Iso-Tech IDM 91E Manuel D'instructions page 8

2-2 Environmental Conditions:
Maximum Altitude : 2000m
Installation Category : IEC 1010 600V CAT II 300V CAT III.
Pollution Degree : 2
Operating Temperature : 0°C to 50°C, 0 to 80% R.H.
Storage Temperature : -20°C to 60°C, 0 to 80% R.H when battery removed from meter.
Temperature Coefficient : 0.15 x (Specified accuracy) / °C, <18°C or >28°C.
Power Requirements : Alkaline 9V battery, NEDA 1604A, JIS 6AM6, IEC 6LF22.
Battery Life : Alkaline 300 hours.
Dimensions (WxHxD) : 84mm x 175mm x 31mm, without holster
95mm x 192 mm x 50 mm, with holster.
Weight (including battery) : 340 gms, without holster
550 gms, with holster.
Supplied Accessories : Protective Holster, Battery (installed) and Instruction Manual.
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