IN-E-HL20-V1_16
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroLog HL20 and HL21 data logger:
User Guide
Instruction Manual
Document Type
Page
19
of 23
Document title
Service and data connector
HL20 / HL21
Interface type
UART (Universal Asynchronous Receiver Transmitter)
Maximum service cable length
5 m (16.4 ft)
General specifications
HL20 / HL21
Optional display
LC, 1 or 2 decimals resolution, backlight, alarm and low battery indication
LED indicator
5 sec, green flash when recording data
5 sec. red flash for out-of-limit value or logger problem
Housing material
ABS
Housing protection grade
HL20: IP 40, HL21: IP65
Overall dimensions
130 x 72 x 32 mm (5.1 x 2.8 x 1.3”)
Weight
About 210 g (7.4 oz)
Conformity with standards
HL20 / HL21
CE / EMC immunity
EMC Directive 2004/108/EG: 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)
FDA / GAMP directives
compatible
Environmental limits
HL20 / HL21
Operating limits
-10….60 °C (models w/o display), 0….50 °C (models with display)
0…100 %RH, non condensing
Critical environments
Humidity sensor: as per DV04-14.0803.02 - Critical chemicals
© 2015; Rotronic AG
IN-E-HL20-V1_16
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