HT155 - HT157
EN - 58
10.5. GENERAL
CHARACTERISTICS
Display
Characteristics: LCD, (240x160pxl), backlit
Display update:
1Hz (numerical data), 10Hz (graphic data)
Power supply
Internal power supply:
4x1.5V alkaline batteries type IEC LR6, AA
Low battery indication:
symbol “ ”
and message “BATTERY LOW”
Duration:
approx. 8 hours
External power supply:
AC100-240V, 50/60Hz / 5VDC 2A external adapter
Mechanical characteristics
Dimensions:
285(L) x 90(W) x 39(H)mm
11 (L) x 4 (W) x 2 (H)”
Weight (batteries included):
approx. 500g (18 ounces)
Environmental conditions for use
Maximum altitude:
2000m
Reference temperature:
23°C ± 5°C ; (73°F ± 41°F)
Operating temperature:
5 ÷ 40 °C ; (41°F ÷ 104°F)
Operating humidity:
<80%RH (up to 31°C) and <50%RH (at 40°C)
Storing temperature:
-10 ÷ 60 °C ; (14°F ÷ 140°F)
Storing humidity:
< 70%RH
Reference standard
Statistic analysis and integration:
IEC 61672:2002 Class 1, CNS 7129
IEC 60651:1979 Type 1, IEC60804:2000 Type 1
1/1 and 1/3 analysis (HT157 only):
IEC 61260:1995 Class 1
This instrument complies with the requirements of European Directive EMC
2004/108/EC
10.6. ACCESSORIES
Instrument HT155 or HT157
Portable calibrator HT151
Windproof
protection
Mini-USB/USB cable for PC connection
USB Pen Drive type TRASCEND JF V30/2GB
Cable for USB Pen Drive connection to the instrument
AC/DC power supply with USB adapter cable
Rigid transport suitcase
Batteries
ISO9000 calibration certificate of instrument and calibrator
User
manual
Summary of Contents for HT155
Page 1: ... Copyright HT ITALIA 2011 Release EN 1 02 28 12 2011 HT155 HT157 User manual ...
Page 2: ......
Page 62: ...HT155 HT157 EN 60 12 APPENDIXES 12 1 APPENDIX 1 FREQUENCY WEIGHTING CHARACTERISTICS ...
Page 63: ...HT155 HT157 EN 61 12 2 APPENDIX 2 CHARACTERISTICS OF 1 3 OCTAVE BAND FILTER ...
Page 64: ...HT155 HT157 EN 62 ...
Page 65: ...HT155 HT157 EN 63 ...
Page 67: ...HT155 HT157 EN 65 12 4 APPENDIX 4 CHARACTERISTICS OF 4HZ HIGH PASS DIGITAL FILTER ...