Description
Description
D91-W Power measurement
General
The D91-W is a compact digital AC active power meter with a 5‑digit red LED display. It measures active power from 0 to 30000W with 1% ±2 digits accuracy. The display automatically switches format: below 10000W it shows 0.0‑9999.9W, and above 10000W it shows 10000‑30000W. The meter features a built‑in current transformer (CT) for non‑invasive measurement — simply pass the conductor through the CT hole. Voltage measurement inputs are connected via rear terminals. It is ideal for power monitoring in industrial, commercial, and residential applications.
Product parameters
Product Model: D91‑W
Product Type: Digital AC active power meter
Accuracy: 1% ±2 digits
Display Type: 5‑digit red LED (0.32″)
Measurement Range: 0‑30000W
Display Format (<10000W): 0.0‑9999.9W
Display Format (≥10000W): 10000‑30000W
Measurement Speed: Approx. 2 times/second
Voltage Input: AC40‑300V
Current Input: Via included 100A current transformer (CT)
CT Installation: Pass conductor through CT hole
CT Connection: Insert secondary terminals (white) into white socket on meter rear
Voltage Connection: Connect to black terminals on meter rear
Dimensions: 45 × 45 × 38 mm
Accessories Included: 100A current transformer ×1
Application: Power monitoring for industrial, commercial, and residential systems
D91‑2080 Voltage and frequency measurement
General
The D91‑2080 is a compact digital meter that simultaneously displays AC voltage and power frequency on a single unit. It features a self‑powered design — no external power supply is needed, as it operates directly from the measurement input. Voltage is shown on a 3‑digit red LED display, while frequency is shown on a 3‑digit green LED display. With 1% ±2 digits accuracy, it measures AC voltage from 40.0‑300V and frequency from 45.0‑65.0Hz. Ideal for panel mounting in industrial, commercial, and residential power monitoring applications.
Product parameters
Product Model: D91‑2080
Product Type: Digital AC voltage and frequency dual display meter
Display Type (Voltage): 3‑digit red LED (0.32″)
Display Type (Frequency): 3‑digit green LED (0.32″)
Accuracy: 1% ±2 digits
Voltage Measurement Range: AC 40.0‑300V
Frequency Measurement Range: 45.0‑65.0Hz
Measurement Speed: Approx. 2 times/second
Power Supply: Self‑powered (no external supply required)
Input Connection: Voltage measurement leads to rear black terminals
Dimensions: 45 × 45 × 38 mm
Application: Panel‑mount voltage and frequency monitoring for industrial, commercial, and residential systems
D91-2042 Voltage and current measurement
General
The D91-2042 is a compact digital meter that simultaneously displays AC voltage and current on a single unit. It features a built‑in 100A precision current transformer, requiring no external power supply or additional CT. Voltage is shown on a 3‑digit red LED display, while current is shown on a 3‑digit green LED display with auto‑ranging (0.01A resolution below 10.0A, 0.1A resolution above 10.0A). With 1% ±2 digits accuracy, it measures AC voltage from 40‑300V and current from 0.00‑99.9A. Ideal for panel‑mount power monitoring in industrial, commercial, and residential applications.
Product parameters
Product Model: D91-2042
Product Type: Digital AC voltage and current dual display meter
Display Type (Voltage): 3‑digit red LED (0.32″)
Display Type (Current): 3‑digit green LED (0.32″)
Accuracy: 1% ±2 digits
Voltage Measurement Range: AC 40‑300V
Current Measurement Range: AC 0.00‑99.9A
Current Resolution (＜10.0A): 0.01A
Current Resolution (≥10.0A): 0.1A
Measurement Speed: Approx. 2 times/second
Power Supply: Self‑powered (no external supply required)
Current Transformer: Built‑in 100A precision CT (included)
CT Connection: Secondary terminals (white) into white socket on meter rear
Voltage Connection: Rear black terminals
Dimensions: 45 × 45 × 38 mm
Application: Panel‑mount voltage and current monitoring for industrial, commercial, and residential systems
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