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VJA1/H HART Distributor
Brand: Yokogawa Electric CorporationThe VJA1/H is a compact, plug-in type distributor that is used in combination with a two-wire type transmitter to convert the transmitter’s 4-20 mA DC signals into isolated DC current or DC voltage signals.
Features- HART communication: VJA1/H (option code /H) Bi-directional relay of HART communication signals is possible while the field devices and the higher-level device are isolated from each other.
- Supports BARD-800.
Specifications
Accuracy
- ± 0.1 % of Span
Communication
- Bi-Directional HART
Consumption
- 3.1 W at 110 Vdc - Power Consumption
- 3.2 W at 24 Vdc - Power Consumption
- 6.1 VA at 100 Vac - Power Consumption
- 8.3 VA at 200 Vac - Power Consumption
Current
- 25-35 mA - Current Limiter
Electrical Connectors
- M3 Screw Terminal
Enclosure, Body Material
- Modified Polyphenylene Oxide
Frequency
- 500 to 10,000 Hz - Frequency Band
Humidity
- 5 to 90 % RH, Non-Condensing - Operating Humidity
Input
- 40 mA DC or Less - Max.
Input Signal
- 4-20 mA DC Signal from 2-Wire Typical Transmitter
Insulation Resistance
- 100 MΩ min. at 500 Vdc between Input, Output-1, Output-2, Power Supply & Grounding Terminals Mutually
Mounting
- Base Mounting - VJ
- DIN Rail Mounting
- Wall Mounted
Operating Temperature
- 0° to 50° C (32° to 122° F)
Operating Voltages
- 12-36 V
- 85-264 V
Output
- 1-5 Vdc
- 4-20 mA DC
Power Supply
- 100-240 Vac/dc (-15 %, 10 %), 50/60 Hz - Supply Rated & Input Voltage Range
- 15-30 Vdc (± 20 %) - Supply Rated & Input Voltage
- 25.25 ± 0.25 Vdc - Transmitter Power Supply
Power Supply Effect
- Up to ± 0.1 % of Span - Power Line Regulation
Resistance
- 2 kΩ or more (1-5 Vdc) - Allowable Load Resistance
- 230 to 600 ohms - Allowable Load Resistance
- 250 ohms Equivalent
- 350 ohms or Less (4-20 mA DC) - Allowable Load Resistance
- 750 ohms or Less (4-20 mA DC) - Allowable Load Resistance
Response Time
- 150 ms, 63 % Response (10 to 90 %)
Span & Zero Adjustments
- Span Adjustment: 95 to 105 %
- Zero Adjustment: -5 to 15 %
Supply Voltage
- 1,000 Vac for One Minute between Output-1 & Output-2 Terminals - Withstanding Voltage
- 2,000 Vac for One between Input, (Output-1 & Output-2) - Withstanding Voltage
Temperature Effect
- Up to ± 0.15 % of Span Per 10° C (18° F) - Effects of Ambient Temperature
Voltage Drop
- 5 V or Less at 20 mA Input
