13 Specifications
Varec, Inc. 143
Digital Output Relay Ratings
Analog 4-20 mA Input
Analog 4-20 mA Outputs (2)
I.S. HART Interface
Digital Outputs
Load Resistive load
(power factor = 1)
Inductive load
(power factor = 0.4)
(L/R = 7 mS)
Rated Load 0.30 A at 125 VAC,
1 A at 30 VDC
0.20 A at 125 VAC,
0.50 A at 30 VDC
Contact material AgPd (Au clad) AgPd (Au clad)
Carry current 3 A 3 A
Maximum operating voltage 250 VAC, 220 VDC 250 VAC, 220 VDC
Maximum operating current 2 A 1 A
Maximum switching capacity 125 VA, 60 W 62.50 VA, 30 W
Minimum permissible load 10 uA, 10 mVDC 10 uA, 10 mVDC
Internal Load to ground 100 Ω
Measuring Range 0 to 20 mA
Accuracy ±15 μA (after linearisation and calibration)
Output Current 3.5 to 22 mA
Output Voltage U = 24 V - ILOAD 400 Ω
Output Load Max 500 Ω
Accuracy ±15 μA (after linearisation and calibration)
IS (Intrinsically Safe) HART Master for measuring device
Source Voltage U = 24 V (Typical)
Total Imax Startup currents not to exceed 27 mA max
Connectable Sensors Typically 4 max, depending on current
consumption (including startup current)
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