Dahua Technology DHI-IPMECD-3021 Series User Manual

User's Manual
17
Table 4-1 Spring matching standard
Arm Type Arm Length (m) Number of Spring
Straight arm with light bar
L ≤ 3.7 1 × 5.2 spring
3.7 < L ≤ 4.5 1 × 6.3 spring
4.5 < L ≤ 5.0 2 × 6.3 spring
5.0 < L ≤ 5.5 1 × 5.2 spring + 2 × 6.3 spring
5.5 < L ≤ 6.0 3 × 6.3 spring
Folding arm
L ≤ 3.4 1 × 5.2 spring
3.4 < L ≤ 4 1 × 6.3 spring
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The bottom of the 5.2 spring is wrapped with a red threaded protective cover.
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The bottom of the 6.3 spring is wrapped with a blue threaded protective cover.

Dahua Technology DHI-IPMECD-3021 Series Specifications

General

Brand	Dahua Technology
Model	DHI-IPMECD-3021 Series
Category	Control Systems
Language	English