| OPERATOR INTERFACE | 1250 L |
| DISPLAY | Type | LCD black background |
| Screen area (L x H) | 37×68 mm (1.46” x 2.68”) |
| Lighting | Backlit with LEDs, life > 40.000 hours @ 25 °C * with brightness level BACKL=0.8 |
| PV Display | Number of digits: 4 to 7 segments, with decimal point Digit height: 17 mm Color: white or “custom” |
| SV Display | Number of digits: 4 to 7 segments, with decimal point Digit height: 14 mm Color: green or “custom” |
| F Display | Number of digits: 5 to 14 segments, with decimal point Digit height: 9 mm Color: ambra or “custom” |
| Engineering units | Selectable, °C, °F or custom 1 Color: same as PV display |
| Alarms state signals | Number: 4 (1, 2, 3, 4) Color: red |
| Bargraph indicator, configurable | Type: graphic bargraph,11 segments Deviation between AL1 and PV |
| KEYPAD | | Keys number: 4, silicone ( R, INC,DEC,F) Type: mechanical |
| INPUTS | |
| MAIN INPUT | Sensor type | TC, RTD (PT100, JPT100), infrared sensor, DC linear sensor |
| Accuracy | TC inputs: Calibration accuracy: < +/- (0.25% of reading value in °C +0.1°C) Linearization accuracy: 0.1% of reading value Cold junction accuracy: < +/- 1.5°C a 25°C room temperature) Cold junction compensation: > 30:1 rejection to the change of the room RTD input: Calibration accuracy: < +/- (0.15% of reading value in °C +0.4°C) Temperature drift: < +/- (0.005% of reading value in °C +0.015°C )/°C from 25°C room temperature Linearization accuracy: 0.1% of reading value Linear inputs: Calibration accuracy:< 0.1% full scale Temperature drift: < +/- 0.005% full scale /°C at 25°C room temperature |
| Sampling time | 60 ms / 120 ms, selectable |
| Digital filter | 0.0. 20.0 s |
| Temperature unit of measurement | Degrees C / F, selectable from keypad |
| Signal interval | Type: linear Scale: -1999…9999, settable decimal point |
| TC (thermocouple) input | Thermocouple: J, K, R, S, T, C, D, B, E, L, L GOST, U, G, N, Pt20Rh- Pt40Rh Linearization: ITS90 or custom |
| RTD (resistance thermometer) input | Resistance thermometer: PT100, JPT100 Input impedance (Ri): ≥ 30 kΩ Linearization: DIN 43760 or custom Max. line resistance: 20 Ω |
| DC linear input | 0…60 mV input impedance (Ri): > 70 kΩ 0…1 V input impedance (Ri): > 15 kΩ 0…5 V / 0…10 V input impedance (Ri): > 30 kΩ 0/4…20 mA input impedance (Ri): 50 Ω Linearization: linear or custom |
| DIGITAL INPUTS | Type | voltage dry contact, or NPN 24 V – 4.5 mA, or PNP 12/24 V – max 3.6 mA (for detail see electrical connections) |
| Isolation | 500 V |
| Number | 5 max |
