ZD340_07d_e.doc / Apr-17
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1. Available Models
The ZD, ZA and ZR counter series include a range of models with similar functions and
properties, but with different housings, displays and outputs.
ZA counters provide an additional high-speed analogue output which is not available with the
ZD or ZR models. However the ZR models have an additional RS485 interface, but otherwise all
details between ZD, ZA and ZR models are fully similar.
The following table explains the details of type designation and the possible options:
Z = electronic counter
D = display only, no analogue output
A = display and high-speed analogue output
R = display and RS-485 interface
3 = housing 96 x 48 mm (3.780 x 1.890’’)
and 4 high-speed transistor outputs
6 = housing 96 x 96 mm (3.780 x 3.780’’)
with 4 high-speed transistor outputs
and 4 relay outputs
3 = display 8 decades 9.15 mm/0.36’’ size
0 = no thumbwheel switches on front
2 = two thumbwheel sets (4 decade each)
4 = four thumbwheel sets (4 decade each)
ZD 330
