YOKOGAWA CA700, Getting Started Manual

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Making Preparations for Measurements
2-13
IM CA700-02EN
1
2
3
4
5
6
App
Index
Hysteresis Warning
If the external pressure sensor receives the pressure exceeding its limit value, this may affect
measurement for a while even when the pressure falls below the limit value.
In the CA700, if the pressure input to the external pressure sensor exceeds the limit value, HYS
appears on the screen.
Even when the pressure falls below the limit value, HYS continues to appear for a period of time. This
period depends on the range and input pressure. Wait for HYS to disappear, and then use the external
pressure sensor.
Period when HYS is displayed
PM100-*-05 (16 MPa model)
Range Limit value
8.4 MPa 12.0 MPa 19.2 MPa
7 MPa approx 110 second approx 340 second approx 450 second
10 MPa - approx 150 second approx 220 second
16 MPa - - approx 50 second
PM100-*-06 (70 MPa model)
Range Limit value
30 MPa 60 MPa 77 MPa
25 MPa approx 150 second approx 380 second approx 510 second
50 MPa - approx 130 second approx 220 second
70 MPa - - approx 60 second
Hysterisis warning
Note
Even when the CA700 is powered on or off within the above period, the hysteresis warning state remains
unchanged within the period(HYS is displayed).
2.4 Connecting Source and Measurement Leads