AK-4/1000 Automatic Mass Comparators

Product code: WL-413-0002

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Application: Automatic mass comparator AK-4/1000 series is intended to automatic determination of weights mass deviations with operator’s activity limited to the minimum. The comparator enables determining deviations of three tested weights in a single cycle. AK-4/1000 is designed to compare weights from 100 g to 1 kg. The instrument is commonly applicable in mass measuring laboratories, and particularly in certification units for weights classes E and F. Design and functionality: The supervising part of the mass comparator is a digital module which cooperates with a controller of instrument’s mechanical components. The digital module and the automatic loader are located in mass comparator’s weighing chamber. The instrument is operated by means of digital display which is plugged to mass comparator’s controller. The supervising elements are not integrated with mass comparator’s mechanical parts, thus enabling separation of instrument’s weighing chamber from ambient conditions influence.

Maximum capacity [Max]	1,02 kg
Readability [d]	0,005 mg
Weighing pan dimensions	ø50 mm
Repeatability at low load	0,012 mg (100 g)
Repeatability at nominal load	0,012 mg (1 kg)
Stabilization time	30 s
Operating temperature	+15° ÷ +30°C
Power supply	110 ÷ 230 V AC / 50 ÷ 60 Hz / 13,5 ÷ 16 V DC
Packaging dimensions	860×800×560 mm
Atmospheric humidity	40% ÷ 60%
Electric compensation range	- 10 ÷ + 20 g
Adjustment	external
Working temperature change rate	± 0,5 °C / 12 h (± 0,3 °C / 4 h)
Atmospheric humidity change rate	±2%/4h
Net weight	46,8 kg
Gross weight	66,8 kg
Weighing device dimensions	385×215×600 mm
Controling device dimensions	206×140×70 mm
Supplementary weights internal	half automatic
Supplementary weights external	-
M2	-
E1	100 g ÷ 1 kg
E2	100 g ÷ 1 kg
F1	100 g ÷ 1 kg
F2	100 g ÷ 1 kg
M1	-
Eccentricity (tested load)	0 mg
Chamber packaging size	950×420×630 mm
Anti-draft chamber dimensions	560×340×665 mm
Magazine positions	4

Repeatability is expressed as a standard deviation determined for 6 ABBA cycles. Standard deviation is experimentally determined under ambient conditions for calibration of E1 class mass standards specified in OIML R111 (Table C.1.) document.