Burkert Type 8045 - Manual (Page 51)

47
Operatingandfunctions
Calibration of the flow zero point is described in chap. 8.7.2.
iNPUt Di1 CALiB 0
REtURN
iNV YEs
iNV NO
0......9
→
Choose "INV. NO" to trigger the calibration of the
zero flow point on the leading edge.
→
Choose "INV. YES" to trigger the calibration of the
zero flow point on the trailing edge.
→
Confirm
Fig. 44: Configuration of the digital intput to trigger the calibration of the flow zero point
The HOLD mode is ignored if there is a running check for the correct behaviour of the outputs (see
chap. “8.7.3”).
The Hold mode is used to carry out maintenance work without interrupting the process.
In practice, when the device is in Hold mode:
• the device status LED flashes.
• the current transmitted on the 4-20 mA is frozen to the value of the last measured flow rate.
• the displayed flow rate is frozen to the value of the last measured flow rate.
• each relay or transistor output is frozen to the status it had when the Hold mode was activated.
• the totalizers do not increment any more.
• the device is in the Hold mode until the digital input switches again.
iNPUt Di1 hOLD
REtURN
iNV YEs
iNV NO
0......9
→
Choose "INV. NO" to trigger the input on the leading
edge.
→
Choose "INV. NO" to trigger the input on the trailing
edge.
→
Confirm
Fig. 45: Configuration of the digital input to trigger the Hold mode of the device
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Type 8045