NZR DHL Series, Installation And Operating Manual

Page: 4 / 33

4
Illustrations
Figure 1: Housing dimensions
............................................................................. 6
Figure 2: Housing, control and display elements
................................................. 12
Figure 3: Layout of display
................................................................................ 13
Figure 4: Operational diagram of direct-measuring meter
.................................... 15
Figure 5: Operational diagram of transformer meter
............................................ 15
Figure 6: System layout – RS485 two-wire bus
................................................... 18
Figure 7: Detail drawing – RS485 terminating resistor
......................................... 18
Figure 8: DHZ with path disconnector
................................................................ 19
Tables
Table 1: Terminal dimensions, connection diameters, and torques
....................... 8
Table 2: Housing and display elements
............................................................. 12
Table 3: Description of display elements
........................................................... 13
Table 4: Technical data
.................................................................................... 14
Table 5: Specifications of inputs
....................................................................... 16
Table 6: Specifications of outputs
..................................................................... 16
Table 7: Specification of RS485 interface
.......................................................... 18
Table 8: Error code description
......................................................................... 20
Table 9: Standard menu
.................................................................................. 23
Table 10: Test mode
......................................................................................... 26
Table 11: Address menu
.................................................................................... 27
Table 12: Resolutions of the energy registers
...................................................... 28
Abbreviations
A
active energy
+A positive active energy (customer purchases from utility co.)
-A negative active energy (customer delivers to utility co.)
Cl. accuracy class
DIN German Institute for Standardization
EN European standard
UC electric utility company
IEC International Electrotechnical Commission
Imp. impulse
Imp./kWh impulses per kWh
L1, L2, L3 lead wires
LED light emitting diode
N neutral wire
P active power
PTB Federal Institute of Physics and Technology
S0 interface according to DIN 43 864