10
US
Operating instructions - digital oval gear meter and pulse meter
Designation
NUMERIxx³
DEF
23 190 870
Pulse meter
Oval gear meter
with display
DEF
23 829 870
Pulse meter
Oval gear meter
without display
DEF
23 823 006
23 823 066
Measuring system
oval gear
oval gear
oval gear
Distance in-/out flange (inch)
3.74
3.74
3.74
Connection on both ends
G 1‘‘ f
G 1‘‘ f
G 1‘‘ f
Media
DEF
DEF
DEF
Flow capacity (gpm)
0.53-26.42
0.53-26.42
0.53-26.42
Pre-set flow direction
horizontal
horizontal
horizontal
Permitted liquid temperature max. (°F)
95
95
95
Permitted ambient temperature (°F)
23 / 95
23 / 95
23 / 95
Measuring tolerance (%)
0,5
0,5
0,5
Nominal pressure (psi)
50
50
50
Burst pressure (psi)
400
400
400
Impulses (pulses/gal)
12.15
12.15
Contact form
A-closer
A-closer
Switching capacity (W)
10
10
Operating voltage (V)
3-30 V DC
3-30 V DC
Operating current (A)
0,5
0,5
Switch current (A)
0,5
0,5
Sensor resistor (mOhm)
300
300
Material housing
stainless steel
stainless steel
stainless steel
External dimensions LxWxH (inch)
3.94 x 3.94 x 2.56 3.94 x 3.94 x 2.56
3.94 x 3.94 x 2.56
Weight (lb)
2.31
2.31
2.31
Tab. 4-2: Technical data oval gear meter DEF
5. Assembly
The oval gear meter comes pre-assembled and ready to go.
According to the version, accessories may be or must be mounted.
NOTE
Ensure cleanliness during installation and an exact connection and
accurate sealing.
6. Installation
The inlet and outlet of the oval gear meter are aligned in a straight axis and equipped with 1“ threads.
The meter may be installed in any given position, as a fixed unit in a pipeline and/or as a mobile unit on a
spigot.
The oval gear meter does not have a pre-defined flow direction. Both ends may alternatively serve as
inlet or outlet, as needed. However, it is absolutely important that the side that is used as inlet (where the
pipeline arrives) is equipped with a filter with suitable performance characteristics. Solid particles getting
into the measuring chamber might clog up the ovar gear.