Product family：
Servo tank gauge NMS81
Servo tank gauge NMS81
Proservo NMS81；Approval ATEX II 1/2G Ex db [ia Ga] IIC T6 Ga/Gb；Terminal Type Spring terminals；Power Supply/Display 85-264VAC; LCD + operation；Primary Output Modbus RS485；Secondary I/O Analogue Ex d/X
Order Code：NMS81-BC1BA1A2X0AC2AC22AAA1GSJICR
Name：Proservo NMS81
Configuration
| Code | Name | Order | Specification |
|---|---|---|---|
| 010 | Approval | BC | ATEX II 1/2G Ex db [ia Ga] IIC T6 Ga/Gb |
| 020 | Terminal Type | 1 | Spring terminals |
| 030 | Power Supply; Display | B | 85-264VAC; LCD + operation |
| 040 | Primary Output | A1 | Modbus RS485 |
| 050 | Secondary I/O Analogue | A2 | Ex d/XP, 2x 4-20mA HART, 2x RTD input |
| 060 | Secondary I/O Digital Ex d/XP | X0 | Not selected |
| 070 | Housing | AC | Transmitter Alu, coated, process 316/316L |
| 080 | Process Pressure | 2 | 0...6bar/600kPa/87psi |
| 090 | Electrical Connection | A | Thread M20, IP66/68 NEMA Type 4X/6P Encl. |
| 110 | Measuring Range; Wire; Diameter | C2 | 22m; AlloyC276; 0.2mm |
| 120 | Displacer Material; Type | 2AA | PTFE; 30mm cylindrical |
| 130 | Process Sealing | A1 | HNBR -30...150oC/-22...302oF |
| 140 | Process Connection | GSJ | DN80 PN10/16 B1, 316L flange EN1092-1 |
| 150 | Accuracy, Custody Transfer Approval | ICR | Standard version, w/o calibration certificate |
Configuration Explained
This is an NMS81 servo tank gauge, performing high accuracy level, interface and density measurement, with ATEX flameproof and intrinsically safe approval, 85-264VAC supply, with LCD display, main output Modbus RS485, the second channel 2 channels 4-20mA HART plus 2 RTD, aluminium housing with external coating, wetted 316L, 6bar pressure, 22 m range, AlloyC276 wire, PTFE float, HNBR seal resistant to 150°C, with DN80 flange, suitable for bus measurement in hazardous area tanks with corrosive media.
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