JEMStar II
High Accuracy Revenue Meter
Product Overview
The AMETEK Power Instruments’ JEMStar II High‑Accuracy Revenue Meter is your cash register. The JEMStar II delivers exceptional precision and long‑term stability making it easy to guarantee 0.05% accuracy for 10 years. Compared with other meters the JEMStar II Revenue Meter can recover more than $13,000 per meter per year in unaccounted revenue.
As a versatile energy Meter, the JEMStar II combines revenue‑grade measurement with advanced power and power quality monitoring supporting everything from simple billing applications to complex system diagnostics at critical points of the electrical network.
As a versatile energy Meter, the JEMStar II combines revenue‑grade measurement with advanced power and power quality monitoring supporting everything from simple billing applications to complex system diagnostics at critical points of the electrical network.
Key Specifications
METER FORMS
• Meter Forms: 5, 6, 8, 9, 45, Universal
INPUTS
VOLTAGE
• 55 to 306 VAC (L-N) 95 to 530 VAC (L-L)
CURRENT
• 1 amp: ANSI class 2
• 5 amps: ANSI class 10
• 10 amps: ANSI class 20
• Burden: 0.5 VA maximum
• Overload: 1.5x rated class current continuous
• Starting current: 0.002 A
• Frequency range: 45 – 55 Hz, 55 – 65 Hz
AUXILIARY POWER
S-base and A-base
• Self powered via all three phases: 55 – 530 VAC
• External Aux power option: 55 – 530 VAC or 90 – 300 VDC; 19 – 58 VDC option
SWITCHBOARD
• Aux Power: 55 – 530 VAC or 90 – 300 VDC; 19 – 58 VDC option
AUXILIARY POWER BURDEN
• 25 VA maximum
ACCURACY
WATT HOUR
• 0.05% reading (0.02% typical)
VOLTS, AMPS
• 0.04% reading
FREQUENCY
• 0.001 Hz
• Meter Forms: 5, 6, 8, 9, 45, Universal
INPUTS
VOLTAGE
• 55 to 306 VAC (L-N) 95 to 530 VAC (L-L)
CURRENT
• 1 amp: ANSI class 2
• 5 amps: ANSI class 10
• 10 amps: ANSI class 20
• Burden: 0.5 VA maximum
• Overload: 1.5x rated class current continuous
• Starting current: 0.002 A
• Frequency range: 45 – 55 Hz, 55 – 65 Hz
AUXILIARY POWER
S-base and A-base
• Self powered via all three phases: 55 – 530 VAC
• External Aux power option: 55 – 530 VAC or 90 – 300 VDC; 19 – 58 VDC option
SWITCHBOARD
• Aux Power: 55 – 530 VAC or 90 – 300 VDC; 19 – 58 VDC option
AUXILIARY POWER BURDEN
• 25 VA maximum
ACCURACY
WATT HOUR
• 0.05% reading (0.02% typical)
VOLTS, AMPS
• 0.04% reading
FREQUENCY
• 0.001 Hz