Multipoint Indicator 538-8SC

Product catalog summary

Overview: The document describes the Nokeval multipoint indicator 538-8, designed for applications requiring simultaneous display, output signals, and alarms for multiple measurements. It features configurable input channels, alarms, and output options.

Specifications:

Inputs: 8 channels supporting thermocouples, RTDs, 0/4..20 mA, and 0..5/10V inputs. Each channel is individually configurable.
Outputs: 8 optional 0/4..20 mA outputs with galvanic isolation and reverse action capability.
Alarms: 2 standard relay alarms (230 VAC, 3 A) and up to 10 additional alarms on an optional card (60 VAC, 0.5 A).
Serial Ports: Optional RS232 or RS485 serial ports available.
Display: 4-digit, 14.5 mm red LED display with floating decimal point for enhanced readability.
Power Supply: 230 VAC or optional 24 VDC.

Sensor Specifications:

Pt100 Sensor: Range -200 to +700 °C, resolution 0.1% or 1 °C, accuracy 0.05% or 0.2 °C with 3-wire connection.
Thermocouples: Types K, J, J/DIN, R, S with accuracy 1 °C ± 1 digit, and 2 °C ± 1 digit for types R and S.
0/4..20 mA Inputs: Scalable range -999 to 9999, input resistance 15 Ω, accuracy 0.05% of span.
Voltage Inputs: Fixed ranges of 20, 50, 500, and 1000 mV, scalable ranges 0-1/5/10 and 1-5V, impedance 1 MΩ, accuracy 0.05% of span.
Potentiometers: Standard ranges 20..1000 Ω and 10 kΩ on request, accuracy 0.05%.

General Features: