7
ZDM
FM Rev. 11/10
Table 2: Volume per Pulse for Various ZDM Ranges
4.3
Turning the Unit Off
Remove power.
5.0
Arrival of Damaged Equipment
Your instrument was inspected prior to shipment and found to be defect-free. If damage is
visible on the unit, we advise that you carefully inspect the packing in which it was
delivered. If damage is visible, notify your local carrier at once. The carrier is liable for a
replacement under these circumstances. If your claim is refused, please contact
KOBOLD Instruments.
6.0
Maintenance
The ZDM is continuously lubricated by the medium flowing through its internal
components, so no extra lubrication is required.
Please note the following typical filtration requirements:
ZDM-XX02 to ZDM-XX07:
10 um
ZDM-XX08 to ZDM-XX09:
20 um
ZDM-XX10 to ZDM-XX40:
50 um
Make sure that the filter is kept in proper functioning condition. The frequency of filter
replacement and maintenance will depend on the level on cleanliness of the metered
liquid.
The only wear component in the ZDM are the gear teeth. The gear teeth will wear with
time. The rate of wear depends on the time of operation and the abrasion/lubrication
properties of your measured liquid. We recommend that users perform a periodic (every
six months is suggested) check of the meter calibration. The most effective way to do this
is to use a calibrated container, a timer and accurate weight scale.
7.0
Need Help with your ZDM Sensor?
Call one of our friendly engineers at 412-788-2830.
ZDM Model Number
Range (GPM)
Frequency(Hz)
Pulses per Gallon
ZDM-XX40
0.
2642 - 66.00
4.167-1041.
00
946.3
6
ZDM-XX20
0.0
264 - 31.70
0.833-1
000.00
1,892.7
2
ZDM-XX10
0.0132 - 21.13
0.833-1333.
11
3,785.4
4
ZDM-XX09
0.00
79 - 10.57
1.
246-1667.17
9
,463.6
ZDM-XX08
0.00
53 - 4.76
1.6
72-1501.56
18,927
.2
ZDM-XX07
0.0026- 2.
64
1.6
40-1665.59
37,854
.4
ZDM-XX04
0.001
1 - 1.06
1.
735-1671.90
94,63
6
ZDM-XX02
0.0005 - 0.5
3
1.
577-1671.90
189,27
2
