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Set-up for dry-run (underfill) protection
First install the unit with the probe covered, and power it up.
•
Check that keylock level is set to 'no restrictions': PL = 0 at menu 1F
(no change is necessary if the factory setting has not been changed)
1. Select menu 10, then set the rotary switch to F.
2. Use the BLUE (–) push-button to decrease the value to 0: display reads PL 0.
•
Check that the transmitter variable selected is TV0 (units are pF): Pv = 0 at menu 01
(no change is necessary if the factory setting has not been changed)
1. Select menu 00, then turn the rotary switch to 1.
2. Use the BLUE (–) button to adjust the value to 0: the display reads Pv = 0.
Set the first operating point for the switch: menu 0F
Set value for 100% (URV): units must be pF (Menu 01 must read Pv = 0) and the probe
must be covered.
a. Set the rotary switch to F (Full).
b. Press both buttons and hold for about 1 second: the 100% point is now set.
(The LCD does not blink when the probe is covered).
Set the dry-run (or underfill) protection: menu 0D
Set the value for 0% (LRV): the probe must be covered.
a. Set the rotary switch to E (Empty).
b. Press both buttons and hold for about 1 second: this sets the value for 100%.
c. Set the rotary switch to D (Delta Range).
d. Press both buttons and hold for about 1 second: this takes the minimum span
and subtracts it from the value for URV to generate the value for LRV.
e. For products that are conductive and viscous, use the RED (+) button to
increase
increase span between URV and LRV.)
(The LCD will start blinking if the probe is considered uncovered.)
View primary variable: menu 00
Turn the rotary switch to 0: the LCD displays the actual pF reading.
Pointek CLS500 is now ready to operate.
Notes:
•
During normal operation, the 4 and/or 20 mA point can be calibrated at any time.
•
If the difference in the capacitance value between the 4 mA point and the 20 mA
point is smaller than the minimum span value (1 pF), the new value will not be
accepted.
1.
If the stepsize is too large, see page 53 for details on adjusting the stepsize.
Page 52
1
the Delta Range setting. (This will decrease the value for LRV, and
Pointek CLS500 – INSTRUCTION MANUAL
7ML19985GG03
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