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Q498 Field Configurable Isolator
Brand: EurothermThe 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 %
