Seca 644/645 NEC2 Service Manuals
Seca 644 NEC2 Multifunctional handrail scales
The pre-TARE function with three memory cells automatically deducts a stored weight (such as a chair) to determine net weight. Moreover, the seca 644 is made mobile by two rubber wheels and a power supply provided by battery or power adapter. When the scale is connected to a printer, the time of weighing and the patient‘s weight are automatically recorded and printed by the time module.
These service instructions are intended for specialist staff responsible for maintenance and repair of the devices. These persons must be familiar with all the relevant electro-technical regulations and must adhere to them any time. These instructions are not suitable for users without specialist knowledge. These instructions describe how to service the devices [374| 376| 378| 634| 635| 644| 645| 656| 657| 664| 665| 674| 675| 676| 677| 684| 685| 703|
704| 264| 274| 284| 285| 954| 957| 959| 963] equipped with NEC2 electronic modules.
The device types for which these instructions apply are listed in the section headings. There are some identical models with NEC1 electronic modules. These instructions are not valid for those types. To enable you to identify the device, information about the model and serial number is found on the underside or on the frame of the device (see Note down this information so that you have it on hand in case you need to contact us for queries or spare parts orders.
The scale consists of the following main parts: the frame with up to four load cells, a display unit, a key panel and a power supply unit.
The action of a force causes elastic deformation of the load cell. A corresponding analog signal is supplied, which changes linearly with the force applied. This signal is measured and evaluated by the scale electronics and displayed as a weight value. shows the functional diagram for scales with separated modules for determining and displaying the weight.
Technical Data Seca 644 NEC2
|Capacity:||800 lbs, 360 kg|
|Graduation (g):||50 g / 0,1 lbs / 0,1 lbs|
|Power supply:||Rechargable batteries, Power adapter|
|Measure (W x H x D):||640 x 1150 x 660 mm , 25,2 x 45,3 x 26 inch|
|Net weight:||25,4 kg , 55,9 lbs|
|Functions and Properties:||PRINT, Overload protection, Auto-PRINT, Transport custors, TARE, Auto-clear, Pre-TARE, HOLD, Auto-HOLD, BMI, kg/lbs/sts switch-over, Automatic switch-off, Wireless interface, SEND, RESET, Damping, Auto-SEND|
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