KeyWord:


    LRS-3301 Series 3-phase watt-hour meter locale Calibrator
 
 
I. Applications
This meter is suitable for field verification of various electronic and inductive type single and 3-phase active mechanical (electronic) watt-hour meters, single and 3-phase multi-function electronic meters, single and 3-phase multi-rate watt-hour meters, and single and 3-phase prepayment watt-hour meters. It supports the active or reactive forward/backward four-quadrant verification, It complies with 3-line and 4-line real reactive power standard to support the verification of various manual reactive watt-hour meters or really reactive watt-hour meters.

II. Functions and characteristics
* It adopts advanced DSP and FPGA chips and advanced sampling technology and algorithm and can realize the high-speed and real time measurement function, which makes this meter have extremely high accuracy and strong function.
* The internal board adopts the SMT and has higher reliability.
* It adopts large LED screen with mimic and clear interface.
* It adopts special sucker type optic collector, which has the function of automatically collecting mechanic meter black spot and electronic meter LED signal, instead of collecting electronic meter pulse through clamping the pulse terminal, safe and convenient; and is also equipped with special pulse sampling line for collecting electronic meter pulse.
* It can adopt special high precision cramp meter to verify the meter without dismantling the line and connect with the verifying meter directly with the current flow line.
* With RS232 interface, it is convenient for connecting with PC and reading the field data.
* With PC-installed special DSBMIS fully automatic meter verification software, it is convenient for downloading user data, reading and processing the user data in the field, and connecting with other networks.
* It can perform the real time measurement of various electricity parameters, such as voltage, current, power (apparent, active and reactive), phase, power factor and frequency etc.
* It has the function of vector diagram display and harmonic analysis etc.
* It can automatically judge the field wrong connecting lines: 3-phase 3-line 48-category common wrong connecting line judgment; and 3-phase 4-line 96-category common wrong connecting line judgment;
* It can perform 0¡ª31 times harmonic analysis and display the harmonic vertical bar chart.
* With built-in large capacity EEPROM£¬it can store 100 users' data and keep it for 10 years without losing.

III. Main technical parameters

1. Device class: Class 0.05,and 0.1;
2. Power source: Single-phase electricity 90V~260V, 50HZ;
3. Power consumption: 40VA;
4. Dimension:350©L¡Á250©L¡Á120©L;
5. Weight: 6©K;
6. Effect of power source changes: ¡Ü0.005% (Power source changes¡À10%);
7. Warm-up time: 15 minutes;
8. Measured frequency range: 45~65HZ;
9. Voltage measuring range (real effective value) : 10V~600V;
Input impedance: ¡Ý600£ë¦¸;
Measuring error: ¡Ü¡À0. 1%;
10. Current measurement
(real effective value) Current range: Two levels:1A, 10A (direct access); Cramp meter: 10A, 100A (optional);
Input impedance: 1A level ¡Ü0. 2¦¸; 10A level ¡Ü 0. 2¦¸; Measuring error: ¡Ü¡À0. 1%; Cramp meter: ¡Ü¡À0. 2%.
11. Power measurements
Active power (P) error: ¡Ü¡À0. 05%; when the cramp meter is adopted: ¡Ü¡À0. 2%;
Reactive power (Q) error: ¡Ü¡À0. 2%; and ¡Ü¡À0. 3% (when the cramp meter is adopted);
12. Power measurement
Active power: ¡Ü¡À0. 05%; and ¡Ü¡À0. 2% (when the cramp meter is adopted);
Reactive power: ¡Ü¡À0. 2%; and ¡Ü ¡À0. 3% (when the cramp meter is adopted);
13. Power factor measurement Error: ¡Ü¡À0. 1%(relative to end-point value of the measuring range); and display range: -1.00000~+1.00000;
14. Frequency measurement
Measurement range: 45~65HZ; and error: ¡Ü¡À0. 02%;
15. Phase measurement
Measurement range: 0¡ã~360¡ã; measurement precision: ¡À0.2¡ã; and measuring items: U¦µ-I¦µ, UL-L;
16. Vector diagram display: 3-phase 4-line or 3-phase 3-line;
17. Harmonic analysis: 0¡«31times harmonic wave.
 
        
 
User ID:
Password:
   
Add: No.5 Fujian Road HongMiao Yixiang Nanjing China
P.C:210003
TEL:(+86)25-8340-6961
                     8342-3700
                     8347-2343
FAX:(+86)25-8347-2509
E-mail:info@lrepc.com
 

  Copyright © 2004 www.lrepc.com. All rights reserved.