The NRF81 Tankside Monitor (TSM) is used in combination with Varec radar gauges for bulk storage applications at tank farms, terminals and refineries. It is designed to integrate and collect tank gauging data and provide detailed information for storage and process applications.Specifications
Primary Outputs
MODBUS RS485
V1
4-20mA HART Ex d/XP, RTD input
4-20mA HART Ex i/IS, RTD input
Net Weight
12 kg (26 lbs) for housing plus electronics
Enclosure Materials
Electrical compartment: aluminium (AC 43000 T6) or stainless steel (316L)
Window: glass
Rated IP66/68, NEMA Type 4x/6P enclosure
Cable Specs
Standard device cable for the power line
HART communication line: Standard device cable only if analog, otherwise shielded cable
MODBUS communication line: Shielded cable
V1 communication line: Twisted pair screened or unscreened cable
Power
High voltage type: 85 to 264 VAC, 50/ 60 Hz, 28.8 VA
Low voltage type: In preparation
Bus inputs are electrically isolated from the other electronics
Temperature
Storage: -50 to +80° C (-58 to +176° F)
Ambient: Device: -40 to +60° C (-40 to +140° F) / Display Module: -20 to +70° C (-4 to
+158° F)
Approvals
FM, ATEX and IECExOptions
Approvals
ATEX II 2(1)G Ex db[ia Ga] IIC T6 Gb
FM C/US XP-AIS Cl.I Div. 1 Gr. BCD T6 AEx d[ia] IIC T6
IEC Ex db[ia Ga] IIC T6 Gb
SIL
Communications
Primart Output:
Modbus RS485
V1
4-20mA HART Ex d/XP, RTD input
4-20mA HART Ex i/IS, RTD input
Secondary I/O Analogue:
Ex d/XP, 1x 4-20mA HART, 1x RTD input
Ex d/XP, 2x 4-20mA HART, 2x RTD input
Ex i/IS, 1x 4-20mA HART, 1x RTD input
Ex i/IS, 2x 4-20mA HART, 2x RTD input
1x Ex i/IS 4-20mA HART, 2x RTD input + 1x Ex d/XP 4-20mA HART
Secondary I/O Digital Ex D/XP:
2x relay / 2x module discrete
4x relay / 4x module discrete
6x relay / 6x module discrete
Modbus RS485
Electrical
Thread M20, IP66/68 NEMA Type 4X/6P Encl.
Thread M25, IP66/68 NEMA Type 4X/6P Encl.
Thread G1/2, IP66/68 NEMA Type 4X/6P Encl.
Thread G3/4, IP66/68 NEMA Type 4X/6P Encl.
Thread NPT1/2, IP66/68 NEMA Type 4X/6P Encl.
Thread NPT3/4, IP66/68 NEMA Type 4X/6P Encl
Language
English
German
Japanese
Antenna
50mm/2?
80mm/3?
100mm/4?, align. device
Housing
Transmitter Aluminum, coated
