Triod Valve Characteristic App

With built - in power supply and two MO65 moving coil meters, workable on 230 volts AC fitted with diode valve on front panel. Consistof Hight voltage : 0-250 volts AC at 25 mA continously variable Low voltage : 6.3 volts AC at 2 amps with built in rheostat for filament current control.

With built in dual stabilized continously variable power supply, workable on 230 Volts AC, fitted with PNP transistor AC 128 on front panel, different terminals of transistor and meter connection are brought out on the panel with separate terminal, fitted with four MO 54 moving coil mters of 3V, 250uA, 50mA, 10V.

Wit built in stabilized power supply, workable on 230 Volts AC, thermister fitted with built in oven and thermometer is mounted on front panel, a heat control switc, on mili ammeter 10mA, on voltmeter 10V and separate terminal for thermister are provided.

PN Junction Diode App.) with built in dual power supply, workable on 230 volts AC, fitted wtih semi conductor diode and meter connection are brought out on panel with separate terminals, Four MO 65 moving coil meters 90 V, 100uA, 3V and 15 mA are provided. Output Bias : 0-1 volts DC continously variable (for forward bios) Input Bias : 0-30 volts DC continously variable (revese bias)

Same as 657 but with 2 dual range MO65 moving coil meters

With built in stabilized power supply, workable on 220 volt AC, fitted with FET FW 10, power supply and three MO 65 moving coil meters, 3V, 15 mA, 15V.

PTFE Corrosion resistance valve PTFE valve, also known as anti-corrosion valve with fluorine plastic lining, is suitable for pipelines with various concentrations of, hydrofluoric acid, aqua regia, various organic acids, strong acids, strong oxidants and other corrosive media. Product characteristics 1. Drawings can be customized; 2. It has extraordinary chemical resistance and can withstand almost all chemical solvents (strong acid, strong alkali, aqua regia and various organic solvents); 3. It can be used as the connection control of various chromatographs, chemical equipment and other pipelines; 4. Pure white appearance, high temperature resistance: use temperature 200 250 , low temperature resistance: - 196

Constant Temperature Humidity Test Chamber 1. Criteria Performance indicators meet the requirements of GB5170, 2, 3, 5, 6-95 Basic parameters verification methods for environmental test equipment for electrical and electronic products low temperature, high temperature, constant humidity and alternating humidity and heat test equipment. Basic environmental test code for electrical and electronic products test A: low temperature test method GB 2423.1-89 (IEC68-2-1) Basic environmental test code for electrical and electronic products test B: high temperature test method GB 2423.2-89 (IEC68-2-2) Basic Environmental Test Rules for Electrical and Electronic Products Test Ca: Constant Humidity and Heat Test Method GB/T 2423.3-93 (IEC 68-2-3) Basic Environmental Test Rules for Electrical and Electronic Products Test Da: Alternating Humidity-Heat Test Method GB/T423.4-93 (IEC68-2-30) Control Methods and Characteristics Balanced temperature control system (BTHC) controls SSR by P.I.D. so that the heating and humidification of the system is equal to the loss of humidity and heat, so it can be used stably for a long time. 2. Refrigeration system 2.1 Compressor: fully packed compressor imported from France 2.2 Refrigerant: environmental friendly refrigerant R404A 2.3 Condenser: fin type heat sink motor 2.4 Evaporator: fin type multi-stage automatic load capacity adjustment 2.5 Other accessories: desiccant, refrigerant flow window, repair valve 2.6 Expansion system: capacity controlled refrigeration system 3. Main technical parameters Temperature range -40150 Temperature fluctuation ±0.5 Temperature deviation ±2 Heating time about 4 degrees /min (no load non-linearity) Cooling time about 1 degrees /min (no load non-linearity) Humidity range 20% ~ 98% R.H Humidity fluctuation 3% R.H Humidity deviation 3% 4. Structure and Material A. Inner box material: stainless steel plate (SUS #304 1.0 mm thick) B. Outer box material: stainless steel plate is atomized or baking varnish (SUS #304 1.0 mm thick). C. Insulation material: hard Polyurethane foam and glass wool. D. Air supply circulation system: (1) 90 W motor (2) stainless steel lengthened axle center (3) Multi leaf fan (SIRCCO FAN) E. Box door: single door, single window, left open, handle on the right hand side. (1) Window 270 x 360 x 40 mm 3-layer vacuum layer. (2) Planar embedded handle (3) Rear button: SUS #304

1. Product introduction: In geological and mineral experiments, PFA sample dissolving tanks are widely used. They are a multifunctional experimental tool, also known as dissolution cups, digestion bottles, vials, beakers, etc. These jars are suitable for low and medium pressure sample dissolution and digestion of experimental samples. When used with ICP-MS/ICP-OES analyzers, these jars improve the accuracy of trace-level analysis. In addition, these jars are designed with different bottom shapes according to experimental needs, such as U bottom, flat bottom and V bottom. If you need to use an electric hot plate or a digestion instrument with holes for experiments, you can get better results by combining it with a PFA sample dissolving tank. 2. Description: Specifications (ml): 3/5/6/7/15/22/30/40/60 Material: PFA Withstand temperature: -200-260â?? Suitable for sample pretreatment experiments for the analysis of dozens of elements in geological and mineral samples, such as: Mo, Ba, V, Si, Se, Li, Ga, Fe, Mg, Zn, Hg, K, etc. 3. Characteristics: 1. Translucent appearance, smooth inner wall, no water hanging on, easy to clean; 2. Temperature resistance: operating temperature -200~+260â?? (do not exceed 150 degrees under closed conditions); 3. Threaded port, excellent sealing, no air leakage; 4. Anti-pollution: low blank value of metal elements; 5. It has low dissolution and precipitation characteristics and is a container for storing standard substances and different reagents; 6. The cover and body can be numbered digitally without confusion; 7. The V-shaped bottom design facilitates the collection of small amounts of samples; the U-shaped bottom design is suitable for the detection of geophysical and geochemical samples. 4. Typical users: Isotope, geology and minerals, metallurgy, nuclear industry and other industries 5. PFA series products: Reagent bottles, washing bottles, volumetric flasks, measuring cups, beakers, digestion tubes, sample dissolving tanks, micro columns, crucibles, valves, joints, delivery pipes, etc.