Draft, E-m-hm4-v0_08 – ROTRONIC HM4 User Manual
Page 36

E-M-HM4-V0_08
ROTRONIC AG
Bassersdorf, Switzerland
Document Code
Unit
HM4 Humidity and Temperature Probe with
Heated Sensor
Instruction Manual
Document Type
Page 36 of 41
Document Title
© 2014; ROTRONIC AG
E-M-HM4-V0_08
Digital Interface
Interface type
RS-485
Baud rate
: 19,200
Parity
: none
Data bits
: 8
Stop bits
: 1
Service Connector
Interface type
UART (TTL Level), inside housing
Max. length of service cable
5 m (16.4 ft)
Sensor Heating (RoHumiHeat)
Heating temperature
0.1…10 °C above ambient temperature
Operating modes
Permanent, time interval or value-dependent
Sensor Cleaning (RoHumiClean)
Heating temperature
To 150 °C
Operating modes
Programmable time interval
General Specifications
Probe material
POM (
polyoxymethylene)
Filter material
Polyethylene, 20 µm pore size
Dimensions
238 x 29 mm (model with connector at housing)
281 x 25 mm, plus cable depending on order code (model with cable)
Weight
150 g (model with connector at housing)
Conformity with Standards
CE / EMC immunity
EMC Directive 2004/108/EC: EN 61000-6-1: 2007, EN 61000-6-2: 2005
EN 61000-6-3: 2007, EN 61000-6-4: 2007
Solder type
Lead free (RoHS directive)
Fire protection class
Corresponds to UL94-HB
FDA / GAMP directives
CFR21 Part 11 and GAMP5
DRAFT