User manual

8
Section 1 MC-III™ EXP Flow Analyzer
With the press of a single key, totals are saved to nonvolatile memory, minimizing the risk of data loss even if
a power outage occurs.
Up to 384 daily logs, 768 hourly logs, and 345 event logs can be archived and accessed quickly on demand.
Offering a variety of user-congurable display options, input and output options, RS-485 Modbus
®
compatibility, ow logging, and turbine owmeter linearization, the MC-III EXP is one of the most versatile
totalizers on the market. For specications, see Table 1.1, page 9.
An optional explosion-proof reset switch further expands the unit’s versatility, making it possible to reset the
total and view daily ow logs without opening the enclosure.
Product Identication
Each device is labeled with a serial tag that identies the product by part number and serial number and
identies the device’s input power requirements and safety classication. The CSA-approved device is
marked as shown in Figure 1.2. The ATEX-approved device is marked as shown in Figure 1.3. A description
of the electrical protection afforded by SIRA certication and associated safety markings are also shown in
Figure 1.3.
PART
SERIAL
167018
Figure 1.2—Serial tag for CSA-approved device
Equipment Group II, Category 2 (hazardous conditions
are likely to occur in normal operation occasionally (>10<1000 hours/year)
Explosive Atmosphere: Gas, Dust
Flameproof for explosive gas environments other than
mines; temperature class
CE marking and number of notified
body responsible for production
Explosion-proof marking
Certification numbers
Temperature tested for dust and suitable for use in
Zone 21 area; ingress protection: dust-tight and protected against
the effects of low-pressure jets of water from all directions;
maximum surface temperature: 85°C
NUFLO
TM
MC-III EXP FLOW ANALYZER
PART
SERIAL
FOR INSTALLATION & OPERATION INFO,
SEE MANUAL PART NO. 9A-50165003.
WARNING: DO NOT OPEN WHEN
AN EXPLOSIVE ATMOSPHERE
MAY BE PRESENT.
II 2 GD
AAAA
Ex d IIC T6 Gb (-40°C to 70°C) or
Ex tD A21 IP66 T85°C (-40°C to 70°C)
Sira 10ATEX1264X
IECEx SIR10.0127X
INPUT POWER: 6 to 30V
@ 6 mA
LOCATION OF MANUFACTURER
Figure 1.3—Serial tag for ATEX-approved device