Lufft CHM 8k, User Manual, Page: 9 / 72

Operating Manual CHM 8k
R1.7 / 01-2020
Technical Data 9
Data interfaces
Standard interfaces RS485 half-duplex (ASCII); LAN (http, (S-)FTP, NetTools)
Optional interfaces DSL, RS485 full-duplex (4 wire)
Electrical parameters
Power supply 230 VAC ±10 % or 115 VAC ±10 %
Line frequency 50 Hz, 60 Hz
Power consumption
Max 450 VA with activated case heater (default);
Max 300 VA without activated case heater
Power consumption in W
(depends on supply voltage) Measuring unit heater: 250 W @115 / 230 VAC
Case heater: 150 W @115/ 230 VAC
UPS functionality (optional) Internal backup battery for the electronics (> 1 hour)
Equipment safety
General safety IEC 61010-1:2010 + A1
Laser Protection Class 1M according to IEC 60825-1:2014; complies with 21 CFR 1040.10
Protection housing IEC/ EN 60529: IP 65; IEC/EN 61010-1: IK06 (1 Joule)
Protection electrical safety Protection class I (protective earth needed)
Overvoltage Category II
Pollution degree in IP65
housing 2
EMC EN 61326 Class B (industrial use)
Conformity CE
Operating conditions
Temperature range -40 °C to +60 °C
Relative humidity 0%
– 100%
Wind 60 m/s
Maximum operating altitude 5000 m
Dimensions
Enclosure dimensions
(footprint x height)
W x H x L = 0.5 m x 0.5 m x 1.55 m
Packaging dimensions W x H x L = 0.75 m x 0.86 m x 1.80 m
Weight
Weight
70 kg (complete system)
9.5 kg (measuring unit
– heaviest replacement part)
Installation requirements
Suitable low-voltage
distribution systems TN-
S system: grounded mains, grounded CHM 8k enclosure,
neutral and protective conductor separate
TN-C
system: grounded enclosure CHM 8k, neutral and protective
conductor combined in one conductor
Connection type Fixed connection, grounding by means of ground connection clamp
(see Figure 12)
Resources to be provided by the operator
Lightning protection - Internal lightning protection is provided
- External lightning protection must be provided
Grounding Grounding system according to DIN V VDE 0185-3
Requirements for installation - Isolation device for disconnection from low-voltage network in
close proximity to the CHM 8k
- Easily accessible
-
Marked as belonging to the CHM 8k
- Pre-fuse only needed for 230 VAC variant: 10 A gG time-lag
Table 2 Technical data.