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Transcript
Standard Devices Large-panel digital display ANZ GR01 Helmut Mauell GmbH • Am Rosenhügel 1–7 • D-42553 Velbert • Telefon (0 20 53) 1 30 • Fax (0 20 53) 1 34 03 Description of function The ANZ GR 01 large-panel digital display consists of a control unit and a display unit. The large-panel digital display with 4-digit, 7segment display (plus sign) allows both variable matching of the signal area to a digitally precise display (e.g. 0 mA to 20 mA = 0°C to 1800°C) and zero displacement (e.g. 0 mA to 24 mA = -100°C to 1800°C). The display unit is intended for flush integration into the M24 Mosaik System. The height of the displayed digits is 56 mm. The brightness of each individual 7-segment display can, to a large extent, be adjusted to the relevant local conditions using potentiometers, accessible after removing the front panel component. There is also a separate potentiometer for setting the brightness of the decimal point. The decimal point can be activated via a jumper which is also accessible after removing the front panel component. A further jumper can be used to set the suppression of the leading zeros. The 24 V DC supply and the LED test input are fed via a 4pin plug to the display unit. The control unit is supplied with two cables, each with a 4-pin plug. The control unit supply must be 24 V AC or DC. A built-in transformer ensures that the measuring circuit is isolated from the current supply. In order to retain the isolation, a supply voltage which is similarly isolated from the measuring circuit must be activated in the display unit. The display are can be adjusted in steps or using precision adjustment. The device has external inputs for a display memory which allows the display value to be "frozen". The display unit is connected to the control unit by means of two cables with plugs. Technical data Input parameters Connector pin assignment Control unit Direct voltage 0 V to 1 V ±1 V 0 V to 2 V ±2 V 0 V to 5 V ±5 V 0 V to 10 V ±10 V Supply voltage Supply voltage plug 1 24 V AC or DC Indication input Ue+/ IeUe- / Ie- plug 1 positive indication negative indication Memory input plug 2 RUN / HOLD + RUN / HOLD - memory input separated by optocouplers, at 24 V DC on RUN/HOLD+ and 0 V on RUN/HOLD-, current display value is saved and displayed Input impedance > 1 MΩ > 1 MΩ > 1 MΩ > 1 MΩ > 1 MΩ > 1 MΩ > 1 MΩ > 1 MΩ Direct current Voltage drop 0 mA to 1 mA approx. 1 V ±1 mA approx. 1 V 0 mA to 2 mA approx. 1 V ±2 mA approx. 1 V 0 mA to 20 mA approx. 1 V ±20 mA approx. 1 V 4 mA to 20 mA approx. 1 V Intermediate intervals for matching signal area to digitally precise display possible. Error limits Display unit Test input LT+ LT- plug 5 input separated by optocouplers positive LED test input, 24 V DC negative LED test input, 0 V Supply voltage 24 V DC 0V plug 5 positive supply voltage zero volt potential Measured data Measuring principle Overall error at + 23 °C ±(0,01 % + 1 digit) (in relation to display) with zero displacement additional ±0,01 % of indication value Temperature coefficient < 50 ppm / K of display Zero drift 2 µV / K Rejection ratio common mode (CMRR) series mode (SMRR) > 80 dB at 50 Hz > 60 dB at 50 Hz Display unit dual slope with automatic balance Type 7-segment-LED-display Colour red Averaging time approx. 80 ms Digit height approx. 56 mm Measuerments per second 3 (typical value) Digit range - 9.9.9.9 Sign automatic "-" display with negative values Decimal point can be set via jumper Overload display 0000 Measurement input Overload for voltage measurement for current measurement 2 bipolar, non-earthed 10-fold, max. 250 V 2-fold The difference between the lowest and highest display values must be ≥ 500 digits at e.g. 0 mA to 20 mA. Large-panel digital display ANZ GR01 Supply voltage Order details Control unit 24 V AC ±10 % 24 V DC ±20 % Display unit 24 V DC ±20 % Power input control unit large-panel display 1 W (typical value) 14 W (typical value) Order number 70 - 91 - 4 _ _ Application Measurement parameters Integration into M 24 Mosaik Systems direct current 8 Integration into M 24 Mosaik Systems direct current 9 Standard specifications Design as per DIN VDE 0411, part 1 Class I as per DIN VDE 0411, part 1 Insulation group B external, A internal as per VDE 0110 b / 2.79 Degree of protection Special design Test voltages casing IP40 as per DIN 40050 connections IP 00 as per DIN 40050 casing front IP 54 as per DIN 40050 indication input - current supply 1 kV Range 0 V to 1 V or 0 mA to 20 mA 0 ±1 V or ±20 mA 1 0 V to 2 V or 4 mA to 20 mA 2 ±2 V or 0 mA to 1 mA 3 0 V to 5 V or ±1 mA 4 ±5 V or 0 mA to 2 mA 5 ±2 mA 6 0 V to 10 V or ±10 V 7 Example of an order Digital large-panel display Range direct voltage 0 V to 10 V Order number 70 - 91 - 496 Rear view of Display unit ANZ GR01 Large-panel digital display ANZ GR01 3 Control unit Plug 1 24 V A 0V B Display unit DC AC or DC Plug 4 Ue+ / Ie+ C D Ue- / Ie- 4.2 4.3 D 4 x 0.14 mm2, finely stranded 4.4 4.5 Plug 2 unassigned unassigned RUN / HOLD+ A B C RUN / HOLD- D 4.6 Plug 3 0.14 mm2, 4x finely stranded A A LT- B 24 V DC C 0V D 0V 3.1 B1 3.2 B2 3.3 B4 3.4 B8 4 x 0.14 mm2, finely stranded Plug 5 LT+ 6 x 0.14 mm2, finely stranded 4.1 D2 D4 POL D1 D3 1a 1c 1b 1d 4 x 0.14 mm2, finely stranded Survey diagram 10 perspex, red, matt 20 96 (4 x 24) 66 56 front panel component 1 2 3 1 4 1 4 1 4 1 4.1 approx. 234 288 (12 x 24) 24 1 = brightness setting for 7-segment display D C B Plug 3 Plug 4 D B Plug 1 ca. 107 A C Control unit (ANZ VAR) D B Plug2 A Dimensioned drawing of mounted unit 5.0014.04 E 97 IIIII 3 = jumper for suppression of leading zeros right = with leading zeros left = without leading zeros 4 = jumper B1 to B4 for activating decimal point, 4.1 = no decimal point activated A C 2 = brightness setting for decimal point Plug 5 93