Name: SX85-A digital display head
Dimensions: 70x41mm opening size: 69x38mm
Current: SX85-A Voltage: SX85-V
Technical Parameters:
Operating voltage: AC10V or DC5V
Real range: 0- ± 1999
Display: 0.5 inch LED
Basic error: AC: ± 1% DC: ± 0.5%
Environmental humidity: ≤ 85% RH
Ambient temperature: 0 to +40Lt; 0 & gt; C

Elite instrument prompts you: digital form selection knowledge

Digital display, that is, digital panel meter (DIGITAL PANEL METER) referred to, the general use of LED digital tube display, there are LCD liquid crystal display, used for industrial signal measurement, monitoring, control, regulation, transmission, remote communication.

In the selection should pay attention to the following questions:

1, Instrument size. That is the size of the instrument, which is a very basic problem. Digital form to be installed on the cabinet, so consider the overall coordination, may not fit too large, too small to see clearly the figures , In addition, the bulk of the general expansion of the general function of the instrument strong, the same function may be expensive, small size of the instrument may be less functional expansion of the current digital display panel of the international standard size are the following: 48 * 24mm ; 48 * 48mm; 48 * 96mm; 72 * 72mm; 96 * 96mm; 96 * 48mm; 160 * 80mm.

2, The number of digits.This is directly related to the accuracy of the digital display of the table, in general, the higher the display digits, more accurate measurement, the more expensive prices, mainly in the following categories: two (99, special) (999999, very few); three and a half (1999, ordinary digital form the mainstream); four (9999, intelligent digital form the mainstream); four and a half (19999); four and three quarters ); Five and more than five (common in the counter, the cumulative table and high-end instrument), the user can select a few precision measurement requirements of the digital form.

3, Input signal. Refers to the direct input instrument measuring signal, some industrial signal is directly connected to the instrument measurement, some signals are transformed into the instrument, you must figure out the nature of the measurement signal, or buy the instrument can not be used, Or even damage the instrument and the original equipment.To figure out the signal type: current or voltage, AC or DC, is the pulse signal or linear signal and so on.

But also to clarify the size of the signal. The name of the instrument and the input signal is not the same concept, to name a few examples: the input signal is 0-75mVdc ammeter (name is the ammeter, the input signal is the voltage signal, because the current through the shunt voltage Signal); input signal is 0-10Vdc tachometer (name is tachometer, the input signal is a voltmeter, because the converter will speed signal into a voltage signal).

4DC / DC switching power supply, 24Vdc (generally to order), 5Vdc (small panel meter), the power supply to work. .

5, Instrumentation. Instrument functions are generally modular, optional, instrumentation prices will vary with the function and will vary.

Digital display table has the following optional features: alarm function and alarm output group number (ie, relay action output), the power supply output and output voltage size and power, transmission output and transmission output type (4-20mA Or 0-10V, etc.), communication output and communication methods and protocols (RS485 or RS232, Modbus or other protocols), for the adjustment control instrumentation, optional features more, the specific reference to our selection of spectrum selection of a Standard models, and communicate with us and confirm the correct order before they can.

6, The more important parameters to look at: the measurement accuracy (the value of the smaller the more accurate), the response speed (the smaller the value of the faster response), the work environment, temperature coefficient (the smaller the value of the smaller temperature affected) overload

7, Special requirements. If you have special requirements can be put forward, let us confirm whether the requirements can not be taken for granted, such as: IP protection class, high temperature workplace, strong interference occasions, special signal occasions, special work and so on .

In fact, the digital form selection is not complicated, for simple digital form can be used to buy over the general, for the initial use or function of complex digital display as long as the user to grasp the above points, but also a good choice Purchase the right product.