Q498 Field Configurable Isolator

Brand: Eurotherm
Does not ship to United States

The Q498 is a DC powered, DIN rail mount, DC input signal conditioner.

The unit is fully isolated to 1,800 V between input, output and power.

It has two isolated Analog inputs that each accept either a DC voltage or current input signal.

The one Analog output delivers either DC bi-polar voltage or uni-polar current.

The Q498 also has a separate frequency input channel and a frequency output, as well as a discrete input and output channel.
Features
  • Multi-function, multi-channel input
  • TouchCAL technology
  • DC-frequency or frequency-DC converter
  • Optional PC based programming software
  • High density DIN rail mounting
  • Math function capability
  • SnapLoc plug-in terminals

Specifications

Brand

Accuracy

  • Analog Output Accuracy: ± 0.005 % of Full Scale Input Range (± 0.05 % on 150 V Range)
  • Analog Output Accuracy: Puls ± 0.05 % of Full Scale Output Range (± 0.1 % for Output Loads < 200 ohms)
  • Frequency Output Accuracy: ± 0.1 %

Approvals & Certifications

  • CSA C22.2, No. 0-M91 & 142-M1987
  • UL (C,US)
  • UL 508 (File No. E99775)

Current

  • Power Supply Current: 280 mA - Max.

Display

  • LEDs

Electrical Connectors

  • Plug-In Terminal
  • Wire Terminals: Socketed Screw Terminals for 12-22 AWG

Electrical Contacts

  • Normally Closed

Frequency

  • Manual Calibration Frequency Output: 0 to 10,000 Hz

Humidity

  • Non-Operating Humidity: 90 % Relative Humidity at 65° C (149° F) for 24 Hours
  • Operating Humidity: 15 to 95 % Relative Humidity, Non-Condensing at 45° C (113° F)

Input

  • Analog Input (2 Isolated Channels): ± 1.5 V
  • Analog Input (2 Isolated Channels): ± 15 V
  • Analog Input (2 Isolated Channels): ± 150 mV
  • Analog Input (2 Isolated Channels): ± 150 V
  • Analog Input (2 Isolated Channels): ± 2.5 mA
  • Analog Input (Channel 1): ± 25 mA, Calibrated for 4-20 mA
  • Analog, Max.
  • Frequency Input: HIV for 0.5 V-150 Vrms with 20 Vp Noise Suppression
  • Frequency Input: LOV for 150 mV-50 Vrms with 5 Vp Noise Suppression

Input Impedance

  • Analog Input Impedance: > 10 megaohms on Voltage Ranges ≤ 1.5 V
  • Analog Input Impedance: ≥ 100 kiloohms on Voltage Ranges > 1.5 V
  • Analog Input Impedance: 70 ohms Typical

Isolation

  • 1,800 Vdc between Input, Output & Power

Mounting

  • DIN Rail Case (0.88” x 4.0” x 4.59”)

Operating Temperature

  • 0° to 55° C (32° to 131° F)

Output

  • Analog Output Drive (Voltage Range): 10 mA (1,000 ohms Load Min.)
  • Analog Output Drive: 0-20 mA, Calibrated for 4-20 mA
  • Analog Output Drive: 12 Vdc Compliance (600 ohms, Max.
  • Analog Output: -10-10 Vdc
  • Frequency Output: Open Collector Pulled Up through 20 K to 18 V, with 1 mA Drive

Output Impedence

  • Analog Output Impedance: < 3 ohms on Voltage Output Ranges
  • Analog Output Impedance: ≥ 500 kiloohms on Current Output Range

Power Requirement

  • 2.5 W, Max.
  • 9-30 Vdc

Response Time

  • Analog Response Time: 750 milliseconds, Max.

Span & Zero Adjustments

  • Pushbutton Adjustment (Effective Span Turn-Down): ≥ 90 %

Stability

  • Analog Stability: ± 0.005 % of Full Scale Range/°C Typical (± 0.01 %, Max.

Storage Temperature

  • -25° to 70° C (-13° to 158° F)

Supply Voltage

  • External Supply: 24 V

Switch Type

  • DIP Switches

Zero Offset

  • Pushbutton Adjustment (Effective Zero Offset): ≥ 90 %
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