15
©
Dinel, s.r.o. CLM–36
10 . Settings
CURRENT OUTPUT 4 ... 20 mA
1. Empty the tank to the minimum level.
2. Set the DIP switches on the CLM to range
*3)
No. 2 (250 pF).
3. By a screwdriver turn the
trimmer 4 mA
and set the quiescent current of the level meter to
4 mA. Turning rightwards (clockwise) increases the current, turning leftwards decreases the
current. When it is impossible to set required current to 4 mA, then switch DIP switches to the
nearest higher range and set up the current 4 mA at that range.
4. Fill the tank to the maximum level. When it is impossible fill the tank to the maximum known
(or checkable) level. For the next settings calculate the output current using the next formula:
I out = 4 + (0,16 x level in %) [mA]
5. If the output current is less than 20 mA (or the calculated value of I out), set the DIP switch to the
lowest range No. 1. and continue to step 7. When the output current exceeds 20 mA, continue
on step 6.
6. Set the DIP switches step by step to higher ranges till the current is greater then 20 mA (or
calculated value of I out), then the current e.g. 21 mA
*4)
flows through the level meter.
Trimmer
20 mA
is still in basic position.
7. Then set the current of CLM by
trimmer 20 mA
onto 20 mA (or to the calculated value of I out
- see above).
8. To reach a maximum accuracy is useful to check the setting of 4 mA again (compensation of
initial capacity - quiescent current).
VOLTAGE OUTPUT 0 ... 10 V
1. Empty tank to the minimum level.
2. By DIP switches on level meter set range
*3)
No. 2 (250 pF).
3. Use a screwdriver to turn the
trimmer to 0 V
and set the voltage at the output from the level
meter to 0 V. Turning rightwards (clockwise) increases the voltage, turning leftwards decreases
the voltage. When it is impossible to set required voltage to 0 V, then switch DIP switches to the
nearest higher range and set up the voltage 0 V at that range.
4. Fill the tank to the maximum level. When it is impossible fill the tank to the maximum known
(or checkable) level. For the next settings calculate the output voltage using the next formula:
U out = 0,1 x level in % [V]
5. If the output voltage is less than 10 V (or the calculated value of U out), set the DIP switchto the
lowest range No. 1. and continue to step 7. When the output voltage exceeds 10 V, continue
on step 6.
6. Set the DIP switches step by step to higher ranges till the voltage is greater then 10 V (or
calculated value of U out), then the voltage e.g. 10,5 V flows through the level meter.
Trimmer
10 V
is still in basic position.
