VAF instruments VISCOSENSE 2 - General Trouble Shooting 常见问题及解决

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15.2 GENERAL TROUBLE SHOOTING 常见问题及解决
Problem 故障 Possible cause 可能的原因 Corrective action 纠正操作
No viscosity signal
无黏度信号
No supply to interface box
界面盒未接通电源
Check supply 检查电源
Check fuses 检查保险丝
Check electrical connections 检
查电气连接
Current loop connection broken
电路中断
Check electrical wiring of 4-20
mA output signal 检查4-20mA信
号输出电缆
Air entrapped in the fuel system
燃油系统中进入空气
Vent the system
对系统进行通风
ViscoSense
®
2 malfunctioning
传感器自身故障
Check diagnostic led
检查诊断用发光二极管
No temperature signal
无温度信号
No supply to interface box
界面盒未接通电源
Check supply 检查电源
Check fuses 检查保险丝
Check electrical connections.
检查电气连接
Current loop connection broken
电路回路中断
Check electrical wiring of 4-20
mA output signal 检查4-20mA信
号输出电缆
ViscoSense
®
2 malfunctioning
传感器自身故障
Check diagnostic led
检查诊断用发光二极管
Viscosity output is lower
than expected
黏度输出较预期低
Actual viscosity is lower than
expected.
E.g. bunker calculator only gives
approx. value. 实际黏度确比预期
低，燃油计算一般为近似值。
Dilution with MDO 柴油稀释所致
Temperature is higher than expected.
温度较预期高
None (For laboratory check of
viscosity take sample according
instructions in chapter 15.4).
无
(按照15.4章节的说明扦取代表性
样品送实验室检查黏度)
Range settings ViscoSense
®
2 and
readout unit do not match
传感器范围设定与控制器输出不匹配
Check mA signal and range
settings
检查电流信号及设定
Air entrapped in the fuel system
系统中滞留空气
Vent the system
对系统排风
Viscosity output is higher
than expected
黏度输出较预期高
Actual viscosity is higher than
expected.
E.g. bunker calculator only gives
approx. value. 实际黏度确比预期
高，燃油计算一般为近似值
Temperature is lower than expected.
温度较预期低
None
(For laboratory check of viscosity
take sample according
instructions in chapter 15.4).
无
(按照15.4章节的说明扦取代表性
样品送实验室检查黏度)
Range settings ViscoSense
®
2 and
readout unit do not match
Check mA signal and range
settings