temperature
- -40 to 65° C
Storage Temperature
- -40 to 85° C
Humidity
- 0 to 90% non-condensing
Connection
- Power & Signal: removable screw terminal blocks accept 12 to 22 AWG
- Serial: RJ11 header, standard on all meters
Enclosure
- 1/8 DIN, high impact plastic, 94V-0, color; gray
Weight
- 9.5 oz (269 g) (including options)
Approvals
- UL
- Scan Thermocouples
