Kleinwaechter CPM 374 Manuel utilisateur
MANUAL
Charge Plate Monitor CPM 374
Incl. Electrostatic Field Meter System Prof. Dr.-Ing. Hans Kleinwächter
2 Man al CPM 374
Inhalt
1. Prod ct Description ................................................................................................................................................ 3
1.1. Specifications .................................................................................................................................................... 3
1.2 Legend ........................................................................................................................................................................ 4
2. Initial Operation ........................................................................................................................................................ 5
3. Mode Selection .......................................................................................................................................................... 5
4. Charge Plate Mode ................................................................................................................................................... 5
4.1. Decay Time and Offset Voltage ................................................................................................................. 5
4.2. Saving Data ........................................................................................................................................................ 7
4.2.1. Choose Storage Space .......................................................................................................................... 8
4.3. Settings ................................................................................................................................................................ 8
4.3.1. Set p ........................................................................................................................................................... 8
4.3.2. Calibration ............................................................................................................................................. 10
5. Voltmeter Mode ..................................................................................................................................................... 11
5.1. Voltage Metering .......................................................................................................................................... 11
5.2. Setting p the Meas rement Range ..................................................................................................... 11
5.3. Settings ............................................................................................................................................................. 11
5.3.1. Change distance .................................................................................................................................. 11
5.3.2. Zero Adj st ............................................................................................................................................ 12
6. Electrostatic Field Meter Mode ........................................................................................................................ 13
6.1. Metering an Electrostatic Field .............................................................................................................. 13
6.2. Adj st Range .................................................................................................................................................. 13
6.3. Zero Adj st ..................................................................................................................................................... 13
7. F rther Messages .................................................................................................................................................. 13
8. Warranty ................................................................................................................................................................... 14
9. Gro nding ................................................................................................................................................................. 14
10. Warning Notices ................................................................................................................................................ 14
11. Maintenance and Calibration ....................................................................................................................... 15
12. Important Information ................................................................................................................................... 15
13. Scope of Delivery .............................................................................................................................................. 15
3 Prod ct Description
1. Product Description
The Charge Plate Monitor CPM 374 with its b ilt-in timer f nction consists of a high voltage nit
and an electrostatic field meter. Therefore it has an inp t resistance of 10
16
Ω and is s ited for
meas ring static potentials and discharging times of air ionizers.
The CPM 374 corresponds to DIN EN 61340-5-1 and EOS/ESD S.3.1.
For meas ring vertically the enclosed distance bolts have to be sed.
Important: The high voltage nit is protected by high impedance and therefore to ch-proof.
By the se of battery power and its compact design the CPM 374 is perfectly s ited for mobile
application. Of co rse it can be operated by sing the provided wall power s pply. As the CPM
374 is men -driven and operated by 2 p shb ttons the device is very ser-friendly. For a better
orientation the selected parameters are displayed in the do ble-spaced LCD display.
The device can be operated comp ter-controlled by se of the provided Excel software.
1.1. Specifications
Dimensions (L x W x H): 152mm x 152mm x 152mm
Weight: Approx. 1,5kg
Display: Alpha-n meric display (100mm x 24mm)
2 lines with 16 digits each
Measurement ranges: Charge Plate: Voltage potentials p to ±1000V
Voltmeter (MK11): Voltages p to ±2000V
Static field meter: El. DC fields p to ±200kV/m
PC-Interface: Serial port, 9-pol. S b-D connector
attery: 7,2V / 1300mAh
Time of operation: Approx. 4h on contin o s d ty with f lly charged battery
Charging time: Max. 14h
Wall power supply: Prim. 230V / 50Hz, sec. 12V DC / 750mA
Current consumption: Max. 600mA, battery powered max. 150mA
Temperature range: 0…40°C
Humidity: 10…60% h midity
4 Man al CPM 374
1.2 Legend
CPM374V6
CHARGEPLATEMonitor
AB
set-up
1
3
2
4
6
5
11
13
128
7
10
9
1 Plate electrode 8
Handhold
2 LCD-Display 9
Mains connection 12V DC
3 B tton «A» 10
Serial interface
4 Protective cap 11
±1V analog o tp t with banana jack
5 Mod lator system 12
Gro nd jack
6 B tton «B» 13
Gro nd jack
7 Thread for spacers
5 Initial Operation
2. Initial Operation
With its integrated NiMH storage battery the CPM 374 is pl g-and-play. After switching on the
software version is displayed briefly.
Please se only the provided power s pply. In battery operation mode the backlight is powered
off to save power. F rthermore the device has a tomatic power sh t-off after 10min of inactivi-
ty.
3. Mode Selection
The CPM 374 can be driven as charge plate monitor, voltmeter or electrostatic field meter. By
pressing b tton « » the modes can be switched.
4. Charge Plate Mode
4.1. Decay ime and Offset Voltage
The display shows the selected type of meas rement and prompts to start, e.g.:
The last mode is stored in the EEPROM and displayed after t rning on.
By selecting Decay Time = AUTO the decay time for the positive and the negative voltage is de-
termined a tomatically . AUTO is recommended beca se the Start b tton has to be pressed only
once to perform a meas rement, incl ding the determination of the offset voltage.
The offset voltage is the plate’s potential after a certain time that defines the eq ilibri m of
positive and negative ions. If the offset voltage is positive, the air ionizer has a excess of positive
ions – in case of negative offset voltage the air ionizer excesses negative ions.
Please consider the man fact rer’s instr ctions for a q alitative analysis.
After pressing the b tton «A», the plate electrode is charged by the integrated high voltage nit.
The display shows the timer parameters and the applied voltage, e.g.:
TIMER: 1000-100V
U > 1200V
DECAY TIME: AUTO
PRESS START !
6 Man al CPM 374
The timer starts by passing the pper threshold (1000V in the example)
and determines the decay time by reaching the lower threshold (100V in the example). The pa-
rameters for the timer can be selected in the Setup.
Important: Decay times
≤
≤≤
≤
0,1s are displayed as <0,1s
After the determination of the decay time (s), the offset voltage is meas red after a defined time
period.
The meas rement is finished after determining the offset voltage. All data req ired, e.g. to q ali-
fy an air ionizer, can be read off the display. The offset voltage UOFF and the associated time slice
are displayed in the pper line, the decay time is displayed in the bottom line as POS.DECAY or
NEG.DECAY or ii AUTO - Mode alternating every second:
The display remains ntil b tton «A» Continue is pressed.
OFF = XXXV T = XXXs
POS.DECAY = XX.Xs
OFFSET = XXXs
U = XXXXV
TIMER = XX.Xs
U = XXXXV
7 Charge Plate Mode
4.2. Saving Data
It is possible to save the meas red data in the internal memory. After every meas rement the
device prompts :
By pressing b tton « » the c rrent data are discarded and the next meas rement can be per-
formed.
By pressing b tton «A» the saving is initiated. In event of free space section 4.2.1 is displayed. In
the case of f ll memory (99 entries) the device anno nces for 2s:
To save the data nevertheless the memory has to be erased. Therefore the following prompt is
displayed:
Skip the deleting process by pressing b tton « » and contin e to the next meas rement. The
last res lt disappears from the display and cannot be saved.
Important: It is strongly recommended to copy all data with the provided software to a pc. In
this case the memory can be erased witho t losing precio s data.
After erasing the whole memory by pressing b tton «A», the device proposes the storage space
FILE NO 01 for saving the last meas rement.
DELETE FILES?
A<YES
NO>
MEMORY FULL!
SAVE VALUES?
A<YES
NO>
8 Man al CPM 374
4.2.1. Choose Storage Space
In case of eno gh free space the device prompts:
Confirm the selection by pressing «A». The data is stored:
The selection can be modified by pressing b tton « ». The device displays:
Decrease the tens col mn by pressing «A» and/or decrease the ones col mn by pressing « ».
Important: Only existing file n mbers can be overwritten.
If no b tton is pressed for abo t 3s the display ret rns and yo can select the new val e by
pressing b tton «A».
4.3. Settings
By pressing «A» and « » sim ltaneo sly the device prompts after 1s:
Press «A» to enter SETUP or « » followed by «A» to enter the ZERO ADJUST men .
4.3.1. Setup
In the SETUP the last selected settings for mode are displayed:
By pressing « » the following options can be selected:
In the modes POS or NEG only positive resp. negative decay time is meas red and after the time
period the offset voltage is displayed.
MODE = AUTO
A<OK
CHANGE>
SET-UP ?
A<YES
NO>
FILE NO: XX
A<
-
10
-
1>
PLEASE WAIT !
SAVING !
FILE NO: XX
A<YES
CHANGE>
9 Charge Plate Mode
Afterwards the starting voltage can be set
Confirm the displayed val e by pressing «A» or press « » to select a new one. Val es are
switched in the following order:
Next the stop voltage is set:
Confirm the displayed val e by pressing «A» or press « » to select a new one. Val es are
switched in the following order:
Afterwards the time period for the offset voltage meas rement is inq ired:
Confirm the displayed val e by pressing «A» or press « » to select a new one. Val es are
switched in the following order:
The selected parameters for START, STOP and OFFSET are displayed for 3 seconds:
The device inq ires whether the parameters are right:
Confirm the displayed val e by pressing «A» or press « » to change the val es again.
TIMER + OFFSET OK?
A<YES
NO>
TIMER: 1000-100V
OFFSET: 1 min
OFFSET: 10s
A<OK
CHANGE>
STOP: U = 100V
A<OK
CHANGE>
START: U = 1000V
A<OK
CHANGE>
10 Man al CPM 374
After pressing b tton «A» the device inq ires if the memory sho ld be cleared:
Important: If yo have changed the parameters, the memory must be cleared to apply the
changes, beca se stored data always incl de the stored parameters.
Delete all files and apply the new parameters by pressing b tton «A» Set p will q it afterwards.
Press b tton « » to discard the changes:
The old parameters are set again and the changes that have been made are discarded.
4.3.2. Calibration
By pressing « » followed by «A» after the SETUP q estion, the calibration men appears:
Choose «A» YES to perform an a to offset calibration. The device ret rns:
Pressing « » skips the calibration.
Caution: D ring the calibration external voltage m st not be connected to the plate electrode!
PLEASE WAIT!
CALI RATION!
ZERO ADJUST?
A<YES
NO>
PARAMETER
NOT CHANGED !
PARAMETER
CHANGED
CLEAR MEMORY?
A<YES
NO>
Table des matières
