| | | | | | |
| | | |
| | | www.nokeval.com Yrittajakatu 12 Tel. +358 3-342 4800 sales.nokeval.com FIN-37100 Nokia Fax. +358 3-342 2066 | |
| | | |
| | Loop Powered 4..20 mA LED-displays, model 301 and 305 | |
| | | |
| | • For process input 4-20 mA • Without external power supply • Loop resistance 240 ohm only • 4-digit processor based display • Scaling on front panel • 2 settable alarms (option) • Pass words for alarms and configuration • ABS-case rating IP 65, size: Models 301 & 302 100 x 100 x 57 mm Models 305 & 306 80 x 80 x 57 mm Autopowered bright red LED-displays need no external power supply. Current signal 4-20 mA provides the necessary energy. Therefore, it is possible to install the meter in places having no auxiliary power available. You can now replace the autopowered LCD-displays, having very poor visibility, by bright red LED-displays. There are four models according to optional alarms and plastic case (ABS) IP65 size: 100 x 100 mm basic model 301 without alarms and model 302 with two alarm contacts. Correspondingly models 305 and 306 are in 80 x 80 x 57 mm case. Both size versions have same functions. Display scaling and configuration by front panel buttons. Unit has digital filter for stabilizing the 4-digit display. In models 302 and 306 You may configure two optional alarms, high and low. Password is settable for entering configuration and alarm stages. | Technical specifications: | |
| | Input Display scaling Desimal point Accuracy Input resistance,301/305 - with alarms, 302/306 Alarm relays (option) Alarm mode Hysteresis Display Push buttons Case protection Case material and color Ambient temperature Terminals 301/302 305/306 Weight | 4..20 mA, linear or square root -999....+9999 Freely selectable 0.05% of span 240 ohm (voltage drop= 4,8V) 370 ohm (voltage drop =7,3 V) 2 solid state relays (SSR), max. 250 VAC, 150 mA High and low level Selectable 0..100 % 4-digit red LED, 14.5 mm, adjustable brightness Switches under front panel IP65 ABS-plastic, grey 0...+60 °C Detachable 2,5 mm2 Detachable 1,5 mmr* 200 g | |
| | | |
| | Ordering examples: 301-4/20 Basic model, case 100 x 100 x 57 mm 302-4/20 With alarms 305-4/20 Basic model, case 82 x 80 x 57 mm 306-4/20 With alarms | |
| | | |
| | Subject to change without notice | |
| | | |
| | | | | | |