Brief Introduction
SB2300A adopts the advanced Embedded Computer Technology and Digital Signal Processing Technology. SB2300A is not only own the traditional functions of Energy Meter On-site Testing Equipment, but also has the secondary load measurement of CT and PT, PT secondary decompressing. It is widely used in the power metrology institutes and relative departments.

Specifications
• Accuracy class :0.05/0.1
• Voltage range：30V～480V
• Current range: Direct input: 1A, 5A
• Current clamp input: 5A(class 0.2), optional 500A or 1000A clamp (class 0.5)
• Frequency:45Hz～65Hz
• Harmonic: 2～50th
• Frequency measurement: Resolution 0.001Hz, error ±0.02 Hz
• Phase measurement：0°～360°，resolution 0.001°，error±0.5°
• Pulse input: Max 1KHz (TTL)
• Pulse output: High Frequency 100 KHz, Low Frequency 1 KHz (TTL)
• Auxiliary power source：90V～400V
• Power consumption:25W
• Working environment：Temperature-10℃～30℃
• Humidity＜80% R.H.
• Temperature coefficient：0.002%/℃
• Preheating time:20min
• Dimension：370mm（L）×270mm（W）×170mm（H）
• Weight: 6kg
• PT secondary decompressing measurement
1. Signal range: 40v~120v
2.Ratio Error measurement range: ±0.01%～±20%
3.Phase displacement measurement range: ±0.1′～±600′
4. Accuracy
Ratio Error: Ratio Error×2%＋Phase displacement×2%±0.02%
Phase displacement: Ratio Error×2%＋Phase displacement×2%±0.5′
 PT Secondary Load Measurement
1. Voltage signal range: 40v~120v
2. Current signal range: 0.1A~ 6A
3. Admittance measurement range: 0.1MS~ 100MS
4. Accuracy
Conductance: Conductance×2%+susceptance×2%±0.02MS
Susceptance: Conductance×2%+susceptance×2%±0.02MS
 CT Secondary Load Measurement
1. Voltage signal range: 40v~120v
2. Current signal range: 0.1A~ 6A
3. Impedance measurement range: 0.1Ω~10Ω
4. Accuracy
Resistance: resistance×2%+reactance×2%±0.01Ω
Reactance: resistance×2%+reactance×2%±0.01Ω