Intelligent SF6 Density Relay Calibrator

Product Introduction

This SF6 Density Relay Calibrator is an intelligent instrument designed for verifying SF6 density relays. Equipped with an embedded microprocessor, it performs performance calibration on various SF6 density relays and provides standard conversion of SF6 gas pressure at any ambient temperature. Primarily used in the production, maintenance, and monitoring of SF6 density relays, it is particularly suitable for power systems, facilitating the manufacturing, safe operation, pre-testing, and maintenance of SF6 electrical equipment.

Product Parameter (specification)

◆ Operation Method	True-color touch LCD screen, display resolution 1024×600 (pixels)
◆ Measurement Method	Fully automatic measurement
◆ Measurement Quantity	Single test (one set/cycle), dual test (two sets/cycle)
◆ Measurement Speed	Approx. 1.0–2.0 minutes/cycle
◆ Printing Method	Thermal rapid micro-printing
◆ Measurement Pressure Range	0.0–0.9 MPa Resolution;0.001 MPa
◆ Measurement Accuracy	Class 0.25
◆ Measurement Temperature Range	-20°C to +120°C Resolution 0.1°C
◆ Calibration Pressure Range	Standard pressure 0.000 to 0.900 MPa at 20°C
◆ Calibration Targets	Single alarm, single lockout; dual alarm, dual lockout; dual alarm, single lockout; single alarm, dual lockout; overpressure
◆ Measurement Contact Voltage	DC 24V
◆ Temperature Acquisition Method	Manual/Automatic
◆ Inlet Pipe	Standard φ4 PTFE tube (1 set) with quick-connect female connectors at both ends
◆ Measurement Pipes	Standard φ4 PTFE tubes (2 sets) with quick-connect connectors (one male-one female) at both ends
◆ Exhaust Pipe	Standard φ4 PU tube (1 set) (includes 1 quick-connect female connector)
◆ Charging voltage	100–240VAC, 50/60Hz
◆ Operating power	AC/DC dual-use; one charge supports eight hours of continuous operation
◆ Lithium-ion battery pack	16.8V / 6.6AH
◆ Product dimensions	405 × 310 × 200 mm

Product feature and application

◆ Dual-channel detection, capable of testing two sets of SF6 density relays simultaneously

◆ Unique ultra-large true-color touch LCD display (resolution: 1024×600) for intuitive operation

◆ Automatic temperature acquisition or manual temperature setting ensures precise measurements; data is automatically saved with storage capacity exceeding 1000 entries for convenient retrieval

◆ Built-in clock display and battery level indicator

◆ Utilizes high-precision sensors and advanced magnetohydrodynamic technology for automatic measurement, eliminating human-induced errors

◆ Measures alarm, lockout, overpressure, and release pressure values of various SF6 density relays at any ambient temperature, automatically converting them to standard pressure values at 20°C for performance verification.

◆ Capable of verifying the accuracy of various pressure gauges or density gauges at any ambient temperature.

◆ Equipped with multiple switch transition adapters for convenient use; most density relays can be calibrated directly without disassembly.

Prodection details

Our company's SF6 density relay calibrator incorporates advanced features from international products. It can utilize alternative gases such as N2, Air, O2, CO2, etc., to replace SF6 gas for measurements. This eliminates the drawbacks associated with SF6 gas usage, including: highly toxic decomposition products, environmental concerns, and high operational costs.

Company Qualifications

FAQ

What are the preparatory steps before the experiment?

Answer:
(1) Check the instrument battery charge level. If <30%, recharge promptly.
(2) Inspect the filter connectors to ensure completeness.
(3) Check the gas pressure in the storage cylinder. If insufficient, recharge it with SF6 or N2 gas, ensuring the filling pressure ≤1.5MPa.

How should the storage cylinder be filled? What is the appropriate filling level?

Answer: (1) Connect the supplied pressure reducer to the gas cylinder. Use the supplied filling hose to connect directly to the storage cylinder. Slowly open the pressure reducer to begin filling with SF6, N2, air, or other gases.
(2) The storage cylinder (2L) is typically filled to 1–1.5MPa, allowing for dozens of tests per charge.

How do I replace the printer paper?

Answer: Printer paper is a consumable item and should be replaced based on usage. The paper can be replaced directly on the printer's front panel. The paper is thermal paper, model (Thermal Cash Register Paper 57*50). Press the button on the printer to open the top cover. Open the thermal paper package, place the paper with the glossy side down, pull out the paper strip, and close the cover.

Are the instrument readings during testing relative pressure values? How to test absolute pressure values for density relays?

Answer: This calibrator defaults to testing relative pressure values. The pressure type can be selected (refer to Appendix 2 for details). When the alarm value, lockout value, and rated pressure value of the density relay being calibrated are expressed in absolute pressure, select the absolute pressure type in the settings. Enter the values directly as indicated on the density relay without modification; the internal system will automatically convert them.

Hot Tags: intelligent sf6 density relay calibrator, China intelligent sf6 density relay calibrator manufacturers, factory, Fully Automatic SF6 Density Relay Calibrator, SF6 Das Qualitative Leak Detector, sf6 gas analyzer, SF6 Gas Comprehensive Analyzer, SF6 Gas Infrared Imaging Leak Detector, SF6 Gas Quantitative Leak Detector