Large Digit LED Display
Product Range
Large Industrial Process Display
457 Large Display
The 457 is a large digit field mount display with IP66 enviromental protection, simple to use, programmable super bright RED LED meter. This large display is programmable via internal keypad or infra red remote control via easy to understand program menu. The input is universal so it will accept 4-20mA, 0-10V, thermocouple, RTD and mV. It has 2 relay outputs and RS485 on board as standard. The meter is also available in a blue, green and multi-colour which can change colour on threshold, analogue output and isolated 24VDC transmitter power supply.
Multi-Colour LED Options
The 457 Large digit display can be reconfigured via SIR Remote Control, typical viewing distance for a 57mm height LED is 25 mtr
Terminal Connections
Physical Dimmensions 457 Large Display
Specification
Power supply Power consumption 19V - 50V DC; 16V - 35V AC separated for 19V - 50V DC: max. 13,5 W; for 16V - 35V AC: max. 19,5 VADisplay LED, 4 x 57 mm, multicolour or ultra bright red, green, blue (according to order)
Displayed values -999 - 9999 + decimal point
Input current: 0-20 mA or 4-20 mA, input resistance < 65 ohm(typ. 30 ohm), overload-protected, input current limited to 50 mA;
voltage: 0-5 V, 1-5V, 0-10V or 2-10V, input resistance > 100 kohm
input resistance ohm thermoresistance: Pt100, Pt500, Pt1000 (automatic recognition of 2, 3 and 4-conductor connection, resistance
compensation of connecting conductors to 20 ohm at any conductor); measuring range: -100 degC - 600 degC
thermocouple: type K, S, J, T, N, R, B, E; measuring range: K: -200 degC - +1370 degC; S: -50 degC - +1768 degC; J: -210 degC - +1200 degC; T: -200 degC - +400 degC; N: -200 degC - +1300 degC; R: -50 degC - +1768 degC; B: +250 degC - +1820 degC; E: -200 degC - +1000 degC
milivoltage: 0-60 mV, 0-75 mV, 0-100 mV, 0-150 mV, > 1,5 M
accepted prolonged input overload: 20%
Accuracy 0.1% @25 degC ± one digit (inputs: current, voltage, milivoltage, thermoresistance, thermocouple K, J, E); 0.2%@ 25 degC (thermocouple N), 0.5%@25 degC (thermocouple S, T, R, B) Stability 50 ppm/ degC
Binary outputs 2 or 4 x REL Imax=1A, Umax=30VDC/250VAC (cos=1) or OC Imax=30mA, Umax=30VDC, Pmax=100mW
Analogue output (available with 2 x REL or OC, see ordering) active current: - passive current: isolated, max. 2,8-24 mA), active voltage: 0/1-5V, 0/2-10V (max. 0-11V), 2000
operating range 0/4 20 mA (max. 0-24 mA), load resistance 700 Ω max., resolution 13 bit range 4-20 mA ( load resistance 600 ohm@24VDC, resolution 13 bit range load resistance min. ohm, resolution 13 bit
Power supply output 24V DC +5%, -10% / max. 100 mA, stabilized Communication interface RS-485, 8N1 and 8N2, 1200 bit/s ÷ 115200 bit/s, Modbus RTU (not galvanically isolated)
Operating temp. 0 degC - +50 degC (standard), -20 degC - +50 degC (option)
Storage temp. -10 degC - +70 degC (standard), -20 degC - +70 degC (depending on option)
Protection class IP 67
Case wall mounting; material: ABS + glass fibre Dimensions (WxHxD) 230 x 140 x 96,5 mm
Weight 1176 g max