Environmental requirements, Ce mark, Specifications for sm semi micro balances – Scientech 10K Series User Manual

Page 22

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Environmental Requirements:

This product is intended for indoor use at altitudes up to 2000 meters, Pollution Degree 1 or 2 in accordance with IEC 664 and transient overvoltages according to Installation

Categories (Overvoltage Categories) I, II and III. For mains supply, the minimum and normal category is II.

CE Mark:

All Scientech Electronic Balances carry the CE Mark and conform to the requirements of the following standards:
EN 55011: 1998

Limits and Methods of Measurement of Radio Disturbance Characteristics of Industrial, Scientific and Medical (ISM) Radio-frequency Equipment

EN 61326-1: 1997

EMC Requirements for Electrical Equipment for Measurement, Control and Laboratory Use

EN 61010-1: 1993

Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use

Specifications for SM Semi Micro Balances:

Model

SM 50

SM 99

SM 124D

SM 128D

Weighing Mode

Single Range

Dual Range

(Floating Tare™)

Capacity

50g

99g

40g

120g

80g

120g

Readability

.00001g

.00001g

.0001g

Tare Range

0-80g

0-99g

0-120g
0-120g

0-120g
0-120g

Repeatability
(Standard Deviation)

.00002g

.00004g

.00002g

.0001g

.00003g

.0001g

Linearity

±.00003g

±.00003g

±.00003g

±.0002g

±.00003g

±.0002g

Stabilization Time

~8 Seconds

Weighing Speed

Adaptive

Display Update Interval

800ms

Data Interface

RS-232 bidirectional interface is standard. Baud rates are 300, 600, 1200, 2400, 4800, 9600 and 19,200.

Pan Size

Circular 3.5 inch diameter

Operating Temperature

5°C to 40°C

Relative Humidity

80 % for temperatures up to 31°C decreasing linearly to 50 % at 40°C

Power Supply

115 Volts/60 Hz ± 10 %

230 Volts/50Hz or 60 Hz ± 10 %

Windscreen

7.5W x 8.25D x 9.5H

Calibration Weight

50g

100g 100g

100g

10g

50g

40g

50g

Housing (WxDxH)

7.5" x 11.25" x 3.25"

Weight

~ 13.8 lbs

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