RX-620SA determines total sulfur in petroleum products, such as gas oil, fuel oil, crude oil and naphtha, using energy dispersive X-ray fluorescence(EDXRF) method, which is an accurate, non-destructive, economical and yet quick method prescribed in ISO 8754 and ASTM D4294-03. Once a sample is set, the total sulfur is determined automatically in 300 seconds(typical). The model RX-620SA is a 12-sample carousel model. After its successful predecessors, this fourth generation has been developed to further improve the accuracy and ease of use.
RX-620SA 是按“能量色散X射线荧光光谱法（EDXRF） ”测定石油产品硫含量的仪器。可通用于车用汽油，柴油，原油，石脑油，渣油，润滑油基础油，液压油，喷气燃料和其他馏分油在内的碳氢化合物中的硫含量测定。适用于ISO 8754 ，ASTM D4294-03.，GB/T 17040的标准。测试过程简单高效，试验结果准确和重复性良好，是一种经济的无损测试方法。通常情况下，测试一组样品最多要300秒，RX-620SA带有一个自动旋转的测试盘，可连续测试12个样品。作为“田中科学”的第四代产品，仪器性能有了进一步的提升，使用更简单灵活。
HIGH PRECISION: Pulse height analysis(PHA) is automatically carried out before each measurement to adjust the system. This innovative system design has further improved the precision.
精度高：高精度脉冲电子计数系统，精确而高效。
测试范围广：独有的技术 “Diamond Parameter Method”,无论是轻油,原油,重油。从低浓度到高浓度,均能在短时间内通过简单的操作,高精度地测出硫分值。对于不同的碳氢化合物（C/H）也能自动补正
AMBIENT TEMPERATURE AND BAROMETRIC PRESSURE COMPENSATION: Compensation for ambient temperature and barometric pressure are made automatically to drastically minimize the drift. 对于环境的影响,可通过气压补正,温度补正进行自动调整。
AUTOMATIC CALIBRATION: Set certified calibration standards and start automatic calibration program to carry out automatic calibration. Either multiple point calibration at up to 12 points or two point calibration starts. 比对标准样品，仪器可进行自动的2点校正和多点校正。
CAROUSEL TYPE SAMPLE CHANGER WITH ACRYLIC COVER: X-ray shielding is by a metallic cover moving downward on the objective sample cell. Since the acrylic dust cover is not intended for shielding X-ray, it may be opened during a test, allowing access to sample cells in the cue.
自动旋转样品台：样品测试区（X射线区）有独立的金属护罩独立分隔，通过旋转平台一一更换，每一个样品都是独立测试的。即使在测试过程中也可以打开仪器外罩，更换或添加样品，不会有X射线泄露的危险，尤其适用于大量集中连续的样品测试。
TANAKAX-Ray Sulfur Meter, model RX-620SA
TYPE:
Total sulfur analyzer for petroleum products by energy-dispersive X-ray fluorescence method (EDXRF)
用非色散X射线荧光光谱分析法测定石油产品中硫含量
CONFORMING STANDARDS: （适用标准）
ISO 8754, ASTM D4294-03, GB/T 17040 etc.
SAMPLE CANGER:
Carousel type 12-position sample changer. Sample cells not being measured are accessible during the measurement.
12孔自动旋转样品台。样品之间独立分隔，不受影响。
SAMPLE VOLUME: （样品需求）
Approx. 5ml （大概5ml）
MEASURING RANGE: （硫含量测试范围）
0-6.00wt%
REPEATABILITY: (Typical) （重复性）
|
Range（范围） |
Std Deviation（标准误差） |
Measuring Time（测试计数） |
|
0.008wt%max |
10ppm* |
300sec x 3times（300秒测试3次） |
|
0.05wt%max |
20ppm |
100sec x 3times |
|
0.05-0.50wt% |
40ppm |
100sec x 3times |
|
0.51-1.50wt% |
60ppm |
100sec x 3times |
|
1.51-2.00wt% |
100ppm |
100sec x 3times |
|
2.01-4.00wt% |
200ppm |
100sec x 3times |
|
4.01-6.00wt% |
400ppm |
100sec x 3times |
*: ASTM D4294 designates the repeatability in the range(r). In terms of standard deviation, 5ppm.
按ASTM D4294标准规定，标准偏差为5ppm
C/H RATIO COMPENSATION: （C/H补正误差）
Automatic with 0.003wt% max of compensation error when a 1wt% sample is tested.
MEASURING TIME: （测试方式）
10-990sec. 1-99 times. （测试时间10-990秒，可设定重复测试 1-99 次）
CALIBRATION: （仪器标定方式）
*Automatic two point calibration automatically followed by a measurement. 自动2点标定
*Manual two point calibration手动2点标定
*Automatic multiple-point calibration(up to 12 points) 自动多点标定（最多12点）
*Manual multiple-point calibration(up to 12 points) 手工多点标定（最多12点）
X-RAY SOURCE: （x射线源功率）
X-ray tube rated 7KV
SAMPLE CELL: 样品杯
2-piece Teflon cup with disposable mylar film （2个聚四氟乙烯样品底座+一次性（Mylar）分子薄膜）
PRINTER: （打印）
Built-in impact dot matrix printer (
DISPLAY: （显示屏）
LCD (20 characters x 4 lines) LCD可显示20字符，4行
DATA OUTPUT:
RS
X-RAY LEAKAGE: （x射线源外散）
0.6µSv/Hr or less on instrument surface （经测试，仪器表面小于0.6 micro Sv/Hr）
OPARATING TEMPERATURE/HUMIDITY: （环境要求）
10
室温10～30℃(一天内的温差变化在
POWER SULLPY: （电源需求）
AC 100-240V+/-10%, 45-66Hz, 200VA
SAFETY: （安全防护）
Interlock mechanism against accidental X-ray leakage （双重保险设计，有效避免 x射线泄露）
DIMENSIONS/WEIGHT: 尺寸/重量
560mmW x515mmD x245mmH/
STANDARD ACCESSORIES:（标准附件）
|
1.Power supply cable电源线 |
1 |
|
2.Sample cell holder样品杯支架 |
12 |
|
3.Sample cell holder spring样品杯簧片 |
12 |
|
4.Teflon sample cells样品杯 |
12 |
|
5.Sample cell assembling jig样品杯组装工具 |
1 |
|
6.Sample cell disassembling jig样品杯分解工具 |
1 |
|
7. Mylar sheet ( |
1卷 |
|
8. Sample cell stand样品杯底座 |
1 |
|
9.Printer roll paper打印纸 |
3 |
|
10.Printer ink ribbon备用打印机色带 |
1 |
|
11.Printing paper holder打印纸支架 |
1 |
|
12.Spare glass tube fuse电源保险丝 |
2 |
OPTIONAL ACCESSORIES:（推荐附件）
1. Certified Reference Material*(标定用样品)
Sulfur in gas oil:（轻油硫含量标定样品）
100, 200, 500 and 800 ppm level （ppm级）
Sulfur in residual fuel oil: （重油硫含量标定样品）
0.0, 0.1, 0.2, 0.5, 1, 2, 3 and 4wt% level （质量百分数级）
*: For a traceable calibration, the CRMs are necessary （标定仪器必须，建议必配）