- The MSR820V monitors up to 8 PTC-resistor-circuits at the same time. A common relay signals an alarm or an error in a sensorcircuit. The inputs can be enabled or disabled during operation. - The MSR820V can also be used as a fault annuciator for collective reports.
- 1-8 PTC-circuits, each 1…6 PTC in series (max. coldresistance 1500Ω/circuit)
- Easy activating/deactivating of PTC-circuits (display with LEDs)
- 2 potential-free relay-outputs, display of switching state with LEDs
- Display of state of PTC-circuits with 2 LEDs per circuit
- Electronic reclosing-lock (disconnectible with bridge Y1-Y2)
- monitoring of contacts for collective fault-reports
- Programmable functions:
+ Monitoring of short-circuit of PTCs (OFF / ON)
+ External Reset as normally closed (nc) or open (no) contact (Y1, Y2)
+ Power-fail-safe reclosing lock (OFF / ON)
+ Function of relay:
K1 and K2 closed-current mode
K1 and K2 operating-current mode
K1 closed- and K2 operating-current-mode
- Universal supply-voltage AC/DC 24 – 240 V
- Mounting on DIN-rail 35mm EN 60715 or wallmount (Option)
- Mounting height 55 mm
Thông số kỹ thuật
- Rated supply-voltage Us.......AC/DC 24-240 V 0/50/60 Hz + 25/-20 %, <1W,<3VA ; DC 20,4 - 297 V ....... AC 20 - 264 V
- Connectable PTC-resistors.......8 x 1...6 pieces according to DIN 44081/82
- Switching Point.......3,3 kΩ...4 kΩ typical 3,65 kΩ
- Output Relay.......2 x 1 change-over contact (CO)
- Type of contact.......AgSnO2
- Testing Conditions.......see general technical information
- Rated ambient Temperature range.......-20...+55 °C
- Dimensions H x W x D.......Design V4: 90 x 70 x 58 mm, mounting height 55 mm
- Attachment.......on rail NS 35 mm according to EN 60 715 or with screws M4 (option)
- Protection Housing / Terminals.......IP 30 / IP 20
- Weight.......app. 180 g