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V-RTU2000 Series
Veesta - Remote Terminal Unit
Technical Specification Manual
8.2.1
VR-2751 / VR-2752 Specifications
1.
Microprocessor
2.
Memory
3.
Output Channels
4.
Resolution
5.
Accuracy
6.
Settling Time
7.
Output Type
8.
Output Range
9.
Temperature Coefficient
10.
Common Mode Voltage
11.
Isolation
Internal to Analog Output :
12.
Surge Withstand Capability :
(SWC)
13.
Power Requirement
14.
Card Dimension
15.
Environment
Operating Temperature
Storage Temperature
Relative Humidity
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Chapter 8 - Analog Output Unit
:
AT89C2051, 12MHz
:
2K Bytes Flash ROM, 128 Bytes SRAM
:
4 Channels, differential output
:
12 Bits
:
±0.25% at 25°C
:
100ms to 0.1% (Max.)
(Full Range Step)
:
Unipolar and Bipolar Voltage / Current
plus Offset Current
:
VR-2751 Model:
-1 to 1mA, 5000 ohm Max.
VR-2752 Model:
4 to 20mA, 500 ohm Max.
:
100 PPM / °C
:
250V DC (Min.)
1500V DC
ANSI/IEEE C37.90.1-1989
(3KV Oscillatory Test, 5KV Fast Transient Test)
:
+5V DC ±5%, 200mA
:
160mm * 100mm
:
-20°C to 70°C
:
-40°C to 85°C
:
10% to 95% non-condensing
Page 51 of 90
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